Slim Cavity Units in Letchworth
Narrow-cavity glazing for conservation sightlines. Covering Letchworth and the surrounding Hertfordshire area.
- Made to size from a measured survey, never cut down from stock
- FSC-certified timber with chain-of-custody paperwork
- Fixed written quotation with the lead time stated
- 10-year workmanship guarantee in writing
Free measured survey · No obligation · Reply within one working day
Slim Cavity Units in Letchworth
Free survey, fixed written price.
Slim Cavity Units for Letchworth properties
Half the Slim Cavity Units problems we fix in Letchworth started as a sizing assumption. Because the area is mainly garden city stock, Georgian market town frontages and commuter-belt detached housing, no two openings measure quite the same. Add moderate rainfall with cold inland frosts to that and frost damage to end grain and swelling on unbalanced-finished units becomes the usual trigger for replacement. The part that matters is narrow cavities that perform while keeping the sightline historic.
Manufacture only starts once the survey figures are agreed with you in writing. Send us sizes and a photograph and we will come back with a fixed written price.
Something particular to this area: garden city areas carry design codes that restrict window style changes.
See everything we cover in Letchworth or view Slim Cavity Units across Hertfordshire.
What clients tell us
Feedback collected directly from completed projects. Full written references are available on request before you commit.
“The survey showed most of the loss was around the frames, not through the glass at all.”
Verified client, Hertfordshire“Half the cost of replacement and the rooms hold heat noticeably better.”
Verified client, Hertfordshire“They fitted trickle vents we had not thought about, which stopped the condensation.”
Verified client, HertfordshireTalk to us about your project
Free, no obligation, and a fixed figure in writing. We will tell you honestly if what you are asking for is not the right answer.
Request a quote Call 0800 088 6248