Kent · England
Fire-rated sealant in Coombe, Kent
Specialist fire rated sealant for Coombe: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Sealant items on a fire risk assessment action list
- Door frames with gaps between frame and wall
- Cracked or shrunken fire-rated sealant
How we handle fire rated sealant in Coombe
We do not assess buildings or decide what fire stopping is needed; that comes from your fire risk assessor, designer or building control. What we do is apply the right product to that specification, properly and neatly. If you’re dealing with gaps filled with a product that isn’t fire-rated and open holes round services passing through fire walls, we can put it right, on service penetrations, linear gaps and pipe & cable gaps alike.
Work in a small place like Coombe is planned ahead, journey included, so it can be fitted around guests, customers or events where possible.
There’s a 12-month guarantee on every job.
- Location
- Coombe (CT3, CT13)
- Region
- Kent
- Cover
- A year, on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026

Leave it or put it right?
Fire-rated sealants are less forgiving than ordinary ones. Depth, backing and surface preparation all affect how a seal performs, and we work to the product details every time. In a small place like Coombe, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
We don’t show prices on the website, because the cost depends so much on the job itself. Call for a quick quote.
Why choose Mr Mastic in Coombe
- Anti-fungal sanitary silicone in wet areas
- We never seal over old sealant
- Quality sealants from Arbo and Everbuild
- An ARBOMaster approved applicator
Read how sealant jobs are priced or our reviews.
Can I do it myself?
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.
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so tell us about it when you ask for a quote.
Also near Coombe
More services for Coombe
Coombe questions
Do you cover Coombe for fire rated sealant?
Yes. We work across London and the South East, and Coombe is part of that. Just call 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear quote.
Do you work for landlords with property near Sandwich station?
Yes. We work for letting agents and landlords as well as homeowners, and several properties can be quoted together. Just call 0345 464 0079 or email us with the address and what needs doing, and we will send you a clear quote.
Do you hold any approvals?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
What should I tell you?
Only a few details: the address or postcode, what’s wrong and any access issues. Then call 0345 464 0079 or drop us an email.
Can I do it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. If it doesn’t work out, we can redo it.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. Our applicators cover Coombe.
Will there be a smell?
There can be a smell while the sealant cures. Ventilation helps.
How long will you be here?
It depends on the size of the job, but most jobs take anything from a few hours to several days, depending on how many gaps there are. We’ll tell you when we quote.
How it works
Once we are on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take from a few hours to a few days, depending on the number of gaps and the access. Somewhere like Coombe needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We plan the order of work and access, floor by floor or flat by flat.
- Old, damaged or unsuitable sealant is removed.
- Dust and loose debris are cleaned from each gap.
- 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.
Preparing for the visit
- Let us know about earlier repairs to the joints
- For indoor joints, keep the area dry beforehand if you can
- On commercial sites, let us know about site rules
How to get a quote
For fire rated sealant in Coombe, phone 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Read more
What sealant work cannot fix
It helps to know what we cannot do:
- Sign-off of the building, which sits with building control or your assessor
- Big openings where sealant alone is not the tested solution
- Construction that does not provide fire resistance on its own
If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think before booking.
Surfaces we seal
- Plasterboard & masonry
- Service penetrations
- Pipe & cable gaps
- Flats & HMOs
- Linear gaps
- Door frames
For landlords and businesses
For anyone letting property in or around Coombe, several properties can go on one quote. Just tell us the addresses and what each one needs.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
Do you need fire rated sealant in Coombe?
Over time, buildings change layout and use. Conversions to flats and HMOs, and office refits, create new walls and new routes for services, with gaps to match.
Look out for any of the following:
- Ordinary sealant used where a fire-rated product was needed
- Open holes round services passing through fire walls
- Gaps where walls meet ceilings or slabs
- Gaps left after a refit or conversion
For landlords with property near Sandwich station, new cables or pipes through a fire-resisting wall leave a gap that needs the right sealant.
Before you book anyone
- How hidden problems are handled
- How the joint is cleaned and prepared
- Whether the sealant suits the joint
- Are they insured?
Commercial buildings in Coombe
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 work to the specification you are given, installing the product to its tested details.
Community buildings like Church of St Nicholas are part of the picture too: older buildings that have had new heating or wiring often have service gaps worth checking. For site and facilities teams at buildings such as Ash Cartwright and Kelsey Church of England Primary School, fire-stopping around service openings should be restored whenever new services go in.
Coombe is about 6 miles north-west of Deal, in Kent. Across the CT3 area, our applicators can take on fire rated sealant. Our area takes in 922 places across Kent. Our Chelmsford page covers work nearby.
We cover every part of the CT3 and CT13 postcode area for fire rated sealant. Whether your property is on Coombe Lane, Saunders Lane and Langdon Avenue or a nearby road, we can help. Neighbouring places we cover for fire rated sealant include Flemings (1 mile south-west), Ash (1 mile north-west), Weddington (1 mile north), Guilton (1 mile west) and Hammill Park (1 mile south). Larger places within reach include Canterbury (9 miles west), Margate (8 miles north-east), Dover (9 miles south), Folkestone (14 miles south-west), Ramsgate (7 miles north-east) and Broadstairs (9 miles north-east).
Near you in Coombe
Typical jobs here are in homes near The Chequer Inn and Sandwich Technology School. The nearest railway station is Sandwich station, about 2.1 miles east. Well-known places in the area include White Mill (1.6 miles east). For a walk, there’s Monk's Wall nature reserve.
Different surfaces, different methods
Linear gaps
Gaps along the top of partitions are easy to miss above a ceiling. We work along the whole run leaving no stretch unsealed.
Door frames
Our work is the joint between frame and wall. Doors, seals and closers are for a door specialist and we’ll mention anything we notice.
