Quality and Security

Quality and Security

At Merton Windows, we know you expect the very best. That’s why we’re pleased to say we offer our customers just that. Not only are our products and services of the very highest quality, but you can rest safe in the knowledge that they’ll give your property impeccable security standards, too. Learn more about quality and security with Merton Windows, here…

For the highest levels in quality and security, trust Merton Windows

Call our glazing team today on 020 8542 2233 if you have any more questions about our approach to quality and security. Alternatively, send us an email and we’ll get back to you to help.


Merton Windows can assure you of quality across the board, from our wide-ranging product line to our superior customer service.

Our products…

  • Are industry leading… from Pilkington Glass to the Kömmerling Connoisseur Gold range.
  • Meet and exceed British Standards.
  • Ensure the best energy efficiency when it comes to thermal conductivity and condensation.

Our service…

  • Is reliable, with our directly employed team working for us full-time.
  • Is clean and tidy, as we’ll always responsibly remove all rubbish from the building site once our work is done.

Our credentials…

  • We’re FENSA-registered.
  • We’ve had many years of experience in the glazing industry, having won countless contracts throughout London and the South East.

Our promise…

  • You’ll receive a 10-year guarantee on all glazing work for your total peace of mind and confidence.
  • You’ll be guaranteed through the Consumer Protection Association.
  • Our work will always comply with current building regulations.
  • Our work will meet your insurance company’s requirements.


For Merton Windows, your safety is paramount. That’s why security is key in the design and engineering of all our products.

Our windows…

  • Are from the Kömmerling range, the first products to get the British Board of Agreement’s approval for high security standards.
  • Are fully reinforced for your protection.
  • Have multi-point security locking with a night vent.
  • Have key locking handles.
  • Have a “push to unlock” feature for emergency exits.
  • Feature Eurogrooves, allowing additional security measures, such as shootbolts, to be installed without impacting the glazing product.

Our doors…

  • Are fully reinforced for your protection.
  • Have a triple locking system.
  • Feature three hinges and six Yale barrel locks for the ultimate in property security.

For us, the devil’s also in the details. On all our products, transoms, mullions and corners are welded for the ultimate in strength and security.