Construction marketing agency MRA Marketing has been appointed to promote Timberweld®, a patented method of welding frames which creates an authentic timber butt-joint effect – on both sides of the window, inside and out. Alan Burgess (who designed the UK’s first dedicated PVC-U box sash in 1984 and is credited with creating the PVC-U sliding sash market) and Masterframe Technical Director Ray Rabett, are the innovators behind the Timberweld technology.

Simple mechanical or butt joints tend to be open-ended, allowing rainwater, draughts and even flies in. Timberweld uses a different method of corner construction, so the edges are completely sealed, yet the resultant timber-look butt-jointed weld, is easily the most authentic on the market.

Timberweld has been tried and tested on Masterframe vertical sliders for 13 years and it’s been used on flush casement sashes for two, and is able to be used on a number of different profiles. It’s been licenced to a growing number of respected fabricators including Aztec, CWG, FastFrameUK, Fortress, HWL, John Fredericks, Modplan and Window Tech Trade among others – see for a complete list.

To find out how you can obtain a license to manufacture Timberweld call 01376 510 410 or email

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