
Brighstone fire stopping
Fire-rated and intumescent sealing of service penetrations and linear gaps throughout Brighstone and nearby, by CSCS-carded applicators. CHAS accredited and fully insured.
- Head-of-wall gaps with no fire seal
- Openings found when ceilings come down for a refit
- Damaged fire seals in risers and voids
Fire stopping in Brighstone
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Keeping the joints sound
Your facilities or cleaning team can help the joints last. Pass these on to them:
- Put resealing into every M&E and fit-out package
- Flag new cables with no seal around them
- Don’t let anyone top up a fire seal with the wrong product
- Leave fire sealant to cure fully before covering it
Don’t patch a fire-rated seal with anything outside its tested detail. A repair should use the original product, installed the same way.
Specify fire stopping early on refits, not as an afterthought. Details can then be picked to suit the actual pipes, cables and ducts, and installation follows the programme.
About our fire stopping in Brighstone
Our applicators are CSCS-carded, and we are CHAS accredited and a Constructionline member. 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. The enquiries we see most involve improvised or mixed-product fire seals and old intumescent sealant that has split away, on service gaps in risers, small duct penetrations where the tested detail allows and cable penetrations. Searching for sealant specialists in Brighstone? Mastic Doctor has worked for contractors, FMs and building owners since 2005.
Barn and farm-building conversions near places like Brighstone often combine new partitions with old walls. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.
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.

- Location
- Brighstone (PO30)
- Wider area
- Isle of Wight
- Cover
- A 12-month guarantee
- Quote
- A fixed quote before we start
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Also near Brighstone
What else we do in Brighstone
What happens if it’s left?
Fire stopping is a regular point raised at inspections and handover. Finding unsealed or improvised openings late can hold up a programme, so earlier action pays back. Older rural buildings around Brighstone move with the seasons, and rigid or tired sealant can’t keep up. A sealant with the right movement capability, correctly sized, lasts far better.
There’s no price list, since every building and every scope is different. For a fixed figure, call for a quote.
Why us?
- Clear, fixed quotes
- Commercial sealant work since 2005
- One contact handling all your sites
- Public liability insurance in place
When to call us in Brighstone
Openings in fire-resisting walls typically appear when services are added or changed. New cabling, rerouted pipework or a data route drilled through a riser can leave the hole behind. Over a few years of fit-outs, a wall can collect a lot of these.
Site and facilities staff are often the first to spot these:
- Hidden openings found during inspections
- Fire stopping installed outside its tested range
- Head-of-wall gaps with no fire seal
- Non-fire-rated filler around services
For a school such as Brighstone Church of England Aided Primary School, penetration sealing fits best at the end of the summer works.
What your quote should include
- Whether old or failed sealant will be cut out, not overlaid
- Which product they’ll use, and why it suits the joint
- Their plan for phasing and protecting the area
- Will CSCS-carded applicators be on site?
Your questions answered
Is Brighstone too small for you to travel to?
No. Small places get the same service as large ones. We work across Greater London and the South East. Send photographs and a list of what needs doing, and we’ll plan the job to need as few trips as possible.
What does the BS 476 change mean for fire-rated sealant in Brighstone?
References to BS 476 classes are being removed from Approved Document B from 2 September 2029, after which BS EN 13501-2 classification is the route, subject to transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.
Who decides which product is used?
A specification, where there is one, decides it. Without one, the joint decides: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.
Are you CHAS accredited?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.
Do you offer coloured sealant?
That depends on the product. Some ranges offer many colours, others very few, so the available colours are confirmed with the quote.
How long before the joints can be used?
We will confirm how long the chosen product needs to cure.
What hours do you work?
Mention the site’s hours and access windows in your enquiry, and we’ll schedule the work to suit. You can reach the office between 8am and 5pm, Monday to Friday.
Honest limits
Sealant solves a lot, but not everything, and we are upfront when that’s the case. It won’t fix:
- Fire risk assessments, a job for a competent assessor
- Walls or floors that aren’t fire-resisting to begin with
- Designing or specifying fire stopping, which sits with the designer or fire engineer
Not sure which it is? You can phone 01277 525 020 or email the details over and we’ll tell you honestly.
Where we work in Brighstone
- Pipe penetrations
- Joints between fire-resisting walls and floors
- Service gaps in risers
- Small duct penetrations where the tested detail allows
- Linear gaps at wall heads
- Cable penetrations
Compartments and services around Brighstone
For England, the fire stopping of penetrations is dealt with in Approved Document B. The national BS 476 classes are due to drop out of it from 2 September 2029, leaving the European BS EN 13501-2 route, subject to transitional arrangements. What we install is set by the specification, and it goes in to the tested detail.
Older community buildings such as St. Mary's Church that have been rewired or given new heating can have service gaps through walls worth checking against the specification. Wherever services are added at a hospital such as Whitecroft Hospital, 4.7 miles to the north-east of Brighstone, the compartment line has to be made good with the specified product.
Brighstone is about 6 miles south-west of Newport, in the Isle of Wight. Any commercial site in Brighstone is covered, for single jobs and planned programmes alike. Brighstone is one of 125 places we cover in the Isle of Wight for service penetrations. There’s a separate page for Portsmouth, roughly 18 miles from Brighstone.
Anyone looking for fire stopping in PO30 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. For a building on Main Road, Meadows Close and Wilberforce Road or nearby, send details and we’ll quote for service penetrations. Being close to the B3399, Brighstone is straightforward for us to reach. We also cover Moortown (1 mile north), Thorncross (1 mile south-east), Shorwell (2 miles east), Little Atherfield (3 miles south-east) and Atherfield Green (3 miles south-east) for service penetrations. Bigger towns within reach include Newport (6 miles north-east), Ryde (12 miles north-east), Cowes (9 miles north-east), Sandown (10 miles east), Shanklin (10 miles east) and Ventnor (9 miles east). Where a site is remote or on an island, we plan travel and materials carefully.
Local landmarks in Brighstone
Recent enquiries here include premises near The Three Bishops pub, among other places. Well-known places in the area include Carisbrooke Castle (4.8 miles north-east) and Whitecroft Hospital (4.7 miles north-east). Open spaces near Brighstone include Brighstone Down.
On site: what to expect
We begin with a short walk round with whoever looks after the building, agreeing which joints are in scope, where to start and what must stay open. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. Smaller jobs around Brighstone can be grouped with others nearby, which keeps travel down. You will have a fixed quote before work starts.
- First we go through the drawings, schedule or specification for the seals 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.
- Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.
Preparing the site
- Make sure the joints can be reached
- Tell us which areas need to stay in use
- Tell staff and tenants when we’ll be in
Quotes
Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to call the office on 01277 525 020 or email drawings and photos with what you know.
Related advice
What affects the price in Brighstone
The price varies from site to site. Expect it to depend on:
- Which sealant the job calls for
- How accessible the joints are
- Phasing around occupants
- Backing rod, priming and other preparation
Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote, and you’ll have a fixed figure to work with.
Before you send an enquiry
Good information means a firmer quote. Helpful details to send:
- Specification clauses that apply
- Clear photographs of the problem areas
- Access details, including height
- The site address and postcode
Photos, drawings or a schedule of the joints are often enough for a fixed quote. Where a site visit makes more sense, we’ll arrange one.