Scottish Borders · Scotland
Fire Rated Sealant in Newtown St Boswells
Specialist fire rated sealant for Newtown St Boswells: careful preparation, the right product and tidy work. Call for a quick quote.
- Fire seals that have cracked with movement
- Holes left by a change of layout
- Fire stopping disturbed by later work
Fire rated sealant in Newtown St Boswells
Intumescent sealant looks much like any other sealant until it gets hot; in a fire it expands into the joint. Which product suits a gap depends on its width, the materials either side and what runs through it. We’re often asked to deal with new service routes left unsealed after building work and gaps filled with a product that isn’t fire-rated, on door frames, linear gaps and flats & HMOs.
In a smaller place like Newtown St Boswells, commercial jobs are more likely to be a hotel, guest house, school, surgery or community hall than an office block. Each needs sound sealant in its washrooms and kitchens, and fire-rated joints kept in good order.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Location
- Newtown St Boswells (TD6)
- Region
- Scottish Borders
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026

Newtown St Boswells: your questions answered
Is Newtown St Boswells within the area you cover?
Yes, Newtown St Boswells is covered. We work across all of Scotland, from towns to the smallest places. Longer journeys are simply planned in advance.
Can you help a landlord with a rental near Tweedbank station?
Yes, we work for letting agents and landlords. Just send an email to info@mrmastic.co.uk and tell us about the property, and we will send you a clear quote.
Do you carry out fire risk assessments?
No, assessment isn’t something we do. When your assessor or designer has set out what’s needed, we can quote for the fire-rated sealant items.
What should I tell you?
A short description and the location, with pictures by email if possible. We’ll ask anything else we need to know.
Will there be a smell?
That depends on the sealant. Some smell for a while, some hardly at all.
Can you tell me how many minutes the seal will last?
Ratings and certificates aren’t something we issue. What’s required is set by your assessor or designer, and the product’s tested details show what it achieves.
Can I choose the sealant colour?
Normally, yes. White, clear and grey are common, and other colours are available for many products, and we agree the colour with you before any work starts.
What do you put in the joint?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
Different surfaces, different methods
Door frames
Behind most architraves is a gap between frame and wall. We seal any open gap to the product’s tested details before the trim goes back.
Masonry and concrete
Core-drilled and broken-out holes in concrete are often irregular. We measure the gap at its widest point to make sure it suits the product.
Fire rated sealant in Newtown St Boswells: local notes
Scotland has its own building regulations, the Building (Scotland) Regulations, with technical handbooks. We install fire-rated sealant to the product’s tested details; we do not certify buildings or carry out fire risk assessments.
Rented homes near Tweedbank station change hands often, and any gap left by new services in shared walls should be closed with a fire-rated product.
Newtown St Boswells is about 6 miles south-east of Galashiels, in the Scottish Borders. Jobs in Newtown St Boswells get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Newtown St Boswells is one of 89 towns and villages in the Scottish Borders where we work. Our Edinburgh page covers work nearby.
All of TD6 is within our area for fire rated sealant. Whether your property is on Park Avenue, Park Crescent and Roxburghe Place or anywhere close by, we can help. We also cover the places around Newtown St Boswells: Bowden (1 mile south-west), St Boswells (1 mile east), Newstead (2 miles north-west), Greycrook (2 miles south-east) and Melrose (2 miles north-west). Within a short drive, we also cover Galashiels (6 miles north-west), Hawick (11 miles south), Kelso (10 miles east), Selkirk (7 miles west), Jedburgh (8 miles south-east) and Wilton (11 miles south-west).
Local landmarks in Newtown St Boswells
Newtown St Boswells’s nearest station is Tweedbank station, about 3.7 miles north-west of the centre. Other landmarks nearby include Castle Holydean (2.5 miles south-west) and Commendators House Museum (2.2 miles north-west). For a walk, there’s Bemersyde Moss and Eildon Hill North.
Keeping the joints in good condition
Simple care keeps the joints in good condition. We recommend:
- Tell trades working in the building that fire seals must be put back
- Don’t fill fire-stopping gaps with ordinary foam or silicone
- Include hidden areas like risers in routine checks
- Include fire stopping when you schedule refits
Include fire stopping in your regular building checks. Watch for cracking, gaps or seals that have been disturbed and have them put right.
Leave a fire-stopping gap open and smoke can move through the building much more easily. Sealing it early is a simple step to take.
Landlords, agents and businesses in Newtown St Boswells
Hotels need rooms back in use, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.
We also work for property managers and facilities teams in Newtown St Boswells and across the Scottish Borders. Several sites can go on one quote, and we are fully insured.
How it works
There is not much for you to do on the day. Point us to the joints and we’ll get on with it. The job generally takes anything from a few hours to several days, depending on how many gaps there are from start to finish. Outdoor work around Newtown St Boswells depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Indoor work goes ahead whatever the weather.
- We start with the survey or action list, checking the size and surfaces of every gap.
- 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
- Tell us if parking is tricky
- Keep children and pets away from the work area
- Move anything stored near the joints
How to get a quote
If you’re in Newtown St Boswells and need fire rated sealant, send an email to info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Advice
Why it’s worth doing now in Newtown St Boswells
Fire-rated sealants are less forgiving than ordinary ones. How it’s installed changes how it performs, and we work to the product details every time. 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.
What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before we start, so you know where you stand.
Why choose Mr Mastic in Newtown St Boswells
- Fully insured
- Quality sealants from Arbo and Everbuild
- Homes, businesses and hotels
- Any old sealant cut out fully, not covered over
Read what affects the cost or customer reviews.
Do you need fire rated sealant in Newtown St Boswells?
Movement in the structure can open gaps too: cracked or debonded sealant leaves an open route through the wall. Damage from cleaning, knocks and maintenance adds to it.
If you can see any of these, it’s time to have the joints looked at:
- Door frames with gaps between frame and wall
- Sealant items on a fire risk assessment action list
- Gaps filled with a product that isn’t fire-rated
- Unsealed gaps where pipes and cables go through a wall
For site and facilities teams at buildings such as Newtown Primary School, service openings in fire-resisting walls need checking after any refurbishment.
Before you book anyone
- What preparation is included
- The length of the guarantee
- Which sealant they’ll use, and why
- How hidden problems are handled
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Fire doors that need new seals, closers or hardware
- Big openings where sealant alone is not the tested solution
- A wall that is not a fire-resisting element to begin with
Not sure which it is? You can email us at info@mrmastic.co.uk and we’ll tell you honestly.
Where we work in Newtown St Boswells
- Pipe & cable gaps
- Flats & HMOs
- Service penetrations
- Linear gaps
- Door frames
- Plasterboard & masonry
