From c2d6730f3d46a777e7fee1e69503b73682279972 Mon Sep 17 00:00:00 2001
From: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
Date: Mon, 15 Jun 2026 13:19:17 +1200
Subject: [PATCH] Mark user-configurable classes as final (part 5/21)

Add the C++ `final` specifier to leaf, user-configurable component classes and
automation action/trigger/condition primitives so that classes meant to be
terminal cannot be subclassed by external components. Only classes never used as
a base anywhere in the tree are marked. Part 5 of 21, split alphabetically by
component (dfrobot_sen0395 .. esp32_ble_beacon).
---
 .../components/dfrobot_sen0395/automation.h   |  4 +--
 .../dfrobot_sen0395/dfrobot_sen0395.h         |  2 +-
 .../switch/dfrobot_sen0395_switch.h           |  8 +++---
 esphome/components/dht/dht.h                  |  2 +-
 esphome/components/dht12/dht12.h              |  2 +-
 esphome/components/display/display.h          | 12 ++++----
 .../components/display_menu_base/automation.h | 28 +++++++++----------
 .../components/display_menu_base/menu_item.h  | 12 ++++----
 esphome/components/dlms_meter/dlms_meter.h    |  2 +-
 esphome/components/dps310/dps310.h            |  2 +-
 esphome/components/ds1307/ds1307.h            |  6 ++--
 esphome/components/ds2484/ds2484.h            |  2 +-
 esphome/components/dsmr/dsmr.h                |  2 +-
 .../components/duty_cycle/duty_cycle_sensor.h |  2 +-
 .../components/duty_time/duty_time_sensor.h   |  4 +--
 esphome/components/e131/e131.h                |  2 +-
 esphome/components/ee895/ee895.h              |  2 +-
 .../ektf2232/touchscreen/ektf2232.h           |  2 +-
 esphome/components/emc2101/emc2101.h          |  2 +-
 .../emc2101/output/emc2101_output.h           |  2 +-
 .../emc2101/sensor/emc2101_sensor.h           |  2 +-
 esphome/components/emmeti/emmeti.h            |  2 +-
 esphome/components/emontx/emontx.h            |  4 +--
 .../components/emontx/sensor/emontx_sensor.h  |  2 +-
 esphome/components/endstop/endstop_cover.h    |  2 +-
 esphome/components/ens160_i2c/ens160_i2c.h    |  2 +-
 esphome/components/ens160_spi/ens160_spi.h    |  6 ++--
 esphome/components/ens210/ens210.h            |  2 +-
 esphome/components/es7210/es7210.h            |  2 +-
 esphome/components/es7243e/es7243e.h          |  2 +-
 esphome/components/es8156/es8156.h            |  2 +-
 esphome/components/es8311/es8311.h            |  2 +-
 esphome/components/es8388/es8388.h            |  2 +-
 .../es8388/select/adc_input_mic_select.h      |  2 +-
 .../es8388/select/dac_output_select.h         |  2 +-
 esphome/components/esp32/gpio.h               |  2 +-
 esphome/components/esp32_ble/ble.h            |  8 +++---
 .../esp32_ble_beacon/esp32_ble_beacon.h       |  2 +-
 38 files changed, 74 insertions(+), 74 deletions(-)

diff --git a/esphome/components/dfrobot_sen0395/automation.h b/esphome/components/dfrobot_sen0395/automation.h
index bd91381d47..a5f4c99014 100644
--- a/esphome/components/dfrobot_sen0395/automation.h
+++ b/esphome/components/dfrobot_sen0395/automation.h
@@ -8,13 +8,13 @@
 namespace esphome::dfrobot_sen0395 {
 
 template<typename... Ts>
-class DfrobotSen0395ResetAction : public Action<Ts...>, public Parented<DfrobotSen0395Component> {
+class DfrobotSen0395ResetAction final : public Action<Ts...>, public Parented<DfrobotSen0395Component> {
  public:
   void play(const Ts &...x) { this->parent_->enqueue(make_unique<ResetSystemCommand>()); }
 };
 
 template<typename... Ts>
-class DfrobotSen0395SettingsAction : public Action<Ts...>, public Parented<DfrobotSen0395Component> {
+class DfrobotSen0395SettingsAction final : public Action<Ts...>, public Parented<DfrobotSen0395Component> {
  public:
   TEMPLATABLE_VALUE(int8_t, factory_reset)
   TEMPLATABLE_VALUE(int8_t, start_after_power_on)
diff --git a/esphome/components/dfrobot_sen0395/dfrobot_sen0395.h b/esphome/components/dfrobot_sen0395/dfrobot_sen0395.h
index 03e3b6b6ec..448a18a477 100644
--- a/esphome/components/dfrobot_sen0395/dfrobot_sen0395.h
+++ b/esphome/components/dfrobot_sen0395/dfrobot_sen0395.h
@@ -36,7 +36,7 @@ class CircularCommandQueue {
   std::unique_ptr<Command> commands_[COMMAND_QUEUE_SIZE];
 };
 
-class DfrobotSen0395Component : public uart::UARTDevice, public Component {
+class DfrobotSen0395Component final : public uart::UARTDevice, public Component {
 #ifdef USE_SWITCH
   SUB_SWITCH(sensor_active)
   SUB_SWITCH(turn_on_led)
diff --git a/esphome/components/dfrobot_sen0395/switch/dfrobot_sen0395_switch.h b/esphome/components/dfrobot_sen0395/switch/dfrobot_sen0395_switch.h
index d83734b034..1c2e929b24 100644
--- a/esphome/components/dfrobot_sen0395/switch/dfrobot_sen0395_switch.h
+++ b/esphome/components/dfrobot_sen0395/switch/dfrobot_sen0395_switch.h
@@ -9,22 +9,22 @@ namespace esphome::dfrobot_sen0395 {
 
 class DfrobotSen0395Switch : public switch_::Switch, public Component, public Parented<DfrobotSen0395Component> {};
 
