We are happy to advise you

0116 288 4455

enquire online

Q-Lon Weatherproofing

Weatherseal performance matters in windows, that’s why our windows are supplied with Q-Lon pre-inserted into all sections.

Trust the world’s best weatherseal gasket.

  • Best acoustic and thermal performance across the widest temperature range
  • 99% memory recovery. Retains shape year after year
  • Low operating forces reduces wear and tear and gives ease of operation
  • Leaves no rigid sprue after welding
  • 20 year guarantee.

Great performance everytime

The charts below show the compression performance and set when compared with competitor gaskets, this demonstrated the recovery of the gasket after compression thus ensuring consistent performance after your windows are opened and closed, particularly if they are left closed for a long time.

The graph below shows the weather performance against competitor gaskets and demonstrates that Q-Lon provides less air leakage over a wide temperature range when compared to our competitors.

Q-Lon

Setting the standard

The world’s best weatherseal gasket. Excellent compression recovery of 99%.

WER

Reaching higher.

Window Energy Rating – The future of energy efficient windows from the BFRC.

Security

Security

Designed in. Our new Sac shootbolt system is specially designed to be flexible and adaptable.

Give us a ring today

We are happy to advise

0116 288 4455

Environmentally Top Class

Our products come top of the class when it comes to environmental credentials, they have been awarded an energy rating of A.

Smarter products - brighter future

Our products are packed full of clever features like plastic thermal reinforcements made from 100% recycled material to keep more heat in.

Environmentally Top Class

FENSA regularly perform checks, both planned and surprise, to ensure everything we fit meets their high standards.