West Sussex · England
Fire-rated sealant in East Grinstead, West Sussex
We cover East Grinstead for intumescent and fire-rated sealant around gaps, frames and service penetrations. Old material cut out, joints cleaned and sealed neatly.
- Open joints along the top of partitions
- Unsealed gaps where pipes and cables go through a wall
- Sealant items on a fire risk assessment action list
Fire rated sealant in East Grinstead
Deciding which gaps need fire stopping isn’t our role; your assessor, designer or building control sets that out. Our part is applying the specified sealant carefully, to the right depth and with the right backing. If you are dealing with cracked or shrunken fire-rated sealant and fire stopping disturbed by later work, we can help, whatever the surface.
If you look after a school, care home, pub or office in East Grinstead, washroom sealant, kitchen joints and fire-rated sealant around service openings all need upkeep. Work can be planned around opening hours where needed.
Whatever the size of the job, you get the same 12-month guarantee.
- Location
- East Grinstead (RH19)
- Wider area
- West Sussex
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Why it’s worth doing now in East Grinstead
If an assessor has flagged gaps, it makes sense to close them before the next review. Having them sealed and recorded now gives you evidence that the item was dealt with. In East Grinstead, as anywhere, most leaks start as a small gap in a joint, and they’re far easier to fix early.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Why choose Mr Mastic in East Grinstead
- We never seal over old sealant
- Anti-fungal sanitary silicone in wet areas
- 180+ five-star Google reviews
- Over 20 years’ experience
For landlords and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Surface by surface
Service penetrations
A copper pipe, a cable and a plastic pipe can all need different fire-stopping details. We follow the manufacturer’s tested detail for each and we flag any that need another system.
Linear gaps
Linear gaps run along the head of walls, at floor edges and between panels. They’re sealed with a fire-rated sealant over backing where the detail calls for it.
What happens on the day
We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours for a handful of gaps, and longer for a whole building and we leave things clean and tidy. Parking in a town like East Grinstead is usually straightforward, but tell us if there’s a driveway or any restrictions, and mention if the work is upstairs, in a flat or high on the outside.
- We begin by agreeing the list of gaps from your assessor’s or designer’s requirements.
- We measure every gap and note what it’s in and what passes through.
- Any non-fire-rated filler is removed and the gap cleaned.
- We fit backing where needed and apply the fire-rated sealant to depth.
- Every location is recorded with the product used for your records.
How to prepare
- Tell us if parking is tricky
- Tell us about any previous sealing or DIY attempts
- Let us know if you’ve seen damp or leaks
Ask for a quote
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or send us an email.
Advice
Towns and villages near East Grinstead
More services for East Grinstead
Can I do it myself?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
A DIY attempt does not rule out a professional job. We cut it out and start again.
When to call us in East Grinstead
Many open fire-stopping gaps are made after the building is finished. Electricians, plumbers and data installers drill through walls and ceilings and the hole they leave does not always get resealed.
Signs it’s time to call us include:
- Gaps filled with a product that isn’t fire-rated
- Fire seals that have cracked with movement
- Gaps left after a refit or conversion
- Door frames with gaps between frame and wall
If you look after a building such as St Mary's CofE Primary School, service openings in fire-resisting walls need checking after any refurbishment.
Questions to ask before booking
- What product goes in the joint
- Which colour the sealant will be
- What guarantee comes with the work
- What happens if they find a problem under the old sealant
FAQs for East Grinstead
Do you cover East Grinstead for fire rated sealant?
Yes. We work across London and the South East, and East Grinstead is part of that. You can call 0345 464 0079 or send us an email and tell us what needs doing, and we’ll give you a clear price.
Do you work for landlords with property near East Grinstead station?
Yes. We work for landlords and letting agents as well as householders. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear price.
Can you give us a record of the work?
Yes. When the job is done, we give you the locations and products. If you need pictures or a set layout, ask when you get a quote.
Can you quote for more than one area?
Yes. Just list everything you need and we will quote it together.
Will it make a mess?
Tidy work is part of the job. Nearby surfaces are protected, and we clear up when we are done.
Do the sealants smell?
Some sealants have a smell while they cure, but it fades. Ventilation helps.
What information do you need?
Where the job is, what the problem is and roughly how big it is. If you can, email a few photos.
Can you tell me how many minutes the seal will last?
We don’t issue ratings or certificates ourselves. The performance comes from the product’s tested details and the specification from your assessor or designer; we install to those details and record what we did.
How to look after the new joints
So the new joints stay in good condition:
- Look in service cupboards and ceiling voids from time to time
- Ask every contractor to reseal any fire stopping they disturb
- Include fire stopping when you schedule refits
- Get damaged fire seals looked at promptly
Don’t drill through or remove a fire seal without putting it back properly. If you need new services through a sealed wall, plan the fire stopping as part of the job.
If a fire risk assessment has flagged a gap, don’t leave it for the next one. Have it sealed, then keep the record so you can show it was dealt with.
Commercial buildings in East Grinstead
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. East Grinstead has hotels and guest accommodation in and around it. Hotel work can be planned room by room, with out-of-hours working where needed.
For landlords with property near East Grinstead station, fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through. For buildings such as Our Lady and St Peter's Church, service openings in its walls need the right fire-rated sealant, as in any building.
East Grinstead is about 8 miles east of Crawley, in West Sussex. If you need fire rated sealant in East Grinstead, it’s easy to get a quote: please phone 0345 464 0079 or email us. We cover West Sussex from our Crawley base, East Grinstead included. East Grinstead is one of 371 towns and villages in West Sussex where we work. You can also see our page for Crawley, roughly 8 miles from East Grinstead.
All of RH19 is covered for fire rated sealant, from the main roads to the quietest streets. That includes homes and businesses on Station Road, High Street and London Road and the roads around them. With the A22 and A264 close by, East Grinstead is simple for us to get to. We also cover the places around East Grinstead: Dormans Park (1 mile north), Saint Hill Green (2 miles south), Felbridge (2 miles north-west), Ashurst Wood (2 miles south-east) and Felcourt (2 miles north). Further out, we also cover Crawley (8 miles west), Horsham (14 miles west), Haywards Heath (10 miles south-west), Burgess Hill (13 miles south-west), Broadfield (9 miles west) and Bewbush (9 miles west). As one of the bigger places in West Sussex, East Grinstead has every kind of property, from flats to offices.
Local landmarks in East Grinstead
Locally, jobs take us to homes and businesses close to Bush Davies School of Theatre Arts, The Railway pub and Sackville School and the streets around them. East Grinstead has its own railway station: East Grinstead station. A little further out are East Grinstead Museum (under half a mile south-east) and Queen Victoria Hospital (0.8 miles north-east). Green spaces nearby include Hedgecourt Lake.