Greater London · England
Fire Rated Sealant in Westcombe Park
Fire rated sealant across Westcombe Park and nearby, with old sealant always removed completely and a 12-month guarantee.
- Damaged fire sealant left by other trades
- Open holes round services passing through fire walls
- Joints picked up in a fire-stopping survey
Quotes for fire rated sealant in Westcombe Park
We don’t publish a price list. The quote depends on:
- How easy the joints are to reach
- How many rooms, windows or areas are involved
- Mould in or behind the old joints
- Whether old sealant or filler has to be cut out
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
What to tell us for a quote
When you call or email, these details help:
- Where the job is, and your postcode
- Whether it has been sealed before
- The type of property
- Any access issues, like height or stairs
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work.
Fire rated sealant in Westcombe Park, done properly
A fire seal relies on being installed the way it was tested: the right depth, the right backing and the right product for the substrate. That’s the part we focus on, one gap at a time. We work on service penetrations, plasterboard & masonry and linear gaps, and the jobs we see most are open holes round services passing through fire walls and gaps filled with a product that isn’t fire-rated.
In London, a commercial job often starts with access: loading bays, building rules and lifts. Timings and access are agreed with the building before work starts in Westcombe Park.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Place
- Westcombe Park (SE10, SE7, SE3)
- Wider area
- Greater London
- Guarantee
- A year, on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Also near Westcombe Park
Also in Westcombe Park
Leave it or put it right?
A quick fill with any sealant to hand is not fire stopping. A fire-rated product only performs as tested when it’s installed to its tested detail, which is why we match the product and the method to each gap. Damp from a failed joint spreads quietly in older London brickwork and timber, and by the time it shows on a wall or ceiling in Westcombe Park, the repair is bigger than the sealant job would have been.
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 we start, so you know where you stand.
Why us?
- Any old sealant cut out fully, not covered over
- Quality sealants from Arbo and Everbuild
- ARBOMaster approved applicator
- Every job guaranteed for a year
Take a look at our cost guide or our reviews.
Should I try it myself first?
If you’re 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 does not work out, we can still put it right.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so just mention it when you contact us.
Westcombe Park questions
Is parking a problem for a job in Westcombe Park?
Parking in Westcombe Park, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day run more smoothly, so mention what’s available when you book.
I let a flat near Westcombe Park station. Can you help?
Yes. We work for landlords and letting agents as well as homeowners. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
Do you have insurance?
Yes. Mr Mastic is fully insured, and we’ve been doing sealant work for more than 20 years.
How much does fire rated sealant cost in Westcombe Park?
It depends on the job, so we quote each one individually. For a quick quote, call 0345 464 0079 or email us and let us know what needs doing and where.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator and we’re fully insured too.
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. Let us know the building’s hours and we will plan the work to suit.
Can new sealant go over the old?
No. New silicone won’t bond to old silicone, and it traps any mould or water underneath. We remove it all first.
Will the old sealant be removed?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
How it works
On the day, we start by going over the job with you. We protect the surfaces around the joints before we start. Most jobs take a few hours for a handful of gaps, and longer for a whole building. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. If the building has a concierge, managing agent or access rules, tell us when you book.
- First we work through your list or survey, measuring each gap and checking what it’s formed in.
- Old or unsuitable sealant is cut out and the gap cleaned.
- We put in whatever backing or fill the product detail specifies.
- The sealant goes in to the depth its detail sets, then it’s tooled off.
- Locations and products are noted so you have them on file.
Before we arrive
- For indoor joints, keep the area dry beforehand if you can
- Let us know about parking restrictions
- Move anything stored near the joints
Ask for a quote
If you are in Westcombe Park and need fire rated sealant, ring 0345 464 0079 or email us. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Related advice
Looking after it afterwards
Simple care keeps the joints in good condition. Our advice:
- Keep photos of seals that will be hidden
- Ask every contractor to reseal any fire stopping they disturb
- Keep general-purpose foam and caulk away from fire-stopping gaps
- Flag any open gap you spot round a pipe or cable
Do not drill through or remove a fire seal without putting it back properly. If you need new services through a sealed wall, plan the fire stopping as part of the job.
A flagged gap shouldn’t wait for the next assessment. Get it sealed and recorded so the item can be closed.
Workplaces and buildings in Westcombe Park
Commercial buildings in London often have strict access rules and limited loading, and out-of-hours working is possible to arrange. 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.
Community buildings like St George's Church are part of the picture too: service openings in its walls need the right fire-rated sealant, as in any building. Rented homes near Westcombe Park station change hands often, and fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through. Schools such as Halstow Primary School are buildings too, and service openings in fire-resisting walls need checking after any refurbishment.
Westcombe Park is about 2 miles east of New Cross, in Greater London. Homes, rented property, offices and hotels in Westcombe Park is covered for fire rated sealant. The work is guaranteed for a year. We cover 764 towns and villages across Greater London, large and small.
Postcode districts we cover here for fire rated sealant: SE10, SE7 and SE3. Streets in the area include Webb Road, Horn Lane and Hardy Road, and we cover them all. Neighbouring places we cover for fire rated sealant include Vanbrugh Park Estate (1 mile south-west), Maze Hill (1 mile west), Greenwich (1 mile west), New Charlton (1 mile north-east) and Charlton (1 mile east). Larger places within reach include London (5 miles west), City of Westminster (8 miles west), Marylebone (7 miles west), Kensington (10 miles west), St Pancras (7 miles north-west) and Shoreditch (5 miles north-west).
Around Westcombe Park
We work in homes and buildings around Blackheath High School, Wildwood Montessori School and East Greenwich Pleasaunce. There’s a railway station in Westcombe Park itself: Westcombe Park station. Nearby you’ll also find Greenwich Castle (1 mile south-west) and Charlton Athletic Museum (0.8 miles east). Not far away are Tower Hill and Gilbert's Pit.
What we can’t put right
We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:
- Issuing a fire rating or certificate for a building
- Fire risk assessments, which need a qualified assessor
- Big openings where sealant alone isn’t the tested solution
If in doubt, call 0345 464 0079 or drop us an email and we will say what we think before booking.
Surfaces we seal
- Door frames
- Flats & HMOs
- Service penetrations
- Pipe & cable gaps
- Plasterboard & masonry
- Linear gaps
For landlords and businesses
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
For anyone letting property in or around Westcombe Park, jobs at different addresses can go on one quote. Send us the addresses and the work at each.