diff --git a/esphome/components/pmsa003i/pmsa003i.h b/esphome/components/pmsa003i/pmsa003i.h
index aebe80b711..908b073be1 100644
--- a/esphome/components/pmsa003i/pmsa003i.h
+++ b/esphome/components/pmsa003i/pmsa003i.h
@@ -26,7 +26,7 @@ struct PM25AQIData {
   uint16_t checksum;         ///< Packet checksum
 };
 
-class PMSA003IComponent : public PollingComponent, public i2c::I2CDevice {
+class PMSA003IComponent final : public PollingComponent, public i2c::I2CDevice {
  public:
   void setup() override;
   void dump_config() override;
diff --git a/esphome/components/pmsx003/pmsx003.h b/esphome/components/pmsx003/pmsx003.h
index d559f2dec0..c62960e7c3 100644
--- a/esphome/components/pmsx003/pmsx003.h
+++ b/esphome/components/pmsx003/pmsx003.h
@@ -29,7 +29,7 @@ enum class State : uint8_t {
   WAITING,
 };
 
-class PMSX003Component : public uart::UARTDevice, public Component {
+class PMSX003Component final : public uart::UARTDevice, public Component {
  public:
   PMSX003Component() = default;
   void setup() override;
diff --git a/esphome/components/pmwcs3/pmwcs3.h b/esphome/components/pmwcs3/pmwcs3.h
index d669147819..4ce4a5ce9c 100644
--- a/esphome/components/pmwcs3/pmwcs3.h
+++ b/esphome/components/pmwcs3/pmwcs3.h
@@ -9,7 +9,7 @@
 
 namespace esphome::pmwcs3 {
 
-class PMWCS3Component : public PollingComponent, public i2c::I2CDevice {
+class PMWCS3Component final : public PollingComponent, public i2c::I2CDevice {
  public:
   void update() override;
   void dump_config() override;
@@ -32,7 +32,7 @@ class PMWCS3Component : public PollingComponent, public i2c::I2CDevice {
   sensor::Sensor *vwc_sensor_{nullptr};
 };
 
-template<typename... Ts> class PMWCS3AirCalibrationAction : public Action<Ts...> {
+template<typename... Ts> class PMWCS3AirCalibrationAction final : public Action<Ts...> {
  public:
   PMWCS3AirCalibrationAction(PMWCS3Component *parent) : parent_(parent) {}
 
@@ -42,7 +42,7 @@ template<typename... Ts> class PMWCS3AirCalibrationAction : public Action<Ts...>
   PMWCS3Component *parent_;
 };
 
-template<typename... Ts> class PMWCS3WaterCalibrationAction : public Action<Ts...> {
+template<typename... Ts> class PMWCS3WaterCalibrationAction final : public Action<Ts...> {
  public:
   PMWCS3WaterCalibrationAction(PMWCS3Component *parent) : parent_(parent) {}
 
@@ -52,7 +52,7 @@ template<typename... Ts> class PMWCS3WaterCalibrationAction : public Action<Ts..
   PMWCS3Component *parent_;
 };
 
-template<typename... Ts> class PMWCS3NewI2cAddressAction : public Action<Ts...> {
+template<typename... Ts> class PMWCS3NewI2cAddressAction final : public Action<Ts...> {
  public:
   PMWCS3NewI2cAddressAction(PMWCS3Component *parent) : parent_(parent) {}
   TEMPLATABLE_VALUE(int, new_address)
diff --git a/esphome/components/pn532/pn532.h b/esphome/components/pn532/pn532.h
index a26f27ed54..629a697aa5 100644
--- a/esphome/components/pn532/pn532.h
+++ b/esphome/components/pn532/pn532.h
@@ -114,7 +114,7 @@ class PN532 : public PollingComponent {
   CallbackManager<void()> on_finished_write_callback_;
 };
 
-class PN532BinarySensor : public binary_sensor::BinarySensor {
+class PN532BinarySensor final : public binary_sensor::BinarySensor {
  public:
   void set_uid(const nfc::NfcTagUid &uid) { uid_ = uid; }
 
@@ -132,7 +132,7 @@ class PN532BinarySensor : public binary_sensor::BinarySensor {
   bool found_{false};
 };
 
