E 30 – EI 60
Fire-Rated Curtain Walling
Facade glazing tested for fire where boundaries or compartments demand it.
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Essex · CM1
Fire-Rated Windows for Chelmsford buildings
Looking for fire-rated windows in Chelmsford? We survey, supply and install tested fire-rated glazing for retail and leisure units, blocks of flats and other buildings in and around Chelmsford, including the CM1 postcode district.
E 30 – EI 60CM1England
Quote for Chelmsford
Tell us what you need. We reply with next steps and a guide price.
Fire-Rated Windows in Chelmsford: what's included
Fire-rated windows are windows tested as complete units to resist fire, needed where an external wall must protect a neighbouring property, where a window looks onto a protected stair or escape route, or where two parts of a building face each other at close range.
- Fire-stopping to the wall opening
- External-grade fire glass in sealed units
- Tested opening fire-rated windows where available
- Fixed fire-rated windows
Before you order fire-rated windows: what matters
Escape windows are different
Windows used for escape from rooms have their own size and opening rules, and should not be confused with fire-resisting windows.
Boundary distance
The closer a wall is to a boundary, the less unprotected area it can have. Fixed windows that meet the wall's full fire-resistance requirement, including insulation where required, are not counted as unprotected area; integrity-only glazing generally still is.
Ventilation
If a fire-rated window cannot open, ventilation may need another route. We coordinate with the designer.
Which rules apply to fire-rated windows in Chelmsford?
England Which rules apply?
Building work in England is covered by the Building Regulations 2010, with fire safety guidance in Approved Document B and impact safety guidance for glazing in Approved Document K.
Once a building is in use, the Regulatory Reform (Fire Safety) Order 2005 requires the responsible person to maintain fire safety measures, including fire-resisting glazing. The Fire Safety (England) Regulations 2022 add duties for multi-occupied residential buildings, including fire door checks in buildings over 11 metres.
In higher-risk buildings, broadly 18 metres or seven storeys with two or more homes, the Building Safety Regulator is the building control authority. England is also phasing out BS 476 references from Approved Document B, with the remaining fire-resistance references due to go in September 2029.
Chelmsford coverage and nearby towns
We cover Chelmsford and the surrounding postcode districts, including CM1, CM2. Nearby towns we also serve include Billericay, Witham, Maldon. Chelmsford is about 28 km from Southend-on-Sea, the largest town in our Essex coverage.
What every Chelmsford quote includes
Rated systems, not just rated glass
Every quote in Chelmsford identifies the tested system: frame, glass, beads, seals and fixings, within its pane-size limits.
Honest about unknowns
If an existing frame in a Chelmsford building has no traceable evidence, we say so and price the options rather than guess.
Work around occupied buildings
We can phase work in Chelmsford around residents, staff or pupils, with out-of-hours options.
Sectors we cover in Chelmsford
Fire-rated windows applies to many building types in Chelmsford, including retail and leisure units and blocks of flats.
FAQs for Chelmsford
Do fire-rated windows look different?
Frames can be slightly heavier, but most can be finished to match surrounding windows.
Is fire-rated glass in a standard window enough?
No. The frame, glazing system and fixings also need to be part of a tested window.
Which rules apply to fire-rated glazing in Chelmsford?
Building work in Chelmsford follows the Building Regulations 2010 and Approved Document B, and occupied buildings are covered by the Regulatory Reform (Fire Safety) Order 2005.
Can you price fire-rated windows in Chelmsford from photos?
We can give a guide range from photos and sizes, including a clear photo of any marks on the glass. A fixed price follows a survey.
Related
Related services in Chelmsford
E · EW
Integrity Fire Glass (E & EW)
E and EW glass where flames and hot gases must be stopped.
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EI 30 – EI 120
Insulated Fire Glass (EI)
EI 30 to EI 120 glass that blocks heat as well as flames.
Learn more →
up to EI 120
Steel Fire-Rated Screens
Slim steel frames for long spans, high ratings and heavy glass.
Learn more →Process
From enquiry to handover in Chelmsford
Share the details
Send the fire strategy extract, inspection report or a few photos of the openings.
Site visit
A survey in Chelmsford confirms sizes, access, existing evidence and fixing conditions.
Written proposal
We set out the system, glass, evidence and programme, with a fixed price.
Fit and record
We install, photograph seals and fixings before closing up, and hand over the schedule.