Surrey · England
Fire Rated Sealant in Stoneleigh
Intumescent and fire-rated sealant around gaps, frames and service penetrations for homes and businesses in Stoneleigh and across Surrey. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Gaps filled with a product that isn’t fire-rated
- Fire stopping disturbed by later work
- Cracked or shrunken fire-rated sealant
Keeping the joints in good condition
Simple care keeps the joints in good condition. Our advice:
- Include hidden areas like risers in routine checks
- Store the list of sealed gaps with your building paperwork
- Include fire stopping when you schedule refits
- Keep pictures of seals that will be hidden
Keep the record we give you with the building’s fire safety documents. It helps whoever checks the building next.
Open gaps don’t only matter in a fire: noise, draughts and even pests can come through too. Sealing them early helps on every front.
About our fire rated sealant in Stoneleigh
Until it’s heated, intumescent sealant behaves like an ordinary sealant; in a fire it expands into the joint. The right product depends on the gap size, the substrate and what passes through, so we follow the tested detail for each one. If you’re dealing with unsealed gaps where pipes and cables go through a wall and joints picked up in a fire-stopping survey, we can put it right, on linear gaps, service penetrations and pipe & cable gaps alike.
If you run a pub, café, guest house or shop in or near Stoneleigh, the washrooms and kitchen need the same attention as a big site, and fire-rated sealant around service openings should be restored after new pipes or cables go through.
Big or small, you get the same 12-month guarantee in Stoneleigh and across Surrey.
- Place
- Stoneleigh (KT17, KT19, KT4)
- Region
- Surrey
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026

Common problems we fix in Stoneleigh
Gaps also open up as buildings move: a seal that cracks or pulls away leaves a path for smoke. Knocks, maintenance and building work damage it further.
These are the problems we’re asked about most:
- New service routes left unsealed after building work
- Fire seals that have cracked with movement
- Damaged fire sealant left by other trades
- Open holes round services passing through fire walls
Managing a site like Auriol Junior School? Then service openings in fire-resisting walls need checking after any refurbishment.
What your quote should include
- Is the old sealant removed completely?
- What the quote includes, VAT included or not
- What guarantee comes with the work
- How the surfaces are prepared before sealing
When it is not the sealant
We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:
- Large holes that need a different fire-stopping system
- Construction that doesn’t provide fire resistance on its own
- Doors that are not fire doors in the first place
If you’re not sure, just call 0345 464 0079 or email us and we will give you a straight answer.
Joints and surfaces we work on
- Flats & HMOs
- Service penetrations
- Door frames
- Pipe & cable gaps
- Plasterboard & masonry
- Linear gaps
Questions from Stoneleigh
Do you cover smaller places like Stoneleigh?
Yes, Stoneleigh is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you do fire rated sealant in Stoneleigh?
Yes, Stoneleigh is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear quote.
Can you do several jobs on one visit?
Yes. Just list everything you need and you will get one quote.
Do you guarantee your work?
Yes. Every job comes with our 12-month guarantee.
Are you ARBOMaster approved?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Can I use normal mastic around a pipe through a fire wall?
No. A gap that needs fire stopping needs a tested fire-rated product fitted to the maker’s details.
Where do you work from?
Mr Mastic is based in Crawley. We cover Stoneleigh and the rest of Surrey, along with the rest of our area.
Can you give us a record of the work?
Yes. You get a list of where we worked and what we used to keep with your fire safety documents.
Can I do it myself?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Nearby places to Stoneleigh
More services for Stoneleigh
Workplaces and buildings in Stoneleigh
Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, and gaps around services are often picked up there. We work to the specification you’re given, installing the product to its tested details.
For buildings such as The Parish Church of St John the Baptist, gaps around pipes and cables are worth checking after any building work there. If you let a flat or house near Stoneleigh station, fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through.
Stoneleigh is about 1 mile north-east of Ewell, in Surrey. Wherever you are in the KT17 postcode area, our applicators can take on fire rated sealant. Across Surrey, we cover 395 places, and Stoneleigh is one of them. Our London page covers work nearby, about 11 miles away.
All of KT17, KT19 and KT4 is covered for fire rated sealant, from the main roads to the quietest streets. Whether your property is on London Road, Station Approach and Stoneleigh Park Road or anywhere close by, our applicators can take on the job. If you are just outside Stoneleigh, we cover Ewell (1 mile south-west), Worcester Park (1 mile north-west), Cuddington (1 mile south-east), Old Malden (1 mile north-west) and North Cheam (1 mile north-east). Within a short drive, we also cover Woking (14 miles west), Horley (13 miles south), Redhill (9 miles south), Egham (14 miles west), Reigate (9 miles south) and Walton-on-Thames (7 miles west).
Near you in Stoneleigh
In Stoneleigh, that means homes and buildings near Hogsmill LNR, The Station pub and Ewell Castle School, among other places. There’s a railway station in Stoneleigh itself: Stoneleigh station. A little further out are Cockney Museum (within half a mile south-east) and Chessington Castle Hill (1.9 miles west). Not far away are Kingston Hill Road area and The Lake.
Leave it or put it right?
Sealant is not the fix for every opening. Large holes, cable bundles and plastic pipes can call for batts, collars or wraps. If a gap isn’t suitable for sealant, we will tell you. In a smaller place like Stoneleigh, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why us?
- Approved under the ARBOMaster scheme
- Every job guaranteed for a year
- Fully insured
- We never seal over old sealant
Read how sealant jobs are priced and customer reviews.
Work for landlords, hotels and businesses
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
How the visit works
Most of a good job is in the preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it usually takes anything from a few hours to several days, depending on how many gaps there are. In a smaller place like Stoneleigh, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- We start with the survey or action list, checking the size and surfaces of every gap.
- Old or unsuitable sealant is cut out and the gap 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.
- We record the locations and products used for your records.
Before we arrive
- For indoor joints, keep the area dry beforehand if you can
- On commercial sites, let us know about site rules
- Let us know about earlier repairs to the joints
Getting a quote
For fire rated sealant in Stoneleigh, phone 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
