diff --git a/homeassistant/components/cover/__init__.py b/homeassistant/components/cover/__init__.py
index 1a21908860a..3e438fb4ca1 100644
--- a/homeassistant/components/cover/__init__.py
+++ b/homeassistant/components/cover/__init__.py
@@ -340,8 +340,12 @@ class CoverEntity(Entity, cached_properties=CACHED_PROPERTIES_WITH_ATTR_):
     @property
     def supported_features(self) -> CoverEntityFeature:
         """Flag supported features."""
-        if self._attr_supported_features is not None:
-            return self._attr_supported_features
+        if (features := self._attr_supported_features) is not None:
+            if type(features) is int:  # noqa: E721
+                new_features = CoverEntityFeature(features)
+                self._report_deprecated_supported_features_values(new_features)
+                return new_features
+            return features
 
         supported_features = (
             CoverEntityFeature.OPEN | CoverEntityFeature.CLOSE | CoverEntityFeature.STOP
diff --git a/tests/components/cover/test_init.py b/tests/components/cover/test_init.py
index 062440e6b39..1b08658d983 100644
--- a/tests/components/cover/test_init.py
+++ b/tests/components/cover/test_init.py
@@ -141,3 +141,20 @@ def test_deprecated_constants(
     import_and_test_deprecated_constant_enum(
         caplog, cover, enum, constant_prefix, "2025.1"
     )
+
+
+def test_deprecated_supported_features_ints(caplog: pytest.LogCaptureFixture) -> None:
+    """Test deprecated supported features ints."""
+
+    class MockCoverEntity(cover.CoverEntity):
+        _attr_supported_features = 1
+
+    entity = MockCoverEntity()
+    assert entity.supported_features is cover.CoverEntityFeature(1)
+    assert "MockCoverEntity" in caplog.text
+    assert "is using deprecated supported features values" in caplog.text
+    assert "Instead it should use" in caplog.text
+    assert "CoverEntityFeature.OPEN" in caplog.text
+    caplog.clear()
+    assert entity.supported_features is cover.CoverEntityFeature(1)
+    assert "is using deprecated supported features values" not in caplog.text