diff --git a/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/RoomController.java b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/RoomController.java
index 6a2ded4..2bfa440 100644
--- a/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/RoomController.java
+++ b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/RoomController.java
@@ -23,6 +23,12 @@ public class RoomController {
 
     @Autowired private DeviceRepository<Device> deviceRepository;
 
+    @Autowired private SwitchRepository switchRepository;
+
+    @Autowired private ButtonDimmerRepository buttonDimmerRepository;
+
+    @Autowired private KnobDimmerRepository knobDimmerRepository;
+
     @GetMapping
     public List<Room> findAll() {
         return toList(roomRepository.findAll());
@@ -81,6 +87,9 @@ public class RoomController {
 
     @DeleteMapping("/{id}")
     public void deleteById(@PathVariable("id") long id) {
+        switchRepository.deleteAllByRoomId(id);
+        knobDimmerRepository.deleteAllByRoomId(id);
+        buttonDimmerRepository.deleteAllByRoomId(id);
         roomRepository.deleteById(id);
     }
 
diff --git a/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/ButtonDimmerRepository.java b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/ButtonDimmerRepository.java
index 484977a..f39644a 100644
--- a/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/ButtonDimmerRepository.java
+++ b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/ButtonDimmerRepository.java
@@ -1,3 +1,9 @@
 package ch.usi.inf.sa4.sanmarinoes.smarthut.models;
 
-public interface ButtonDimmerRepository extends DeviceRepository<ButtonDimmer> {}
+import javax.transaction.Transactional;
+
+public interface ButtonDimmerRepository extends DeviceRepository<ButtonDimmer> {
+
+    @Transactional
+    void deleteAllByRoomId(long roomId);
+}
diff --git a/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/KnobDimmerRepository.java b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/KnobDimmerRepository.java
index 7d7fc16..2a4558e 100644
--- a/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/KnobDimmerRepository.java
+++ b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/KnobDimmerRepository.java
@@ -1,3 +1,9 @@
 package ch.usi.inf.sa4.sanmarinoes.smarthut.models;
 
-public interface KnobDimmerRepository extends DeviceRepository<KnobDimmer> {}
+import javax.transaction.Transactional;
+
+public interface KnobDimmerRepository extends DeviceRepository<KnobDimmer> {
+
+    @Transactional
+    void deleteAllByRoomId(long roomId);
+}
diff --git a/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/Switch.java b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/Switch.java
index ed6f38d..8a8057c 100644
--- a/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/Switch.java
+++ b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/Switch.java
@@ -54,7 +54,7 @@ public class Switch extends InputDevice {
     }
 
     @PreRemove
-    private void removeSwitchable() {
+    public void removeSwitchable() {
         for (Switchable s : getOutputs()) {
             s.setSwitchId(null);
         }
diff --git a/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/SwitchRepository.java b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/SwitchRepository.java
index f06f465..8650ebe 100644
--- a/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/SwitchRepository.java
+++ b/src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/SwitchRepository.java
@@ -1,3 +1,9 @@
 package ch.usi.inf.sa4.sanmarinoes.smarthut.models;
 
-public interface SwitchRepository extends DeviceRepository<Switch> {}
+import javax.transaction.Transactional;
+
+public interface SwitchRepository extends DeviceRepository<Switch> {
+
+    @Transactional
+    void deleteAllByRoomId(long roomId);
+}