Fife · Scotland
Leslie Fire Rated Sealant
Intumescent and fire-rated sealant around gaps, frames and service penetrations for homes and businesses in Leslie and across Fife. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Sealant items on a fire risk assessment action list
- Cracked or shrunken fire-rated sealant
- Fire stopping disturbed by later work
Fire rated sealant in Leslie
Filling a fire-stopping gap with standard silicone or caulk does not make it fire-rated. We cut out the wrong material and the gap is resealed with a product tested for that use. We work on pipe & cable gaps, plasterboard & masonry and linear gaps, and common reasons people get in touch are door frames with gaps between frame and wall and standard silicone or caulk in a fire-stopping gap.
Work in a place like Leslie is planned ahead, journey included, so it can be fitted around bookings or opening times where possible.
You get a one-year guarantee, the same in Leslie as everywhere else we work.
- Where
- Leslie (KY6)
- Wider area
- Fife
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026

Common questions in Leslie
Do Scottish building rules affect fire-rated sealant work in Leslie?
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 don’t certify buildings or carry out fire risk assessments, so your fire risk assessor or building control will advise on what’s needed.
Do you cover smaller places like Leslie?
Yes, we do. We work across all of Scotland, from towns to the smallest places. Longer journeys are simply planned in advance.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status, and we are fully insured.
Can I do it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
I’m a tenant. Can you help?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
What information do you need?
A short description and the location. We will ask anything else we need to know.
Do the sealants smell?
Possibly a little. Any smell clears as the sealant cures.
Work for landlords, hotels and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll quote.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Places near Leslie
Also in Leslie
Keeping the joints in good condition
Good habits help new joints last longer. A few tips:
- File the fire-stopping record where your assessor can find it
- Get damaged fire seals looked at promptly
- Ask which product was used before you paint
- Plan fire stopping into any work that goes through walls or floors
Keep the record we give you with the building’s fire safety documents. It saves time at the next inspection or assessment.
Small gaps around services are simple to deal with while there are only a few. Over time, more work adds more holes and the list grows.
Workplaces and buildings in Leslie
In Scotland, building work comes under the Building (Scotland) Regulations and their technical handbooks. We install fire-rated sealant to the product’s tested details, though we don’t certify buildings or do fire risk assessments.
If you look after a building such as Glenwood High School, gaps opened by contractors for new cabling are a common finding in schools and offices. Rented homes near Markinch station change hands often, and new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
Leslie is about 2 miles west of Glenrothes, in Fife. Every kind of property in Leslie can book us for fire rated sealant. The work is guaranteed for a year. Our area takes in 133 places across Fife. We also work in Edinburgh, around 18 miles away.
Here we cover the KY6 postcode area for fire rated sealant. Streets in the area include High Street, Douglas Road and Allan Street. Leslie is on the A911, so it’s easy for us to get to. Other places close to Leslie include Macedonia (1 mile south-east), Collydean (1 mile north-east), Glenrothes (2 miles east), Cadham (2 miles east) and Kinglassie (2 miles south-west). Larger places within reach include Dunfermline (12 miles south-west), Kirkcaldy (6 miles south), Leven (8 miles east), Cowdenbeath (8 miles south-west), Dysart (6 miles south-east) and Dalgety Bay (13 miles south-west).
Around Leslie
Typical jobs here are in homes near Riverside Park. For rail, the closest station is Markinch station, about 3.3 miles east. Nearby you’ll also find Glenrothes Hospital (1.3 miles east) and Kingdom Shopping Centre (1.7 miles east). For a walk, there’s East Lomond and Cash Loch.
What sealant work cannot fix
Some problems need a builder, plumber or other trade rather than us:
- Fire doors that need new seals, closers or hardware
- Openings too large for sealant, which need batts, boards or another system
- Walls or floors that weren’t built to resist fire
If you are not sure, just drop us a line at info@mrmastic.co.uk and we will give you a straight answer before you book.
Surfaces we seal
- Door frames
- Flats & HMOs
- Pipe & cable gaps
- Plasterboard & masonry
- Service penetrations
- Linear gaps
The process
When we arrive, we start by going over the job with you, so you know exactly what we are doing. Surfaces next to the work are protected before any work begins. The work normally takes a few hours for a handful of gaps, and longer for a whole building. In smaller Scottish places, parking is normally less of an issue than access and distance. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- We start with the survey or action list, checking the size and surfaces of every gap.
- We remove any old or unsuitable filler and clean the gap.
- Where the tested detail needs backing or fill, we fit it.
- We apply the fire-rated or intumescent sealant to the specified depth and tool it.
- Locations and products are noted so you have them on file.
Before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us if parking is tricky
- Keep pets and children clear of the area while we work
Getting a quote
For fire rated sealant in Leslie, email us at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Related advice
DIY sealant or a professional job?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
What the job involves on each surface
Door frames
Frame gaps are normally hidden behind the architrave. We seal any open gap to the product’s tested details before the trim goes back.
Flats and HMOs
Conversions normally leave a mix of old and new service holes. The gaps on your list are sealed with a fire-rated product and record where they are.
What we are called out for in Leslie
Movement in the structure can open gaps too: a seal that cracks or pulls away leaves a path for smoke. Damage from cleaning, knocks and maintenance adds to it.
Any of these means the joints need attention:
- Door frames with gaps between frame and wall
- Gaps around pipes and cables through fire-resisting walls
- Linear gaps at the head of walls
- Gaps flagged on a fire risk assessment
For buildings such as Trinity Parish Church, older buildings that have had new heating or wiring often have service gaps worth checking.
Questions to ask before you book
- What the cure time is
- How long the guarantee is
- How the joint is cleaned and prepared
- Which colour the sealant will be
