Highland · Scotland
Fire Rated Sealant in Colbost
Fire rated sealant for Colbost and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Open holes round services passing through fire walls
- Gaps where walls meet ceilings or slabs
- Gaps flagged on a fire risk assessment
Fire rated sealant for homes and businesses in Colbost
Until it’s heated, intumescent sealant behaves like an ordinary sealant; then it swells to help close the gap. Which product suits a gap depends on its width, the materials either side and what runs through it. We work on service penetrations, flats & HMOs and linear gaps, and common reasons people get in touch are seals cut through by electricians, plumbers or data installers and door frames with gaps between frame and wall.
Work in a place like Colbost is planned ahead, journey included, so it can be fitted around bookings or opening times where possible.
The work is covered for a year after we finish. If anything isn’t right with it, drop us a line at info@mrmastic.co.uk.
- Where
- Colbost (IV55)
- Wider area
- Highland
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026

What the job involves on each surface
Masonry and concrete
Holes through concrete and block are rarely neat. We measure the gap at its widest point to make sure it suits the product.
Service penetrations
New gaps tend to show up where services have been added. We clean out what’s there and reseal to the right depth over any backing the detail calls for.
Should I try it myself first?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
What happens on the day
There’s no need to move everything out before we come, only the area right around the joints. We protect the rest, and the work takes a few hours for a handful of gaps, and longer for a whole building for a typical job. Outdoor work around Colbost depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Work indoors is not affected.
- 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.
- Unsuitable material such as ordinary foam or silicone is cut out and the faces 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 records.
Getting ready for the visit
- Let us know about stairs, lifts or work at height
- Mention any leaks or damp you’ve noticed
- Clear the area around the work
Get a quote
To get a quote, send an email to info@mrmastic.co.uk and tell us where the job is and what the problem looks like. We’ll send you a clear quote before any work starts.
Advice
How to look after the new joints
Joint life depends on how it’s used and looked after. We suggest:
- Report cracked or damaged seals as soon as you notice them
- Ask every contractor to reseal any fire stopping they disturb
- Look in service cupboards and ceiling voids from time to time
- Store the list of sealed gaps with your building paperwork
Follow the cure time we give you before decorating over the sealant. Not every fire-rated sealant takes paint and we’ll tell you which one you have.
An open gap isn’t only a fire issue: noise, draughts and even pests can come through too. Dealing with them early helps with all of these.
What fire rated sealant looks like in Colbost
If you run a hotel, guest house or holiday let in a coastal place like Colbost, busy months put washrooms and kitchens under pressure, so it’s worth checking the sealant before the busiest weeks. Scotland has its own building regulations, the Building (Scotland) Regulations, with technical handbooks. Fire-rated sealant is installed to the manufacturer’s tested details; we do not certify buildings or carry out fire risk assessments.
Whether the job is in Colbost itself or nearby, the right material for each joint matters as much as a neat finish.
Colbost (Gaelic: Cealabost) is in Highland. Homes, rented property, offices and hotels in Colbost can book us for fire rated sealant, old or new, large or small. Every job comes with our one-year guarantee. Colbost is one of 253 towns and villages in Highland where we work.
Here we cover the IV55 postcode area for fire rated sealant. Main roads around Colbost include the B884, so getting to you is simple. Nearby, we also carry out fire rated sealant in Kilmuir (2 miles east), Dunvegan (3 miles east), Lonmore (3 miles east), An t-Aodann Ban (8 miles east) and Clachamish (11 miles east). Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.
Near you in Colbost
Nearby you will also find Dunvegan Castle (1.9 miles east) and Colbost Croft Museum (under half a mile north-west). For a walk, there’s Healabhal Mhòr and Loch Druim a' Chaoil.
Questions from Colbost
Do Scottish building rules affect fire-rated sealant work in Colbost?
Scotland has its own building regulations, the Building (Scotland) Regulations, with their own technical handbooks. Fire-rated sealant has to go in to the product’s tested details, and we follow them. We don’t certify buildings or do fire risk assessments; your assessor or building control can tell you what’s required.
Is Colbost in your area for fire rated sealant?
Yes. We work across all of Scotland, and Colbost is part of that. Just drop us a line at info@mrmastic.co.uk with a few details of the job.
Do the sealants smell?
Some sealants have a smell while they cure, which fades as it sets. Opening a window helps.
How do I get a quote for fire rated sealant in Colbost?
It depends on the job, so we quote each one individually. To get one, drop us a line at info@mrmastic.co.uk and tell us what needs doing and where.
Is intumescent sealant the same as fire-rated sealant?
Intumescent means it swells when heated. It’s one type of fire-rated sealant; which product suits depends on the gap, the substrate and the service.
What fire rating will the seal have?
We don’t certify fire stopping or quote ratings. Our part is installing the specified product to its tested details and list the locations and products for you.
Do you work in flats, HMOs and commercial buildings?
Yes, whether the building is a school, an office, flats or an HMO, and whether it’s in use or not. Let us know the building’s hours and we will plan the work to suit.
Are you insured?
Yes. We are fully insured, and we can confirm the details when we quote.
Why it’s worth doing now in Colbost
Doing it once, properly, beats doing it twice. If the details weren’t followed, the seal may need redoing once someone inspects it. Out of town in Scotland, exposed walls take a lot of weather, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we will go through it with you.
Why choose Mr Mastic in Colbost
- An ARBOMaster approved applicator
- Over 20 years’ experience
- Every job guaranteed for a year
- Neat joints and a tidy finish
Read our cost guide or our reviews.
Signs you need fire rated sealant in Colbost
If the sealant is too shallow, has the wrong backing or sits on a dusty surface, it isn’t installed as tested. Rushed fire stopping is common.
It’s worth asking for a quote if you see:
- Open holes round services passing through fire walls
- Standard silicone or caulk in a fire-stopping gap
- New service routes left unsealed after building work
- Open gaps behind door architraves
In and around Colbost, as anywhere, good fire rated sealant starts with a clean, dry, properly prepared joint.
Before you book anyone
- How the joint is cleaned and prepared
- Whether they seal over old material or remove it
- Whether VAT is included
- What the cure time is
Towns and villages near Colbost
More services for Colbost
Honest limits
In fairness, there are a few things sealant won’t fix:
- Fire doors that need new seals, closers or hardware
- A wall that is not a fire-resisting element to begin with
- Openings too large for sealant, which need batts, boards or another system
If you are not sure, just drop us a line at info@mrmastic.co.uk and we’ll give you a straight answer.
Joints and surfaces we work on
- Door frames
- Linear gaps
- Flats & HMOs
- Service penetrations
- Pipe & cable gaps
- Plasterboard & masonry
