diff --git a/services/stt/stt_service.py b/services/stt/stt_service.py
index 9f2fd7e..55e57af 100644
--- a/services/stt/stt_service.py
+++ b/services/stt/stt_service.py
@@ -40,6 +40,8 @@ class STTService:
     @property
     def available(self) -> bool:
         settings = self._load_settings()
+        if settings.get("stt_enabled") is False:
+            return False
         provider = settings["stt_provider"]
         if provider == "disabled":
             return False
@@ -140,6 +142,8 @@ class STTService:
 
     def transcribe(self, audio_bytes: bytes) -> Optional[str]:
         settings = self._load_settings()
+        if settings.get("stt_enabled") is False:
+            return None
         provider = settings["stt_provider"]
         model = settings["stt_model"]
         language = settings.get("stt_language", "")
diff --git a/services/tts/tts_service.py b/services/tts/tts_service.py
index 8b8de88..a78c8a7 100644
--- a/services/tts/tts_service.py
+++ b/services/tts/tts_service.py
@@ -34,6 +34,7 @@ class TTSService:
         from src.settings import load_settings
         saved = load_settings()
         return {
+            "tts_enabled": saved.get("tts_enabled", True),
             "tts_provider": saved.get("tts_provider", "disabled"),
             "tts_model": saved.get("tts_model", "tts-1"),
             "tts_voice": saved.get("tts_voice", "alloy"),
@@ -43,6 +44,8 @@ class TTSService:
     @property
     def available(self) -> bool:
         settings = self._load_settings()
+        if settings.get("tts_enabled") is False:
+            return False
         provider = settings["tts_provider"]
         if provider == "disabled":
             return False
@@ -128,6 +131,8 @@ class TTSService:
 
     def synthesize(self, text: str, use_cache: bool = True) -> Optional[bytes]:
         settings = self._load_settings()
+        if settings.get("tts_enabled") is False:
+            return None
         provider = settings["tts_provider"]
         model = settings["tts_model"]
         voice = settings["tts_voice"]
diff --git a/tests/test_speech_service_toggles.py b/tests/test_speech_service_toggles.py
new file mode 100644
index 0000000..e853900
--- /dev/null
+++ b/tests/test_speech_service_toggles.py
@@ -0,0 +1,57 @@
+from services.stt.stt_service import STTService
+from services.tts.tts_service import TTSService
+
+
+def test_tts_disabled_toggle_blocks_synthesis(monkeypatch, tmp_path):
+    service = TTSService(cache_dir=str(tmp_path))
+    calls = {"endpoint": 0, "kokoro": 0}
+
+    monkeypatch.setattr(service, "_load_settings", lambda: {
+        "tts_enabled": False,
+        "tts_provider": "endpoint:voice-endpoint",
+        "tts_model": "tts-1",
+        "tts_voice": "alloy",
+        "tts_speed": "1",
+    })
+
+    def fake_endpoint(*args, **kwargs):
+        calls["endpoint"] += 1
+        return b"audio"
+
+    def fake_kokoro():
+        calls["kokoro"] += 1
+        return None
+
+    monkeypatch.setattr(service, "_synthesize_api", fake_endpoint)
+    monkeypatch.setattr(service, "_get_kokoro", fake_kokoro)
+
+    assert service.available is False
+    assert service.synthesize("hello") is None
+    assert calls == {"endpoint": 0, "kokoro": 0}
+
+
+def test_stt_disabled_toggle_blocks_transcription(monkeypatch):
+    service = STTService()
+    calls = {"endpoint": 0, "whisper": 0}
+
+    monkeypatch.setattr(service, "_load_settings", lambda: {
+        "stt_enabled": False,
+        "stt_provider": "endpoint:transcribe-endpoint",
+        "stt_model": "whisper-1",
+        "stt_language": "",
+    })
+
+    def fake_endpoint(*args, **kwargs):
+        calls["endpoint"] += 1
+        return "transcript"
+
+    def fake_whisper():
+        calls["whisper"] += 1
+        return None
+
+    monkeypatch.setattr(service, "_transcribe_api", fake_endpoint)
+    monkeypatch.setattr(service, "_get_whisper", fake_whisper)
+
+    assert service.available is False
+    assert service.transcribe(b"audio") is None
+    assert calls == {"endpoint": 0, "whisper": 0}