-template<typename... Ts> class PN532IsWritingCondition : public Condition<Ts...>, public Parented<PN532> {
+template<typename... Ts> class PN532IsWritingCondition final : public Condition<Ts...>, public Parented<PN532> {
  public:
   bool check(const Ts &...x) override { return this->parent_->is_writing(); }
 };
diff --git a/esphome/components/pn532_i2c/pn532_i2c.h b/esphome/components/pn532_i2c/pn532_i2c.h
index b2a2ac2e18..6495f17599 100644
--- a/esphome/components/pn532_i2c/pn532_i2c.h
+++ b/esphome/components/pn532_i2c/pn532_i2c.h
@@ -8,7 +8,7 @@
 
 namespace esphome::pn532_i2c {
 
-class PN532I2C : public pn532::PN532, public i2c::I2CDevice {
+class PN532I2C final : public pn532::PN532, public i2c::I2CDevice {
  public:
   void dump_config() override;
 
diff --git a/esphome/components/pn532_spi/pn532_spi.h b/esphome/components/pn532_spi/pn532_spi.h
index 2bfd4accf7..f29950c423 100644
--- a/esphome/components/pn532_spi/pn532_spi.h
+++ b/esphome/components/pn532_spi/pn532_spi.h
@@ -8,9 +8,9 @@
 
 namespace esphome::pn532_spi {
 
-class PN532Spi : public pn532::PN532,
-                 public spi::SPIDevice<spi::BIT_ORDER_LSB_FIRST, spi::CLOCK_POLARITY_LOW, spi::CLOCK_PHASE_LEADING,
-                                       spi::DATA_RATE_1MHZ> {
+class PN532Spi final : public pn532::PN532,
+                       public spi::SPIDevice<spi::BIT_ORDER_LSB_FIRST, spi::CLOCK_POLARITY_LOW,
+                                             spi::CLOCK_PHASE_LEADING, spi::DATA_RATE_1MHZ> {
  public:
   void setup() override;
 
diff --git a/esphome/components/pn7150/automation.h b/esphome/components/pn7150/automation.h
index 0b2e5f5d24..c3f8d3e5d3 100644
--- a/esphome/components/pn7150/automation.h
+++ b/esphome/components/pn7150/automation.h
@@ -6,40 +6,40 @@
 
 namespace esphome::pn7150 {
 
-template<typename... Ts> class PN7150IsWritingCondition : public Condition<Ts...>, public Parented<PN7150> {
+template<typename... Ts> class PN7150IsWritingCondition final : public Condition<Ts...>, public Parented<PN7150> {
  public:
   bool check(const Ts &...x) override { return this->parent_->is_writing(); }
 };
 
-template<typename... Ts> class EmulationOffAction : public Action<Ts...>, public Parented<PN7150> {
+template<typename... Ts> class EmulationOffAction final : public Action<Ts...>, public Parented<PN7150> {
   void play(const Ts &...x) override { this->parent_->set_tag_emulation_off(); }
 };
 
-template<typename... Ts> class EmulationOnAction : public Action<Ts...>, public Parented<PN7150> {
+template<typename... Ts> class EmulationOnAction final : public Action<Ts...>, public Parented<PN7150> {
   void play(const Ts &...x) override { this->parent_->set_tag_emulation_on(); }
 };
 
-template<typename... Ts> class PollingOffAction : public Action<Ts...>, public Parented<PN7150> {
+template<typename... Ts> class PollingOffAction final : public Action<Ts...>, public Parented<PN7150> {
   void play(const Ts &...x) override { this->parent_->set_polling_off(); }
 };
 
-template<typename... Ts> class PollingOnAction : public Action<Ts...>, public Parented<PN7150> {
+template<typename... Ts> class PollingOnAction final : public Action<Ts...>, public Parented<PN7150> {
   void play(const Ts &...x) override { this->parent_->set_polling_on(); }
 };
 
-template<typename... Ts> class SetCleanModeAction : public Action<Ts...>, public Parented<PN7150> {
+template<typename... Ts> class SetCleanModeAction final : public Action<Ts...>, public Parented<PN7150> {
   void play(const Ts &...x) override { this->parent_->clean_mode(); }
 };
 
-template<typename... Ts> class SetFormatModeAction : public Action<Ts...>, public Parented<PN7150> {
+template<typename... Ts> class SetFormatModeAction final : public Action<Ts...>, public Parented<PN7150> {
   void play(const Ts &...x) override { this->parent_->format_mode(); }
 };
 
