Fire stopping in Pirbright
Fire-rated and intumescent sealing of service penetrations and linear gaps across Pirbright, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.
- Openings found when ceilings come down for a refit
- Fire-rated sealant that has cracked or shrunk back
- Expanding foam used as fire stopping
Need fire stopping in Pirbright?
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Cost factors for service penetrations
Sealant work doesn’t have a standard rate, since sites vary so much. What we take into account:
- Travel to remote or island sites
- Backing rod, priming and other preparation
- How much there is to seal
- Whether the work must be split into stages
What a job costs comes down to the quantity of joints, how much old material needs removing and how the joints are reached. Call for a quote when you are ready.
Details that help us quote
The more we know, the firmer the quote. When you get in touch, include:
- Anything awkward about access or site hours
- Photos of the joints, close up and from further back
- Approximate linear metres or a joint schedule
- Specification clauses that apply
A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we will fill any gaps with a visit.
Fire stopping in Pirbright
Opened ceilings and riser doors often reveal service openings nobody sealed. Where the walls and floors already have a fire-stopping specification, we can work to it using the product and detail it sets out. Where there isn’t one, the designer or fire engineer needs to set one first. We work on small duct penetrations where the tested detail allows, pipe penetrations and cable penetrations, and the failures we’re asked to look at most are snag lists that include open service penetrations and hidden openings found during inspections. Looking for mastic applicators who cover Pirbright? We have been sealing commercial buildings since 2005.
Rural conversions around Pirbright can put new fire-resisting partitions inside older structures. Where a pipe or cable passes through a fire-resisting wall, the seal must match the tested detail: product, substrate, gap and depth.
Guaranteed is the last step of every job. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.
- Where
- Pirbright (GU24)
- Wider area
- Surrey
- Cover
- 12 months on our workmanship
- Quotes
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Site staff or a sealant specialist?
Redoing a failed joint usually costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. That’s why many clients bring in a specialist from the beginning.
Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
How a job runs
We follow your site rules from the start: sign-in, induction and whatever permit system the building uses. Once we’re cleared to begin, the joints are worked through in the order agreed with your site contact. If others near Pirbright need work, visits can be combined. You’ll have a fixed quote before work starts.
- First we go through the drawings, schedule or specification for the seals.
- 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.
- Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.
Before we start on site
- Make sure the joints can be reached
- Send asbestos survey details if the building is pre-2000
- Tell us your opening times and when work is allowed
Getting a fixed quote
Tell us about the building, the joints and when you need the work done, and we’ll put a fixed quote together. To get it moving, speak to us on 01277 525 020 or email a schedule or drawings.
Advice
Penetration seals near Pirbright
For England, the fire stopping of penetrations is dealt with in Approved Document B. References to the older BS 476 classes are being removed from it from 2 September 2029, after which the European classification, BS EN 13501-2, is the route, subject to transitional arrangements. We install whatever has been specified, to the product’s tested detail. Pirbright lies roughly 28 miles out from central London. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls.
Tenant changes at parks like Normandy Business Park, 1.5 miles to the south of Pirbright, bring new data and services, and openings through fire-resisting walls need the specified seal. For a site team at a college like Merrist Wood College, which lies south-east of Pirbright, fire-rated sealing is best scheduled after the summer works. For a building such as Church of St Michael and All Angels, new heating or data runs are the usual reason penetrations need sealing.
Pirbright is about 3 miles south-west of Woking, in Surrey. Looking for fire stopping in Pirbright? We can help. 379 places across Surrey fall within our area, including Pirbright. For work in that direction, see our Reading page (18 miles or so).
Postcode districts covered here: GU24 for service penetrations. If your site is on Cowbridge Meadow, Gibb's Acre and Church Lane or close by, we can quote for service penetrations. Pirbright sits on or close to the A324, which helps when planning parking and deliveries for the job. We also cover Stanford Common (1 mile south), Worplesdon (2 miles south-east), Willey Green (3 miles south), Fairlands (3 miles south-east) and Normandy (3 miles south) for service penetrations. Bigger towns within reach include Guildford (5 miles south-east), Woking (3 miles north-east), Camberley (5 miles north-west), Farnham (9 miles south-west), Egham (10 miles north-east) and Walton-on-Thames (12 miles north-east).
Around Pirbright
Recent enquiries here include premises near White Hart pub, Pirbright Village Primary School and The Winston Churchill School A Specialist Sports College. For rail, the closest station is Brookwood station, roughly 0.8 miles north-east of the centre. A little further out are The Museum of The National Rifle Association (1.3 miles north) and Brookwood Hospital (1.9 miles north-east). Green spaces nearby include Brookwood Lye.
Places near Pirbright
More services for Pirbright
Questions about Pirbright
Can you work around term dates at a campus such as University of Surrey?
Yes, holiday working periods are the norm on campus jobs. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.
Would you work within a site like Cygnet Hospital?
Yes, healthcare and care buildings are part of our work. Each area is agreed with the ward or department and the estates team in advance.
Can you tell us what fire stopping our building needs?
No, that isn’t our role. Once you have a specification, we can price and install the sealant elements of it and point out anything needing another product.
Will fire-rated sealant work on every penetration?
No. Each fire-rated sealant is tested for particular services, gap sizes and substrates. Outside that, a different product is needed.
Can you handle several sites?
Yes. Several buildings can share a single quote, and you deal with one contact throughout.
Can you send site paperwork?
Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm them with the quote.
What do you charge?
Every job gets its own fixed quote. To get one, call 01277 525 020 or send details through our quote form with a description of the work.
For managing agents and facilities managers
For main contractors, we work as the sealant subcontractor. Programme, specification and site rules come first, and our applicators hold CSCS cards.
If you look after buildings for someone else, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.
Why deal with it now?
Open penetrations multiply: each new service adds to the list. Keeping on top of it after each round of works keeps the job small, rather than turning into a full building survey and reseal. For buildings around smaller places like Pirbright, water damage can go unnoticed for longer, especially where a building isn’t used daily, which gives a failed joint time to do damage. Renewing joints in good time avoids the problem.
No two sites price the same: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.
Why choose Mastic Doctor in Pirbright
- Work to your specification and the manufacturer’s guidance
- CSCS-carded applicators
- Old sealant cut out, never sealed over
- A Constructionline member, so easy to vet
Read how commercial sealant jobs are priced and our accreditations and insurance.
How the job changes by surface
Plastic pipes
Plastic pipes soften and collapse in a fire. Some intumescent sealants are tested on smaller plastic pipes, but many need a collar or wrap. We confirm material and size first and tell you if sealant isn’t the right product.
Small ducts
We seal around ducts only within what the tested detail covers. Dampers and ductwork systems themselves are outside our work.