diff --git a/esphome/components/ags10/sensor.py b/esphome/components/ags10/sensor.py
index 90fe067b32..e94504ff1a 100644
--- a/esphome/components/ags10/sensor.py
+++ b/esphome/components/ags10/sensor.py
@@ -35,7 +35,7 @@ CONFIG_SCHEMA = (
     cv.Schema(
         {
             cv.GenerateID(): cv.declare_id(AGS10Component),
-            cv.Optional(CONF_TVOC): sensor.sensor_schema(
+            cv.Required(CONF_TVOC): sensor.sensor_schema(
                 unit_of_measurement=UNIT_PARTS_PER_BILLION,
                 icon=ICON_RADIATOR,
                 accuracy_decimals=0,
diff --git a/esphome/components/rpi_dpi_rgb/display.py b/esphome/components/rpi_dpi_rgb/display.py
index e92eee7c0c..ee462686e4 100644
--- a/esphome/components/rpi_dpi_rgb/display.py
+++ b/esphome/components/rpi_dpi_rgb/display.py
@@ -102,7 +102,7 @@ CONFIG_SCHEMA = cv.All(
                         }
                     ),
                 ),
-                cv.Optional(CONF_COLOR_ORDER): cv.one_of(
+                cv.Optional(CONF_COLOR_ORDER, default="BGR"): cv.one_of(
                     *COLOR_ORDERS.keys(), upper=True
                 ),
                 cv.Optional(CONF_INVERT_COLORS, default=False): cv.boolean,
diff --git a/esphome/components/st7701s/display.py b/esphome/components/st7701s/display.py
index a8b12dfa28..7f6492812f 100644
--- a/esphome/components/st7701s/display.py
+++ b/esphome/components/st7701s/display.py
@@ -138,7 +138,7 @@ CONFIG_SCHEMA = cv.All(
                 cv.Optional(CONF_INIT_SEQUENCE, default=1): cv.ensure_list(
                     map_sequence
                 ),
-                cv.Optional(CONF_COLOR_ORDER): cv.one_of(
+                cv.Optional(CONF_COLOR_ORDER, default="BGR"): cv.one_of(
                     *COLOR_ORDERS.keys(), upper=True
                 ),
                 cv.Optional(CONF_PCLK_FREQUENCY, default="16MHz"): cv.All(