-class Sen0395PowerSwitch : public DfrobotSen0395Switch {
+class Sen0395PowerSwitch final : public DfrobotSen0395Switch {
  public:
   void write_state(bool state) override;
 };
 
-class Sen0395LedSwitch : public DfrobotSen0395Switch {
+class Sen0395LedSwitch final : public DfrobotSen0395Switch {
  public:
   void write_state(bool state) override;
 };
 
-class Sen0395UartPresenceSwitch : public DfrobotSen0395Switch {
+class Sen0395UartPresenceSwitch final : public DfrobotSen0395Switch {
  public:
   void write_state(bool state) override;
 };
 
-class Sen0395StartAfterBootSwitch : public DfrobotSen0395Switch {
+class Sen0395StartAfterBootSwitch final : public DfrobotSen0395Switch {
  public:
   void write_state(bool state) override;
 };
diff --git a/esphome/components/dht/dht.h b/esphome/components/dht/dht.h
index 0c535f7cf6..86292e144f 100644
--- a/esphome/components/dht/dht.h
+++ b/esphome/components/dht/dht.h
@@ -18,7 +18,7 @@ enum DHTModel : uint8_t {
 };
 
 /// Component for reading temperature/humidity measurements from DHT11/DHT22 sensors.
-class DHT : public PollingComponent {
+class DHT final : public PollingComponent {
  public:
   /** Manually select the DHT model.
    *
diff --git a/esphome/components/dht12/dht12.h b/esphome/components/dht12/dht12.h
index 5f4f822e70..b835ac1648 100644
--- a/esphome/components/dht12/dht12.h
+++ b/esphome/components/dht12/dht12.h
@@ -6,7 +6,7 @@
 
 namespace esphome::dht12 {
 
-class DHT12Component : public PollingComponent, public i2c::I2CDevice {
+class DHT12Component final : public PollingComponent, public i2c::I2CDevice {
  public:
   void setup() override;
   void dump_config() override;
diff --git a/esphome/components/display/display.h b/esphome/components/display/display.h
index 6d0b7acfe8..3a136937f6 100644
--- a/esphome/components/display/display.h
+++ b/esphome/components/display/display.h
@@ -796,7 +796,7 @@ class Display : public PollingComponent {
   bool show_test_card_{false};
 };
 
-class DisplayPage {
+class DisplayPage final {
  public:
   DisplayPage(display_writer_t writer);
   void show();
@@ -814,7 +814,7 @@ class DisplayPage {
   DisplayPage *next_{nullptr};
 };
 
-template<typename... Ts> class DisplayPageShowAction : public Action<Ts...> {
+template<typename... Ts> class DisplayPageShowAction final : public Action<Ts...> {
  public:
   TEMPLATABLE_VALUE(DisplayPage *, page)
 
@@ -826,7 +826,7 @@ template<typename... Ts> class DisplayPageShowAction : public Action<Ts...> {
   }
 };
 
-template<typename... Ts> class DisplayPageShowNextAction : public Action<Ts...> {
+template<typename... Ts> class DisplayPageShowNextAction final : public Action<Ts...> {
  public:
   DisplayPageShowNextAction(Display *buffer) : buffer_(buffer) {}
 
@@ -835,7 +835,7 @@ template<typename... Ts> class DisplayPageShowNextAction : public Action<Ts...>
   Display *buffer_;
 };
 
-template<typename... Ts> class DisplayPageShowPrevAction : public Action<Ts...> {
+template<typename... Ts> class DisplayPageShowPrevAction final : public Action<Ts...> {
  public:
   DisplayPageShowPrevAction(Display *buffer) : buffer_(buffer) {}
 
@@ -844,7 +844,7 @@ template<typename... Ts> class DisplayPageShowPrevAction : public Action<Ts...>
   Display *buffer_;
 };
 
-template<typename... Ts> class DisplayIsDisplayingPageCondition : public Condition<Ts...> {
+template<typename... Ts> class DisplayIsDisplayingPageCondition final : public Condition<Ts...> {
  public:
   DisplayIsDisplayingPageCondition(Display *parent) : parent_(parent) {}
 
@@ -856,7 +856,7 @@ template<typename... Ts> class DisplayIsDisplayingPageCondition : public Conditi
   DisplayPage *page_;
 };
 
-class DisplayOnPageChangeTrigger : public Trigger<DisplayPage *, DisplayPage *> {
+class DisplayOnPageChangeTrigger final : public Trigger<DisplayPage *, DisplayPage *> {
  public:
   explicit DisplayOnPageChangeTrigger(Display *parent) { parent->add_on_page_change_trigger(this); }
   void process(DisplayPage *from, DisplayPage *to);
diff --git a/esphome/components/display_menu_base/automation.h b/esphome/components/display_menu_base/automation.h
index d4f83055d1..be0044ffa4 100644
--- a/esphome/components/display_menu_base/automation.h
+++ b/esphome/components/display_menu_base/automation.h
@@ -5,7 +5,7 @@
 
 namespace esphome::display_menu_base {
 
-template<typename... Ts> class UpAction : public Action<Ts...> {
+template<typename... Ts> class UpAction final : public Action<Ts...> {
  public:
   explicit UpAction(DisplayMenuComponent *menu) : menu_(menu) {}
 
