Kent · England
Fire-rated sealant in Cold Harbour, Kent
Intumescent and fire-rated sealant around gaps, frames and service penetrations in Cold Harbour, with a 12-month guarantee on every job. Ask us for a quote.
- Open joints along the top of partitions
- Ordinary sealant used where a fire-rated product was needed
- Fire seals that have cracked with movement
What the job involves on each surface
Masonry and concrete
Masonry is dusty and porous, so preparation matters. The gap is cleaned and backed where required before applying the sealant.
Flats and HMOs
Flats and HMOs rely on fire separation between homes and the common parts. We work through the gaps on your assessment, flat by flat if needed.
Fire rated sealant in Cold Harbour
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. If you are dealing with unsealed gaps around fire door frames and ordinary sealant used where a fire-rated product was needed, we can put it right, whatever the surface.
If you have holiday lets, a converted barn used for business or a community building near Cold Harbour, washroom and kitchen sealant and any fire-rated joints need the same attention as anywhere.
There’s a 12-month guarantee on every job.

- Place
- Cold Harbour (ME17)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Price
- A clear price before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
How it works
We bring everything the job needs with us, so you do not need to buy or prepare anything. After a quick look at the joints together, we protect the area and start. It normally takes anything from a few hours to several days, depending on how many gaps there are. Somewhere as small as Cold Harbour, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We plan the order of work and access, floor by floor or flat by flat.
- We take out any damaged or unsuitable sealant.
- Dust and loose debris are cleaned from each gap.
- The fire-rated or intumescent sealant is applied and tooled to the tested detail.
- We record what was done and flag anything that needs a different system.
Preparing for the visit
- Mention any sign-in or site rules at work premises
- Let us know if you’ve seen damp or leaks
- Where the joints are inside, avoid wetting them before we arrive
Getting a quote
Getting a quote is simple: let us know the job and the location and its rough size. A few pictures by email make the job easier to understand, and we will take it from there.
Related advice
Fire rated sealant in Cold Harbour: local notes
Workplaces and the common parts of blocks of flats in England need a fire risk assessment under the Regulatory Reform (Fire Safety) Order 2005, and gaps around services are often picked up there. We apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
Community buildings like Church of St Lawrence are part of the picture too: gaps around pipes and cables are worth checking after any building work there.
Cold Harbour is about 7 miles south-west of Faversham, in Kent. Across the ME17 area, we cover fire rated sealant for homes and businesses. Our Kent coverage runs to 922 places, Cold Harbour among them. Our Chelmsford page covers work nearby (37 miles or so).
Work in ME17 is quoted and booked the same way as anywhere else. We also cover the places around Cold Harbour: Warren Street (1 mile north-west), Payden Street (1 mile north-west), Lenham Heath (2 miles south-west), Charing Heath (2 miles south) and Lenham Forstal (2 miles south-west). Larger places within reach include Maidstone (11 miles west), Ashford (8 miles south-east), Canterbury (14 miles east), Sittingbourne (7 miles north), Whitstable (14 miles north-east) and Faversham (7 miles north-east).
What’s near Cold Harbour
Typical jobs here are in homes near The Harrow pub and Spuckles and Kennelling Woods, among other places. For rail, the closest station is Charing station, roughly 2.3 miles south. Other landmarks nearby include Newnham Castle (3.4 miles north).
Can I do it myself?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Why it’s worth doing now in Cold Harbour
A quick fill with any sealant to hand isn’t fire stopping. A fire-rated product only performs as tested when it’s installed to its tested detail, which is why we match the product and the method to each gap. Older cottages and farmhouses around Cold Harbour can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
The cost depends on the amount of work, how much old material has to come out and how easy the joints are to reach. We give a clear quote before work begins.
Why Cold Harbour clients choose us
- Trusted Arbo and Everbuild sealants
- Rated 4.9 stars on Google
- Over 20 years’ experience
- Sanitary silicone with an anti-fungal additive in wet areas
See our cost guide and what customers say.
Signs you need fire rated sealant in Cold Harbour
If the sealant is too shallow, has the wrong backing or sits on a dusty surface, it isn’t installed as tested. We see plenty of fire stopping that was hurried.
If you can see any of these, it’s time to have the joints looked at:
- Fire stopping disturbed by later work
- Ordinary sealant used where a fire-rated product was needed
- Door frames with gaps between frame and wall
- Old fire sealant that has split or come away
Letting a property close to Charing station? Then any gap left by new services in shared walls should be closed with a fire-rated product.
Questions to ask before you book
- What insurance they hold
- What the quote includes, VAT included or not
- Which sealant they’ll use, and why
- The length of the guarantee
Cold Harbour: your questions answered
Can you help a landlord with a rental near Charing station?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before any work starts.
Do you cover Cold Harbour for fire rated sealant?
Yes. Our work covers London and the South East, and Cold Harbour is part of that. You can ring 0345 464 0079 or drop us an email and tell us what needs doing, and we’ll send you a clear quote.
Do you guarantee your work?
Yes. All our work carries our 12-month guarantee.
Is intumescent sealant the same as fire-rated sealant?
An intumescent material expands when it’s heated. Many fire-rated sealants work this way, but not all, and the choice depends on the gap.
Do you certify the fire stopping?
We do not certify fire stopping or quote ratings. Our part is installing the specified product to its tested details and list the locations and products for you.
Will we have a record of what was sealed?
Yes. We note each location and the product that went in, so you have it on file.
Where are you based?
We’re a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Can you quote for more than one area?
Yes, we can. More than one area can be quoted together.
Also near Cold Harbour
More services for Cold Harbour
Aftercare tips
Simple care keeps the joints in good condition. We recommend:
- Store the list of sealed gaps with your building paperwork
- Make resealing part of every contractor’s brief
- Never patch a fire seal with standard sealant
- Look in service cupboards and ceiling voids from time to time
Do not 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, do not leave it for the next one. Get it sealed and recorded so the item can be closed.
What sealant work can’t fix
To be straight with you, some problems need a different trade:
- Openings too large for sealant, which need batts, boards or another system
- Deciding what fire stopping a building needs
- Walls or floors that weren’t built to resist fire
If in doubt, call 0345 464 0079 or send us an email and we’ll say what we think.
Joints and surfaces we work on
- Service penetrations
- Flats & HMOs
- Pipe & cable gaps
- Door frames
- Plasterboard & masonry
- Linear gaps
