TradeMark is committed to providing a high-quality service and this extends long after your products have been installed. Our dedicated team of aftercare specialists are on call to help deal with any problems that might arise.


Our guarantees cover you for a massive 10 years on all our windows, doors and conservatories. After over 20 years of trading, we’re sticking around for you for much longer.

Envisage Flush Windows - Monkey Tail Handle


It’s important to regularly clean and look after your products. Doing so will not only keep them looking their best, but it’ll also help them to perform better for longer too.

To help, we’ve put together a series of bite-sized hints and tips that showcase how best to care for your products.

Please check out our  Helpful Guides section for more.

Aftercare - Cleaning


Condensation forms when vapour in the air meets cooler surfaces. Many people think that when these small droplets appear it signifies that there’s a problem.

However, condensation forming is a natural process and is a sign that your windows are performing as they should. Only if condensation appears between the panes of a your double- or triple-glazed unit should you be concerned.

Aftercare Condensation


Join us at our showroom in Woodley in the suburbs of Reading, to browse our products in person and speak with our team of advisors and designers about your next home improvement project.


Just a Call or Click Away

Should a lock become troublesome, or a door not operate as smoothly as it once did then our Aftercare department will be there to fix the issue. Just call us or send a request through for a service visit. It’s that simple.

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Want to speak with an Advisor? Give us a call on 0800 30 50 30

Our friendly team will be pleased to help with any questions you may have.