Autumn is a good time to give your windows a quick check while the weather is still mild. A little maintenance can help you spot dirt, worn seals or hardware problems before cold weather and wind make window care more difficult.
1. Clean the frames and drainage slots
Clean the frames with a soft cloth and warm water with a small amount of mild detergent. Avoid abrasive pads, solvents and harsh cleaning products, as they can damage the profile surface.
Open the sash and check the bottom of the frame. Drainage slots and channels should be clear of leaves, dust and other debris. They allow water that enters the window system to drain away.
2. Check the seals
Inspect the rubber seals around the sash. They should be clean and flexible, with no cracks or tears. Wipe them with a soft, damp cloth and allow them to dry. If the manufacturer’s instructions allow it, apply a care product designed for window seals.
Hardened or damaged seals may no longer sit tightly against the frame. If you notice damage or feel a persistent draught, contact a window specialist.
3. Test the handles and hardware
Open and close each sash a few times. The handle should turn without excessive force, and the sash should move smoothly without rubbing against the frame. Remove dust and dirt from accessible metal components. If the manufacturer recommends lubrication, use a suitable product and apply it only to the specified points.
Do not adjust the locking cams or other adjustment points at random. Different windows and hardware systems have different settings, and excessive compression can wear the seals more quickly.
4. Inspect the glazing and visible joints
Check the glazing unit, frame and visible joints for cracks, damage or signs of moisture. If moisture appears between the panes of a sealed glazing unit, rather than on the room-side surface, contact a specialist. It may indicate that the glazing unit has lost its seal.
5. Don’t assume every window has a “winter mode”
Not every window needs a winter adjustment. This depends on the hardware fitted to the window, and adjusting it without the manufacturer’s instructions may cause damage. If a sash does not close properly, rubs against the frame or lets in air, ask a specialist to check whether it needs adjustment or repair.
An autumn check cannot replace professional servicing if a window is already malfunctioning. However, clear drainage channels, cared-for seals and properly working hardware can help you get ready for the first frost.