
Fire stopping in Altnaharra
Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in Altnaharra and the surrounding area. Send details for a fixed quote.
- Fire-stopping items raised at inspection or handover
- Fire stopping installed outside its tested range
- Fire seals cut back for extra cables and never reinstated
Fire stopping for Altnaharra sites
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Honest limits
We seal joints; we don’t mend everything behind them. On its own, sealant can’t deal with:
- Deciding what a wall or floor needs, which belongs to the designer
- Reviewing a building’s overall fire safety
- Openings that need collars, wraps, batts or boards rather than sealant
If in doubt, speak to us on 01277 525 020 or use the quote form and we will say what we think before you book.
What we seal
- Service gaps in risers
- Pipe penetrations
- Joints between fire-resisting walls and floors
- Small duct penetrations where the tested detail allows
- Linear gaps at wall heads
- Cable penetrations
Fire stopping in Altnaharra, done properly
Most of our fire stopping work happens after the building is up. Each new cable, pipe or data route cut through a fire-resisting wall leaves an opening behind, often unnoticed. We close the openings listed on your schedule, using the specified sealant and detail. We work on linear gaps at wall heads, service gaps in risers and small duct penetrations where the tested detail allows, and what we’re called in for most is fire-rated sealant that has cracked or shrunk back and expanding foam used as fire stopping. Looking for mastic applicators who cover Altnaharra? Mastic Doctor has worked for contractors, FMs and building owners since 2005, with CSCS-carded applicators.
In smaller Scottish places like Altnaharra, buildings with fire-resisting walls typically include schools, care homes, hotels and health centres. Where services pass through, specified fire-rated sealant is installed following the manufacturer’s guidance for that wall or floor.
The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we spell out the cover before we begin.

- Where
- Altnaharra (IV27)
- Wider area
- Highland
- Cover
- 12 months on every job
- Price
- A fixed quote before we start
- Call
- 01277 525 020
- Updated
- 3 November 2026
Work for main contractors and building owners
Main contractors use us as their sealant subcontractor, on new build and refurbishment alike. Programme, specification and site rules come first.
Building owners and managing agents use us on everything from one building to a spread of sites around Altnaharra. One quote can cover more than one site, which keeps the paperwork simple.
Do you need fire stopping in Altnaharra?
Physical damage is another reason seals stop doing their job. Maintenance work can knock a seal, cut it back for an extra cable or remove it with an old pipe, and the repair is often skipped.
Look out for the following:
- Open linear gaps along the top of fire-resisting walls
- Service penetrations left open after M&E works
- Fire-rated sealant that has cracked or shrunk back
- Penetration schedules that need working through
Buildings near Altnaharra get the fire-rated product that’s specified, installed to its tested detail.
What your quote should include
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- How the existing material will be dealt with
- Do they follow the manufacturer’s priming guidance?
- How they’ll work around occupants
Compartments and services around Altnaharra
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 what’s specified, to the product’s tested detail.
For a hotel such as Altnaharra Hotel, under half a mile to the south-east of Altnaharra, penetration seals are worth checking after any refit or services upgrade.
Altnaharra is about 39 miles south-west of Thurso, in Highland. Anywhere in IV27, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. Altnaharra is one of 256 places we cover in Highland.
Anyone looking for fire stopping in IV27 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Close to Altnaharra, our area also takes in Tongue (13 miles north), Melness (17 miles north), An Luirg (18 miles south), Am Blàran Odhar (19 miles north-east) and Innis nan Lìon (21 miles south). Island and remote sites need extra planning, with travel, ferry crossings where needed and weather to allow for, so mention the location when you give us a call on 01277 525 020 or send photos by email.
Around Altnaharra
Open spaces near Altnaharra include Loch Eileanach and Meall an Fhuarain.
How the job changes by surface
Plastic pipes
Plastic pipes soften and collapse in a fire. Small sizes are sometimes covered by an intumescent sealant detail. We check the pipe material and diameter against the detail before we start.
Small ducts
Some fire-rated sealant details cover small ducts. Larger or fire-rated ductwork normally needs a different solution set by the designer, and we will say if that applies.
Towns and villages near Altnaharra
Also in Altnaharra
On site: what to expect
We begin with a short walk round with whoever looks after the building, to confirm the scope, the order of work and any areas we must keep clear. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. Jobs near Altnaharra are often grouped with others in the same area. Let us know if your dates have any give.
- We start with your penetration schedule, drawings or specification.
- Access, permits and the order of areas are agreed with the site team.
- We compare every service penetration with its tested detail before sealing.
- Unsuitable material is removed and the opening cleaned so the seal starts clean.
- The specified backing and sealant go in to depth and are finished neatly.
- We tell you about openings that need a different product.
What we need from you
- Move anything stored against the joints
- Share the asbestos register for older buildings
- Warn occupants and staff about the work
Request a quote
For a fixed quote, speak to us on 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.
Advice
Site staff or a sealant specialist?
Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong usually costs more in the end than doing them right.
Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and we’ll confirm the paperwork you need with the quote.
Questions about Altnaharra
How do the Scottish rules apply to fire-rated sealing in Altnaharra?
The non-domestic Technical Handbook, clause 2.1.14, expects a penetration to keep at least the wall or floor’s fire resistance period, with proprietary products tested for the use they’re put to. Design sits with the designer and the verifier; installation to the tested detail is our part.
Is Altnaharra too small for you to travel to?
Not at all: smaller places are covered as well as towns. Every Scottish council area is within our area. Good photographs up front let us bring everything on the first visit.
Are you CHAS accredited?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member.
Will you quote for a small job?
Single areas, one-off repairs and whole buildings are all quoted the same way: send details, get a fixed quote, we seal, guaranteed.
How long before the joints can be used?
That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, and we confirm it before leaving site.
Is colour matching possible?
It depends on the product. Some ranges offer many colours, others very few, so the available colours are confirmed with the quote.
How do I request a quote?
There are four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. The first step only needs photos and a postcode.