Highland · Scotland
Altnaharra Fire Rated Sealant
Intumescent and fire-rated sealant around gaps, frames and service penetrations for householders, landlords and businesses in Altnaharra. Fully insured, ARBOMaster approved and guaranteed for a year.
- Fire stopping disturbed by later work
- Linear gaps at the head of walls
- Cracked or shrunken fire-rated sealant
How we handle fire rated sealant in Altnaharra
In flats, HMOs, offices and schools, fire stopping is often disturbed by later work. A new cable run or a replaced pipe can leave an open hole behind. Those are the gaps we close, using a tested fire-rated product. If you have standard silicone or caulk in a fire-stopping gap and old fire sealant that has split or come away, we can help, whatever the surface.
For holiday lets, guest houses and community buildings in or near Altnaharra, the washrooms and kitchens need the same care as any city building, and fire-rated joints should be kept in good order.
We stand behind the work with a 12-month guarantee, so you’re not left on your own once the job is done.
- Place
- Altnaharra (IV27)
- Wider area
- Highland
- Guarantee
- A year, on every job
- Quotes
- A clear price before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026

What affects the cost of fire rated sealant
You’ll get a clear quote before we start. It takes into account:
- Whether old sealant or filler has to be cut out
- How many rooms, windows or areas are involved
- The amount of work
- How easy the joints are to reach
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
What we need to know
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- How we’d reach the joints
- Roughly how big the job is
- The problem you’ve noticed
- Whether it has been sealed before
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. A few photos by email make the job easier to understand.
Looking after it afterwards
A little care helps the new joints last. Our advice:
- Never patch a fire seal with standard sealant
- Look in service cupboards and ceiling voids from time to time
- Photograph sealed gaps before they’re covered up
- Don’t paint over fire sealant until it has cured
Leave the sealant to cure fully before painting near it. Some fire-rated sealants can be painted and some cannot.
A gap left open in a fire-resisting wall or floor lets smoke spread in ways the building wasn’t designed for. Sealing it early is a simple step to take.
Altnaharra questions
Do you cover smaller places like Altnaharra?
Yes, Altnaharra is covered. Our work covers the whole of Scotland, from towns to the smallest places. Longer journeys are simply planned in advance.
Do Scottish building rules affect fire-rated sealant work in Altnaharra?
Scotland has its own building regulations, the Building (Scotland) Regulations, with their own technical handbooks. Whatever the rules, fire-rated sealant has to be installed to the manufacturer’s tested details, and that is how we fit it. We do not certify buildings or do fire risk assessments; your assessor or building control can tell you what’s required.
Is it messy?
We keep the work tidy. Nearby surfaces are protected.
How long does the job take?
A typical job takes anything from a few hours to several days, depending on how many gaps there are, including preparation and clearing up. We will confirm how long when we quote.
Can you do several jobs on one visit?
Yes, and it often makes sense. Doing several areas at once is normally more efficient.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Do I have to be there?
We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We will tell you what we are using and why.
Workplaces and buildings in Altnaharra
In Scotland, building work comes under the Building (Scotland) Regulations and their technical handbooks. Fire-rated sealant is installed to the manufacturer’s tested details; we don’t certify buildings or carry out fire risk assessments.
For jobs in and around Altnaharra, choosing the right material for each joint is as important as a tidy finish. Around Altnaharra, as everywhere, fire rated sealant is only as good as the preparation behind it.
Altnaharra is about 39 miles south-west of Thurso, in Highland. We provide fire rated sealant to homes and businesses in Altnaharra and nearby. Our area takes in 253 places across Highland, large and small.
Postcode districts we cover here for fire rated sealant: IV27. We also cover 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). Remote and island addresses need a little more planning, so please mention your location when you send an email to info@mrmastic.co.uk.
Landmarks near Altnaharra
The countryside around Altnaharra includes Loch Eileanach and Meall an Fhuarain.
Should I try it myself first?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
If you’ve already had a go yourself, that’s fine. We cut it out and start again.
What happens if it’s left?
Leaving a gap until a refurbishment comes round can mean years with it open. On its own, sealing it now is a small job. Out of town in Scotland, exposed walls take a lot of weather, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
The cost depends on the size of the job, how much old material has to come out and access to the work. You’ll have a clear quote before any work starts.
Why us?
- A 12-month guarantee on all work
- Neat joints and a tidy finish
- ARBOMaster approved applicator
- Experience in homes, commercial sites and hotels
Read how sealant jobs are priced or our reviews.
When it is not the sealant
New sealant cannot fix everything, and we’d rather say so up front. Sealant won’t put right:
- Certifying a building or signing off its fire safety
- Assessing a building’s fire safety
- Large holes that need a different fire-stopping system
Not sure which it is? You can send an email to info@mrmastic.co.uk and we’ll tell you honestly.
Joints and surfaces we work on
- Pipe & cable gaps
- Flats & HMOs
- Plasterboard & masonry
- Door frames
- Service penetrations
- Linear gaps
How the visit works
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and tidy away. Most jobs take anything from a few hours to several days, depending on how many gaps there are. Around Altnaharra, distance and access matter more than parking. Let us know how to find you and how to reach the joints.
- Before starting, we go through the specification or action list with you.
- We measure every gap and note what it’s in and what passes through.
- Any non-fire-rated filler is removed and the gap cleaned.
- The specified fire-rated sealant goes in over any backing its detail requires.
- We hand over a list of locations and products for your files.
Before we arrive
- Let us know about earlier repairs to the joints
- Mention any sign-in or site rules at work premises
- Mention any parking rules near the property
Get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Read more
Different surfaces, different methods
Service penetrations
A copper pipe, a cable and a plastic pipe can all need different fire-stopping details. We follow the manufacturer’s tested detail for each.
Linear gaps
Head-of-wall gaps are often hidden above suspended ceilings. We work along the whole run leaving no stretch unsealed.
