The Patented Thermawood retro fit double glazing drainage system is the most advanced double glazing system for installing double glazing and draught seals into existing and new timber joinery.
The Thermawood system was designed by industry professionals to create the best system for
installing double glazing into wooden joinery, avoiding the inherent problems of double glazing
failing due to improper installation and lack of drainage.
By installing double glazing and draught seals into your existing windows, this allows the home owner to retain character, reduce noise, be more energy efficient & save on energy costs.