-template<typename... Ts> class SetReadModeAction : public Action<Ts...>, public Parented<PN7150> {
+template<typename... Ts> class SetReadModeAction final : public Action<Ts...>, public Parented<PN7150> {
   void play(const Ts &...x) override { this->parent_->read_mode(); }
 };
 
-template<typename... Ts> class SetEmulationMessageAction : public Action<Ts...>, public Parented<PN7150> {
+template<typename... Ts> class SetEmulationMessageAction final : public Action<Ts...>, public Parented<PN7150> {
   TEMPLATABLE_VALUE(std::string, message)
   TEMPLATABLE_VALUE(bool, include_android_app_record)
 
@@ -49,7 +49,7 @@ template<typename... Ts> class SetEmulationMessageAction : public Action<Ts...>,
   }
 };
 
-template<typename... Ts> class SetWriteMessageAction : public Action<Ts...>, public Parented<PN7150> {
+template<typename... Ts> class SetWriteMessageAction final : public Action<Ts...>, public Parented<PN7150> {
   TEMPLATABLE_VALUE(std::string, message)
   TEMPLATABLE_VALUE(bool, include_android_app_record)
 
@@ -59,7 +59,7 @@ template<typename... Ts> class SetWriteMessageAction : public Action<Ts...>, pub
   }
 };
 
-template<typename... Ts> class SetWriteModeAction : public Action<Ts...>, public Parented<PN7150> {
+template<typename... Ts> class SetWriteModeAction final : public Action<Ts...>, public Parented<PN7150> {
   void play(const Ts &...x) override { this->parent_->write_mode(); }
 };
 
diff --git a/esphome/components/pn7150_i2c/pn7150_i2c.h b/esphome/components/pn7150_i2c/pn7150_i2c.h
index 2ea8c8f75c..25b0f3b855 100644
--- a/esphome/components/pn7150_i2c/pn7150_i2c.h
+++ b/esphome/components/pn7150_i2c/pn7150_i2c.h
@@ -8,7 +8,7 @@
 
 namespace esphome::pn7150_i2c {
 
-class PN7150I2C : public pn7150::PN7150, public i2c::I2CDevice {
+class PN7150I2C final : public pn7150::PN7150, public i2c::I2CDevice {
  public:
   void dump_config() override;
 
diff --git a/esphome/components/pn7160/automation.h b/esphome/components/pn7160/automation.h
index 7300c4a8d6..9f03a5a3d6 100644
--- a/esphome/components/pn7160/automation.h
+++ b/esphome/components/pn7160/automation.h
@@ -6,40 +6,40 @@
 
 namespace esphome::pn7160 {
 
-template<typename... Ts> class PN7160IsWritingCondition : public Condition<Ts...>, public Parented<PN7160> {
+template<typename... Ts> class PN7160IsWritingCondition final : public Condition<Ts...>, public Parented<PN7160> {
  public:
   bool check(const Ts &...x) override { return this->parent_->is_writing(); }
 };
 
-template<typename... Ts> class EmulationOffAction : public Action<Ts...>, public Parented<PN7160> {
+template<typename... Ts> class EmulationOffAction final : public Action<Ts...>, public Parented<PN7160> {
   void play(const Ts &...x) override { this->parent_->set_tag_emulation_off(); }
 };
 
-template<typename... Ts> class EmulationOnAction : public Action<Ts...>, public Parented<PN7160> {
+template<typename... Ts> class EmulationOnAction final : public Action<Ts...>, public Parented<PN7160> {
   void play(const Ts &...x) override { this->parent_->set_tag_emulation_on(); }
 };
 
-template<typename... Ts> class PollingOffAction : public Action<Ts...>, public Parented<PN7160> {
+template<typename... Ts> class PollingOffAction final : public Action<Ts...>, public Parented<PN7160> {
   void play(const Ts &...x) override { this->parent_->set_polling_off(); }
 };
 
-template<typename... Ts> class PollingOnAction : public Action<Ts...>, public Parented<PN7160> {
+template<typename... Ts> class PollingOnAction final : public Action<Ts...>, public Parented<PN7160> {
   void play(const Ts &...x) override { this->parent_->set_polling_on(); }
 };
 
-template<typename... Ts> class SetCleanModeAction : public Action<Ts...>, public Parented<PN7160> {
+template<typename... Ts> class SetCleanModeAction final : public Action<Ts...>, public Parented<PN7160> {
   void play(const Ts &...x) override { this->parent_->clean_mode(); }
 };
 
