diff --git a/aioesphomeapi/client.py b/aioesphomeapi/client.py
index df08de0..8c54c27 100644
--- a/aioesphomeapi/client.py
+++ b/aioesphomeapi/client.py
@@ -910,20 +910,12 @@ class APIClient:
         handle: int,
         timeout: float = DEFAULT_BLE_TIMEOUT,
     ) -> bytearray:
-        req = BluetoothGATTReadRequest()
-        req.address = address
-        req.handle = handle
-
-        resp = await self._send_bluetooth_message_await_response(
+        return await self._bluetooth_gatt_read(
+            BluetoothGATTReadRequest(),
             address,
             handle,
-            req,
-            BluetoothGATTReadResponse,
-            timeout=timeout,
+            timeout,
         )
-        if TYPE_CHECKING:
-            assert isinstance(resp, BluetoothGATTReadResponse)
-        return bytearray(resp.data)
 
     async def bluetooth_gatt_write(
         self,
@@ -959,7 +951,21 @@ class APIClient:
         timeout: float = DEFAULT_BLE_TIMEOUT,
     ) -> bytearray:
         """Read a GATT descriptor."""
-        req = BluetoothGATTReadDescriptorRequest()
+        return await self._bluetooth_gatt_read(
+            BluetoothGATTReadDescriptorRequest(),
+            address,
+            handle,
+            timeout,
+        )
+
+    async def _bluetooth_gatt_read(
+        self,
+        req: BluetoothGATTReadDescriptorRequest | BluetoothGATTReadRequest,
+        address: int,
+        handle: int,
+        timeout: float,
+    ) -> bytearray:
+        """Perform a GATT read."""
         req.address = address
         req.handle = handle
         resp = await self._send_bluetooth_message_await_response(
diff --git a/tests/test_client.py b/tests/test_client.py
index 2ee8b08..7e5840a 100644
--- a/tests/test_client.py
+++ b/tests/test_client.py
@@ -15,6 +15,8 @@ from aioesphomeapi.api_pb2 import (
     BluetoothDeviceConnectionResponse,
     BluetoothDevicePairingResponse,
     BluetoothDeviceUnpairingResponse,
+    BluetoothGATTReadResponse,
+    BluetoothGATTWriteResponse,
     ButtonCommandRequest,
     CameraImageRequest,
     CameraImageResponse,
@@ -39,7 +41,7 @@ from aioesphomeapi.api_pb2 import (
 )
 from aioesphomeapi.client import APIClient
 from aioesphomeapi.connection import APIConnection
-from aioesphomeapi.core import APIConnectionError
+from aioesphomeapi.core import APIConnectionError, TimeoutAPIError
 from aioesphomeapi.model import (
     AlarmControlPanelCommand,
     APIVersion,
@@ -870,3 +872,160 @@ async def test_device_info(
     await disconnect_task
     with pytest.raises(APIConnectionError, match="CLOSED"):
         await client.device_info()
+
+
+@pytest.mark.asyncio
+async def test_bluetooth_gatt_read(
+    api_client: tuple[
+        APIClient, APIConnection, asyncio.Transport, APIPlaintextFrameHelper
+    ],
+) -> None:
+    """Test bluetooth_gatt_read."""
+    client, connection, transport, protocol = api_client
+    read_task = asyncio.create_task(client.bluetooth_gatt_read(1234, 1234))
+    await asyncio.sleep(0)
+
+    other_response: message.Message = BluetoothGATTReadResponse(
+        address=1234, handle=4567, data=b"4567"
+    )
+    protocol.data_received(generate_plaintext_packet(other_response))
+
+    response: message.Message = BluetoothGATTReadResponse(
+        address=1234, handle=1234, data=b"1234"
+    )
+    protocol.data_received(generate_plaintext_packet(response))
+    assert await read_task == b"1234"
+
+
+@pytest.mark.asyncio
+async def test_bluetooth_gatt_read_descriptor(
+    api_client: tuple[
+        APIClient, APIConnection, asyncio.Transport, APIPlaintextFrameHelper
+    ],
+) -> None:
+    """Test bluetooth_gatt_read_descriptor."""
+    client, connection, transport, protocol = api_client
+    read_task = asyncio.create_task(client.bluetooth_gatt_read_descriptor(1234, 1234))
+    await asyncio.sleep(0)
+
+    other_response: message.Message = BluetoothGATTReadResponse(
+        address=1234, handle=4567, data=b"4567"
+    )
+    protocol.data_received(generate_plaintext_packet(other_response))
+
+    response: message.Message = BluetoothGATTReadResponse(
+        address=1234, handle=1234, data=b"1234"
+    )
+    protocol.data_received(generate_plaintext_packet(response))
+    assert await read_task == b"1234"
+
+
+@pytest.mark.asyncio
+async def test_bluetooth_gatt_write(
+    api_client: tuple[
+        APIClient, APIConnection, asyncio.Transport, APIPlaintextFrameHelper
+    ],
+) -> None:
+    """Test bluetooth_gatt_write."""