@@ -15,7 +15,7 @@ template<typename... Ts> class UpAction : public Action<Ts...> {
   DisplayMenuComponent *menu_;
 };
 
-template<typename... Ts> class DownAction : public Action<Ts...> {
+template<typename... Ts> class DownAction final : public Action<Ts...> {
  public:
   explicit DownAction(DisplayMenuComponent *menu) : menu_(menu) {}
 
@@ -25,7 +25,7 @@ template<typename... Ts> class DownAction : public Action<Ts...> {
   DisplayMenuComponent *menu_;
 };
 
-template<typename... Ts> class LeftAction : public Action<Ts...> {
+template<typename... Ts> class LeftAction final : public Action<Ts...> {
  public:
   explicit LeftAction(DisplayMenuComponent *menu) : menu_(menu) {}
 
@@ -35,7 +35,7 @@ template<typename... Ts> class LeftAction : public Action<Ts...> {
   DisplayMenuComponent *menu_;
 };
 
-template<typename... Ts> class RightAction : public Action<Ts...> {
+template<typename... Ts> class RightAction final : public Action<Ts...> {
  public:
   explicit RightAction(DisplayMenuComponent *menu) : menu_(menu) {}
 
@@ -45,7 +45,7 @@ template<typename... Ts> class RightAction : public Action<Ts...> {
   DisplayMenuComponent *menu_;
 };
 
-template<typename... Ts> class EnterAction : public Action<Ts...> {
+template<typename... Ts> class EnterAction final : public Action<Ts...> {
  public:
   explicit EnterAction(DisplayMenuComponent *menu) : menu_(menu) {}
 
@@ -55,7 +55,7 @@ template<typename... Ts> class EnterAction : public Action<Ts...> {
   DisplayMenuComponent *menu_;
 };
 
-template<typename... Ts> class ShowAction : public Action<Ts...> {
+template<typename... Ts> class ShowAction final : public Action<Ts...> {
  public:
   explicit ShowAction(DisplayMenuComponent *menu) : menu_(menu) {}
 
@@ -65,7 +65,7 @@ template<typename... Ts> class ShowAction : public Action<Ts...> {
   DisplayMenuComponent *menu_;
 };
 
-template<typename... Ts> class HideAction : public Action<Ts...> {
+template<typename... Ts> class HideAction final : public Action<Ts...> {
  public:
   explicit HideAction(DisplayMenuComponent *menu) : menu_(menu) {}
 
@@ -75,7 +75,7 @@ template<typename... Ts> class HideAction : public Action<Ts...> {
   DisplayMenuComponent *menu_;
 };
 
-template<typename... Ts> class ShowMainAction : public Action<Ts...> {
+template<typename... Ts> class ShowMainAction final : public Action<Ts...> {
  public:
   explicit ShowMainAction(DisplayMenuComponent *menu) : menu_(menu) {}
 
@@ -84,7 +84,7 @@ template<typename... Ts> class ShowMainAction : public Action<Ts...> {
  protected:
   DisplayMenuComponent *menu_;
 };
-template<typename... Ts> class IsActiveCondition : public Condition<Ts...> {
+template<typename... Ts> class IsActiveCondition final : public Condition<Ts...> {
  public:
   explicit IsActiveCondition(DisplayMenuComponent *menu) : menu_(menu) {}
   bool check(const Ts &...x) override { return this->menu_->is_active(); }
@@ -93,7 +93,7 @@ template<typename... Ts> class IsActiveCondition : public Condition<Ts...> {
   DisplayMenuComponent *menu_;
 };
 
-class DisplayMenuOnEnterTrigger : public Trigger<const MenuItem *> {
+class DisplayMenuOnEnterTrigger final : public Trigger<const MenuItem *> {
  public:
   explicit DisplayMenuOnEnterTrigger(MenuItem *parent) : parent_(parent) {
     parent->add_on_enter_callback([this]() { this->trigger(this->parent_); });
@@ -103,7 +103,7 @@ class DisplayMenuOnEnterTrigger : public Trigger<const MenuItem *> {
   MenuItem *parent_;
 };
 
-class DisplayMenuOnLeaveTrigger : public Trigger<const MenuItem *> {
+class DisplayMenuOnLeaveTrigger final : public Trigger<const MenuItem *> {
  public:
   explicit DisplayMenuOnLeaveTrigger(MenuItem *parent) : parent_(parent) {
     parent->add_on_leave_callback([this]() { this->trigger(this->parent_); });
@@ -113,7 +113,7 @@ class DisplayMenuOnLeaveTrigger : public Trigger<const MenuItem *> {
   MenuItem *parent_;
 };
 
-class DisplayMenuOnValueTrigger : public Trigger<const MenuItem *> {
+class DisplayMenuOnValueTrigger final : public Trigger<const MenuItem *> {
  public:
   explicit DisplayMenuOnValueTrigger(MenuItem *parent) : parent_(parent) {
     parent->add_on_value_callback([this]() { this->trigger(this->parent_); });
@@ -123,7 +123,7 @@ class DisplayMenuOnValueTrigger : public Trigger<const MenuItem *> {
   MenuItem *parent_;
 };
 