-template<typename... Ts> class SetFormatModeAction : public Action<Ts...>, public Parented<PN7160> {
+template<typename... Ts> class SetFormatModeAction final : public Action<Ts...>, public Parented<PN7160> {
   void play(const Ts &...x) override { this->parent_->format_mode(); }
 };
 
-template<typename... Ts> class SetReadModeAction : public Action<Ts...>, public Parented<PN7160> {
+template<typename... Ts> class SetReadModeAction final : public Action<Ts...>, public Parented<PN7160> {
   void play(const Ts &...x) override { this->parent_->read_mode(); }
 };
 
-template<typename... Ts> class SetEmulationMessageAction : public Action<Ts...>, public Parented<PN7160> {
+template<typename... Ts> class SetEmulationMessageAction final : public Action<Ts...>, public Parented<PN7160> {
   TEMPLATABLE_VALUE(std::string, message)
   TEMPLATABLE_VALUE(bool, include_android_app_record)
 
@@ -49,7 +49,7 @@ template<typename... Ts> class SetEmulationMessageAction : public Action<Ts...>,
   }
 };
 
-template<typename... Ts> class SetWriteMessageAction : public Action<Ts...>, public Parented<PN7160> {
+template<typename... Ts> class SetWriteMessageAction final : public Action<Ts...>, public Parented<PN7160> {
   TEMPLATABLE_VALUE(std::string, message)
   TEMPLATABLE_VALUE(bool, include_android_app_record)
 
@@ -59,7 +59,7 @@ template<typename... Ts> class SetWriteMessageAction : public Action<Ts...>, pub
   }
 };
 
-template<typename... Ts> class SetWriteModeAction : public Action<Ts...>, public Parented<PN7160> {
+template<typename... Ts> class SetWriteModeAction final : public Action<Ts...>, public Parented<PN7160> {
   void play(const Ts &...x) override { this->parent_->write_mode(); }
 };
 
diff --git a/esphome/components/pn7160_i2c/pn7160_i2c.h b/esphome/components/pn7160_i2c/pn7160_i2c.h
index d29fd04fac..2a3b767765 100644
--- a/esphome/components/pn7160_i2c/pn7160_i2c.h
+++ b/esphome/components/pn7160_i2c/pn7160_i2c.h
@@ -8,7 +8,7 @@
 
 namespace esphome::pn7160_i2c {
 
-class PN7160I2C : public pn7160::PN7160, public i2c::I2CDevice {
+class PN7160I2C final : public pn7160::PN7160, public i2c::I2CDevice {
  public:
   void dump_config() override;
 
diff --git a/esphome/components/pn7160_spi/pn7160_spi.h b/esphome/components/pn7160_spi/pn7160_spi.h
index 2d9c1fda11..4f22e5edec 100644
--- a/esphome/components/pn7160_spi/pn7160_spi.h
+++ b/esphome/components/pn7160_spi/pn7160_spi.h
@@ -12,9 +12,9 @@ namespace esphome::pn7160_spi {
 static constexpr uint8_t TDD_SPI_READ = 0xFF;
 static constexpr uint8_t TDD_SPI_WRITE = 0x0A;
 
-class PN7160Spi : public pn7160::PN7160,
-                  public spi::SPIDevice<spi::BIT_ORDER_MSB_FIRST, spi::CLOCK_POLARITY_LOW, spi::CLOCK_PHASE_LEADING,
-                                        spi::DATA_RATE_4MHZ> {
+class PN7160Spi final : public pn7160::PN7160,
+                        public spi::SPIDevice<spi::BIT_ORDER_MSB_FIRST, spi::CLOCK_POLARITY_LOW,
+                                              spi::CLOCK_PHASE_LEADING, spi::DATA_RATE_4MHZ> {
  public:
   void setup() override;
 
diff --git a/esphome/components/power_supply/power_supply.h b/esphome/components/power_supply/power_supply.h
index e096f69e3b..eaf77af32e 100644
--- a/esphome/components/power_supply/power_supply.h
+++ b/esphome/components/power_supply/power_supply.h
@@ -7,7 +7,7 @@
 
 namespace esphome::power_supply {
 
-class PowerSupply : public Component {
+class PowerSupply final : public Component {
  public:
   void set_pin(GPIOPin *pin) { pin_ = pin; }
   void set_enable_time(uint32_t enable_time) { enable_time_ = enable_time; }
diff --git a/esphome/components/prometheus/prometheus_handler.h b/esphome/components/prometheus/prometheus_handler.h
index 008081f586..bc256c6885 100644
--- a/esphome/components/prometheus/prometheus_handler.h
+++ b/esphome/components/prometheus/prometheus_handler.h
@@ -14,7 +14,7 @@
 
