diff --git a/backend/core/config.py b/backend/core/config.py
index 43f5a04..752b4be 100644
--- a/backend/core/config.py
+++ b/backend/core/config.py
@@ -22,6 +22,12 @@ class Settings(BaseSettings):
     
     lidarr_url: str = Field(default="http://lidarr:8686")
     lidarr_api_key: str = Field(default="")
+    lidarr_timeout: float = Field(
+        default=30.0,
+        ge=5.0,
+        le=600.0,
+        description="HTTP read/write timeout in seconds for Lidarr API calls.",
+    )
     
     jellyfin_url: str = Field(default="http://jellyfin:8096")
     
@@ -192,6 +198,7 @@ class Settings(BaseSettings):
         config_data = {
             "lidarr_url": self.lidarr_url,
             "lidarr_api_key": self.lidarr_api_key,
+            "lidarr_timeout": self.lidarr_timeout,
             "jellyfin_url": self.jellyfin_url,
             "contact_email": self.contact_email,
             "quality_profile_id": self.quality_profile_id,
@@ -221,6 +228,7 @@ class Settings(BaseSettings):
             config_data.update({
                 "lidarr_url": self.lidarr_url,
                 "lidarr_api_key": self.lidarr_api_key,
+                "lidarr_timeout": self.lidarr_timeout,
                 "jellyfin_url": self.jellyfin_url,
                 "contact_email": self.contact_email,
                 "quality_profile_id": self.quality_profile_id,
diff --git a/backend/repositories/lidarr/base.py b/backend/repositories/lidarr/base.py
index a037c49..f12f79f 100644
--- a/backend/repositories/lidarr/base.py
+++ b/backend/repositories/lidarr/base.py
@@ -49,7 +49,7 @@ class LidarrBase:
 
     @property
     def _base_url(self) -> str:
-        return self._settings.lidarr_url
+        return self._settings.lidarr_url.rstrip("/")
 
     def is_configured(self) -> bool:
         return bool(self._settings.lidarr_api_key)
@@ -78,7 +78,13 @@ class LidarrBase:
         if not self.is_configured():
             raise ExternalServiceError("Lidarr is not configured (no API key)")
 
-        url = f"{self._base_url}{endpoint}"
+        path = endpoint.lstrip("/")
+        url = f"{self._base_url}/{path}" if path else self._base_url
+
+        timeout = httpx.Timeout(
+            self._settings.lidarr_timeout,
+            connect=self._settings.http_connect_timeout,
+        )
 
         try:
             response = await self._client.request(
@@ -87,6 +93,7 @@ class LidarrBase:
                 headers=self._get_headers(),
                 params=params,
                 json=json_data,
+                timeout=timeout,
             )
 
             if method == "DELETE" and response.status_code in (200, 202, 204):