-class DisplayMenuOnNextTrigger : public Trigger<const MenuItem *> {
+class DisplayMenuOnNextTrigger final : public Trigger<const MenuItem *> {
  public:
   explicit DisplayMenuOnNextTrigger(MenuItemCustom *parent) : parent_(parent) {
     parent->add_on_next_callback([this]() { this->trigger(this->parent_); });
@@ -133,7 +133,7 @@ class DisplayMenuOnNextTrigger : public Trigger<const MenuItem *> {
   MenuItemCustom *parent_;
 };
 
-class DisplayMenuOnPrevTrigger : public Trigger<const MenuItem *> {
+class DisplayMenuOnPrevTrigger final : public Trigger<const MenuItem *> {
  public:
   explicit DisplayMenuOnPrevTrigger(MenuItemCustom *parent) : parent_(parent) {
     parent->add_on_prev_callback([this]() { this->trigger(this->parent_); });
diff --git a/esphome/components/display_menu_base/menu_item.h b/esphome/components/display_menu_base/menu_item.h
index f3c41583f7..d5732377e3 100644
--- a/esphome/components/display_menu_base/menu_item.h
+++ b/esphome/components/display_menu_base/menu_item.h
@@ -70,7 +70,7 @@ class MenuItem {
   CallbackManager<void()> on_value_callbacks_{};
 };
 
-class MenuItemMenu : public MenuItem {
+class MenuItemMenu final : public MenuItem {
  public:
   explicit MenuItemMenu() : MenuItem(MENU_ITEM_MENU) {}
   void add_item(MenuItem *item) {
@@ -97,7 +97,7 @@ class MenuItemEditable : public MenuItem {
 };
 
 #ifdef USE_SELECT
-class MenuItemSelect : public MenuItemEditable {
+class MenuItemSelect final : public MenuItemEditable {
  public:
   explicit MenuItemSelect() : MenuItemEditable(MENU_ITEM_SELECT) {}
   void set_select_variable(select::Select *var) { this->select_var_ = var; }
@@ -114,7 +114,7 @@ class MenuItemSelect : public MenuItemEditable {
 #endif
 
 #ifdef USE_NUMBER
-class MenuItemNumber : public MenuItemEditable {
+class MenuItemNumber final : public MenuItemEditable {
  public:
   explicit MenuItemNumber() : MenuItemEditable(MENU_ITEM_NUMBER) {}
   void set_number_variable(number::Number *var) { this->number_var_ = var; }
@@ -135,7 +135,7 @@ class MenuItemNumber : public MenuItemEditable {
 #endif
 
 #ifdef USE_SWITCH
-class MenuItemSwitch : public MenuItemEditable {
+class MenuItemSwitch final : public MenuItemEditable {
  public:
   explicit MenuItemSwitch() : MenuItemEditable(MENU_ITEM_SWITCH) {}
   void set_switch_variable(switch_::Switch *var) { this->switch_var_ = var; }
@@ -158,7 +158,7 @@ class MenuItemSwitch : public MenuItemEditable {
 };
 #endif
 
-class MenuItemCommand : public MenuItem {
+class MenuItemCommand final : public MenuItem {
  public:
   explicit MenuItemCommand() : MenuItem(MENU_ITEM_COMMAND) {}
 
@@ -166,7 +166,7 @@ class MenuItemCommand : public MenuItem {
   bool select_prev() override;
 };
 
-class MenuItemCustom : public MenuItemEditable {
+class MenuItemCustom final : public MenuItemEditable {
  public:
   explicit MenuItemCustom() : MenuItemEditable(MENU_ITEM_CUSTOM) {}
   template<typename F> void add_on_next_callback(F &&cb) { this->on_next_callbacks_.add(std::forward<F>(cb)); }
diff --git a/esphome/components/dlms_meter/dlms_meter.h b/esphome/components/dlms_meter/dlms_meter.h
index cdc53d5685..fc4721843f 100644
--- a/esphome/components/dlms_meter/dlms_meter.h
+++ b/esphome/components/dlms_meter/dlms_meter.h
@@ -98,7 +98,7 @@ struct CustomPattern {
   std::optional<std::array<uint8_t, 6>> default_obis;
 };
 
-class DlmsMeterComponent : public Component, public uart::UARTDevice {
+class DlmsMeterComponent final : public Component, public uart::UARTDevice {
  public:
   DlmsMeterComponent(uint32_t receive_timeout_ms, bool skip_crc_check,
                      std::optional<std::array<uint8_t, 16>> decryption_key,
diff --git a/esphome/components/dps310/dps310.h b/esphome/components/dps310/dps310.h
index 09143bf6b8..4dd23985d7 100644
--- a/esphome/components/dps310/dps310.h
+++ b/esphome/components/dps310/dps310.h
@@ -35,7 +35,7 @@ static const uint8_t DPS310_INIT_TIMEOUT = 20;       // How long to wait for DPS
 static const uint8_t DPS310_NUM_COEF_REGS = 18;      // Number of coefficients we need to read from the device
 static const int32_t DPS310_SCALE_FACTOR = 1572864;  // Measurement compensation scale factor
 
-class DPS310Component : public PollingComponent, public i2c::I2CDevice {
+class DPS310Component final : public PollingComponent, public i2c::I2CDevice {
  public:
   void setup() override;
   void dump_config() override;
diff --git a/esphome/components/ds1307/ds1307.h b/esphome/components/ds1307/ds1307.h
index 2004978cc6..238fc7b21a 100644
--- a/esphome/components/ds1307/ds1307.h
+++ b/esphome/components/ds1307/ds1307.h
@@ -6,7 +6,7 @@
 
 namespace esphome::ds1307 {
 
-class DS1307Component : public time::RealTimeClock, public i2c::I2CDevice {
+class DS1307Component final : public time::RealTimeClock, public i2c::I2CDevice {
  public:
   void setup() override;
   void update() override;
@@ -55,12 +55,12 @@ class DS1307Component : public time::RealTimeClock, public i2c::I2CDevice {
   } ds1307_;
 };
 
