Greater London · England
Mugswell Fire Rated Sealant
Fire rated sealant in Mugswell from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Cracked or shrunken fire-rated sealant
- Ordinary sealant used where a fire-rated product was needed
- Sealant items on a fire risk assessment action list
The process
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes anything from a few hours to several days, depending on how many gaps there are, and the area is left clean. For a job in Mugswell, 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.
- We go through the gaps on your list or survey and check each one’s size and substrate.
- We remove any old or unsuitable filler and clean the gap.
- Where the tested detail needs backing or fill, we fit it.
- We apply the fire-rated or intumescent sealant to the specified depth and tool it.
- We record the locations and products used for your records.
Preparing for the visit
- Mention any tricky access
- On commercial sites, let us know about site rules
- Tell us about any water getting in
Get a quote
To get a quote, ring 0345 464 0079 or email us with the location and a short description of the problem. We’ll give you a clear quote before any work starts.
Related advice
About our fire rated sealant in Mugswell
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. Typical jobs include new service routes left unsealed after building work and unsealed gaps where pipes and cables go through a wall, on flats & HMOs, plasterboard & masonry and pipe & cable gaps.
Commercial work in London comes with its own logistics: loading restrictions, building rules and tight access. Timings and access are agreed with the building before work starts in Mugswell, and room-by-room programmes can be planned where needed.
The work is covered for a year after we finish. If anything isn’t right with it, phone 0345 464 0079 or drop us an email.
- Location
- Mugswell (CR5)
- Region
- Greater London
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026

How the job changes by surface
Service penetrations
Service penetrations are where new gaps often appear. Old or unsuitable filler comes out before the right sealant goes in with backing where the detail needs it.
Masonry and concrete
For masonry and concrete, we use a product tested in that substrate. The gap is cleaned of dust first so the sealant bonds.
Towns and villages near Mugswell
Other services in Mugswell
Work for landlords, hotels and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
In hotels, rooms out of use cost money, so we plan the work room by room. We have worked in hotels as well as homes and businesses.
Do you need fire rated sealant in Mugswell?
Door frames are a common weak spot. The architrave hides the gap between frame and wall, so it can be left open when a door is replaced.
Most people get in touch after spotting something like this:
- Sealant items on a fire risk assessment action list
- Gaps filled with a product that isn’t fire-rated
- New service routes left unsealed after building work
- Gaps around pipes and cables through fire-resisting walls
If you look after a building such as Kingswood Primary School, service openings in fire-resisting walls need checking after any refurbishment.
What your quote should include
- How long to leave it before use
- Is the old sealant removed completely?
- Whether the sealant suits the joint
- Who does the work, and how experienced they are
Should I try it myself first?
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
What we can’t put right
It helps to know what we cannot do too:
- A wall that isn’t a fire-resisting element to begin with
- Fire risk assessments, which need a qualified assessor
- Problems with the door itself rather than the gap around the frame
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly.
What we seal
- Door frames
- Pipe & cable gaps
- Flats & HMOs
- Plasterboard & masonry
- Service penetrations
- Linear gaps
Fire rated sealant in Mugswell: local notes
Many London buildings have tight access and loading restrictions, 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, 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.
Rented homes near Kingswood station change hands often, and any gap left by new services in shared walls should be closed with a fire-rated product. For buildings such as Church of Jesus Christ and the Wisdom of God, gaps around pipes and cables are worth checking after any building work there.
Mugswell is about 3 miles north of Reigate, in Greater London. Mugswell gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Mugswell is one of 764 places in Greater London where we work. Crawley is on our list too, about 12 miles from Mugswell.
Our applicators cover all of CR5 for fire rated sealant. Neighbouring places we cover for fire rated sealant include Gatton (1 mile south-east), Hooley (2 miles north-east), Merstham (2 miles east), South Merstham (2 miles south-east) and Netherne on-the-Hill (3 miles north-east). Within a short drive, we also cover Kensington (15 miles north), Brompton (15 miles north), Stockwell (14 miles north), Orpington (15 miles north-east), Wimbledon (10 miles north) and Kennington (14 miles north).
Local landmarks in Mugswell
In Mugswell, that means homes and buildings near Eyhurst Park, Well House Inn and St Bede's School and the streets around them. Mugswell’s nearest station is Kingswood station, about 1.3 miles north-west of the centre. Well-known places in the area include Surrey Fire Museum (2.4 miles south) and The Belfry (2.9 miles south-east). Not far away are Reigate Heath and Colley Hill.
Your questions about fire rated sealant in Mugswell
Is parking a problem for a job in Mugswell?
In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot.
Do you cover Mugswell for fire rated sealant?
Yes. We work across London and the South East, and Mugswell is part of that. Just phone 0345 464 0079 or drop us an email with a few details of the job.
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.
Can you quote for more than one area?
Yes. Several rooms, windows or areas can go on one quote.
Do you take on fire stopping in schools and offices?
Yes, in flats, HMOs, schools, offices and other buildings, occupied or empty. Tell us how the building is used and we will plan around it.
I’m a tenant. Can you help?
Yes. Ask your landlord first, and we can send them the quote if that helps.
Do you seal gaps around fire door frames?
Yes. Gaps behind architraves are a common job for us. The door and its fittings are a separate job for a door specialist.
What fire rating will the seal have?
We don’t issue ratings or certificates ourselves. What’s required is set by your assessor or designer, and the product’s tested details show what it achieves; we install to those details and record what we did.
What happens if it’s left?
Fire-rated sealants are less forgiving than ordinary ones. How it’s installed changes how it performs, so we follow the maker’s details on every gap. 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. Putting it right early is much less trouble for homes in Mugswell.
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs. Ask us for a quote and we’ll go through it with you.
Why choose Mr Mastic in Mugswell
- Anti-fungal sanitary silicone in wet areas
- 4.9 on Google from 180+ five-star reviews
- Neat joints and a tidy finish
- 12-month guarantee on every job
See what affects the cost and what customers say.
