diff --git a/esphome/helpers.py b/esphome/helpers.py
index 7aa1a9a88c..b3102ca277 100644
--- a/esphome/helpers.py
+++ b/esphome/helpers.py
@@ -31,6 +31,13 @@ SockAddr = IPv4SockAddr | IPv6SockAddr
 
 _LOGGER = logging.getLogger(__name__)
 
+# cv.boolean's closed spelling tables, shared with the env-knob parsing below
+TRUTHY_BOOL_STRINGS = frozenset({"true", "yes", "on", "enable"})
+FALSY_BOOL_STRINGS = frozenset({"false", "no", "off", "disable"})
+# cv.boolean's spelling tables plus the 1/0 env convention
+TRUTHY_ENV_STRINGS = TRUTHY_BOOL_STRINGS | {"1"}
+FALSY_ENV_STRINGS = FALSY_BOOL_STRINGS | {"0"}
+
 IS_MACOS = platform.system() == "Darwin"
 IS_WINDOWS = platform.system() == "Windows"
 IS_LINUX = platform.system() == "Linux"
@@ -395,12 +402,14 @@ def sort_ip_addresses(address_list: list[str]) -> list[str]:
 
 
 def get_bool_env(var, default=False):
+    """Read a boolean env var: the ``cv.boolean`` spellings plus ``1``/``0``;
+    anything else falls through to ``bool(value)``."""
     value = os.getenv(var, default)
     if isinstance(value, str):
         value = value.lower()
-        if value in ["1", "true"]:
+        if value in TRUTHY_ENV_STRINGS:
             return True
-        if value in ["0", "false"]:
+        if value in FALSY_ENV_STRINGS:
             return False
     return bool(value)
 
diff --git a/tests/unit_tests/test_helpers.py b/tests/unit_tests/test_helpers.py
index eaa7d5a8dc..3160469063 100644
--- a/tests/unit_tests/test_helpers.py
+++ b/tests/unit_tests/test_helpers.py
@@ -171,6 +171,13 @@ def test_is_ip_address__valid(value):
         ("FOO", "fAlSe", True, False),
         ("FOO", "Yes", False, True),
         ("FOO", "123", False, True),
+        # cv.boolean's spellings; falsy rows use default=True on purpose
+        ("FOO", "on", False, True),
+        ("FOO", "enable", False, True),
+        ("FOO", "no", True, False),
+        ("FOO", "off", True, False),
+        ("FOO", "OFF", True, False),
+        ("FOO", "Disable", True, False),
     ),
 )
 def test_get_bool_env(monkeypatch, var, value, default, expected):