Greater London · England
Fire-rated sealant in Greenford, Greater London
Problem with your fire-stopping gaps in Greenford? We cut out the old, prepare the joints and apply the right sealant.
- Standard silicone or caulk in a fire-stopping gap
- Cracked or shrunken fire-rated sealant
- Gaps around pipes and cables through fire-resisting walls
Fire rated sealant in Greenford, done properly
Landlords, managing agents and facilities teams use us for the sealant items on a fire risk assessment on buildings across Greenford. Send us the list or the survey and we will quote for the fire-rated sealant work on it. If you’re dealing with gaps left after a refit or conversion and cracked or shrunken fire-rated sealant, we can put it right.
London blocks of flats carry pipes and cables through walls and floors in their common parts and service risers. In Greenford, building managers may need both fire-rated sealant around those openings and new sealant in shared washrooms.
There’s a 12-month guarantee on every job, whatever its size.
- Place
- Greenford (UB6, UB5, UB1)
- Wider area
- Greater London
- Guarantee
- One year on every job
- Price
- A clear price before we start
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
For landlords and businesses
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
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.
DIY sealant or a professional job?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Signs you need fire rated sealant in Greenford
Sealant applied too thin, without the backing its detail needs, or onto dust will not perform as it was tested. We see plenty of fire stopping that was hurried.
Common reasons people contact us are:
- Gaps flagged on a fire risk assessment
- Unsealed gaps where pipes and cables go through a wall
- Cracked or shrunken fire-rated sealant
- Fire stopping disturbed by later work
Rented homes near Greenford station change hands often, and new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
What your quote should include
- Whether they’re fully insured
- Which colour the sealant will be
- What the cure time is
- Is VAT in the price?
What affects the quote in Greenford
For a quick quote, just ask. The main things that affect it are:
- The number of rooms or windows
- Any mould that needs treating
- How much there is to do
- Working hours on commercial sites
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are unsure, call 0345 464 0079 or drop us an email for an honest opinion and a quote.
Helping us quote
What to tell us when you ask for a quote:
- Any previous sealing or DIY work
- Roughly how big the job is
- Access, such as stairs, a lift or height
- The type of property
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. When it suits you, phone 0345 464 0079 or send us an email.
Different surfaces, different methods
Plasterboard walls
Plasterboard partitions are common in flats, offices and conversions. The sealant has to be one tested in plasterboard for each gap size.
Masonry and concrete
Masonry is dusty and porous, so preparation matters. We brush and vacuum the gap and use backing where the detail needs it.
Nearby places to Greenford
Other services in Greenford
The process
The work is kept neat and contained to the area we’re working on, so you can get on with your day. The job normally takes from a few hours to a few days, depending on the number of gaps and the access, and we explain the cure time before we leave. For a job in Greenford, parking and access are the things to plan: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.
- We go through the gaps on your list or survey and check each one’s size and substrate.
- Anything that is not fit for the job comes out, and the gap is cleaned.
- Backing or fill is fitted where the product’s tested detail calls for it.
- 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.
Getting ready for the visit
- Clear the area around the work
- Let us know about parking restrictions
- For business premises, tell us about site rules or sign-in
How to get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Read more
What happens if it’s left?
Fire-rated sealants are less forgiving than ordinary ones. How it’s installed changes how it performs, so we follow the maker’s details on every gap. In London conversions, one flat’s bathroom is often above another flat’s ceiling, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Dealing with it early is far simpler.
Combining jobs into one visit generally makes better use of the time than several visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
Why choose Mr Mastic in Greenford
- An ARBOMaster approved applicator
- Domestic, commercial and hotel work
- We’re fully insured
- Old sealant always removed completely
Read how sealant jobs are priced and our reviews.
FAQs for Greenford
Can parking be tricky for a visit in Greenford?
In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when you book.
Is Greenford in your area for fire rated sealant?
Yes, Greenford is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear price.
Will it make a mess?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Is there a guarantee?
Yes. All our work carries our 12-month guarantee.
Can you work in occupied buildings?
Yes. We regularly work in flats, HMOs, schools and offices while they’re in use and we plan access around the people using them. Out-of-hours work can be arranged where it’s needed.
Can I do it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Are you an approved applicator?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Do you have insurance?
Yes. We’re fully insured, and we’ve been doing sealant work for more than 20 years.
Commercial buildings in Greenford
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. Many London buildings have tight access and loading restrictions, so out-of-hours working can be arranged where needed.
Schools such as Oldfield Primary School are buildings too, and service openings in fire-resisting walls need checking after any refurbishment. For buildings such as Parish Church of the Holy Cross (old Church), older buildings that have had new heating or wiring often have service gaps worth checking.
Greenford is about 3 miles north-west of Ealing, in Greater London. Whether you are in the middle of Greenford or further out, we cover fire rated sealant for every kind of property. Greenford is one of 764 towns and villages in Greater London where we work. London is on our list too, around 11 miles away.
All of UB6, UB5 and UB1 is within our area for fire rated sealant, from the main roads to the quietest streets. We cover properties on Courthope Road, Oldfield Farm Gardens and Greenford Road. Greenford is on the A4090 and A4127, which makes it straightforward to reach with everything needed for fire rated sealant. We also cover the places around Greenford: Northolt (1 mile north-west), Perivale (1 mile east), Sudbury (2 miles north-east), Sudbury Hill (2 miles north-east) and Dormers Wells (2 miles south-west). Within a short drive, we also cover London (11 miles east), City of Westminster (9 miles east), Marylebone (9 miles east), Kensington (7 miles south-east), St Pancras (10 miles east) and Shoreditch (12 miles east).
Near you in Greenford
In Greenford, that means homes and buildings near Ada Lovelace Church of England High School, The Railway pub and Northala Fields, among other places. There’s a railway station in Greenford itself: Greenford station. A little further out are London Designer Outlet (3 miles north-east) and Clementine Churchill Hospital (2 miles north). Not far away are Northala Fields and Litten Nature Reserve.