Greater London · England
Fire-rated sealant in Plaistow, Greater London
Our applicators work in Plaistow on intumescent and fire-rated sealant around gaps, frames and service penetrations. Old material cut out, joints cleaned and sealed neatly.
- Fire stopping disturbed by later work
- Gaps flagged on a fire risk assessment
- Gaps left after a refit or conversion
Plaistow: your questions answered
Do you work in hotels near Plaistow?
Yes, we work for hotels as well as homes and businesses. A room-by-room programme keeps most rooms in use while the work goes on.
Do you work for landlords with property near Sundridge Park station?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before any work starts.
Do you carry out fire risk assessments?
No, assessment isn’t something we do. Once you have a specification or action list from your assessor or designer, we can quote for the fire-rated sealant items.
Where is Mr Mastic based?
Our base is Crawley. We work across South East England, London and Scotland.
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.
Can ordinary silicone be used in a fire-stopping gap?
No. Where a fire-rated seal is needed, it has to be a product tested for that use, installed to its details.
Can you fill the gap behind a fire door frame?
Yes. We seal the gap between the frame and the wall with a suitable fire-rated product following the tested details. The door, its seals and closer are for a door specialist.
Do you cover Plaistow?
Yes. We cover Plaistow. To book, phone 0345 464 0079 or drop us an email.
About our fire rated sealant in Plaistow
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. Common call-outs are for linear gaps at the head of walls and open holes round services passing through fire walls, on door frames, plasterboard & masonry and linear gaps.
London blocks of flats carry pipes and cables through walls and floors in their common parts and service risers. For managing agents and building owners in Plaistow, that can mean fire-rated sealant around service openings as well as resealing in shared washrooms and kitchens.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we’ll put it right.

- Place
- Plaistow (BR1, BR2, BR3)
- Region
- Greater London
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Quotes for fire rated sealant in Plaistow
We don’t publish a price list, because no two jobs are the same. What we look at:
- How many rooms, windows or areas are involved
- Any mould that needs treating
- The old material and how stubborn it is
- Working hours on commercial sites
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Helping us quote
Photos by email are helpful but not essential. Try to tell us:
- The address or postcode of the job
- Any previous sealing or DIY work
- The type of property
- How we’d reach the joints
For a quote, call 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We will send you a clear quote before any work starts.
How the job changes by surface
Flats and HMOs
Conversions normally leave a mix of old and new service holes. The gaps on your list are sealed with a fire-rated product and record where they are.
Masonry and concrete
Holes through concrete and block are rarely neat. We measure the gap at its widest point to make sure it suits the product.
When something else is needed
We won’t take on work that will not last, so here’s what sealant cannot put right:
- Assessing a building’s fire safety
- A wall that is not a fire-resisting element to begin with
- Large holes that need a different fire-stopping system
Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly before booking.
Surfaces we seal
- Service penetrations
- Flats & HMOs
- Linear gaps
- Door frames
- Plasterboard & masonry
- Pipe & cable gaps
What fire rated sealant looks like in Plaistow
Many London buildings have tight access and loading restrictions, and out-of-hours working is possible to arrange. 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 apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
If you look after a church, hall or community building such as St Mary’s Church, service openings in its walls need the right fire-rated sealant, as in any building. If you look after a building such as Burnt Ash Primary School, service openings in fire-resisting walls need checking after any refurbishment. Rented homes near Sundridge Park station change hands often, and fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through.
Plaistow is about 1 mile north of Bromley, in Greater London. Jobs in Plaistow get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Across Greater London, we cover 764 places, and Plaistow is one of them. We also work in London, about 7 miles from Plaistow.
Postcode districts we cover here for fire rated sealant: BR1, BR2 and BR3. We cover properties on Saxon Road, Arcus Road and Croft Road. Neighbouring places we cover for fire rated sealant include Downham (1 mile north), Sundridge (1 mile east), Grove Park (1 mile north-east), Bromley (1 mile south) and Chinbrook (1 mile north-east). We also work in nearby towns such as London (7 miles north-west), City of Westminster (10 miles north-west), Marylebone (10 miles north-west), Kensington (11 miles north-west), St Pancras (9 miles north-west) and Shoreditch (8 miles north-west).
Local landmarks in Plaistow
In Plaistow, that means homes and buildings near Holy Trinity College Bromley, The Railway Tavern and Haberdashers' Aske's Knights Academy and the streets around them. Plaistow’s nearest station is Sundridge Park station, about 0.6 miles south-east. A little further out are Greenwich Castle (4.1 miles north) and Prefab Museum (1.3 miles north-west). Green spaces nearby include Downham Woodland Walk and Summer Hill.
What we do, step by step
All our tools and materials come with us in the van, so there’s nothing for you to buy. After a quick look at the joints together, the area is protected and the work begins. Most jobs take from a few hours to a few days, depending on the number of gaps and the access. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Plaistow. A visitor permit or a nearby bay makes the visit run more smoothly.
- Before starting, we go through the specification or action list with you.
- We measure every gap and note what it’s in and what passes through.
- Unsuitable material such as ordinary foam or silicone is cut out and the faces cleaned.
- The specified fire-rated sealant goes in over any backing its detail requires.
- Every location is recorded with the product used for your records.
Getting ready for the visit
- Clear the area around the work
- Let us know about stairs, lifts or work at height
- Keep pets and children clear of the area while we work
How to get a quote
Every job is quoted individually, so start by telling us what you need. Just call 0345 464 0079 or email us with the details.
Related advice
DIY sealant or a professional job?
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Landlord and commercial work in Plaistow
Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
Places near Plaistow
Also in Plaistow
Keeping the joints in good condition
A little care helps the new joints last. Our advice:
- Ask which product was used before you paint
- Tell trades working in the building that fire seals must be put back
- Include fire stopping when you schedule refits
- Get damaged fire seals looked at promptly
Look at the sealed gaps as part of your routine walk-rounds. Look for cracks, gaps or sealant that has been cut or pulled out and have them put right.
Small gaps around services are simple to deal with while there are only a few. Leave them and each new job adds another hole and the job gets bigger.
