Cold Spots Around Windows And Doors Medway
How Missing Expanding Foam Affects Your Home’s Energy Rating
Hi, I’m Tim from TS Glazing,
and one issue I come across time and time again when inspecting windows and doors across Medway is a lack of expanding foam around the frames.
Homeowners often tell me they feel cold draughts, notice chilly patches around their windows, or struggle to keep rooms warm, even though the windows themselves look perfectly fine. In many cases, the problem isn’t the glass or the frames at all. It’s what’s behind them.
What Is Expanding Foam and Why Does It Matter?
When windows and doors are installed properly, expanding foam is used between the frame and the brickwork. This foam acts as a thermal barrier, sealing gaps that would otherwise allow cold air in and warm air out.
If that foam is missing, poorly applied, or has broken down over time, it creates hidden gaps, and those gaps can seriously impact your home’s comfort and energy efficiency.
Common Signs We See in Medway Homes
- Cold spots around window or door edges
- Draughts you can feel, especially in winter
- Rooms that never seem to warm up properly
- Higher heating bills with no obvious reason
- Condensation or damp forming near frames
I recently visited a property in Walderslade where the homeowner assumed their windows were failing. Once we removed the internal trims, it became clear there was barely any foam behind the frames at all. The windows themselves were fine — the insulation simply wasn’t doing its job.
How Missing Foam Affects Your Energy Rating
Even the best double or triple glazing won’t perform properly if the installation hasn’t been insulated correctly.
Without expanding foam:
- Heat escapes through the gaps around the frame
- Cold air seeps in from outside
- Your window’s energy rating is effectively reduced
- Your heating system has to work harder
- Comfort levels drop noticeably
This is especially common in older installations or where corners were cut during the original fitting.
Why This Isn’t a DIY Fix
This is something I get asked a lot, and the honest answer is that it needs to be done professionally.
To properly resolve the issue, the frame needs to be assessed carefully, insulation applied correctly, and everything sealed back up without causing damage to the window, door, or surrounding plasterwork. Done incorrectly, it can lead to warped frames, movement issues, or further draughts.
At TS Glazing, we know exactly where to look and how to fix it properly.
How TS Glazing Fixes the Problem
When we inspect a window or door with cold spots, we:
- Check the installation around the entire frame
- Identify missing or failed insulation
- Apply the correct expanding foam where required
- Reseal internally and externally for airtightness
- Ensure the window or door operates perfectly afterwards
- Ensure the window or door operates perfectly afterwards
This approach restores warmth, improves energy efficiency, and often avoids the need for costly replacements.
Why Medway Homeowners Trust TS Glazing
We’re a husband-and-wife team based in Hempstead, Medway. My wife Sam handles the office and customer care, while I carry out inspections, repairs and installations myself.
We don’t believe in upselling or unnecessary work, just honest advice and proper solutions.
We help homeowners across:
Gillingham, Rainham, Chatham, Rochester, Strood, Wigmore, Lordswood and surrounding Medway areas.
- Honest advice
- Energy-efficient solutions
- Repairs before replacements
- Friendly, reliable local service
- Free quotes & no hard sales
Get in Touch
If you’re experiencing cold spots around your windows or doors, or your home just doesn’t feel as warm as it should, missing insulation could be the cause.
Get in touch with TS Glazing today and we’ll inspect the issue, explain what’s going on, and provide honest advice with a free quote.
Have a look at our Checkatrade reviews or visit our Facebook page to see what local homeowners say about our work, we’re proud to keep Medway’s homes warm, secure, and crystal clear.