-template<typename... Ts> class WriteAction : public Action<Ts...>, public Parented<DS1307Component> {
+template<typename... Ts> class WriteAction final : public Action<Ts...>, public Parented<DS1307Component> {
  public:
   void play(const Ts &...x) override { this->parent_->write_time(); }
 };
 
-template<typename... Ts> class ReadAction : public Action<Ts...>, public Parented<DS1307Component> {
+template<typename... Ts> class ReadAction final : public Action<Ts...>, public Parented<DS1307Component> {
  public:
   void play(const Ts &...x) override { this->parent_->read_time(); }
 };
diff --git a/esphome/components/ds2484/ds2484.h b/esphome/components/ds2484/ds2484.h
index 9e6bb08858..b3337539ce 100644
--- a/esphome/components/ds2484/ds2484.h
+++ b/esphome/components/ds2484/ds2484.h
@@ -8,7 +8,7 @@
 
 namespace esphome::ds2484 {
 
-class DS2484OneWireBus : public one_wire::OneWireBus, public i2c::I2CDevice, public Component {
+class DS2484OneWireBus final : public one_wire::OneWireBus, public i2c::I2CDevice, public Component {
  public:
   void setup() override;
   void dump_config() override;
diff --git a/esphome/components/dsmr/dsmr.h b/esphome/components/dsmr/dsmr.h
index 3642309c26..321fbab824 100644
--- a/esphome/components/dsmr/dsmr.h
+++ b/esphome/components/dsmr/dsmr.h
@@ -65,7 +65,7 @@ using MyData = dsmr_parser::ParsedData<DSMR_TEXT_SENSOR_LIST(DSMR_IDENTITY, DSMR
 using MyData = dsmr_parser::ParsedData<DSMR_SENSOR_LIST(DSMR_IDENTITY, DSMR_COMMA)>;
 #endif
 
-class Dsmr : public Component, public uart::UARTDevice {
+class Dsmr final : public Component, public uart::UARTDevice {
  public:
   Dsmr(uart::UARTComponent *uart, bool crc_check, size_t max_telegram_length, uint32_t request_interval,
        uint32_t receive_timeout, GPIOPin *request_pin, const char *decryption_key)
diff --git a/esphome/components/duty_cycle/duty_cycle_sensor.h b/esphome/components/duty_cycle/duty_cycle_sensor.h
index 58beee946a..564c47a2aa 100644
--- a/esphome/components/duty_cycle/duty_cycle_sensor.h
+++ b/esphome/components/duty_cycle/duty_cycle_sensor.h
@@ -16,7 +16,7 @@ struct DutyCycleSensorStore {
   static void gpio_intr(DutyCycleSensorStore *arg);
 };
 
-class DutyCycleSensor : public sensor::Sensor, public PollingComponent {
+class DutyCycleSensor final : public sensor::Sensor, public PollingComponent {
  public:
   void set_pin(InternalGPIOPin *pin) { pin_ = pin; }
 
diff --git a/esphome/components/duty_time/duty_time_sensor.h b/esphome/components/duty_time/duty_time_sensor.h
index 9b1e10ea8c..a9e91de0b1 100644
--- a/esphome/components/duty_time/duty_time_sensor.h
+++ b/esphome/components/duty_time/duty_time_sensor.h
@@ -12,7 +12,7 @@
 
 namespace esphome::duty_time_sensor {
 
-class DutyTimeSensor : public sensor::Sensor, public PollingComponent {
+class DutyTimeSensor final : public sensor::Sensor, public PollingComponent {
  public:
   void setup() override;
   void update() override;
@@ -61,7 +61,7 @@ template<typename... Ts> class ResetAction : public BaseAction<Ts...> {
   void play(const Ts &...x) override { this->parent_->reset(); }
 };
 
-template<typename... Ts> class RunningCondition : public Condition<Ts...>, public Parented<DutyTimeSensor> {
+template<typename... Ts> class RunningCondition final : public Condition<Ts...>, public Parented<DutyTimeSensor> {
  public:
   explicit RunningCondition(DutyTimeSensor *parent, bool state) : Parented(parent), state_(state) {}
 
diff --git a/esphome/components/e131/e131.h b/esphome/components/e131/e131.h
index 6574037efb..b0a8b4f83f 100644
--- a/esphome/components/e131/e131.h
+++ b/esphome/components/e131/e131.h
@@ -30,7 +30,7 @@ struct UniverseConsumer {
   uint16_t consumers;
 };
 
-class E131Component : public esphome::Component {
+class E131Component final : public esphome::Component {
  public:
   E131Component();
   ~E131Component();
diff --git a/esphome/components/ee895/ee895.h b/esphome/components/ee895/ee895.h
index ba8e594fea..1682e33146 100644
--- a/esphome/components/ee895/ee895.h
+++ b/esphome/components/ee895/ee895.h
@@ -7,7 +7,7 @@
 namespace esphome::ee895 {
 
