Fire-rated sealing and fire stopping in Bagshot, Surrey
Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in Bagshot and the surrounding area. Send details for a fixed quote.
- Expanding foam used as fire stopping
- Improvised or mixed-product fire seals
- Hidden openings found during inspections
Fire stopping for businesses in Bagshot
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Fire stopping for commercial buildings in Bagshot
We are commercial sealant applicators, CHAS accredited and a Constructionline member, with CSCS-carded applicators on site. We hold no third-party fire-stopping installer certificate, and we won’t pretend otherwise. What we offer is careful installation of the specified sealant to its tested detail, with a 12-month guarantee on our workmanship. We work on service gaps in risers, linear gaps at wall heads and joints between fire-resisting walls and floors, and what we’re called in for most is builders’ foam or ordinary silicone in compartment walls and unsealed penetrations discovered above suspended ceilings. A specialist sealant contractor works differently from a general builder: in Bagshot, that means joint design, primers and backing rod as standard.
Around smaller places like Bagshot, many commercial buildings are conversions or extensions of older ones, so it’s worth confirming the wall or floor type before choosing the seal. We match the product to the substrate and service, and say so if a collar, wrap or batt is the specified item.
Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and we explain exactly what that covers when we quote.
- Where
- Bagshot (GU19)
- Wider area
- Surrey
- Guarantee
- A 12-month guarantee
- Quote
- A fixed quote before we start
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
When it isn’t the sealant
Part of a good diagnosis is knowing where sealant stops. You will hear from us if the cause turns out to be any of the following:
- Walls or floors that aren’t fire-resisting to begin with
- Designing or specifying fire stopping, which sits with the designer or fire engineer
- Issuing fire ratings or certificates for seals
If you are not sure, just give us a call on 01277 525 020 or email drawings and photos and we will give you a straight answer before you book.
Joints and surfaces we work on
- Small duct penetrations where the tested detail allows
- Joints between fire-resisting walls and floors
- Pipe penetrations
- Service gaps in risers
- Cable penetrations
- Linear gaps at wall heads
Commercial clients in Bagshot
When you manage a building on behalf of an owner, you need clear quotes and clear reporting. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.
Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Sites in Bagshot can sit alongside others in a wider programme across Surrey.
Cost factors for service penetrations
Sealant work doesn’t have a standard rate, because every site is different. What we look at:
- Access and working height
- Which sealant the job calls for
- Whether old sealant has to be cut out first
- How much there is to seal
Pricing service penetrations depends on how many there are, their condition and the access. Call for a quote.
Details that help us quote
It doesn’t need to be a full survey. These details are enough to start:
- Your programme or deadline
- Approximate linear metres or a joint schedule
- Clear photographs of the problem areas
- Any specification or named product
Need a figure for a tender or a budget? We’ll quote against your scope and drawings that you can work with. If you have questions first, call 01277 525 020 or use the quote form.
On site: what to expect
Inspect, seal, sign off: every visit follows that pattern. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and the job ends with a walk round and sign-off. If neighbouring businesses or buildings around Bagshot need work too, visits can be combined. Mention the building’s opening times and we’ll work within them.
- First we go through the drawings, schedule or specification for the seals and raise any questions before we price.
- Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
- Unsuitable fillers and loose debris are taken out of each opening.
- We fit the backing the detail asks for, to the stated depth.
- 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.
Getting the site ready
- Point out any areas we must not close
- Tell staff and tenants when we’ll be in
- Tell us your opening times and when work is allowed
Getting a fixed quote
To get a fixed quote, phone 01277 525 020 or email drawings and photos, telling us the site location and the nature of the job. You can also send details through our quote form.
Related advice
Why deal with it now?
Sealing behind the M&E trades area by area beats a sweep at the end. Openings are visible, access is open and nothing has to be taken down. Small buildings around Bagshot suffer from failed joints as much as large ones. Early resealing avoids the damage that follows a leak.
We don’t publish prices, because the scope varies so much from one building to the next. For a fixed figure, call for a quote and we will price your job on its own details.
Why choose Mastic Doctor in Bagshot
- One phone line for London, the South East and Scotland
- Public liability insurance in place
- Sealing commercial buildings since 2005
- A fixed quote before work starts
Read what affects the cost and our accreditations and insurance.
Bagshot: questions and answers
Is hospital work, at somewhere like Frimley Park Hospital, something you do?
Yes, hospitals are one of the sectors we cover. The estates team’s permit system and infection-control rules come first, and the work is planned around them.
Do you work on fire-rated sealing in hotels in Bagshot?
Yes, where fire-rated sealant is the specified product. Each seal follows the tested detail, and rooms are done in turn.
Can weather delay the job?
It can, for external work. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.
Is colour matching possible?
That depends on the product specified. Some ranges offer many colours, others very few, so the available colours are confirmed with the quote.
Is the work guaranteed?
Yes. It runs for twelve months and covers how we prepared and sealed the joints, but not damage, misuse or other trades’ work.
Do you hold CHAS accreditation?
Yes. CHAS accredited, Constructionline member, and our applicators hold CSCS cards.
Will your applicators have CSCS cards?
Yes. If you need card details for site access, tell us and we will confirm them with the quote.
Doing it in-house
A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.
Towns and villages near Bagshot
More services for Bagshot
Fire stopping around Bagshot: what changes locally
In England, Approved Document B covers fire stopping of openings and penetrations. 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. What we install is set by the specification, and it goes in to the tested detail. Central London is about 27 miles from Bagshot. Offices around the capital are refitted often, and the cabling that follows can breach fire-resisting walls, and the gaps need sealing with the specified product.
Hotels like Pennyhill Park Hotel, 0.8 miles west of Bagshot, are refurbished in phases, and each phase can open up compartment walls. On a hospital site such as Frimley Park Hospital, which lies south-west of Bagshot, fire-rated sealant goes in where the specification calls for it, with the work planned around the estates team’s permits. For a school such as Bagshot Infant School, penetration sealing fits best at the end of the summer works.
Bagshot is about 2 miles north-east of Camberley, in Surrey. Our applicators travel to Bagshot for work on service penetrations. Bagshot is one of 379 places we cover in Surrey. Our Reading page has more on work in that area (14 miles or so).
Anyone looking for fire stopping in GU19 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. For a building on The Square, High Street and London Road or nearby, we can quote for service penetrations. Bagshot sits on or close to the B3029, which helps when planning parking and deliveries for the job. We also cover Lightwater (1 mile south-east), Windlesham (2 miles east), Donkey Town (2 miles south-east), Lucas Green (3 miles south-east) and West End (3 miles south-east). Further afield, our area takes in Guildford (9 miles south-east), Woking (6 miles south-east), Farnham (11 miles south-west), Egham (8 miles north-east), Walton-on-Thames (12 miles east) and Frimley (4 miles south-west).
Around Bagshot
Locally, jobs take us to sites close to Kings Arms, Bagshot Park and Collingwood College and the streets around them. There’s a railway station in Bagshot itself: Bagshot station. Other landmarks nearby include Surrey Heath Museum (2.6 miles south-west) and Frimley Park Hospital (3.5 miles south-west). For a walk, there’s Wildmoor Heath.