 namespace esphome::prometheus {
 
-class PrometheusHandler : public AsyncWebHandler, public Component {
+class PrometheusHandler final : public AsyncWebHandler, public Component {
  public:
   PrometheusHandler(web_server_base::WebServerBase *base) : base_(base) {}
 
diff --git a/esphome/components/psram/psram.h b/esphome/components/psram/psram.h
index 22a49588b4..8549ef2959 100644
--- a/esphome/components/psram/psram.h
+++ b/esphome/components/psram/psram.h
@@ -6,7 +6,7 @@
 
 namespace esphome::psram {
 
-class PsramComponent : public Component {
+class PsramComponent final : public Component {
   void dump_config() override;
 };
 
diff --git a/esphome/components/pulse_counter/automation.h b/esphome/components/pulse_counter/automation.h
index 14264e87b3..380ef02304 100644
--- a/esphome/components/pulse_counter/automation.h
+++ b/esphome/components/pulse_counter/automation.h
@@ -6,7 +6,7 @@
 
 namespace esphome::pulse_counter {
 
-template<typename... Ts> class SetTotalPulsesAction : public Action<Ts...> {
+template<typename... Ts> class SetTotalPulsesAction final : public Action<Ts...> {
  public:
   SetTotalPulsesAction(PulseCounterSensor *pulse_counter) : pulse_counter_(pulse_counter) {}
 
diff --git a/esphome/components/pulse_counter/pulse_counter_sensor.h b/esphome/components/pulse_counter/pulse_counter_sensor.h
index 4f23ef1548..6704d3dc31 100644
--- a/esphome/components/pulse_counter/pulse_counter_sensor.h
+++ b/esphome/components/pulse_counter/pulse_counter_sensor.h
@@ -59,7 +59,7 @@ struct HwPulseCounterStorage : public PulseCounterStorageBase {
 
 PulseCounterStorageBase *get_storage(bool hw_pcnt = false);
 
-class PulseCounterSensor : public sensor::Sensor, public PollingComponent {
+class PulseCounterSensor final : public sensor::Sensor, public PollingComponent {
  public:
   explicit PulseCounterSensor(bool hw_pcnt = false) : storage_(*get_storage(hw_pcnt)) {}
 
diff --git a/esphome/components/pulse_meter/automation.h b/esphome/components/pulse_meter/automation.h
index 1def89c3d3..885922a22a 100644
--- a/esphome/components/pulse_meter/automation.h
+++ b/esphome/components/pulse_meter/automation.h
@@ -6,7 +6,7 @@
 
 namespace esphome::pulse_meter {
 
-template<typename... Ts> class SetTotalPulsesAction : public Action<Ts...> {
+template<typename... Ts> class SetTotalPulsesAction final : public Action<Ts...> {
  public:
   SetTotalPulsesAction(PulseMeterSensor *pulse_meter) : pulse_meter_(pulse_meter) {}
 
diff --git a/esphome/components/pulse_meter/pulse_meter_sensor.h b/esphome/components/pulse_meter/pulse_meter_sensor.h
index 243a64bf05..9fc99a440b 100644
--- a/esphome/components/pulse_meter/pulse_meter_sensor.h
+++ b/esphome/components/pulse_meter/pulse_meter_sensor.h
@@ -9,7 +9,7 @@
 
 namespace esphome::pulse_meter {
 
-class PulseMeterSensor : public sensor::Sensor, public Component {
+class PulseMeterSensor final : public sensor::Sensor, public Component {
  public:
   enum InternalFilterMode {
     FILTER_EDGE = 0,
diff --git a/esphome/components/pulse_width/pulse_width.h b/esphome/components/pulse_width/pulse_width.h
index f77766a961..7a79b80678 100644
--- a/esphome/components/pulse_width/pulse_width.h
+++ b/esphome/components/pulse_width/pulse_width.h
@@ -26,7 +26,7 @@ class PulseWidthSensorStore {
   volatile uint32_t last_rise_{0};
 };
 
