Greater London · England
Fire Rated Sealant in Ashburton
Fire-stopping gaps in Ashburton need attention? We cut out the old, prepare the joints and apply the right sealant.
- Linear gaps at the head of walls
- Ordinary sealant used where a fire-rated product was needed
- Damaged fire sealant left by other trades
Surface by surface
Door frames
Behind most architraves is a gap between frame and wall. Where it’s open, we seal it to the product’s details for that gap size so the architrave can be refitted.
Masonry and concrete
For masonry and concrete, we use a product tested in that substrate. We clean out dust and debris before sealing so the seal has something sound to bond to.
Fire rated sealant in Ashburton
Ordinary silicone or decorators’ caulk in a fire-stopping gap isn’t a fire-rated seal. We cut out the wrong material and reseal with a fire-rated product tested for that kind of gap. We work on service penetrations, linear gaps and pipe & cable gaps, and the jobs we see most are cracked or shrunken fire-rated sealant and gaps filled with a product that isn’t fire-rated.
Across London, offices, shops, hotels, student halls and blocks of flats all need sealant work from time to time, from washroom silicone to fire-rated sealant around pipes and cables passing through walls. Where a building in Ashburton needs to stay open, work can be planned outside normal hours.
Each job carries a 12-month guarantee, whatever its size.
- Where
- Ashburton (CR0, SE25, CR9)
- Region
- Greater London
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Your questions about fire rated sealant in Ashburton
Is Ashburton in your area for fire rated sealant?
Yes, Ashburton is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or email us with a few details of the job.
Is parking an issue for fire rated sealant in Ashburton?
Parking in Ashburton, 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.
Are you fully insured?
Yes. We’re fully insured, and we can confirm the details when we quote.
What sealant do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We’ll tell you what we are using and why.
How long will you be here?
Most jobs take a few hours for a handful of gaps, and longer for a whole building, including the preparation. We’ll confirm how long when we quote.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. Our applicators cover Ashburton.
Will we have a record of what was sealed?
Yes. Every gap we seal is listed with the product used.
Can you quote for more than one area?
Yes. More than one area can be quoted together.
Fire rated sealant around Ashburton
Commercial buildings in London often have strict access rules and limited loading, and out-of-hours working is possible to arrange. In England, the Regulatory Reform (Fire Safety) Order 2005 requires a fire risk assessment for workplaces and for the common parts of blocks of flats, which is often where open fire-stopping gaps are first noticed. We apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
Ashburton is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book. If you look after a building such as St Thomas Becket Catholic Primary School, service openings in fire-resisting walls need checking after any refurbishment. For buildings such as Church of St Luke, gaps around pipes and cables are worth checking after any building work there.
Ashburton is about 6 miles south of New Cross, in Greater London. Wherever you are in the CR0 postcode area, we cover fire rated sealant for homes and businesses. Across Greater London, we cover 764 places, Ashburton among them. You can also see our page for London, about 8 miles away.
Our applicators cover all of the CR0, SE25 and CR9 postcode area for fire rated sealant. If you need fire rated sealant at a property on Long Lane, Tudor Road and Coe Avenue or a nearby road, we can help. Other places close to Ashburton include Woodside (1 mile north), Addiscombe (1 mile south), Shirley Oaks (1 mile south-east), Monks Orchard (1 mile south-east) and Shirley (1 mile south-east). We also work in nearby towns such as London (8 miles north), City of Westminster (9 miles north-west), Marylebone (10 miles north), Kensington (10 miles north-west), St Pancras (10 miles north) and Shoreditch (10 miles north).
Local landmarks in Ashburton
Typical jobs here are in homes near Oasis Academy Shirley Park, Ashburton Park and The Beehive pub, among other places. For rail, the closest station is Norwood Junction station, about 0.7 miles north-west. Nearby you will also find National Psychosis Unit (1.7 miles east) and Whitgift Centre (1.6 miles south-west). The countryside around Ashburton includes Duppas Hill and Bramley Bank.
Why act early in Ashburton
An open gap in a fire-resisting wall is a route for smoke and fire. A proper seal lets the wall do its job again, and the sealing itself is often a contained piece of work. Converted houses in London often have a bathroom above someone else’s living room, and a slow leak from a failed seal can end up in the flat below. Dealing with it early is far simpler for homes in Ashburton.
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Ask us for a quote and we will go through it with you.
Why book with us
- Sanitary silicone with an anti-fungal additive in wet areas
- A 12-month guarantee on all work
- Fully insured
- Rated 4.9 stars on Google
What affects the quote in Ashburton
Some jobs are bigger than they look, and some smaller. The main factors:
- The size of the job
- How easy the joints are to reach
- Whether there’s mould to deal with
- When we can work, for business premises
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
What we need to know
There’s no need for technical detail. It helps if you can tell us:
- How many joints, rooms or windows are involved
- What’s wrong with the joints now
- Where the property is
- Whether it has been sealed before
Asking for a quote is easy: let us know what needs doing and where and its rough size. A few pictures by email make the job easier to understand, and we’ll take it from there.
How it works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for a handful of gaps, and longer for a whole building, and the area is left clean. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Ashburton. A visitor permit or a nearby bay makes the visit run more smoothly.
- We begin by agreeing the list of gaps from your assessor’s or designer’s requirements.
- Each gap is measured and its substrate and service noted.
- Unsuitable material such as ordinary foam or silicone is cut out.
- We fit backing where needed and apply the fire-rated sealant to depth.
- We hand over a list of locations and products.
How to prepare
- Clear items away from the joints we’re working on
- Let us know about stairs, lifts or work at height
- Let us know about earlier repairs to the joints
Getting a quote
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or drop us an email.
Advice
When something else is needed
Before booking, it’s worth knowing the limits too:
- Doors that aren’t fire doors in the first place
- Construction that does not provide fire resistance on its own
- Issuing a fire rating or certificate for a building
If you’re not sure, just phone 0345 464 0079 or drop us an email and we will give you a straight answer.
Where we work in Ashburton
- Linear gaps
- Plasterboard & masonry
- Door frames
- Pipe & cable gaps
- Service penetrations
- Flats & HMOs
Nearby places to Ashburton
Other services in Ashburton
Keeping the joints in good condition
Looking after new joints is easy:
- Look in service cupboards and ceiling voids from time to time
- Take pictures of fire stopping before ceilings or boxing go back
- Make resealing part of every contractor’s brief
- Report cracked or damaged seals as soon as you notice them
Avoid covering a sealed gap with anything that is not part of the tested detail. Repairs should use a matching fire-rated product. We can tell you which product we used.
A gap left open in a fire-resisting wall or floor lets smoke spread in ways the building wasn’t designed for. Sealing it early is a simple step to take.
Can I do it myself?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.