E 30 – EI 60
Fire-Rated Curtain Walling
Facade glazing tested for fire where boundaries or compartments demand it.
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Hertfordshire · AL10
Fire-Rated Windows — Hatfield and AL10
For Hatfield buildings, we supply, replace and check fire-rated windows wherever the fire strategy depends on it, working to the tested system rather than the glass alone.
E 30 – EI 60AL10England
Quote for Hatfield
Tell us what you need. We reply with next steps and a guide price.
Fire-Rated Windows in Hatfield: what's included
Most fire-rated windows are fixed lights, because opening windows need the opening sash, hinges and locks to be tested too. We supply and install fixed and, where tested, opening fire-rated windows in steel, aluminium and timber, matched to the surrounding windows where possible.
- Fire-stopping to the wall opening
- Boundary-wall and escape-route windows
- Tested opening fire-rated windows where available
- Fixed fire-rated windows
What to check before ordering fire-rated windows in Hatfield
Retrofits
Replacing a non-rated window near a boundary is often triggered by an extension or change of use. We survey the opening before quoting.
Ventilation
If a fire-rated window cannot open, ventilation may need another route. We coordinate with the designer.
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.
Hatfield coverage and nearby towns
Coverage around Hatfield includes the AL10, AL9, AL4, AL7 districts and nearby Welwyn Garden City, St Albans, Potters Bar. Hatfield is about 17 km from Watford, the largest town in our Hertfordshire coverage.
Windows in Welwyn Garden CityWindows in St AlbansWindows in Potters BarWindows in HertfordWindows in Harpenden
What you can expect in Hatfield
Evidence you can file
You receive the classification references, glass marks and installation photographs for your fire safety records.
Fixed written quotes
After survey you get a fixed written quote for the agreed scope, so Hatfield budgets are not open-ended.
Work around occupied buildings
We can phase work in Hatfield around residents, staff or pupils, with out-of-hours options.
Which rules apply to fire-rated windows in Hatfield?
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.
Hatfield building types
Sector guides below cover hotels, public buildings and other buildings in Hatfield.
Fire-Rated Windows: Hatfield questions
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.
Do fire-rated windows look different?
Frames can be slightly heavier, but most can be finished to match surrounding windows.
How quickly can you survey in Hatfield?
Survey timing in Hatfield depends on access, the size of the building and how urgent the defect is. Tell us your deadline when you enquire and we will confirm a date before you commit.
Do you work on occupied buildings in Hatfield?
Yes. We plan phasing, out-of-hours work and temporary protection so the building can stay in use where the fire strategy allows.
Related
Related services in Hatfield
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.
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up to EI 120
Steel Fire-Rated Screens
Slim steel frames for long spans, high ratings and heavy glass.
Learn more →Process
How a Hatfield job runs
Tell us what you have
Send drawings, a fire risk assessment action or photos of the glass marks.
Site visit
A survey in Hatfield confirms sizes, access, existing evidence and fixing conditions.
Written quote
You receive a written quote naming the tested system and classification.
Complete and document
Work is completed to the manufacturer's details and documented for your records.