Fire stopping in Windlesham
Work needed on a service penetration in Windlesham? We assess it, carry out the work and guarantee our workmanship for 12 months.
- Seals that don’t match their tested detail
- Service penetrations left open after M&E works
- Fire seals cut back for extra cables and never reinstated
Fire stopping for Windlesham sites
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Fire stopping in Windlesham, done properly
Penetration seals are fire tested to BS EN 1366-3 and linear joint seals to BS EN 1366-4, with results classified under BS EN 13501-2. A rating such as EI 60 only holds when the product is installed as it was tested. Reproducing the tested arrangement on site is the part we take care of. The enquiries we see most involve old intumescent sealant that has split away and fire-stopping items raised at inspection or handover, across service gaps in risers, small duct penetrations where the tested detail allows and joints between fire-resisting walls and floors. Whoever orders the work in Windlesham, the brief is normally the same: a clear scope, tidy work and joints that don’t fail again.
Fire-rated sealing in a place like Windlesham is normally a single building at a time. With the specification and photographs of the gaps, we can give a fixed quote and bring the right products.
Building owners and contractors get the same cover: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.
- Place
- Windlesham (GU20)
- Wider area
- Surrey
- Guarantee
- 12 months on our workmanship
- Quote
- A fixed quote before we start
- Phone
- 01277 525 020
- Updated
- 3 November 2026
From enquiry to sign-off
Diagnose, treat, sign off: that’s the shape of every visit. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and we finish with a walk round so the work can be signed off. For a site in Windlesham, we plan so the whole job is done in one go where possible. Photos with rough sizes let us arrive with everything needed.
- We read the specification, drawings or penetration schedule you send and ask about anything unclear.
- Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
- Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
- Mineral wool or other backing goes in wherever the detail asks.
- Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
- If an opening needs something other than sealant, we tell you instead of improvising.
Before we start on site
- Point out parking and an unloading spot
- Clear stock, furniture or equipment away from the joints
- Agree which areas must stay open
Ask for a quote
Quotes are fixed against the scope you send, so the cost is agreed before work starts. To start the process, phone 01277 525 020 or send details through our quote form.
Related advice
Also near Windlesham
Other services in Windlesham
What we’re called out for in Windlesham
Damage plays a part too. Seals get knocked during maintenance, cut back to add a cable or pulled out when services are swapped, and the repair is often skipped.
Any of the following is a good reason to get the joints checked over:
- Old intumescent sealant that has split away
- Penetration schedules that need working through
- Non-fire-rated filler around services
- Openings left by services added after handover
Schools such as Windlesham Village Infant School often have new data and services installed during holidays, and penetrations through fire-resisting walls should be checked afterwards.
Before you book anyone
- How long is the guarantee, and what does it include?
- Their public liability cover
- Are they CHAS accredited or on Constructionline?
- How joint depth will be controlled
What we can’t put right
A few problems need another trade or a different fix, and we point that out rather than sealing over them:
- Signing off or certifying a building’s fire stopping
- Deciding what a wall or floor needs, which belongs to the designer
- Gaps in walls that were never built as compartment walls
If you are not sure, just speak to us on 01277 525 020 or send details through our quote form and we will give you a straight answer before you book.
Surfaces we seal
- Small duct penetrations where the tested detail allows
- Linear gaps at wall heads
- Joints between fire-resisting walls and floors
- Cable penetrations
- Service gaps in risers
- Pipe penetrations
FAQs: Windlesham
Do you take on work at healthcare sites like Heatherwood Hospital?
Yes, healthcare and care buildings are part of our work. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
Do you cover business parks and estates near Windlesham, such as Ascot Business Park?
Yes. Our area takes in Windlesham and its surroundings, with estates and business parks such as Ascot Business Park included. To start, just phone 01277 525 020 or email the details over with the unit, the joints involved and your access times.
Do you guarantee your work?
Yes, for 12 months. If a joint fails because of how we installed it, we come back and put it right.
Is sealant suitable for all service openings?
No. Sealant is the right product only where the tested detail says so. Large openings, many plastic pipes and some ducts need collars, wraps, batts or boards, and we’ll tell you when that applies.
Will you write the fire-stopping specification?
No, we don’t design fire stopping. With the designer’s details in hand, we can price the sealant elements and point out anything needing another product.
Do you offer coloured sealant?
It depends on the product. Some ranges are wide, others limited, so we’ll confirm the colours available for the specified product with the quote.
Will you just go over the old sealant?
No, never. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.
When to bring in a specialist
What you see is the finished bead, but most of the work is hidden. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.
Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
Fire stopping around Windlesham: how the place shapes the job
The area within 2 miles of Windlesham holds a number of hotels. Hotels are divided into compartments, and refurbishments that add pipes and cables through bedroom and corridor walls leave gaps to close. Fire stopping of openings and penetrations in England falls under Approved Document B. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. Our part stays the same: the specified product, installed to its tested detail.
In a building such as Church of St John the Baptist, any service penetration through a fire-resisting wall should be sealed to the specified detail. Offices at parks like Ascot Business Park (to the north of Windlesham) are re-cabled with each new tenant, and compartment walls need sealing afterwards to the tested detail.
Windlesham is about 4 miles north-east of Camberley, in Surrey. Windlesham sits inside our coverage and the rest of Surrey, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Our Surrey coverage takes in 379 places. Reading is covered too, some 15 miles away.
We take on service penetrations across the GU20 postcode area, whatever the building. Streets here include Church Road, Finney Drive and Cooper Road. Just outside Windlesham, we also work in Brick Hill (1 mile east), Lightwater (1 mile south-west), Bagshot (2 miles west), Donkey Town (2 miles south) and Broomhall (2 miles north-east). Further afield, our area takes in Guildford (9 miles south-east), Woking (5 miles south-east), Camberley (4 miles south-west), Farnham (12 miles south-west), Egham (6 miles north-east) and Walton-on-Thames (11 miles east).
Landmarks near Windlesham
We work on buildings around The Sun pub, Brentmoor Heath and Gordon's School and the streets around them. Windlesham’s nearest station is Bagshot station, about 1.4 miles west of the centre. Well-known places in the area include Chobham Museum (2.6 miles south-east) and Heatherwood Hospital (3.3 miles north-west). The countryside around Windlesham includes Gracious Pond and Virginia Water Lake.
What the job involves on each surface
Risers and ceiling voids
Risers and ceiling voids hold most of a building’s service penetrations. Access is often tight, so we agree it with you in advance.
Metal pipes
Sealant details often cover copper and steel pipework. The tested detail sets the pipe size range, gap, depth and whether insulation can stay on and we confirm each before sealing.
Work for main contractors and building owners
Building owners and managing agents use us on everything from one building to a spread of sites. Several sites can go on one quote, so there’s one set of paperwork to deal with.
For main contractors, we work as the sealant subcontractor. We work to your programme, your specification and your site rules.