September is here which means the days grow shorter, the morning air turns crisp, and thoughts inevitably drift toward turning the central heating back on. Before you touch the thermostat, there is a crucial area of your home that deserves a quick inspection: your windows and doors.
Over the summer, frames can expand in the heat and rubber seals quietly degrade. By September, these minor issues turn into invisible heat leaks. The good news? You don’t need to spend thousands on full window replacements to keep your home warm when the colder months hit.
We’ve spent over 20 years helping homeowners across Witney, Oxford, and the broader Oxfordshire area keep their homes energy-efficient and the warmth in. Here is our straightforward 4-step window check to help you catch small repairs before your heating bills spike.
1. The “Paper Test” for Worn Rubber Gaskets
Rubber seals (gaskets) line the perimeter of your window frames to create an airtight seal when closed. Over time, UV exposure dries out the rubber, causing it to shrink, crack, or flatten out.
How to test it: Open your window, place a single sheet of paper across the frame, and close/latch the window on top of it. Try to pull the paper out.
- If it slides out easily without tearing, your seal has lost its compression.
- If you feel strong resistance, the seal is doing its job.
The Fix: Replacing degraded rubber gaskets across your property is a fast, low-cost repair that instantly stops cold autumn draughts and stops warm air from whistling straight out of the room.
2. Check for “Blown” Double Glazing (Misted Glass)
Take a look through your window panes on a bright morning. Do you see condensation, fogging, or watermark streaks trapped between the two panes of glass?
This is known as a “blown” or failed double-glazed unit. It means the airtight perimeter seal holding the glass unit together has broken, allowing the insulating gas (usually argon) to escape and moisture-laden air to take its place.
Common Myth: A blown sealed unit does not mean you have to replace the entire window frame.
The Fix: We can leave your existing uPVC, timber, or aluminium frames completely untouched and simply swap out the failed glass unit. Upgrading old, failed glass to modern units significantly increases your room’s thermal retention for a fraction of the cost of a brand-new window installation.
3. Realign Dropped Windows and Worn Friction Hinges
Do you have a window handle that requires extra force to lock, or a casement window that catches on the bottom of the frame when you close it?
When hinges get worn or loose, the window sash drops slightly out of place. Even a 2mm drop prevents the top corner of the window from pulling tight against the weather seal. You might not see the gap, but colder winds will certainly find it.
The Fix: Replacing worn hinges, handles, and internal gearboxes restores smooth operation and pulls the window flush against the frame, instantly sealing off draughts and improving your home’s security ahead of darker winter nights.
4. Servicing VELUX and Roof Lights
Roof windows take the brunt of severe weather. Over the summer, direct sunlight bakes the seals, while falling autumn leaves quickly clog the external flashing channels around the frame. If drainage channels are blocked when rainfall hits, water pools around the frame and eventually finds its way into your home.
The Fix: Clear away any debris from around the outside flashing. If your roof light is draughty or misty, a professional VELUX re-glaze and seal replacement restores full weather-tight performance without the mess or expense of re-plastering ceiling openings.
Save Money by Repairing First
Before the season sets in, spend 10 minutes checking the windows and doors in your home. Catching worn parts early stops small draughts from turning into massive heating bills.
“We’ve been looking after homes across Oxfordshire for over 20 years. We’d much rather save a customer money on a smart repair than sell them something they don’t need.” — Jack, Co-Owner of Windrush Door & Window Services
Our philosophy is simple: we repair whenever possible and replace only when necessary. Whether it’s replacing worn hinges, installing Low-E glass units, or overhauling patio door locks, our team is here to help.
Contact our team today on 01993 701193 or email info@windrushdoorsandwindows.co.uk to arrange an assessment.