 /// This class implements support for the ee895 of temperature i2c sensors.
-class EE895Component : public PollingComponent, public i2c::I2CDevice {
+class EE895Component final : public PollingComponent, public i2c::I2CDevice {
  public:
   void set_co2_sensor(sensor::Sensor *co2) { co2_sensor_ = co2; }
   void set_temperature_sensor(sensor::Sensor *temperature_sensor) { temperature_sensor_ = temperature_sensor; }
diff --git a/esphome/components/ektf2232/touchscreen/ektf2232.h b/esphome/components/ektf2232/touchscreen/ektf2232.h
index 45da74a2a5..a4b9cbd574 100644
--- a/esphome/components/ektf2232/touchscreen/ektf2232.h
+++ b/esphome/components/ektf2232/touchscreen/ektf2232.h
@@ -10,7 +10,7 @@ namespace esphome::ektf2232 {
 
 using namespace touchscreen;
 
-class EKTF2232Touchscreen : public Touchscreen, public i2c::I2CDevice {
+class EKTF2232Touchscreen final : public Touchscreen, public i2c::I2CDevice {
  public:
   void setup() override;
   void dump_config() override;
diff --git a/esphome/components/emc2101/emc2101.h b/esphome/components/emc2101/emc2101.h
index 1fe03a2630..b3ec0c5dc1 100644
--- a/esphome/components/emc2101/emc2101.h
+++ b/esphome/components/emc2101/emc2101.h
@@ -25,7 +25,7 @@ enum Emc2101DACConversionRate {
 /// This class includes support for the EMC2101 i2c fan controller.
 /// The device has an output (PWM or DAC) and several sensors and this
 /// class is for the EMC2101 configuration.
-class Emc2101Component : public Component, public i2c::I2CDevice {
+class Emc2101Component final : public Component, public i2c::I2CDevice {
  public:
   /** Sets the mode of the output.
    *
diff --git a/esphome/components/emc2101/output/emc2101_output.h b/esphome/components/emc2101/output/emc2101_output.h
index 95077f5524..9a7ab0659a 100644
--- a/esphome/components/emc2101/output/emc2101_output.h
+++ b/esphome/components/emc2101/output/emc2101_output.h
@@ -6,7 +6,7 @@
 namespace esphome::emc2101 {
 
 /// This class allows to control the EMC2101 output.
-class EMC2101Output : public output::FloatOutput {
+class EMC2101Output final : public output::FloatOutput {
  public:
   EMC2101Output(Emc2101Component *parent) : parent_(parent) {}
 
diff --git a/esphome/components/emc2101/sensor/emc2101_sensor.h b/esphome/components/emc2101/sensor/emc2101_sensor.h
index 2336ac2f15..943e468e7d 100644
--- a/esphome/components/emc2101/sensor/emc2101_sensor.h
+++ b/esphome/components/emc2101/sensor/emc2101_sensor.h
@@ -7,7 +7,7 @@
 namespace esphome::emc2101 {
 
 /// This class exposes the EMC2101 sensors.
-class EMC2101Sensor : public PollingComponent {
+class EMC2101Sensor final : public PollingComponent {
  public:
   EMC2101Sensor(Emc2101Component *parent) : parent_(parent) {}
   /** Used by ESPHome framework. */
diff --git a/esphome/components/emmeti/emmeti.h b/esphome/components/emmeti/emmeti.h
index 9dc78ce07c..2203bfdec7 100644
--- a/esphome/components/emmeti/emmeti.h
+++ b/esphome/components/emmeti/emmeti.h
@@ -60,7 +60,7 @@ struct EmmetiState {
   uint8_t checksum = 0;
 };
 
-class EmmetiClimate : public climate_ir::ClimateIR {
+class EmmetiClimate final : public climate_ir::ClimateIR {
  public:
   EmmetiClimate()
       : climate_ir::ClimateIR(EMMETI_TEMP_MIN, EMMETI_TEMP_MAX, 1.0f, true, true,
diff --git a/esphome/components/emontx/emontx.h b/esphome/components/emontx/emontx.h
index 67e7f5bffc..6db197a78c 100644
--- a/esphome/components/emontx/emontx.h
+++ b/esphome/components/emontx/emontx.h
@@ -26,7 +26,7 @@ static constexpr size_t MAX_LINE_LENGTH = 1024;
  * The EmonTx processes incoming data frames via UART,
  * extracts tags and values, and publishes them to registered sensors.
  */
-class EmonTx : public Component, public uart::UARTDevice {
+class EmonTx final : public Component, public uart::UARTDevice {
  public:
   EmonTx() = default;
 
@@ -59,7 +59,7 @@ class EmonTx : public Component, public uart::UARTDevice {
 };
 
 // Action to send command to emonTx
-template<typename... Ts> class EmonTxSendCommandAction : public Action<Ts...>, public Parented<EmonTx> {
+template<typename... Ts> class EmonTxSendCommandAction final : public Action<Ts...>, public Parented<EmonTx> {
  public:
   TEMPLATABLE_VALUE(std::string, command)
 
diff --git a/esphome/components/emontx/sensor/emontx_sensor.h b/esphome/components/emontx/sensor/emontx_sensor.h
index 9714acdf0d..88b396bbc4 100644
--- a/esphome/components/emontx/sensor/emontx_sensor.h
+++ b/esphome/components/emontx/sensor/emontx_sensor.h
@@ -5,7 +5,7 @@
 
 namespace esphome::emontx {
 
-class EmonTxSensor : public sensor::Sensor, public Component {
+class EmonTxSensor final : public sensor::Sensor, public Component {
  public:
   void dump_config() override;
 };
diff --git a/esphome/components/endstop/endstop_cover.h b/esphome/components/endstop/endstop_cover.h
index b910139bcd..5319c74d7b 100644
--- a/esphome/components/endstop/endstop_cover.h
+++ b/esphome/components/endstop/endstop_cover.h
@@ -7,7 +7,7 @@
 