-class PulseWidthSensor : public sensor::Sensor, public PollingComponent {
+class PulseWidthSensor final : public sensor::Sensor, public PollingComponent {
  public:
   void set_pin(InternalGPIOPin *pin) { pin_ = pin; }
   void setup() override { this->store_.setup(this->pin_); }
diff --git a/esphome/components/pvvx_mithermometer/display/pvvx_display.h b/esphome/components/pvvx_mithermometer/display/pvvx_display.h
index e1aebae7a5..d231111c58 100644
--- a/esphome/components/pvvx_mithermometer/display/pvvx_display.h
+++ b/esphome/components/pvvx_mithermometer/display/pvvx_display.h
@@ -31,7 +31,7 @@ enum UNIT {
 
 using pvvx_writer_t = display::DisplayWriter<PVVXDisplay>;
 
-class PVVXDisplay : public ble_client::BLEClientNode, public PollingComponent {
+class PVVXDisplay final : public ble_client::BLEClientNode, public PollingComponent {
  public:
   void set_writer(pvvx_writer_t &&writer) { this->writer_ = writer; }
   void set_auto_clear(bool auto_clear_enabled) { this->auto_clear_enabled_ = auto_clear_enabled; }
diff --git a/esphome/components/pvvx_mithermometer/pvvx_mithermometer.h b/esphome/components/pvvx_mithermometer/pvvx_mithermometer.h
index b5d6da21ef..382e41d210 100644
--- a/esphome/components/pvvx_mithermometer/pvvx_mithermometer.h
+++ b/esphome/components/pvvx_mithermometer/pvvx_mithermometer.h
@@ -18,7 +18,7 @@ struct ParseResult {
   int raw_offset;
 };
 
-class PVVXMiThermometer : public Component, public esp32_ble_tracker::ESPBTDeviceListener {
+class PVVXMiThermometer final : public Component, public esp32_ble_tracker::ESPBTDeviceListener {
  public:
   void set_address(uint64_t address) { address_ = address; };
 
diff --git a/esphome/components/pylontech/pylontech.h b/esphome/components/pylontech/pylontech.h
index 1d86803cc2..eae5e6e7bc 100644
--- a/esphome/components/pylontech/pylontech.h
+++ b/esphome/components/pylontech/pylontech.h
@@ -21,7 +21,7 @@ class PylontechListener {
   virtual void dump_config();
 };
 
-class PylontechComponent : public PollingComponent, public uart::UARTDevice {
+class PylontechComponent final : public PollingComponent, public uart::UARTDevice {
  public:
   PylontechComponent();
 
diff --git a/esphome/components/pylontech/sensor/pylontech_sensor.h b/esphome/components/pylontech/sensor/pylontech_sensor.h
index 36576e8332..1403d3445d 100644
--- a/esphome/components/pylontech/sensor/pylontech_sensor.h
+++ b/esphome/components/pylontech/sensor/pylontech_sensor.h
@@ -5,7 +5,7 @@
 
 namespace esphome::pylontech {
 
-class PylontechSensor : public PylontechListener {
+class PylontechSensor final : public PylontechListener {
  public:
   PylontechSensor(int8_t bat_num);
   void dump_config() override;
diff --git a/esphome/components/pylontech/text_sensor/pylontech_text_sensor.h b/esphome/components/pylontech/text_sensor/pylontech_text_sensor.h
index 30921b13f4..3ba4f1fd4e 100644
--- a/esphome/components/pylontech/text_sensor/pylontech_text_sensor.h
+++ b/esphome/components/pylontech/text_sensor/pylontech_text_sensor.h
@@ -5,7 +5,7 @@
 
 namespace esphome::pylontech {
 
-class PylontechTextSensor : public PylontechListener {
+class PylontechTextSensor final : public PylontechListener {
  public:
   PylontechTextSensor(int8_t bat_num);
   void dump_config() override;
diff --git a/esphome/components/pzem004t/pzem004t.h b/esphome/components/pzem004t/pzem004t.h
index 71fc1e70ad..42135f0fbd 100644
--- a/esphome/components/pzem004t/pzem004t.h
+++ b/esphome/components/pzem004t/pzem004t.h
@@ -6,7 +6,7 @@
 
 namespace esphome::pzem004t {
 
-class PZEM004T : public PollingComponent, public uart::UARTDevice {
+class PZEM004T final : public PollingComponent, public uart::UARTDevice {
  public:
   void set_voltage_sensor(sensor::Sensor *voltage_sensor) { voltage_sensor_ = voltage_sensor; }
   void set_current_sensor(sensor::Sensor *current_sensor) { current_sensor_ = current_sensor; }
diff --git a/esphome/components/pzemac/pzemac.h b/esphome/components/pzemac/pzemac.h
index 264604fedc..a25a8cb631 100644
--- a/esphome/components/pzemac/pzemac.h
+++ b/esphome/components/pzemac/pzemac.h
@@ -11,7 +11,7 @@ namespace esphome::pzemac {
 
 template<typename... Ts> class ResetEnergyAction;
 
