Greater London · England
Bounds Green Fire Rated Sealant
Intumescent and fire-rated sealant around gaps, frames and service penetrations in Bounds Green, with a one-year guarantee on every job. Call for a quick quote.
- Gaps filled with a product that isn’t fire-rated
- New service routes left unsealed after building work
- Unsealed gaps around fire door frames
About our fire rated sealant in Bounds Green
Until it’s heated, intumescent sealant behaves like an ordinary sealant; then it swells to help close the gap. Which product suits a gap depends on its width, the materials either side and what runs through it, so we work to the manufacturer’s details. We work on service penetrations, linear gaps and plasterboard & masonry, and people most often call us about standard silicone or caulk in a fire-stopping gap and linear gaps at the head of walls.
Commercial work in London comes with its own logistics: loading restrictions, building rules and tight access. For a building in Bounds Green, we agree timings and access before anything starts, and room-by-room programmes can be planned where needed.
You are covered for a year from the day we finish. If there’s a problem with it, please call 0345 464 0079 or drop us an email.

- Place
- Bounds Green (N22, N11, N13)
- Region
- Greater London
- Cover
- One year on every job
- Price
- A clear price before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
How the visit works
Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, do the work and tidy away. Most jobs take anything from a few hours to several days, depending on how many gaps there are. In a London area like Bounds Green, the main things to plan are parking and access: tell us about permits, visitor bays or off-street space, which floor we are working on and whether there’s a lift.
- First we work through your list or survey, measuring each gap and checking what it’s formed in.
- We remove any old or unsuitable filler and clean the gap.
- Backing or fill is fitted where the product’s tested detail calls for it.
- We apply the fire-rated or intumescent sealant to the specified depth and tool it.
- Finally, we list where we worked and what we used, for your records.
Preparing for the visit
- Mention if the joints have been sealed before
- For indoor joints, keep the area dry beforehand if you can
- Keep pets and children clear of the area while we work
Ask for a quote
Every job is quoted individually, so start by telling us what you need. Just ring 0345 464 0079 or email us with the details, and pictures are welcome.
Advice
Leave it or put it right?
Leaving a gap until a refurbishment comes round can mean years with it open. Sealing the gap now is a contained job on its own that doesn’t depend on other work. 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 Bounds Green, the repair is bigger than the sealant job would have been.
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
Why choose Mr Mastic in Bounds Green
- Trusted Arbo and Everbuild sealants
- Rated 4.9 stars on Google
- Over 20 years’ experience
- We never seal over old sealant
Take a look at our cost guide and our reviews.
Workplaces and buildings in Bounds Green
Bounds Green has hotels and guest accommodation in and around it. For hotels, a room-by-room programme keeps most rooms in use while the work goes on. Many London buildings have tight access and loading restrictions, and out-of-hours working is possible to arrange.
For site and facilities teams at buildings such as Bounds Green Infant School, fire-stopping around service openings should be restored whenever new services go in. For buildings such as St Barnabas Greek Orthodox Church, gaps around pipes and cables are worth checking after any building work there.
Bounds Green is about 2 miles east of Finchley, in Greater London. Whether you are in the middle of Bounds Green or further out, we cover fire rated sealant for every kind of property, from flats and houses to offices and hotels. We cover 764 towns and villages across Greater London. Our London page covers work nearby.
Jobs for fire rated sealant in N22, N11 and N13 is quoted and booked the same way as anywhere else. Local streets include Oak Lane, York Road and Park Road, all of which we cover. Bounds Green sits on or near the A109, so getting to you is simple. Neighbouring places we cover for fire rated sealant include Bowes Park (1 mile south-east), Arnos Grove (1 mile north), New Southgate (1 mile north-west), Oakthorpe Park (1 mile north-east) and Palmers Green (1 mile north-east). Larger places within reach include London (8 miles south), City of Westminster (6 miles south), Marylebone (6 miles south), Kensington (8 miles south-west), St Pancras (6 miles south) and Shoreditch (6 miles south).
Landmarks near Bounds Green
Locally, jobs take us to homes and businesses close to Ming-Ai, O. R. Tambo Recreation Ground and The Springfield pub. There’s a railway station in Bounds Green itself: Bowes Park station. Other landmarks nearby include Broomfield House Museum (0.8 miles north-east) and Greentrees Hospital (1.1 miles east). The countryside around Bounds Green includes Glebelands Local Nature Reserve and Darland's Lake.
What the job involves on each surface
Door frames
The gap between a door frame and the wall around it needs sealing as well as the door itself. We fill it with a fire-rated product suited to the materials either side.
Flats and HMOs
Conversions generally leave a mix of old and new service holes. We seal the ones on your specification with a tested product and the locations noted.
Landlords, agents and businesses in Bounds Green
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Letting agents and landlords in Bounds Green can book us as well as householders. Resealing between tenancies keeps a property looking cared for.
Looking after it afterwards
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Keep the record of products and locations with your fire safety documents
- Ask which product was used before you paint
- Include fire stopping when you schedule refits
- Tell trades working in the building that fire seals must be put back
Include fire stopping in your regular building checks. Watch for cracking, gaps or seals that have been disturbed and get them seen to.
Leave a fire-stopping gap open and smoke can move through the building much more easily. Closing it is generally a straightforward job.
When something else is needed
We won’t take on work that won’t last, so these are the limits:
- Openings too large for sealant, which need batts, boards or another system
- Issuing a fire rating or certificate for a building
- Walls or floors that weren’t built to resist fire
If in doubt, phone 0345 464 0079 or email us and we will say what we think before booking.
Where we work in Bounds Green
- Linear gaps
- Door frames
- Plasterboard & masonry
- Pipe & cable gaps
- Flats & HMOs
- Service penetrations
Questions from Bounds Green
Do you take on hotel work around Bounds Green?
Yes, hotels and guest houses are among the places we work. Rooms can be done a few at a time, so the building stays open.
Is parking a problem for a job in Bounds Green?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. The visit is then planned around what’s available.
Do you seal gaps around fire door frames?
Yes. The joint between frame and wall is sealed with a fire-rated sealant. The door leaf and its hardware need a door specialist.
Can new sealant go over the old?
No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
What should I tell you?
A short description and the location. If we need more, we’ll ask.
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.
Can tenants book the work?
We can work for tenants, landlords or agents. Just make sure your landlord agrees.
Where do you work from?
Our base is Crawley. We work across South East England, London and Scotland.
Also near Bounds Green
What else we do in Bounds Green
When to call us in Bounds Green
Lots of unsealed gaps appear long after the building was completed. Electricians, plumbers and data installers drill through walls and ceilings and the hole round the new service is not always sealed again.
Signs it’s time to call us include:
- Standard silicone or caulk in a fire-stopping gap
- Cracked or shrunken fire-rated sealant
- Seals cut through by electricians, plumbers or data installers
- Joints picked up in a fire-stopping survey
Bounds Green is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
What to look for in a quote
- Whether they seal over old material or remove it
- Whether VAT is included
- Which sealant they’ll use, and why
- What the cure time is
