Services · 07
Windows, Doors & Roof Glazing
The upgrade that changes a room fastest
Big glazing looks simple and isn't. A 4-metre sliding door set needs an opening formed and propped, a lintel or goalpost sized for the load above it, a level threshold detail that doesn't leak, and a supplier survey taken from the built opening rather than the drawing.
We do all of it. Jenny Hills' project included exactly this — "windows and doors upgrade" — alongside the extension and the render, as one priced package.

Structural opening included
Steels, props, lintels and making-good are ours. You aren't left holding a delivery of glass with nowhere to put it because the builder and the window company disagree about who forms the opening.
Surveyed off the real opening
Glazing is ordered from a survey of what's actually been built, not from the drawing. It adds a week to the programme and removes the most common cause of a six-week delay.
Lanterns and rooflights
Roof lanterns transform a deep-plan extension — but only if the upstand, the ring beam and the flashing are detailed properly. We build the upstand as part of the roof, not as an afterthought bolted to it.
What's included
- Full window and door replacement
- Sliding door sets and bi-folds
- Roof lanterns and flat rooflights
- Structural openings, lintels and goalposts
- Level-threshold detailing
- French doors and entrance doors
- Making-good internally and externally
- Supplier coordination and survey
★ Rated 5.0 on Google · run by Tom & Rob · serving St Albans, Hertfordshire, Bedfordshire & Buckinghamshire
From the project gallery
Related work.
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