 namespace esphome::endstop {
 
-class EndstopCover : public cover::Cover, public Component {
+class EndstopCover final : public cover::Cover, public Component {
  public:
   void setup() override;
   void loop() override;
diff --git a/esphome/components/ens160_i2c/ens160_i2c.h b/esphome/components/ens160_i2c/ens160_i2c.h
index 98318a7eca..d5a0d21c62 100644
--- a/esphome/components/ens160_i2c/ens160_i2c.h
+++ b/esphome/components/ens160_i2c/ens160_i2c.h
@@ -5,7 +5,7 @@
 
 namespace esphome::ens160_i2c {
 
-class ENS160I2CComponent : public esphome::ens160_base::ENS160Component, public i2c::I2CDevice {
+class ENS160I2CComponent final : public esphome::ens160_base::ENS160Component, public i2c::I2CDevice {
   void dump_config() override;
 
   bool read_byte(uint8_t a_register, uint8_t *data) override;
diff --git a/esphome/components/ens160_spi/ens160_spi.h b/esphome/components/ens160_spi/ens160_spi.h
index d4d3cf3ae9..821e89515f 100644
--- a/esphome/components/ens160_spi/ens160_spi.h
+++ b/esphome/components/ens160_spi/ens160_spi.h
@@ -5,9 +5,9 @@
 
 namespace esphome::ens160_spi {
 
-class ENS160SPIComponent : public esphome::ens160_base::ENS160Component,
-                           public spi::SPIDevice<spi::BIT_ORDER_MSB_FIRST, spi::CLOCK_POLARITY_LOW,
-                                                 spi::CLOCK_PHASE_LEADING, spi::DATA_RATE_200KHZ> {
+class ENS160SPIComponent final : public esphome::ens160_base::ENS160Component,
+                                 public spi::SPIDevice<spi::BIT_ORDER_MSB_FIRST, spi::CLOCK_POLARITY_LOW,
+                                                       spi::CLOCK_PHASE_LEADING, spi::DATA_RATE_200KHZ> {
   void setup() override;
   void dump_config() override;
 
diff --git a/esphome/components/ens210/ens210.h b/esphome/components/ens210/ens210.h
index f1520fc483..fca20133b8 100644
--- a/esphome/components/ens210/ens210.h
+++ b/esphome/components/ens210/ens210.h
@@ -7,7 +7,7 @@
 namespace esphome::ens210 {
 
 /// This class implements support for the ENS210 relative humidity and temperature i2c sensor.
-class ENS210Component : public PollingComponent, public i2c::I2CDevice {
+class ENS210Component final : public PollingComponent, public i2c::I2CDevice {
  public:
   void dump_config() override;
   void setup() override;
diff --git a/esphome/components/es7210/es7210.h b/esphome/components/es7210/es7210.h
index 914fbd633b..42c667b658 100644
--- a/esphome/components/es7210/es7210.h
+++ b/esphome/components/es7210/es7210.h
@@ -16,7 +16,7 @@ enum ES7210BitsPerSample : uint8_t {
   ES7210_BITS_PER_SAMPLE_32 = 32,
 };
 
-class ES7210 : public audio_adc::AudioAdc, public Component, public i2c::I2CDevice {
+class ES7210 final : public audio_adc::AudioAdc, public Component, public i2c::I2CDevice {
   /* Class for configuring an ES7210 ADC for microphone input.
    * Based on code from:
    * - https://github.com/espressif/esp-bsp/ (accessed 20241219)
diff --git a/esphome/components/es7243e/es7243e.h b/esphome/components/es7243e/es7243e.h
index 6386ea529a..47dc6122c9 100644
--- a/esphome/components/es7243e/es7243e.h
+++ b/esphome/components/es7243e/es7243e.h
@@ -6,7 +6,7 @@
 
 namespace esphome::es7243e {
 
-class ES7243E : public audio_adc::AudioAdc, public Component, public i2c::I2CDevice {
+class ES7243E final : public audio_adc::AudioAdc, public Component, public i2c::I2CDevice {
   /* Class for configuring an ES7243E ADC for microphone input.
    * Based on code from:
    * - https://github.com/espressif/esp-adf/ (accessed 20250116)
diff --git a/esphome/components/es8156/es8156.h b/esphome/components/es8156/es8156.h
index c3cec3dc14..d29e8d1685 100644
--- a/esphome/components/es8156/es8156.h
+++ b/esphome/components/es8156/es8156.h
@@ -6,7 +6,7 @@
 
 namespace esphome::es8156 {
 
-class ES8156 : public audio_dac::AudioDac, public Component, public i2c::I2CDevice {
+class ES8156 final : public audio_dac::AudioDac, public Component, public i2c::I2CDevice {
  public:
   /////////////////////////
   // Component overrides //
diff --git a/esphome/components/es8311/es8311.h b/esphome/components/es8311/es8311.h
index 1190bcb0aa..ecc4b1014d 100644
--- a/esphome/components/es8311/es8311.h
+++ b/esphome/components/es8311/es8311.h
@@ -42,7 +42,7 @@ struct ES8311Coefficient {
   uint8_t dac_osr;   // dac osr
 };
 