-class PZEMAC : public PollingComponent, public modbus::ModbusDevice {
+class PZEMAC final : public PollingComponent, public modbus::ModbusDevice {
  public:
   void set_voltage_sensor(sensor::Sensor *voltage_sensor) { voltage_sensor_ = voltage_sensor; }
   void set_current_sensor(sensor::Sensor *current_sensor) { current_sensor_ = current_sensor; }
@@ -38,7 +38,7 @@ class PZEMAC : public PollingComponent, public modbus::ModbusDevice {
   void reset_energy_();
 };
 
-template<typename... Ts> class ResetEnergyAction : public Action<Ts...> {
+template<typename... Ts> class ResetEnergyAction final : public Action<Ts...> {
  public:
   ResetEnergyAction(PZEMAC *pzemac) : pzemac_(pzemac) {}
 
diff --git a/esphome/components/pzemdc/pzemdc.h b/esphome/components/pzemdc/pzemdc.h
index 6a7e840448..e398330cd3 100644
--- a/esphome/components/pzemdc/pzemdc.h
+++ b/esphome/components/pzemdc/pzemdc.h
@@ -9,7 +9,7 @@
 
 namespace esphome::pzemdc {
 
-class PZEMDC : public PollingComponent, public modbus::ModbusDevice {
+class PZEMDC final : public PollingComponent, public modbus::ModbusDevice {
  public:
   void set_voltage_sensor(sensor::Sensor *voltage_sensor) { voltage_sensor_ = voltage_sensor; }
   void set_current_sensor(sensor::Sensor *current_sensor) { current_sensor_ = current_sensor; }
@@ -31,7 +31,7 @@ class PZEMDC : public PollingComponent, public modbus::ModbusDevice {
   sensor::Sensor *energy_sensor_{nullptr};
 };
 
-template<typename... Ts> class ResetEnergyAction : public Action<Ts...> {
+template<typename... Ts> class ResetEnergyAction final : public Action<Ts...> {
  public:
   ResetEnergyAction(PZEMDC *pzemdc) : pzemdc_(pzemdc) {}
 
diff --git a/esphome/components/qmc5883l/qmc5883l.h b/esphome/components/qmc5883l/qmc5883l.h
index 6b8ffa0f40..faef423f8c 100644
--- a/esphome/components/qmc5883l/qmc5883l.h
+++ b/esphome/components/qmc5883l/qmc5883l.h
@@ -26,7 +26,7 @@ enum QMC5883LOversampling {
   QMC5883L_SAMPLING_64 = 0b11,
 };
 
-class QMC5883LComponent : public PollingComponent, public i2c::I2CDevice {
+class QMC5883LComponent final : public PollingComponent, public i2c::I2CDevice {
  public:
   void setup() override;
   void dump_config() override;
diff --git a/esphome/components/qmp6988/qmp6988.h b/esphome/components/qmp6988/qmp6988.h
index 41759478b8..ffea32eb18 100644
--- a/esphome/components/qmp6988/qmp6988.h
+++ b/esphome/components/qmp6988/qmp6988.h
@@ -67,7 +67,7 @@ using qmp6988_data_t = struct Qmp6988Data {
   qmp6988_ik_data_t ik;
 };
 
-class QMP6988Component : public PollingComponent, public i2c::I2CDevice {
+class QMP6988Component final : public PollingComponent, public i2c::I2CDevice {
  public:
   void set_temperature_sensor(sensor::Sensor *temperature_sensor) { this->temperature_sensor_ = temperature_sensor; }
   void set_pressure_sensor(sensor::Sensor *pressure_sensor) { this->pressure_sensor_ = pressure_sensor; }
diff --git a/esphome/components/qr_code/qr_code.h b/esphome/components/qr_code/qr_code.h
index ab4c587b6d..f8ca1660f6 100644
--- a/esphome/components/qr_code/qr_code.h
+++ b/esphome/components/qr_code/qr_code.h
@@ -13,7 +13,7 @@ class Display;
 }  // namespace display
 
 namespace qr_code {
-class QrCode : public Component {
+class QrCode final : public Component {
  public:
   void draw(display::Display *buff, uint16_t x_offset, uint16_t y_offset, Color color, int scale);
 
diff --git a/esphome/components/qspi_dbi/qspi_dbi.h b/esphome/components/qspi_dbi/qspi_dbi.h
index fa77cc5f76..8a1bf0d4c2 100644
--- a/esphome/components/qspi_dbi/qspi_dbi.h
+++ b/esphome/components/qspi_dbi/qspi_dbi.h
@@ -53,9 +53,9 @@ enum Model {
   RM67162,
 };
 
