Greater London · England
North Hyde Fire Rated Sealant
Intumescent and fire-rated sealant around gaps, frames and service penetrations for homeowners, landlords and businesses in North Hyde. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Fire stopping disturbed by later work
- Sealant items on a fire risk assessment action list
- Unsealed gaps around fire door frames
Fire rated sealant for homes and businesses in North Hyde
In flats, HMOs, offices and schools, fire stopping is often disturbed by later work. A new cable run or a replaced pipe can leave an open hole behind. Those are the gaps we close, using a tested fire-rated product. We’re often asked to deal with gaps left after a refit or conversion and damaged fire sealant left by other trades, on flats & HMOs, door frames and pipe & cable gaps.
In London’s blocks of flats, service risers and common parts have pipes and cables passing through walls and floors. In North Hyde, 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.

- Location
- North Hyde (UB2, TW5)
- Region
- Greater London
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What we cannot put right
Before booking, it’s worth knowing the limits:
- Big openings where sealant alone is not the tested solution
- Fire doors that need new seals, closers or hardware
- Certifying a building or signing off its fire safety
If you’re not sure, just call 0345 464 0079 or drop us an email and we will give you a straight answer.
Where we work in North Hyde
- Pipe & cable gaps
- Door frames
- Plasterboard & masonry
- Service penetrations
- Flats & HMOs
- Linear gaps
How it works
When we arrive, we look over the joints with you first, so you know exactly what we’re doing. We protect the surfaces around the joints before any work begins. The work normally takes from a few hours to a few days, depending on the number of gaps and the access. For a job in North Hyde, parking and access are the things to plan: 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.
- We record what was done and flag anything that needs a different system.
How to prepare
- Tell us about any water getting in
- For business premises, tell us about site rules or sign-in
- Keep children and pets away from the work area
Ask for a quote
For a quote, call 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.
Advice
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- File the fire-stopping record where your assessor can find it
- Keep general-purpose foam and caulk away from fire-stopping gaps
- Photograph sealed gaps before they’re covered up
- Allow for resealing whenever new services are run
Avoid covering a sealed gap with anything that isn’t part of the tested detail. Repairs should use a matching fire-rated product. We can tell you which product we used.
Leave a fire-stopping gap open and smoke can move through the building much more easily. Sealing it early is a simple step to take.
Quotes for fire rated sealant in North Hyde
There’s no set price list, because no two jobs are the same. What we look at:
- Access and height
- Mould in or behind the old joints
- The size of the job
- The old material and how stubborn it is
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
Asking for a quote
Photos help, but a description is a good start. Try to tell us:
- The type of property
- The rough size of the job
- Photos by email, if that is easy
- Where the job is, and your postcode
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we’ll talk you through the work.
Questions from North Hyde
Do you take on hotel work around North Hyde?
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.
Do you work for landlords with property near Southall station?
Yes, we work for landlords and letting agents. You can phone 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before we start.
Can I choose the sealant colour?
We will suggest a colour to suit the surroundings, from white and clear to greys and other shades. The product needed can limit the range.
Is it messy?
Tidy work is part of the job. We protect what’s around the joints.
Can ordinary silicone be used in a fire-stopping gap?
No. It looks sealed but won’t perform as fire stopping. Use a product tested for that gap and service.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. We cover North Hyde and the rest of Greater London, along with the rest of our area.
How long does the job take?
Typically it takes from a few hours to a few days, depending on the number of gaps and the access. Larger jobs naturally take longer.
Is the work guaranteed?
Yes, always. There’s a 12-month guarantee on every job, wherever you are.
DIY sealant or a professional job?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Surface by surface
Masonry and concrete
Masonry is dusty and porous, so preparation matters. The gap is cleaned and backed where required before the sealant goes in.
Service penetrations
New gaps tend to show up where services have been added. Old or unsuitable filler comes out before the right sealant goes in.
What fire rated sealant looks like in North Hyde
Many London buildings have tight access and loading restrictions, so out-of-hours working can be arranged where needed. North Hyde has hotels and guest accommodation in and around it. Hotel work can be planned room by room, with out-of-hours working where needed.
Schools such as Norwood Green Infant and Nursery School are buildings too, and service openings in fire-resisting walls need checking after any refurbishment. For buildings such as St Leonard's Church, gaps around pipes and cables are worth checking after any building work there. As a London address, North Hyde can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
North Hyde is about 1 mile south of Southall, in Greater London. North Hyde gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. 764 places in Greater London are on our list. There’s also a page for London, about 12 miles away.
Postcode districts we cover here for fire rated sealant: UB2 and TW5. Fire rated sealant is available to properties on Lea Road, Fern Lane and Court Road. Being close to the A3005, North Hyde is easy for our applicators to reach. If you’re just outside North Hyde, we cover Heston (1 mile south), Norwood Green (1 mile east), Osterley (1 mile east), Lampton (1 mile south-east) and Hounslow West (2 miles south). Within a short drive, we also cover London (12 miles east), City of Westminster (10 miles east), Marylebone (10 miles east), Kensington (8 miles east), St Pancras (12 miles east) and Shoreditch (13 miles east).
Near you in North Hyde
Locally, jobs take us to homes and businesses close to Minet Country Park, The Plough Public House and Featherstone High School, among other places. North Hyde’s nearest station is Southall station, about 1 mile north of the centre. Well-known places in the area include Museum of Army Music (2.9 miles south-east) and St Bernard's Hospital (1.6 miles north-east). Open spaces near North Hyde include Long Wood and Garden Lake.
Landlord and commercial work in North Hyde
Housing providers, facilities teams and property managers book us too. Several sites can go on one quote, and we are fully insured for the work.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll give you a quote.
