Bàgh a'Chaisteil fire stopping
Fire-rated and intumescent sealing of service penetrations and linear gaps in Bàgh a'Chaisteil and across Na h-Eileanan Siar. CHAS accredited and fully insured, with a 12-month guarantee.
- Fire-rated sealant that has cracked or shrunk back
- Openings found when ceilings come down for a refit
- Builders’ foam or ordinary silicone in compartment walls
Fire stopping near Bàgh a'Chaisteil
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Fire stopping in Bàgh a'Chaisteil, done properly
We are commercial sealant applicators, CHAS accredited and a Constructionline member, with CSCS-carded applicators on site. We don’t hold a third-party fire-stopping installer certificate and we’d rather say that up front. We install the specified fire-rated sealant to its tested detail, and our workmanship carries a 12-month guarantee. If you are dealing with improvised or mixed-product fire seals and fire sealant pulled out of the opening, we can help. For commercial sealant work in Bàgh a'Chaisteil, you deal with one contact from quote to sign-off, whether it’s one building or several.
Hotels and care homes around smaller places like Bàgh a'Chaisteil often have services added during refurbishment. We fit the specified fire-rated sealant as its published detail shows and raise it if another product is needed.
The 12-month guarantee covers our workmanship: preparation, application and finish. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Place
- Bàgh a'Chaisteil (HS9)
- Region
- Na h-Eileanan Siar
- Guarantee
- A 12-month guarantee
- Quote
- Quoted before any work starts
- Call
- 01277 525 020
- Updated
- 3 November 2026
Owners, agents and contractors
Main contractors use us as their sealant subcontractor, on new build and refurbishment alike. Programme, specification and site rules come first.
Agents, factors and owners’ representatives all follow the same route: send details, get a fixed quote, we seal, guaranteed. We can agree access arrangements and keyholder contacts beforehand.
Site staff or a sealant specialist?
For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class.
Some joints are best left to specialists: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.
Your questions answered
Can you seal around new services in a hotel near Bàgh a'Chaisteil?
Yes, where the specification calls for fire-rated sealant. We match the product to the wall or floor and the services, and say if something other than sealant is needed.
Do you work on the island where Bàgh a'Chaisteil is?
Yes. Islands are part of our area, Bàgh a'Chaisteil included. Island work is planned around ferry crossings and the weather, so photographs and a full list before we travel are essential.
Do you have public liability insurance?
Yes. Mastic Doctor is fully insured, public liability included.
Is any job too small?
Whatever the size, the process is the same: send details, get a fixed quote, we seal, guaranteed.
Can staff carry on working while you are here?
Yes, as long as we plan it. Tell us your site hours and access windows and we’ll plan around them.
What happens if old sealant might contain asbestos?
Asbestos is possible in some older mastics, particularly in buildings from before 2000. We check the asbestos register before cutting out old sealant in an older building, and work stops until any suspect material has been tested. Removing asbestos is a job for asbestos specialists, not us.
Who decides which product is used?
A specification, where there is one, decides it. If there isn’t one, it comes down to the joint: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.
Compartments and services around Bàgh a'Chaisteil
Scotland has its own building standards: the non-domestic Technical Handbook (clause 2.1.14) says service penetrations should be fire stopped to at least the fire resistance duration of the wall or floor, and products should be tested for their end use. We install fire-rated sealant to that tested detail where it is specified. Island jobs, Bàgh a'Chaisteil among them, are planned around the ferry and the forecast. The specification and photographs of each penetration let us bring the right products first time.
In a building such as Church of our Lady, any service penetration through a fire-resisting wall should be sealed to the specified detail. In a school such as Castlebay Community School, fire-rated sealant goes in around service penetrations where it is specified.
Bàgh a'Chaisteil (Gaelic: Castlebay) is in Na h-Eileanan Siar. Across the HS9 postcode area, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. Our Na h-Eileanan Siar coverage takes in 87 places, large and small.
We take on service penetrations across the HS9 postcode area. Streets here include The Square, Rathad na Horgh and Maol Domhnaich. If your building is just outside Bàgh a'Chaisteil, we cover Castlebay (1 mile east), Ceann Tangabhal (1 mile north-west), Leideag (1 mile east), Brèibhig (2 miles east) and Cuidhir (3 miles north). Bàgh a'Chaisteil ranks among the main centres of Na h-Eileanan Siar, with offices, shops, schools and other public and commercial buildings. Remote and island addresses take more planning, from travel and ferries to the weather, so mention the location when you phone 01277 525 020 or email us.
Around Bàgh a'Chaisteil
Nearby you will also find St Brendan's Hospital (less than half a mile south) and Barra Heritage & Cultural Centre (less than half a mile east). Green spaces nearby include Ben Leribreck.
Diagnose, treat, sign off
In a busy building, the work is phased so only one area is out of use at a time. Each area is protected, prepared and sealed before we move to the next. Where we can, we combine work around Bàgh a'Chaisteil with other jobs nearby, to make the most of each trip. Tell us how flexible your dates are.
- First we go through the drawings, schedule or specification for the seals and ask about anything unclear.
- On site, each opening is checked against the tested detail it is meant to follow.
- 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.
- We apply the specified sealant to the depth and around the services as the detail shows.
- If an opening needs something other than sealant, we tell you instead of improvising.
Preparing the site
- Agree which areas must stay open
- Send any specification or drawings in advance
- Tell us your opening times and when work is allowed
Ask for a quote
Every quote starts with the facts: 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.
Advice
Towns and villages near Bàgh a'Chaisteil
Other services in Bàgh a'Chaisteil
Do you need fire stopping in Bàgh a'Chaisteil?
Fire stopping can get squeezed at the end of a programme, or done by whoever is on site. That is when untested combinations creep in, which then have to be put right.
Any of the following is a good reason to get the joints checked over:
- Fire stopping installed outside its tested range
- Seals disturbed by maintenance and left open
- Head-of-wall gaps with no fire seal
- Openings left by services added after handover
In a hotel such as Castlebay Hotel (less than half a mile east of Bàgh a'Chaisteil), new pipework or cabling through bedroom and corridor walls needs sealing with the specified product.
Questions to ask before you book
- Who will actually carry out the work
- The terms of the workmanship guarantee
- Their approach to joint depth and backing
- Will failed sealant be removed rather than covered?
What we can’t put right
Being straight saves everyone time. Fresh joints won’t solve:
- Issuing fire ratings or certificates for seals
- Plastic pipes whose detail calls for a collar or wrap
- Writing the fire-stopping specification
If in doubt, call the office on 01277 525 020 or send photos by email and we will say what we think.
Surfaces we seal
- Service gaps in risers
- Joints between fire-resisting walls and floors
- Pipe penetrations
- Small duct penetrations where the tested detail allows
- Cable penetrations
- Linear gaps at wall heads
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, and the right detail can be checked at the time. Buildings that aren’t in daily use, such as halls and seasonal premises, may let water in unnoticed, so a failed joint has time to cause damage. Resealing early avoids that.
Pricing service penetrations depends on how many there are, their condition and the access, plus any specification you’re working to. Ask us for a fixed quote.
Why clients in Bàgh a'Chaisteil choose us
- CSCS-carded applicators
- Products installed to the manufacturer’s instructions
- 12 months’ guarantee on every job
- Sealing commercial buildings since 2005
Read what affects the cost and our accreditations and insurance.