-class QspiDbi : public display::DisplayBuffer,
-                public spi::SPIDevice<spi::BIT_ORDER_MSB_FIRST, spi::CLOCK_POLARITY_LOW, spi::CLOCK_PHASE_LEADING,
-                                      spi::DATA_RATE_1MHZ> {
+class QspiDbi final : public display::DisplayBuffer,
+                      public spi::SPIDevice<spi::BIT_ORDER_MSB_FIRST, spi::CLOCK_POLARITY_LOW, spi::CLOCK_PHASE_LEADING,
+                                            spi::DATA_RATE_1MHZ> {
  public:
   void set_model(const char *model) { this->model_ = model; }
   void update() override;
diff --git a/esphome/components/qwiic_pir/qwiic_pir.h b/esphome/components/qwiic_pir/qwiic_pir.h
index 339632a508..8d3b8fb321 100644
--- a/esphome/components/qwiic_pir/qwiic_pir.h
+++ b/esphome/components/qwiic_pir/qwiic_pir.h
@@ -29,7 +29,7 @@ enum DebounceMode {
 
 static const uint8_t QWIIC_PIR_DEVICE_ID = 0x72;
 
-class QwiicPIRComponent : public Component, public i2c::I2CDevice, public binary_sensor::BinarySensor {
+class QwiicPIRComponent final : public Component, public i2c::I2CDevice, public binary_sensor::BinarySensor {
  public:
   void setup() override;
   void loop() override;
diff --git a/esphome/components/radon_eye_ble/radon_eye_listener.h b/esphome/components/radon_eye_ble/radon_eye_listener.h
index ceca736e78..30e3ccc1ea 100644
--- a/esphome/components/radon_eye_ble/radon_eye_listener.h
+++ b/esphome/components/radon_eye_ble/radon_eye_listener.h
@@ -7,7 +7,7 @@
 
 namespace esphome::radon_eye_ble {
 
-class RadonEyeListener : public esp32_ble_tracker::ESPBTDeviceListener {
+class RadonEyeListener final : public esp32_ble_tracker::ESPBTDeviceListener {
  public:
   bool parse_device(const esp32_ble_tracker::ESPBTDevice &device) override;
 };
diff --git a/esphome/components/radon_eye_rd200/radon_eye_rd200.h b/esphome/components/radon_eye_rd200/radon_eye_rd200.h
index 48e075c2d6..401402a137 100644
--- a/esphome/components/radon_eye_rd200/radon_eye_rd200.h
+++ b/esphome/components/radon_eye_rd200/radon_eye_rd200.h
@@ -13,7 +13,7 @@
 
 namespace esphome::radon_eye_rd200 {
 
-class RadonEyeRD200 : public PollingComponent, public ble_client::BLEClientNode {
+class RadonEyeRD200 final : public PollingComponent, public ble_client::BLEClientNode {
  public:
   RadonEyeRD200();
 
diff --git a/esphome/components/rc522/rc522.h b/esphome/components/rc522/rc522.h
index 45473e04b0..fd3c819696 100644
--- a/esphome/components/rc522/rc522.h
+++ b/esphome/components/rc522/rc522.h
@@ -251,7 +251,7 @@ class RC522 : public PollingComponent {
   } error_code_{NONE};
 };
 
-class RC522BinarySensor : public binary_sensor::BinarySensor {
+class RC522BinarySensor final : public binary_sensor::BinarySensor {
  public:
   void set_uid(const std::vector<uint8_t> &uid) { uid_ = uid; }
 
@@ -269,7 +269,7 @@ class RC522BinarySensor : public binary_sensor::BinarySensor {
   bool found_{false};
 };
 
-class RC522Trigger : public Trigger<std::string> {
+class RC522Trigger final : public Trigger<std::string> {
  public:
   void process(std::vector<uint8_t> &data);
 };