diff --git a/homeassistant/components/water_heater/__init__.py b/homeassistant/components/water_heater/__init__.py
index 4bfe1ce4481..dbd697f2367 100644
--- a/homeassistant/components/water_heater/__init__.py
+++ b/homeassistant/components/water_heater/__init__.py
@@ -25,12 +25,6 @@ from homeassistant.const import (
 from homeassistant.core import HomeAssistant, ServiceCall
 from homeassistant.exceptions import ServiceValidationError
 from homeassistant.helpers import config_validation as cv
-from homeassistant.helpers.deprecation import (
-    DeprecatedConstantEnum,
-    all_with_deprecated_constants,
-    check_if_deprecated_constant,
-    dir_with_deprecated_constants,
-)
 from homeassistant.helpers.entity import Entity, EntityDescription
 from homeassistant.helpers.entity_component import EntityComponent
 from homeassistant.helpers.temperature import display_temp as show_temp
@@ -70,18 +64,6 @@ class WaterHeaterEntityFeature(IntFlag):
     ON_OFF = 8
 
 
-# These SUPPORT_* constants are deprecated as of Home Assistant 2022.5.
-# Please use the WaterHeaterEntityFeature enum instead.
-_DEPRECATED_SUPPORT_TARGET_TEMPERATURE = DeprecatedConstantEnum(
-    WaterHeaterEntityFeature.TARGET_TEMPERATURE, "2025.1"
-)
-_DEPRECATED_SUPPORT_OPERATION_MODE = DeprecatedConstantEnum(
-    WaterHeaterEntityFeature.OPERATION_MODE, "2025.1"
-)
-_DEPRECATED_SUPPORT_AWAY_MODE = DeprecatedConstantEnum(
-    WaterHeaterEntityFeature.AWAY_MODE, "2025.1"
-)
-
 ATTR_MAX_TEMP = "max_temp"
 ATTR_MIN_TEMP = "min_temp"
 ATTR_AWAY_MODE = "away_mode"
@@ -437,11 +419,3 @@ async def async_service_temperature_set(
             kwargs[value] = temp
 
     await entity.async_set_temperature(**kwargs)
-
-
-# These can be removed if no deprecated constant are in this module anymore
-__getattr__ = ft.partial(check_if_deprecated_constant, module_globals=globals())
-__dir__ = ft.partial(
-    dir_with_deprecated_constants, module_globals_keys=[*globals().keys()]
-)
-__all__ = all_with_deprecated_constants(globals())
diff --git a/tests/components/water_heater/test_init.py b/tests/components/water_heater/test_init.py
index 4e0f860366c..0c5651058ed 100644
--- a/tests/components/water_heater/test_init.py
+++ b/tests/components/water_heater/test_init.py
@@ -8,7 +8,6 @@ from unittest.mock import AsyncMock, MagicMock
 import pytest
 import voluptuous as vol
 
-from homeassistant.components import water_heater
 from homeassistant.components.water_heater import (
     ATTR_OPERATION_LIST,
     ATTR_OPERATION_MODE,
@@ -30,8 +29,6 @@ from tests.common import (
     MockModule,
     MockPlatform,
     async_mock_service,
-    help_test_all,
-    import_and_test_deprecated_constant_enum,
     mock_integration,
     mock_platform,
 )
@@ -211,29 +208,6 @@ async def test_operation_mode_validation(
     water_heater_entity.set_operation_mode.assert_has_calls([mock.call("eco")])
 
 
-def test_all() -> None:
-    """Test module.__all__ is correctly set."""
-    help_test_all(water_heater)
-
-
-@pytest.mark.parametrize(
-    ("enum"),
-    [
-        WaterHeaterEntityFeature.TARGET_TEMPERATURE,
-        WaterHeaterEntityFeature.OPERATION_MODE,
-        WaterHeaterEntityFeature.AWAY_MODE,
-    ],
-)
-def test_deprecated_constants(
-    caplog: pytest.LogCaptureFixture,
-    enum: WaterHeaterEntityFeature,
-) -> None:
-    """Test deprecated constants."""
-    import_and_test_deprecated_constant_enum(
-        caplog, water_heater, enum, "SUPPORT_", "2025.1"
-    )
-
-
 def test_deprecated_supported_features_ints(
     hass: HomeAssistant, caplog: pytest.LogCaptureFixture
 ) -> None: