Greater London · England
Fire Rated Sealant in Eastcote
Intumescent and fire-rated sealant around gaps, frames and service penetrations for homes and businesses in Eastcote and across Greater London. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Fire seals that have cracked with movement
- Open gaps behind door architraves
- Ordinary sealant used where a fire-rated product was needed
Surface by surface
Flats and HMOs
In occupied buildings, we plan the order of work with you. Access to flats and common areas is agreed in advance to keep disruption down.
Linear gaps
A linear joint may need to allow for movement as well as fire. We choose a product and depth that suit the gap and the movement.
Fire rated sealant in Eastcote, done properly
Fire stopping only performs as intended if it’s done to the detail: the right depth, the right backing and the right product for the substrate. That detail is what we take care over, one gap at a time. We are often asked to deal with unsealed gaps around fire door frames and open holes round services passing through fire walls, across plasterboard & masonry, pipe & cable gaps and door frames.
Across London, offices, shops, hotels, student halls and blocks of flats all need sealant work from time to time, whether that’s washroom resealing or fire-rated sealant around service openings. Where a building in Eastcote needs to stay open, work can be planned outside normal hours.
All our work comes with a one-year guarantee, wherever you are in Greater London.
- Where
- Eastcote (HA5, HA4, HA2)
- Region
- Greater London
- Cover
- 12 months on all our work
- Price
- A clear price before we start
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
How we quote for fire rated sealant
Jobs vary more than people expect. The main factors:
- The size of the job
- When we can work, for business premises
- The product the joint needs
- Any mould that needs treating
The cost depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before we start, so you know where you stand.
What to tell us for a quote
Before you ask for a quote, have a think about:
- Where the job is, and your postcode
- Access, such as stairs, a lift or height
- A few photos by email, if you can
- How many joints, rooms or windows are involved
Getting a quote is simple: let us know the job and the location, and roughly how big it is. A few photos by email make the job easier to understand.
Leave it or put it right?
Items left open on a fire risk assessment tend to come back at the next review. Having them sealed and recorded now gives you evidence that the item was dealt with. In a flat in Eastcote, failed sealant seldom stays inside your own four walls: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re unsure, ring 0345 464 0079 or email us for an honest opinion and a quote.
Why choose Mr Mastic in Eastcote
- Approved under the ARBOMaster scheme
- We never seal over old sealant
- 4.9 on Google from 180+ five-star reviews
- More than 20 years in sealant work
Fire rated sealant in Eastcote: local notes
Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, which is often where open fire-stopping gaps are first noticed. We work to the specification you’re given, installing the product to its tested details. Commercial buildings in London often have strict access rules and limited loading, and out-of-hours working is possible to arrange.
Schools such as Cannon Lane Primary School are buildings too, and fire-stopping around service openings should be restored whenever new services go in. For landlords with property near Headstone Lane station, any gap left by new services in shared walls should be closed with a fire-rated product.
Eastcote is about 1 mile north-east of Ruislip, in Greater London. We provide fire rated sealant to homes and businesses in Eastcote and nearby, as part of our work across Greater London. Eastcote is one of 764 towns and villages in Greater London where we work. You can also see our page for London, roughly 14 miles from Eastcote.
We work across HA5, HA4 and HA2 for fire rated sealant. Fire rated sealant is available to properties on Hill Road, Bridle Road and Cannon Lane. Nearby, we also carry out fire rated sealant in Pinner (1 mile north), Roxbourne (1 mile south-east), Pinner Green (1 mile north), Rayners Lane (1 mile south-east) and North Harrow (1 mile east). Larger places within reach include London (14 miles south-east), City of Westminster (11 miles south-east), Marylebone (11 miles south-east), Kensington (10 miles south-east), St Pancras (12 miles east) and Shoreditch (14 miles east).
What’s near Eastcote
Typical jobs here are in homes near Pinner High School, The Whittington pub and Heathfield School and the streets around them. The nearest railway station is Headstone Lane station, about 1.9 miles north-east. Nearby you’ll also find Northwood and Pinner Cottage Hospital (1.7 miles north-west) and St. George's Shopping Centre (2.2 miles east). Open spaces near Eastcote include Horse Shoe Bay and Islip Manor Meadows.
What sealant work can’t fix
Sealant is not the answer to every problem, and we will tell you before any work starts. Sealant won’t put right:
- Problems with the door itself rather than the gap around the frame
- Large holes that need a different fire-stopping system
- Certifying a building or signing off its fire safety
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly before you book.
What we seal
- Pipe & cable gaps
- Door frames
- Service penetrations
- Plasterboard & masonry
- Linear gaps
- Flats & HMOs
Eastcote: your questions answered
Can parking be tricky for a visit in Eastcote?
Parking in Eastcote, 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.
Can you help a landlord with a rental near Headstone Lane station?
Yes. We work for landlords and letting agents as well as householders. You can call 0345 464 0079 or drop us an email with the details for a clear quote.
Is the work guaranteed?
Yes. There’s a 12-month guarantee on every job, large or small.
How much does fire rated sealant cost in Eastcote?
Size, access and the old material all affect the cost. Call for a quick quote and we will talk you through it.
How long does fire rated sealant take?
A typical job takes a few hours for a handful of gaps, and longer for a whole building. We will confirm how long when we quote.
Can you quote for more than one area?
Yes, we can. Several rooms, windows or areas can go on one quote.
Is it OK to seal over old sealant?
No. Fresh sealant does not stick to old sealant, and it traps any mould or water underneath. We remove it all first.
Are you ARBOMaster approved?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Do you need fire rated sealant in Eastcote?
Door frames are a common weak spot. The gap between the frame and the wall is hidden behind the architrave, so it can be left open when a door is replaced.
The most common problems we see are:
- Gaps where walls meet ceilings or slabs
- Standard silicone or caulk in a fire-stopping gap
- Gaps flagged on a fire risk assessment
- Seals cut through by electricians, plumbers or data installers
For buildings such as St Lawrence, older buildings that have had new heating or wiring often have service gaps worth checking.
What to look for in a quote
- What guarantee comes with the work
- What the quote includes, VAT included or not
- What insurance they hold
- What happens if they find a problem under the old sealant
Looking after it afterwards
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Make resealing part of every contractor’s brief
- Store the list of sealed gaps with your building paperwork
- Allow for resealing whenever new services are run
- Keep general-purpose foam and caulk away from fire-stopping gaps
Include fire stopping in your regular building checks. Look for cracks, gaps or sealant that has been cut or pulled out and have them put right.
It’s easiest to seal gaps while they’re few and easy to reach. Over time, more work adds more holes.
Nearby places to Eastcote
Other services in Eastcote
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. All told, the work takes anything from a few hours to several days, depending on how many gaps there are. 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.
- Access to each area is agreed so the work can run in order.
- We take out any damaged or unsuitable sealant.
- Dust and loose debris are cleaned from each gap.
- The fire-rated or intumescent sealant is applied and tooled to the tested detail.
- Locations and products are written up and any gaps unsuitable for sealant are flagged.
Before we arrive
- Mention any tricky access
- For business premises, tell us about site rules or sign-in
- Tell us about any previous sealing or DIY attempts
Getting a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.