How we approach glass links & glass box roofs in Chelmsford
Our glass links & glass box roofs service in Chelmsford covers frameless glass links joining old and new buildings. Every job starts with a survey of the opening, the roof covering and the room below, and a fixed written price.
In the East of England, bungalows and chalet bungalows with large flat-roofed extensions are common, and they often suit a long run of rooflights. Glass links & glass box roofs suit joining a period house to a new extension or annexe.
Jobs in Chelmsford are planned around access: whether the roof can be reached from the garden, whether a hoist or crane is needed, and where we can park. We check this when we measure.
Options we can specify in Chelmsford
- Solar-control and low-iron glass
- Structural glass beams and fins
- Heated glass on some systems
- Frameless or slim-framed glass
- Concealed gutters and drainage
- Bright circulation space
- Visually light connection between buildings
What to check first
- Thermal performance of large glass areas must be calculated
- Abutments with old masonry need careful weathering
Planning and building rules for Chelmsford
English householder permitted development (Class C) normally covers rooflights that stand no more than 0.15 m proud of the roof plane and stay below the highest part of the roof. A rooflight on a side-facing slope must be obscure-glazed, and fixed shut unless the opening part is more than 1.7 m above the floor.
For English homes the energy rules ask for rooflights of 2.2 W/m²K or better and roof windows of 1.4 W/m²K (or WER Band B); most modern double glazed units meet both. The Future Homes and Buildings Standards, published in March 2026, apply from 24 March 2027 and keep the 2.2 W/m²K limit for rooflights.
See our building regulations guide for U-values, glazing limits and self-certification.
Guide prices for Chelmsford
Guide prices for glass links & glass box roofs in Chelmsford are the same as anywhere we work — what changes the price is the job: access, structure, scaffold and finishing.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Fully frameless link with glass beams | £20,395 – £35,995 | £16,995 – £29,995 |
| Glass roof and glazed sides Typical | £13,195 – £20,395 | £10,995 – £16,995 |
| Glass roof between existing walls | £9,595 – £13,195 | £7,995 – £10,995 |
The process, step by step
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Chelmsford address.
- Survey. We measure the opening, check the roof build-up and agree the options.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Nearby towns
Other services in Chelmsford
Common questions
How is the glass joined to the old wall?
Usually by a slim channel or flashing set into the masonry, sealed and weathered so the old wall can move without cracking the glass seal.
Do glass links need planning permission?
Often, yes — and listed building consent if either building is listed. We can provide drawings and product data for your application.
Who designs it?
Your architect, or we produce a survey-based design that the glass manufacturer engineers.
Do you fit glass links & glass box roofs in Chelmsford?
Yes. We survey and fit glass links & glass box roofs in Chelmsford and across Essex. Send your postcode and we will offer a survey date when we reply.
Is the survey in Chelmsford free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
