Greater London · England
Fire Rated Sealant in Hanger Hill
Fire-stopping gaps in Hanger Hill need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Gaps left after a refit or conversion
- Old fire sealant that has split or come away
- Joints picked up in a fire-stopping survey
Fire rated sealant in Hanger Hill, done properly
Ordinary silicone or decorators’ caulk in a fire-stopping gap is not 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 door frames, plasterboard & masonry and linear gaps, and common reasons people get in touch are cracked or shrunken fire-rated sealant and door frames with gaps between frame and wall.
London’s offices, shops, hotels, student accommodation and blocks of flats all have joints to look after, from washroom silicone to fire-rated sealant around pipes and cables passing through walls. Out-of-hours working can be arranged where a building in Hanger Hill can’t close.
Big or small, it’s backed by our 12-month guarantee.
- Location
- Hanger Hill (W3, W5, NW10)
- Region
- Greater London
- Guarantee
- One year on every job
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Surface by surface
Service penetrations
A copper pipe, a cable and a plastic pipe can all need different fire-stopping details. We follow the manufacturer’s tested detail for each and we flag any that need another system.
Flats and HMOs
Conversions usually leave a mix of old and new service holes. The gaps on your list are sealed with a fire-rated product.
How the visit works
There is not much for you to do on the day. Show us the job and we will take it from there. The work itself takes from a few hours to a few days, depending on the number of gaps and the access from start to finish. In a London area like Hanger Hill, the main things to plan are parking and access: let us know about parking, the floor we’ll be working on and any lift or shared entrance.
- Access to each area is agreed so the work can run in order.
- Old, damaged or unsuitable sealant is removed.
- Gaps are cleaned of dust and loose material.
- We apply and tool the sealant to the product’s tested detail.
- Locations and products are written up and any gaps unsuitable for sealant are flagged.
How to prepare
- Tell us about any water getting in
- Mention any parking rules near the property
- Clear items away from the joints we’re working on
Ask for a quote
Need a quote? Please ring 0345 464 0079 or email us and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Read more
What sealant work can’t fix
New sealant cannot fix everything, and we will tell you before any work starts. Sealant will not put right:
- Doors that aren’t fire doors in the first place
- Fire risk assessments, which need a qualified assessor
- Openings too large for sealant, which need batts, boards or another system
If in doubt, call 0345 464 0079 or email us and we’ll say what we think before you book.
Where we work in Hanger Hill
- Pipe & cable gaps
- Plasterboard & masonry
- Door frames
- Flats & HMOs
- Service penetrations
- Linear gaps
Hanger Hill: your questions answered
I let a flat near Acton Main Line station. Can you help?
Yes. We work for landlords and agents as well as householders, and several properties can be quoted together. You can ring 0345 464 0079 or send us an email with the details for a clear quote.
Can parking be tricky for a visit in Hanger Hill?
It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. That way the visit can be planned around it.
Do you have insurance?
Yes. Mr Mastic is fully insured, and we have been doing sealant work for more than 20 years.
Do you provide details of the products used?
Yes. You get a list of where we worked and what we used.
How much does fire rated sealant cost in Hanger Hill?
It depends on the job, so we quote each one individually. For a quick quote, call 0345 464 0079 or email us and tell us what needs doing and where.
Do you work in flats, HMOs and commercial buildings?
Yes. Flats, HMOs, offices, schools and other occupied buildings are all part of our work. We agree access and the order of work with you first.
How long will you be here?
That depends on the amount of work, but as a guide it takes anything from a few hours to several days, depending on how many gaps there are. We’ll give you a better idea when we quote.
Is intumescent sealant the same as fire-rated sealant?
Intumescent describes a material that swells in heat. Intumescent sealants are a type of fire-rated sealant and which one is used depends on the job.
What happens if it’s left?
A quick fill with any sealant to hand isn’t 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. 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.
Leaving a failed joint generally makes the job bigger, not smaller. If you’re not sure whether it needs doing, ring 0345 464 0079 or email us and we will give you an honest view and a quote.
Why us?
- ARBOMaster approved applicator
- 20+ years of sealant experience
- Quality sealants from Arbo and Everbuild
- Homes, businesses and hotels
Read how sealant jobs are priced or our reviews.
Also near Hanger Hill
Also in Hanger Hill
Should I try it myself first?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
How to look after the new joints
Simple care keeps the joints in good condition. Our advice:
- Include fire stopping when you schedule refits
- File the fire-stopping record where your assessor can find it
- Ask which product was used before you paint
- Don’t fill fire-stopping gaps with ordinary foam or silicone
Leave the sealant to cure fully before painting near it. Not every fire-rated sealant takes paint and we’ll tell you which one you have.
It’s easiest to seal gaps while they’re few and easy to reach. Over time, more work adds more holes.
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
Fire rated sealant in Hanger Hill: local notes
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, and gaps around services are often picked up there. We work to the specification you’re given, installing the product to its tested details.
For site and facilities teams at buildings such as Holy Family Catholic Primary School, gaps opened by contractors for new cabling are a common finding in schools and offices. Hanger Hill is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book. Letting a property close to Acton Main Line station? Then new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
Hanger Hill is about 1 mile north-west of Acton, in Greater London. If you need fire rated sealant in Hanger Hill, please call 0345 464 0079 or send us an email for a quick quote. We’re based in Crawley and cover Greater London, Hanger Hill included. Across Greater London, we cover 764 places, Hanger Hill among them. We also work in London, around 8 miles away.
We work across the W3, W5 and NW10 postcode area for fire rated sealant. You’ll find streets such as Noel Road, Vale Lane and Links Road. Other places close to Hanger Hill include Park Royal (1 mile north-east), West Twyford (1 mile north), Acton (1 mile south-east), South Acton (1 mile south) and Acton Green (2 miles south-east). Further out, we also cover London (8 miles east), City of Westminster (6 miles east), Marylebone (6 miles east), Kensington (4 miles east), St Pancras (7 miles east) and Shoreditch (9 miles east).
Local landmarks in Hanger Hill
Typical jobs here are in homes near The Ellen Wilkinson School for Girls, The Sir Michael Balcon pub and Library for Iranian Studies and the streets around them. Other local landmarks include The Ellen Wilkinson School for Girls (within half a mile south-west) and Ealing Common (0.7 miles south-west). The closest station to Hanger Hill is Acton Main Line station, about 0.7 miles east of the centre. A little further out are Central Middlesex Hospital (1 mile north-east) and London Transport Museum Depot (1 mile south). Green spaces nearby include Castlebar Hill and Hanger Hill Wood.