Greater London · England
Fire Rated Sealant in Feltham
Professional fire rated sealant in and around Feltham, with every bit of old sealant taken out first and a 12-month guarantee.
- Fire stopping disturbed by later work
- Gaps flagged on a fire risk assessment
- Ordinary sealant used where a fire-rated product was needed
Fire rated sealant in Feltham, done properly
Where services or frames pass through a fire-resisting wall or floor, the gap around them needs a fire-rated seal. Each gap is sealed to the product maker’s tested detail for its size and substrate. Typical jobs include standard silicone or caulk in a fire-stopping gap and unsealed gaps where pipes and cables go through a wall, across plasterboard & masonry, service penetrations and door frames.
Commercial work in London comes with its own logistics: loading restrictions, building rules and tight access. For a building in Feltham, we agree timings and access before anything starts.
The work is covered for a year after we finish. If there’s a problem with it, please call 0345 464 0079 or send us an email.
- Location
- Feltham (TW14, TW13)
- Wider area
- Greater London
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026

Honest limits
We will always be straight with you, so here’s what sealant cannot fix:
- Fire risk assessments, which need a qualified assessor
- Large holes that need a different fire-stopping system
- A wall that is not a fire-resisting element to begin with
Not sure which it is? You can call 0345 464 0079 or drop us an email and we’ll tell you honestly.
Where we work in Feltham
- Pipe & cable gaps
- Linear gaps
- Service penetrations
- Door frames
- Plasterboard & masonry
- Flats & HMOs
Other services in Feltham
Questions from Feltham
Is parking an issue for fire rated sealant in Feltham?
Parking in Feltham, 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.
Do you work in hotels near Feltham?
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 come to Feltham?
Yes. We cover Feltham, as part of our work across South East England, London and Scotland. To book, call 0345 464 0079 or email us.
How long does fire rated sealant take?
A typical job takes from a few hours to a few days, depending on the number of gaps and the access. Your quote will say how long we expect yours to take.
Which products do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We will tell you what we are using and why.
Do I need to be at home?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
How much does fire rated sealant cost in Feltham?
Size, access and the old material all affect the cost. Call for a quick quote and we’ll talk you through it.
What fire rating will the seal have?
Ratings and certificates are not something we issue. The performance comes from the product’s tested details and the specification from your assessor or designer.
Workplaces and buildings in Feltham
Feltham 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. Commercial buildings in London often have strict access rules and limited loading, so out-of-hours working can be arranged where needed.
Letting a property close to Feltham station? Then new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant. Schools such as St Lawrence Catholic Primary School are buildings too, and fire-stopping around service openings should be restored whenever new services go in.
Feltham is about 6 miles south-west of Ealing, in Greater London. Jobs in Feltham get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Feltham is one of 764 towns and villages in Greater London we cover for fire rated sealant. London is on our list too, about 14 miles from Feltham.
Our applicators cover all of the TW14 and TW13 postcode area for fire rated sealant. That includes homes and businesses on High Street, Railway Terrace and Sandycombe Road and the roads around them. Feltham is on the A244 and B377, so it’s easy for us to get to. Nearby, we also carry out fire rated sealant in Bedfont (1 mile west), Hounslow (1 mile south-west), Hatton (1 mile north), Ashford Common (2 miles south-west) and Cranford (2 miles north). We also work in nearby towns such as London (14 miles east), City of Westminster (12 miles east), Marylebone (12 miles north-east), Kensington (10 miles east), St Pancras (14 miles north-east) and Shoreditch (15 miles east).
Landmarks near Feltham
Typical jobs here are in homes near Hounslow Heath, Moon On The Square pub and Rivers Academy West London and the streets around them. Feltham has its own railway station: Feltham station. Well-known places in the area include Hounslow Hospital (2.3 miles north-east) and Kempton Steam Museum (1.6 miles south). The countryside around Feltham includes Richmond Hill and Pevensey Road Nature Reserve.
How the job changes by surface
Linear gaps
Linear gaps run along the head of walls, at floor edges and between panels. We seal them to the tested detail, with backing where it’s needed.
Plasterboard walls
In plasterboard walls, the condition of the board edge matters. Crumbling edges are cleaned back before the sealant goes in.
Aftercare tips
So the new joints stay in good condition:
- Flag any open gap you spot round a pipe or cable
- Allow for resealing whenever new services are run
- Check whether a sealant can be painted before decorating over it
- Keep the record of products and locations with your fire safety documents
Follow the cure time we give you before decorating over the sealant. Some fire-rated sealants can be painted and some can’t and we will tell you which one you have.
A flagged gap shouldn’t wait for the next assessment. Have it sealed, then keep the record.
Signs you need fire rated sealant in Feltham
Gaps around door frames are easily missed. The architrave hides the gap between frame and wall, so it can be left open when a door is replaced.
The problems people generally mention when they call include:
- Gaps flagged on a fire risk assessment
- Open holes round services passing through fire walls
- Linear gaps at the head of walls
- Fire seals that have cracked with movement
As a London address, Feltham can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
What to look for in a quote
- Which colour the sealant will be
- Are they insured?
- When the joint can take water or movement
- What happens if they find a problem under the old sealant
Why it’s worth doing now in Feltham
If an assessor has flagged gaps, it makes sense to close them before the next review. Getting them done and written up means you can show the action was taken. Converted houses in London often have a bathroom above someone else’s living room, 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 for homes in Feltham.
Leaving a failed joint generally makes the job bigger, not smaller, as water and mould keep getting in. If you are unsure, call 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
Why choose Mr Mastic in Feltham
- Arbo and Everbuild products
- Full insurance on every job
- Approved under the ARBOMaster scheme
- Any old sealant cut out fully, not covered over
Take a look at what affects the cost or customer reviews.
What affects the cost of fire rated sealant
There’s no set price list, because jobs vary so much. The quote depends on:
- The product the joint needs
- How much old sealant there is and how hard it is to remove
- The size of the job
- Access and height
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Asking for a quote
There’s no need for technical detail. It helps if you can tell us:
- How many joints, rooms or windows are involved
- The problem you’ve noticed
- Any access issues, like height or stairs
- Where the property is
Need a quote? Please call 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.
The process
Before we leave, we go over the finished joints with you and tell you how long to leave it. The work normally takes from a few hours to a few days, depending on the number of gaps and the access, depending on the amount of work. For a job in Feltham, 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.
- First we work through your list or survey, measuring each gap and checking what it’s formed in.
- 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.
- Fire-rated or intumescent sealant is applied to the right depth and tooled.
- Finally, we list where we worked and what we used, for your records.
Getting ready for the visit
- Keep children and pets away from the work area
- Clear the area around the work
- For business premises, tell us about site rules or sign-in
How to get a quote
For a quote, call 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You will have a clear quote before work begins.