-class ES8311 : public audio_dac::AudioDac, public Component, public i2c::I2CDevice {
+class ES8311 final : public audio_dac::AudioDac, public Component, public i2c::I2CDevice {
  public:
   /////////////////////////
   // Component overrides //
diff --git a/esphome/components/es8388/es8388.h b/esphome/components/es8388/es8388.h
index 1f744e25b3..b01acb69c1 100644
--- a/esphome/components/es8388/es8388.h
+++ b/esphome/components/es8388/es8388.h
@@ -25,7 +25,7 @@ enum AdcInputMicLine : uint8_t {
   ADC_INPUT_MIC_DIFFERENCE,
 };
 
-class ES8388 : public audio_dac::AudioDac, public Component, public i2c::I2CDevice {
+class ES8388 final : public audio_dac::AudioDac, public Component, public i2c::I2CDevice {
 #ifdef USE_SELECT
   SUB_SELECT(dac_output)
   SUB_SELECT(adc_input_mic)
diff --git a/esphome/components/es8388/select/adc_input_mic_select.h b/esphome/components/es8388/select/adc_input_mic_select.h
index 29978f1623..2d4e8d72db 100644
--- a/esphome/components/es8388/select/adc_input_mic_select.h
+++ b/esphome/components/es8388/select/adc_input_mic_select.h
@@ -5,7 +5,7 @@
 
 namespace esphome::es8388 {
 
-class ADCInputMicSelect : public select::Select, public Parented<ES8388> {
+class ADCInputMicSelect final : public select::Select, public Parented<ES8388> {
  protected:
   void control(size_t index) override;
 };
diff --git a/esphome/components/es8388/select/dac_output_select.h b/esphome/components/es8388/select/dac_output_select.h
index 030f12406e..f63ee8d1ba 100644
--- a/esphome/components/es8388/select/dac_output_select.h
+++ b/esphome/components/es8388/select/dac_output_select.h
@@ -5,7 +5,7 @@
 
 namespace esphome::es8388 {
 
-class DacOutputSelect : public select::Select, public Parented<ES8388> {
+class DacOutputSelect final : public select::Select, public Parented<ES8388> {
  protected:
   void control(size_t index) override;
 };
diff --git a/esphome/components/esp32/gpio.h b/esphome/components/esp32/gpio.h
index a140eeef77..aeff5af51c 100644
--- a/esphome/components/esp32/gpio.h
+++ b/esphome/components/esp32/gpio.h
@@ -10,7 +10,7 @@ namespace esphome::esp32 {
 static_assert(GPIO_NUM_MAX <= 256, "gpio_num_t has too many values for uint8_t");
 static_assert(GPIO_DRIVE_CAP_MAX <= 4, "gpio_drive_cap_t has too many values for 2-bit field");
 
-class ESP32InternalGPIOPin : public InternalGPIOPin {
+class ESP32InternalGPIOPin final : public InternalGPIOPin {
  public:
   void set_pin(gpio_num_t pin) { this->pin_ = static_cast<uint8_t>(pin); }
   void set_inverted(bool inverted) { this->pin_flags_.inverted = inverted; }
diff --git a/esphome/components/esp32_ble/ble.h b/esphome/components/esp32_ble/ble.h
index de8c8c2343..c85ddfc983 100644
--- a/esphome/components/esp32_ble/ble.h
+++ b/esphome/components/esp32_ble/ble.h
@@ -87,7 +87,7 @@ enum BLEComponentState : uint8_t {
   BLE_COMPONENT_STATE_ACTIVE,
 };
 
-class ESP32BLE : public Component {
+class ESP32BLE final : public Component {
  public:
   void set_io_capability(IoCapability io_capability) { this->io_cap_ = (esp_ble_io_cap_t) io_capability; }
 
@@ -236,12 +236,12 @@ class ESP32BLE : public Component {
 // NOLINTNEXTLINE(cppcoreguidelines-avoid-non-const-global-variables)
 extern ESP32BLE *global_ble;
 
-template<typename... Ts> class BLEEnabledCondition : public Condition<Ts...> {
+template<typename... Ts> class BLEEnabledCondition final : public Condition<Ts...> {
  public:
   bool check(const Ts &...x) override { return global_ble != nullptr && global_ble->is_active(); }
 };
 
-template<typename... Ts> class BLEEnableAction : public Action<Ts...> {
+template<typename... Ts> class BLEEnableAction final : public Action<Ts...> {
  public:
   void play(const Ts &...x) override {
     if (global_ble != nullptr)
@@ -249,7 +249,7 @@ template<typename... Ts> class BLEEnableAction : public Action<Ts...> {
   }
 };
 
-template<typename... Ts> class BLEDisableAction : public Action<Ts...> {
+template<typename... Ts> class BLEDisableAction final : public Action<Ts...> {
  public:
   void play(const Ts &...x) override {
     if (global_ble != nullptr)
diff --git a/esphome/components/esp32_ble_beacon/esp32_ble_beacon.h b/esphome/components/esp32_ble_beacon/esp32_ble_beacon.h
index 8b3899a681..986778de57 100644
--- a/esphome/components/esp32_ble_beacon/esp32_ble_beacon.h
+++ b/esphome/components/esp32_ble_beacon/esp32_ble_beacon.h
@@ -34,7 +34,7 @@ using esp_ble_ibeacon_t = struct {
 
 using namespace esp32_ble;
 
-class ESP32BLEBeacon : public Component {
+class ESP32BLEBeacon final : public Component {
  public:
   explicit ESP32BLEBeacon(const std::array<uint8_t, 16> &uuid) : uuid_(uuid) {}