Fire Stopping in Harvel
We carry out fire-rated and intumescent sealing of service penetrations and linear gaps in Harvel. Send details for a fixed quote.
- Seals disturbed by maintenance and left open
- Unsealed penetrations discovered above suspended ceilings
- Unsealed joints where partitions meet the slab
Fire stopping in Harvel
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Fire stopping for commercial buildings in Harvel
It helps to set out our role at the start. Deciding the specification sits with the designer, the fire engineer and building control; sign-off sits with them too. We fit the specified fire-rated sealant following that specification and the maker’s installation guidance on sites in Harvel. We work on cable penetrations, service gaps in risers and joints between fire-resisting walls and floors, and the usual reasons a site gets in touch are unsealed openings around new pipes and cables and expanding foam used as fire stopping. A single leaking joint is often how a building in Harvel first comes to us: we look at the rest while we’re there and tell you what we find.
Barn and farm-building conversions near places like Harvel often combine new partitions with old walls. A penetration seal only performs as tested if product, substrate, service, gap and depth all match the detail.
Work we carry out comes with a 12-month guarantee. If an installation problem shows up, call the office on 01277 525 020 or send details through our quote form and we will arrange a return visit.
- Place
- Harvel (DA13)
- Region
- Kent
- Guarantee
- A 12-month guarantee
- Price
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Why deal with it now?
The longer openings stay, the more there tend to be: each new service adds to the list. Keeping on top of it after each round of works keeps the job small. Around Harvel, it’s better to renew all the failing joints at once. Photos of every joint help us quote for the whole job.
Small jobs and large programmes are priced from the same things: scope, access, product and programme. Call for a quote and we will put a fixed figure on it.
Why choose Mastic Doctor in Harvel
- CSCS-carded applicators
- Work to your specification and the manufacturer’s guidance
- Clear, fixed quotes
- Commercial sealant work since 2005
See how commercial sealant jobs are priced or how we’re accredited.
Doing it in-house
Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.
How a job runs
Inspect, seal, sign off: every visit follows that pattern. First comes an inspection and agreement on scope, then we prepare and seal each joint with the specified product, and the job ends with a walk round and sign-off. Smaller jobs around Harvel can be grouped with others nearby, which keeps travel down. You will have a fixed quote before work starts.
- We ask for the product and detail your designer has specified.
- We sort the openings by the detail each one needs.
- Old or wrong materials are cut out.
- Mineral wool or other backing is fitted where required.
- Fire-rated or intumescent sealant goes in around the services and is tooled off.
- We walk the completed areas with you and confirm the records agreed at quote stage.
Getting the site ready
- Make sure the joints can be reached
- Tell staff and tenants when we will be in
- Tell us your opening times and when work is allowed
Ask for a quote
Need a figure for a tender or a budget? Send the scope and any drawings, and we’ll return a fixed quote that you can work with. For a chat about it beforehand, give us a call on 01277 525 020 or use the quote form.
Related advice
Towns and villages near Harvel
Other services in Harvel
Commercial clients in Harvel
We work for building owners and managing agents on everything from one building to a spread of sites around Harvel. One quote can cover more than one site, which keeps the paperwork simple.
For main contractors, we work as the sealant subcontractor, on new build and refurbishment alike. We work to your programme, your specification and your site rules.
Honest limits
Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. These need a different solution:
- Large openings beyond what any sealant detail covers
- Gaps in walls that were never built as compartment walls
- Fire doors, dampers or other fire safety equipment
If you are not sure, just phone 01277 525 020 or email us and we’ll give you a straight answer.
What we seal
- Cable penetrations
- Linear gaps at wall heads
- Service gaps in risers
- Small duct penetrations where the tested detail allows
- Pipe penetrations
- Joints between fire-resisting walls and floors
FAQs: Harvel
Is Bowes Industrial Centre, near Harvel, within your area?
Yes. We cover Harvel and the area around it, including industrial estates, business parks and retail parks such as Bowes Industrial Centre. A few photographs and the unit address let us price the work.
Is a smaller place like Harvel outside your area?
No. Small places get the same service as large ones. We work across Greater London and the South East. Good photographs up front let us bring everything on the first visit.
Does weather matter for sealant work?
Outside, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.
Do you take on small jobs?
We quote for single jobs as well as large packages and programmes. Photos and a description are enough to start.
When can the area be used after sealing?
The product and site conditions decide that. Some products skin over quickly but need longer to cure fully, so we’ll confirm the curing time on the day.
How long does a typical visit take?
That varies with the scale of the job, but the work normally takes a single visit for a short list of penetrations, or a phased programme for a whole building. For bigger or phased jobs, we will set out a timescale with the quote.
Do you seal on top of existing sealant?
No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.
Service penetrations in Harvel buildings
At about 23 miles from central London, Harvel is within reach of the capital. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls, and the gaps need sealing with the specified product. In England, Approved Document B covers fire stopping of openings and penetrations. From 2 September 2029, BS 476 references are being taken out of Approved Document B, leaving BS EN 13501-2 classification as the route, subject to the Government’s transitional arrangements. We install whatever has been specified, to the product’s tested detail.
Where a unit on an estate such as Bowes Industrial Centre, which lies north-west of Harvel, has fire-resisting walls between offices and warehouse, any new service through them should be sealed to the tested detail. In a building such as Church of Our Lady of the Meadow, any service penetration through a fire-resisting wall should be sealed to the specified detail. Schools such as Culverstone Green Primary School often have new data and services installed during holidays, and penetrations through fire-resisting walls should be checked afterwards.
Harvel is about 6 miles south of Gravesend, in Kent. We cover Harvel and the rest of Kent, with the same fixed quotes and 12-month guarantee as everywhere else. Harvel is one of 931 places in Kent on our list for service penetrations. For work in that direction, see our London page (23 miles or so).
Anyone looking for fire stopping in DA13 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. For a building on St Francis Road, Hart Lane and Harvel Street or nearby, we can quote for service penetrations. Just outside Harvel, we also work in Priestwood Green (1 mile north), Culverstone Green (1 mile south-west), Priestwood (1 mile north), South Street (1 mile north-west) and Vigo Village (1 mile south). Nearby towns on our patch include Maidstone (9 miles south-east), Dartford (9 miles north-west), Sevenoaks (9 miles south-west), Royal Tunbridge Wells (15 miles south), Gravesend (6 miles north) and Tonbridge (11 miles south).
Landmarks near Harvel
We work on buildings around Meopham School and Trosley Country Park. The closest station to Harvel is Sole Street station, about 2.7 miles north of the centre. A little further out are Leybourne Castle (3.6 miles south-east) and Coldrum Long Barrow (1.6 miles south). The countryside around Harvel includes Ranscombe Farm.
Surface by surface
Cables and cable bundles
New data and power cables are the most common breach we see. We reseal around them to the specified detail, and any bundle too large for sealant alone is flagged.
Plastic pipes
Plastic waste pipes through slabs come up often. The detail decides whether sealant alone is enough, and we won’t substitute it for a specified collar.