+    client, connection, transport, protocol = api_client
+    write_task = asyncio.create_task(
+        client.bluetooth_gatt_write(1234, 1234, b"1234", True)
+    )
+    await asyncio.sleep(0)
+
+    other_response: message.Message = BluetoothGATTWriteResponse(
+        address=1234, handle=4567
+    )
+    protocol.data_received(generate_plaintext_packet(other_response))
+
+    response: message.Message = BluetoothGATTWriteResponse(address=1234, handle=1234)
+    protocol.data_received(generate_plaintext_packet(response))
+    await write_task
+
+
+@pytest.mark.asyncio
+async def test_bluetooth_gatt_write_without_response(
+    api_client: tuple[
+        APIClient, APIConnection, asyncio.Transport, APIPlaintextFrameHelper
+    ],
+) -> None:
+    """Test bluetooth_gatt_write without response."""
+    client, connection, transport, protocol = api_client
+    transport.reset_mock()
+    write_task = asyncio.create_task(
+        client.bluetooth_gatt_write(1234, 1234, b"1234", False)
+    )
+    await asyncio.sleep(0)
+    await write_task
+    assert transport.mock_calls[0][1][0] == b'\x00\x0cK\x08\xd2\t\x10\xd2\t"\x041234'
+
+    with pytest.raises(TimeoutAPIError, match="BluetoothGATTWriteResponse"):
+        await client.bluetooth_gatt_write(1234, 1234, b"1234", True, timeout=0)
+
+
+@pytest.mark.asyncio
+async def test_bluetooth_gatt_write_descriptor(
+    api_client: tuple[
+        APIClient, APIConnection, asyncio.Transport, APIPlaintextFrameHelper
+    ],
+) -> None:
+    """Test bluetooth_gatt_write_descriptor."""
+    client, connection, transport, protocol = api_client
+    write_task = asyncio.create_task(
+        client.bluetooth_gatt_write_descriptor(1234, 1234, b"1234", True)
+    )
+    await asyncio.sleep(0)
+
+    other_response: message.Message = BluetoothGATTWriteResponse(
+        address=1234, handle=4567
+    )
+    protocol.data_received(generate_plaintext_packet(other_response))
+
+    response: message.Message = BluetoothGATTWriteResponse(address=1234, handle=1234)
+    protocol.data_received(generate_plaintext_packet(response))
+    await write_task
+
+
+@pytest.mark.asyncio
+async def test_bluetooth_gatt_write_descriptor_without_response(
+    api_client: tuple[
+        APIClient, APIConnection, asyncio.Transport, APIPlaintextFrameHelper
+    ],
+) -> None:
+    """Test bluetooth_gatt_write_descriptor without response."""
+    client, connection, transport, protocol = api_client
+    transport.reset_mock()
+    write_task = asyncio.create_task(
+        client.bluetooth_gatt_write_descriptor(
+            1234, 1234, b"1234", wait_for_response=False
+        )
+    )
+    await asyncio.sleep(0)
+    await write_task
+    assert transport.mock_calls[0][1][0] == b"\x00\x0cM\x08\xd2\t\x10\xd2\t\x1a\x041234"
+
+    with pytest.raises(TimeoutAPIError, match="BluetoothGATTWriteResponse"):
+        await client.bluetooth_gatt_write_descriptor(1234, 1234, b"1234", timeout=0)
+
+
+@pytest.mark.asyncio
+async def test_bluetooth_gatt_read_descriptor(
+    api_client: tuple[
+        APIClient, APIConnection, asyncio.Transport, APIPlaintextFrameHelper
+    ],
+) -> None:
+    """Test bluetooth_gatt_read_descriptor."""
+    client, connection, transport, protocol = api_client
+    read_task = asyncio.create_task(client.bluetooth_gatt_read_descriptor(1234, 1234))
+    await asyncio.sleep(0)
+
+    other_response: message.Message = BluetoothGATTReadResponse(
+        address=1234, handle=4567, data=b"4567"
+    )
+    protocol.data_received(generate_plaintext_packet(other_response))
+
+    response: message.Message = BluetoothGATTReadResponse(
+        address=1234, handle=1234, data=b"1234"
+    )
+    protocol.data_received(generate_plaintext_packet(response))
+    assert await read_task == b"1234"