South Lanarkshire · Scotland
Fire-rated sealant in Thankerton, South Lanarkshire
Fire rated sealant in Thankerton from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Old fire sealant that has split or come away
- Fire stopping disturbed by later work
- Sealant items on a fire risk assessment action list
How we handle fire rated sealant in Thankerton
Intumescent sealant looks much like any other sealant until it gets hot; 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 pipe & cable gaps, and common reasons people get in touch are old fire sealant that has split or come away and sealant items on a fire risk assessment action list.
Commercial work around smaller Scottish places tends to mean hotels, guest houses, schools and halls rather than offices. All of them have washrooms, kitchens and fire-rated joints that need looking after.
Whatever the size of the job, you get the same one-year guarantee in Thankerton and across South Lanarkshire.
- Where
- Thankerton (ML12)
- Region
- South Lanarkshire
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Leave it or put it right?
Fire-rated sealants are less forgiving than ordinary ones. Depth, backing and surface preparation all affect how a seal performs, so we follow the maker’s details on every gap. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water behind a failed seal does the most damage when nobody’s watching.
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please drop us a line at info@mrmastic.co.uk.
Why choose Mr Mastic in Thankerton
- Fully insured
- Quality sealants from Arbo and Everbuild
- A 12-month guarantee on all work
- Old sealant always removed completely
See our cost guide or what customers say.
What the job involves on each surface
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, and tell you if sealant alone isn’t the right fix.
Flats and HMOs
In occupied buildings, we plan the order of work with you. Access to flats and common areas is agreed in advance so residents know what to expect.
What affects the cost of fire rated sealant
We quote each job individually. This is what makes a difference:
- Any working-time requirements on site
- The old material and how stubborn it is
- How many areas need sealing
- The size of the job
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
What to tell us for a quote
Photos help, but a description is a good start. Try to tell us:
- The rough size of the job
- Access, such as stairs, a lift or height
- A few pictures by email, if you can
- What the problem is, such as mould, gaps, leaks or cracking
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we’ll talk you through the work before giving you a price.
Common problems we fix in Thankerton
Gaps also open up as buildings move: a seal that cracks or pulls away leaves a path for smoke. Damage from cleaning, knocks and maintenance adds to it.
Signs it’s time to call us include:
- Open holes round services passing through fire walls
- Old fire sealant that has split or come away
- Damaged fire sealant left by other trades
- Gaps where walls meet ceilings or slabs
If you let a flat or house near Carstairs station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
What to look for in a quote
- Whether the sealant suits the joint
- Who does the work, and how experienced they are
- Whether they’re fully insured
- How hidden problems are handled
Keeping the joints in good condition
Looking after new joints is easy:
- Include hidden areas like risers in routine checks
- Get damaged fire seals looked at promptly
- Do not fill fire-stopping gaps with ordinary foam or silicone
- Check whether a sealant can be painted before decorating over it
Leave the sealant to cure fully before painting near it. Not every fire-rated sealant takes paint and we will tell you which one you have.
A flagged gap shouldn’t wait for the next assessment. Get it sealed and recorded so you can show it was dealt with.
Commercial buildings in Thankerton
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 don’t certify buildings or carry out fire risk assessments.
If you look after a church, hall or community building such as Covington Parish Church, older buildings that have had new heating or wiring often have service gaps worth checking.
Thankerton is about 11 miles south-east of Carluke, in South Lanarkshire. Jobs in Thankerton get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Across South Lanarkshire, we cover 139 places, Thankerton among them. Edinburgh is on our list too, about 27 miles from Thankerton.
Here we cover the ML12 postcode area for fire rated sealant. Whether your property is on Mill Road, Millands Road and Boat Road or anywhere close by, we can help. Close by, we work in Covington (1 mile north), Pettinain (3 miles north-west), Libberton (3 miles north), Carstairs Junction (5 miles north) and Carnwath (5 miles north). Larger places within reach include Larkhall (15 miles north-west), Carluke (11 miles north-west), Lanark (6 miles north-west), Stonehouse (15 miles west), Lesmahagow (10 miles west) and Law (13 miles north-west).
Near you in Thankerton
For rail, the closest station is Carstairs station, roughly 4.7 miles north. Well-known places in the area include Covington School Museum (0.9 miles north) and Fatlips Castle (2.6 miles south).
When it is not the sealant
A few problems are outside what sealant work can do:
- Construction that does not provide fire resistance on its own
- Issuing a fire rating or certificate for a building
- Openings too large for sealant, which need batts, boards or another system
If you’re not sure, just send an email to info@mrmastic.co.uk and we’ll give you a straight answer.
Where we work in Thankerton
- Door frames
- Flats & HMOs
- Service penetrations
- Linear gaps
- Pipe & cable gaps
- Plasterboard & masonry
How it works
There’s no need to move everything out, only the area right around the joints. Everything nearby is protected, and the job takes a few hours for a handful of gaps, and longer for a whole building for a typical job. Somewhere like Thankerton may be a longer drive, and the journey is planned ahead. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- We begin by agreeing the list of gaps from your assessor’s or designer’s requirements.
- We measure every gap and note what it’s in and what passes through.
- Any non-fire-rated filler is removed.
- The specified fire-rated sealant goes in over any backing its detail requires.
- Every location is recorded with the product used for your records.
Getting ready for the visit
- Clear items away from the joints we’re working on
- For business premises, tell us about site rules or sign-in
- Mention any tricky access
Ask for a quote
We quote each job on its own, so start by telling us what you need. Just drop us a line at info@mrmastic.co.uk with the details.
Advice
Other services in Thankerton
Thankerton questions
Do you cover smaller places like Thankerton?
Yes. Thankerton is within the area we cover, which takes in towns, villages and rural addresses. Our work covers the whole of Scotland. Just mention lanes, gates or anything else about the route when you book.
Can you help a landlord with a rental near Carstairs station?
Yes. We work for landlords and letting agents as well as homeowners. Just email us at info@mrmastic.co.uk with the address and what needs doing, and we will send you a clear quote.
What information do you need?
Only a few details: the address or postcode, what’s wrong and any access issues. Then send an email to info@mrmastic.co.uk.
Do you hold any approvals?
Yes. We are approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
Do you take on fire stopping in schools and offices?
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’ll plan around it.
Are you insured?
Yes. Mr Mastic is fully insured, and we’ve been doing sealant work for more than 20 years.
Can ordinary silicone be used in a fire-stopping gap?
No. Standard sealants aren’t made or tested to stop fire. We cut it out and reseal with a fire-rated product.
Can you fill the gap behind a fire door frame?
Yes. We often seal open gaps hidden behind the architrave. Doors, seals and closers need a door specialist.