diff --git a/effects.h b/effects.h
--- a/effects.h
+++ b/effects.h
@@ -303,6 +303,7 @@
     void slotOpacityChanged(KWin::Toplevel *t, qreal oldOpacity);
     void slotClientModalityChanged();
     void slotGeometryShapeChanged(KWin::Toplevel *t, const QRect &old);
+    void slotFrameGeometryChanged(Toplevel *toplevel, const QRect &oldGeometry);
     void slotPaddingChanged(KWin::Toplevel *t, const QRect &old);
     void slotWindowDamaged(KWin::Toplevel *t, const QRect& r);
 
diff --git a/effects.cpp b/effects.cpp
--- a/effects.cpp
+++ b/effects.cpp
@@ -334,6 +334,7 @@
     );
     connect(c, &AbstractClient::modalChanged,         this, &EffectsHandlerImpl::slotClientModalityChanged);
     connect(c, &AbstractClient::geometryShapeChanged, this, &EffectsHandlerImpl::slotGeometryShapeChanged);
+    connect(c, &AbstractClient::frameGeometryChanged, this, &EffectsHandlerImpl::slotFrameGeometryChanged);
     connect(c, &AbstractClient::damaged,              this, &EffectsHandlerImpl::slotWindowDamaged);
     connect(c, &AbstractClient::unresponsiveChanged, this,
         [this, c](bool unresponsive) {
@@ -380,6 +381,7 @@
     connect(u, &Unmanaged::windowClosed,         this, &EffectsHandlerImpl::slotWindowClosed);
     connect(u, &Unmanaged::opacityChanged,       this, &EffectsHandlerImpl::slotOpacityChanged);
     connect(u, &Unmanaged::geometryShapeChanged, this, &EffectsHandlerImpl::slotGeometryShapeChanged);
+    connect(u, &Unmanaged::frameGeometryChanged, this, &EffectsHandlerImpl::slotFrameGeometryChanged);
     connect(u, &Unmanaged::paddingChanged,       this, &EffectsHandlerImpl::slotPaddingChanged);
     connect(u, &Unmanaged::damaged,              this, &EffectsHandlerImpl::slotWindowDamaged);
 }
@@ -637,6 +639,14 @@
     emit windowGeometryShapeChanged(t->effectWindow(), old);
 }
 
+void EffectsHandlerImpl::slotFrameGeometryChanged(Toplevel *toplevel, const QRect &oldGeometry)
+{
+    // effectWindow() might be nullptr during tear down of the client.
+    if (toplevel->effectWindow()) {
+        emit windowFrameGeometryChanged(toplevel->effectWindow(), oldGeometry);
+    }
+}
+
 void EffectsHandlerImpl::slotPaddingChanged(Toplevel* t, const QRect& old)
 {
     // during late cleanup effectWindow() may be already NULL
diff --git a/libkwineffects/kwineffects.h b/libkwineffects/kwineffects.h
--- a/libkwineffects/kwineffects.h
+++ b/libkwineffects/kwineffects.h
@@ -1519,6 +1519,13 @@
      * @since 4.7
      */
     void windowGeometryShapeChanged(KWin::EffectWindow *w, const QRect &old);
+    /**
+     * This signal is emitted when the frame geometry of a window changed.
+     * @param window The window whose geometry changed
+     * @param oldGeometry The previous geometry
+     * @since 5.19
+     */
+    void windowFrameGeometryChanged(KWin::EffectWindow *window, const QRect &oldGeometry);
     /**
      * Signal emitted when the padding of a window changed. (eg. shadow size)
      * @param w The window whose geometry changed