Kent · England
Fire Rated Sealant in Chestnut Street
Problem with your fire-stopping gaps in Chestnut Street? We cut out the old, prepare the joints and apply the right sealant.
- Joints picked up in a fire-stopping survey
- Gaps around pipes and cables through fire-resisting walls
- Holes left by a change of layout
Landlord and commercial work in Chestnut Street
We also work for property managers and facilities teams. We can quote a run of properties together.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
Fire rated sealant for homes and businesses in Chestnut Street
Intumescent sealant looks much like any other sealant until it gets hot; then it swells to help close the gap. Which product suits a gap depends on its width, the materials either side and what runs through it, so we work to the manufacturer’s details. We work on door frames, flats & HMOs and service penetrations, and common reasons people get in touch are damaged fire sealant left by other trades and holes left by a change of layout.
Somewhere as small as Chestnut Street, 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.
Whatever the size of the job, it’s backed by our one-year guarantee in Chestnut Street and across Kent.
- Where
- Chestnut Street (ME9)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026

Towns and villages near Chestnut Street
More services for Chestnut Street
Why it’s worth doing now in Chestnut Street
Items left open on a fire risk assessment tend to come back at the next review. Having them sealed and recorded now gives you evidence that the item was dealt with. Where a wall is exposed, as many are in small places like Chestnut Street, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Why choose Mr Mastic in Chestnut Street
- Neat joints and a tidy finish
- 4.9 on Google from 180+ five-star reviews
- Sanitary silicone with an anti-fungal additive in wet areas
- 20+ years of sealant experience
See our cost guide and customer reviews.
What we’re called out for in Chestnut Street
Movement in the structure can open gaps too: a seal that cracks or pulls away leaves a path for smoke. Knocks, maintenance and building work damage it further.
If you can see any of these, it’s time to have the joints looked at:
- Fire seals that have cracked with movement
- Open holes round services passing through fire walls
- Open gaps behind door architraves
- Fire stopping disturbed by later work
Letting a property close to Newington station? Then any gap left by new services in shared walls should be closed with a fire-rated product.
Before booking anyone
- How hidden problems are handled
- How the joint is cleaned and prepared
- Is VAT in the price?
- How long to leave it before use
How to look after the new joints
After the cure time, these simple habits help:
- Include fire stopping when you schedule refits
- Include hidden areas like risers in routine checks
- Flag any open gap you spot round a pipe or cable
- Make resealing part of every contractor’s brief
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’re not sure which product was used.
It’s easiest to seal gaps while they’re few and easy to reach. Over time, more work adds more holes.
When it is not the sealant
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Fire doors that need new seals, closers or hardware
- Certifying a building or signing off its fire safety
- Large holes that need a different fire-stopping system
If in doubt, phone 0345 464 0079 or send us an email and we will say what we think.
Joints and surfaces we work on
- Door frames
- Service penetrations
- Pipe & cable gaps
- Plasterboard & masonry
- Linear gaps
- Flats & HMOs
What we do, step by step
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, carry out the job and tidy away. It usually takes a few hours for a handful of gaps, and longer for a whole building. Somewhere like Chestnut Street 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.
- Gaps are cleaned of dust and loose material.
- We apply and tool the sealant to the product’s tested detail.
- Locations and products are written up and any gaps unsuitable for sealant are flagged.
How to prepare
- Tell us about access, such as stairs, a lift or high-level joints
- Mention if the joints have been sealed before
- Clear the area around the work
How to get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. When it suits you, phone 0345 464 0079 or send us an email.
Related advice
What affects the quote in Chestnut Street
For a quick quote, just ask. The main things that affect it are:
- Whether there’s mould to deal with
- How easy the joints are to reach
- Whether old sealant or filler has to be cut out
- Which sealant suits the joint
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we’ll explain what it covers.
What to tell us for a quote
Photos help, but a description is a good start. Try to tell us:
- Where the job is, and your postcode
- If it’s domestic, commercial or a hotel
- What the problem is, such as mould, gaps, leaks or cracking
- Any access issues, like height or stairs
For a quote, call 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before we start.
What fire rated sealant looks like in Chestnut Street
For seaside hotels, guest houses and holiday lets around Chestnut Street, busy months put washrooms and kitchens under pressure, so it’s worth checking the sealant before the busiest weeks. 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.
Managing a site like Borden Church of England Primary School? Then gaps opened by contractors for new cabling are a common finding in schools and offices. If you look after a church, hall or community building such as Church of St Peter and St Paul, service openings in its walls need the right fire-rated sealant, as in any building.
Chestnut Street is about 2 miles west of Sittingbourne, in Kent. If you need fire rated sealant in Chestnut Street, please call 0345 464 0079 or send us an email for a quick quote. We cover Kent from our Crawley base, Chestnut Street included. 922 places in Kent are on our list, large and small. We also work in Chelmsford, around 29 miles away.
Postcode districts we cover here for fire rated sealant: ME9. If you need fire rated sealant at a property on Chestnut Street, Maidstone Road and Chestnut Wood Lane or a nearby road, we can help. Neighbouring places we cover for fire rated sealant include Keycol (1 mile north), Bobbing (1 mile north-east), Danaway (1 mile south-west), Oad Street (1 mile south) and Newington (1 mile north-west). We also work in nearby towns such as Maidstone (9 miles south-west), Gravesend (15 miles north-west), Whitstable (15 miles east), Faversham (9 miles east), Minster (7 miles north-east) and Kings Hill (13 miles west).
Local landmarks in Chestnut Street
Locally, jobs take us to homes and businesses close to Westlands School, among other places. The nearest railway station is Newington station, about 1.2 miles north-west of the centre. Other landmarks nearby include Bayford Court (2.3 miles east) and Court Hall Museum (1.9 miles east).
Questions from Chestnut Street
Is Chestnut Street in your area for fire rated sealant?
Yes. Our work covers London and the South East, and Chestnut Street is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear price.
Is Chestnut Street within the area you cover?
Yes. Chestnut Street is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you do fire sealant around door frames?
Yes. The joint between frame and wall is sealed with a fire-rated sealant, to the product’s details. The door leaf and its hardware need a door specialist.
Is there a guarantee?
Yes. There’s a 12-month guarantee on every job, wherever you are.
What fire rating will the seal have?
We do not 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.
Can I do it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Can you quote for more than one area?
Yes. Just list everything you need.
What sealant do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
