Kent · England
Fire-rated sealant in Marsh Green, Kent
Fire rated sealant across Marsh Green and nearby, with old sealant always removed completely.
- New service routes left unsealed after building work
- Cracked or shrunken fire-rated sealant
- Standard silicone or caulk in a fire-stopping gap
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Fire rated sealant for homes and businesses in Marsh Green
Ordinary silicone or decorators’ caulk in a fire-stopping gap is not a fire-rated seal. Anything unsuitable comes out first and reseal with a fire-rated product tested for that kind of gap. If you have fire stopping disturbed by later work and unsealed gaps around fire door frames, we can help.
Somewhere as small as Marsh Green, commercial jobs tend to be pubs, holiday lets, farm buildings or halls rather than offices. Each still needs sound sealant in its washrooms and kitchens, and fire-rated joints where services pass through walls.
Every job comes with our 12-month guarantee, wherever you are in Kent.
- Where
- Marsh Green (TN8)
- Region
- Kent
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Work for landlords, hotels and businesses
We also work for property managers and facilities teams in Marsh Green and across Kent. Several sites can go on one quote, and we are fully insured for the work.
If you manage several properties in or around Marsh Green, several properties can be quoted together. Just tell us the addresses and what each one needs.
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Don’t paint over fire sealant until it has cured
- Flag any open gap you spot round a pipe or cable
- Include fire stopping when you schedule refits
- Store the list of sealed gaps with your building paperwork
Avoid covering a sealed gap with anything that isn’t part of the tested detail. Repairs should use a matching fire-rated product. Ask us if you are not sure which product was used.
It’s easiest to seal gaps while they’re few and easy to reach. Leave them and each new job adds another hole and the job gets bigger.
What fire rated sealant looks like in Marsh Green
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’re given, installing the product to its tested details.
Letting a property close to Edenbridge Town station? Then fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through. If you look after a church, hall or community building such as Marsh Green Mission Church, gaps around pipes and cables are worth checking after any building work there.
Marsh Green is about 5 miles north-east of East Grinstead, in Kent. Every kind of property in Marsh Green is covered for fire rated sealant, old or new, large or small. The work is guaranteed for a year. Our area takes in 922 places across Kent. Our Crawley page covers work nearby (12 miles or so).
Postcode districts we cover here for fire rated sealant: TN8. That includes homes and businesses on Marsh Green Road and Greybury Lane and the roads around them. We also cover the places around Marsh Green: Stick Hill (2 miles east), Dormansland (2 miles south-west), Hammerwood (3 miles south), Cowden (3 miles south-east) and Lingfield (3 miles west). Larger places within reach include Sevenoaks (9 miles north-east), Royal Tunbridge Wells (10 miles east), Tonbridge (10 miles east), Paddock Wood (14 miles east), Southborough (9 miles east) and Broadwater Down (9 miles south-east).
Around Marsh Green
Typical jobs here are in homes near Wheatsheaf Inn, among other places. The closest station to Marsh Green is Edenbridge Town station, roughly 1.6 miles north of the centre. Other landmarks nearby include Haxted Watermill Museum (1.5 miles north-west) and Queen Victoria Hospital (3.8 miles south-west).
Common questions in Marsh Green
Do you cover smaller places like Marsh Green?
Yes, Marsh Green is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Do you work for landlords with property near Edenbridge Town station?
Yes, we work for letting agents and landlords. Just ring 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear quote.
How much does fire rated sealant cost in Marsh Green?
It depends on the job, so we quote each one individually. For a quick quote, ring 0345 464 0079 or send us an email with a short description of the job.
Is there any odour?
Sometimes, a little. Any smell clears as the sealant cures.
What’s the difference between intumescent and fire-rated sealant?
An intumescent sealant expands when it gets hot. Intumescent sealants are one kind of fire-rated sealant; which product suits depends on the gap, the substrate and the service.
Where is Mr Mastic based?
We’re a Crawley-based firm, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Do you carry out fire risk assessments?
No, we do not assess buildings. Once you have a specification or action list from your assessor or designer, we will quote for the sealant work on it.
Is standard sealant good enough for a fire gap?
No. Standard sealants are not made or tested to stop fire. If it’s been used, we remove it and use the right product.
What we do, step by step
We bring everything the job needs with us. Once we’ve agreed what’s being done, the area is protected and the work begins. It normally takes from a few hours to a few days, depending on the number of gaps and the access. Somewhere like Marsh Green 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 go through the gaps on your list or survey and check each one’s size and substrate.
- Anything that isn’t fit for the job comes out, and the gap is cleaned.
- Where the tested detail needs backing or fill, we fit it.
- The sealant goes in to the depth its detail sets, then it’s tooled off.
- Finally, we list where we worked and what we used, for your records.
Getting ready for the visit
- Mention if the joints have been sealed before
- Tell us if parking is tricky
- Where the joints are inside, avoid wetting them before we arrive
Get a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email pictures if that’s easy.
Advice
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
Holes in plasterboard are often cut roughly for services. Where a hole is bigger than the sealant’s tested range, it needs another approach.
How we quote for fire rated sealant
We quote each job individually. These are the things that affect it:
- The size of the job
- Whether old sealant or filler has to be cut out
- Any working-time requirements on site
- The number of rooms or windows
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. You will know the price before we begin.
Helping us quote
What to tell us when you ask for a quote:
- How many joints, rooms or windows are involved
- How we’d reach the joints
- Any previous sealing or DIY work
- The problem you’ve noticed
We don’t publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or email us.
Why it’s worth doing now in Marsh Green
An open gap in a fire-resisting wall is a route for smoke and fire. A proper seal lets the wall do its job again, and the sealing itself is often a contained piece of work. In a small place like Marsh Green, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part.
Why us?
- Old sealant always removed completely
- 180+ five-star Google reviews
- Domestic, commercial and hotel work
- More than 20 years in sealant work
Take a look at how sealant jobs are priced and what customers say.