Na h-Eileanan Siar · Scotland
Fire Rated Sealant in Geirinis
Fire rated sealant for Geirinis, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Gaps flagged on a fire risk assessment
- Holes left by a change of layout
- Unsealed gaps around fire door frames
Keeping the joints in good condition
Good habits help new joints last longer. A few tips:
- Never patch a fire seal with standard sealant
- Make resealing part of every contractor’s brief
- File the fire-stopping record where your assessor can find it
- Include fire stopping when you schedule refits
Leave the sealant to cure fully before painting near it. Some fire-rated sealants can be painted and some cannot and we will tell you which one you have.
Small gaps around services are simple to deal with while there are only a few. Leave them and each new job adds another hole and the list grows.
Fire rated sealant in Geirinis
We often work from an action list drawn up by a fire risk assessor. Send us the list or the survey and we will quote for the fire-rated sealant work on it. We are often asked to deal with fire stopping disturbed by later work and open joints along the top of partitions, on door frames, service penetrations and linear gaps.
Work in a place like Geirinis is planned ahead, journey included, so it can be fitted around bookings or opening times where possible.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Location
- Geirinis (HS8)
- Wider area
- Na h-Eileanan Siar
- Guarantee
- One year on every job
- Quotes
- A clear price before we start
- info@mrmastic.co.uk
- Page updated
- 26 October 2026

DIY versus a professional finish
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Geirinis: your questions answered
Are the rules for fire-rated sealant different in Scotland?
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’s how we fit it. We don’t certify buildings or carry out fire risk assessments, so your fire risk assessor or building control will advise on what’s needed.
Is Geirinis within the area you cover?
Yes, we do. Our work covers the whole of Scotland, islands included, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Will the old sealant be removed?
Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Can new sealant go over the old?
No. Fresh sealant doesn’t stick to old sealant, and it traps any mould or water underneath. It all has to come out first.
Is it worth trying it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it does not work out, we can redo it.
Can I use normal mastic around a pipe through a fire wall?
No. Ordinary silicone, caulk or foam isn’t tested as fire stopping. We cut it out and reseal with a fire-rated product.
Can you match the sealant colour?
We’ll suggest a colour to suit the surroundings, from white and clear to greys and other shades. The product needed can limit the range.
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. Tell us how the building is used and we will plan around it.
The process
When we arrive, we look over the joints with you first, so you know exactly what we’re doing. We protect the surfaces around the joints before we start. The work usually takes a few hours for a handful of gaps, and longer for a whole building. For a place like Geirinis, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- We go through the gaps on your list or survey and check each one’s size and substrate.
- Anything that isn’t fit for the job comes out, and the gap is cleaned.
- We put in whatever backing or fill the product detail specifies.
- We apply the fire-rated or intumescent sealant to the specified depth and tool it.
- Finally, we list where we worked and what we used, for your records.
How to prepare
- Mention any tricky access
- Mention any sign-in or site rules at work premises
- Let us know about parking restrictions
Ask for a quote
Asking for a quote is easy: tell us what needs doing and where. Photos by email help us understand the job.
Advice
What happens if it’s left?
Items left open on a fire risk assessment tend to come back at the next review. Having them sealed and recorded now means you can show the action was taken. In a place like Geirinis, small leaks are easy to put off, but water through a failed joint keeps working away until it’s fixed.
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.
What you get with us
- 20+ years of sealant experience
- Any old sealant cut out fully, not covered over
- Homes, businesses and hotels
- Anti-fungal sanitary silicone in wet areas
What we cannot put right
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Certifying a building or signing off its fire safety
- Assessing a building’s fire safety
- Doors that are not fire doors in the first place
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we will tell you honestly before booking.
Surfaces we seal
- Door frames
- Linear gaps
- Service penetrations
- Pipe & cable gaps
- Flats & HMOs
- Plasterboard & masonry
Work for landlords, hotels and businesses
If you manage several properties in or around Geirinis, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
Commercial buildings in Geirinis
For seaside hotels, guest houses and holiday lets around Geirinis, heavy use in the busy months is hard on washroom and kitchen sealant, and any building work there should leave fire-rated joints made good. 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, though we don’t certify buildings or do fire risk assessments.
In and around Geirinis, as anywhere, good fire rated sealant starts with a clean, dry, properly prepared joint. Whether the job is in Geirinis itself or nearby, the right material for each joint matters as much as a neat finish.
Geirinis (Gaelic: Gerinish) is in Na h-Eileanan Siar. Our applicators cover fire rated sealant for homes and businesses in Geirinis and nearby. Our Na h-Eileanan Siar coverage runs to 87 places, Geirinis among them.
We cover every part of the HS8 postcode area for fire rated sealant. If you need fire rated sealant at a property on Cille Bha'nain and Dun Mor or anywhere close by, we can help. Neighbouring places we cover for fire rated sealant include Creag Ghoraidh (4 miles north), Grimsay (5 miles north-east), Balivanich (8 miles north), Baile a' Mhanaich (8 miles north) and Dalabrog (13 miles south). Remote and island addresses need a little more planning, so please mention your location when you email us at info@mrmastic.co.uk.
What’s near Geirinis
The countryside around Geirinis includes Loch Bee and Ben Tarbert.
Quotes for fire rated sealant in Geirinis
We quote each job individually. These are the things that affect it:
- Mould in or behind the old joints
- Whether old sealant or filler has to be cut out
- Which sealant suits the joint
- The amount of work
What it costs depends on the size of the job, how much old material has to come out and how easy the joints are to reach. We give a clear quote before work begins.
Helping us quote
You do not need to know the technical terms. Just tell us:
- Where the job is, and your postcode
- The type of property
- Any previous sealing or DIY work
- Any access issues, like height or stairs
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email pictures if that’s easy.
