Fire Stopping in Seal
Commercial sealant work in Seal for contractors, FMs and building owners: fire-rated and intumescent sealing of service penetrations and linear gaps, quoted at a fixed price.
- Old intumescent sealant that has split away
- Builders’ foam or ordinary silicone in compartment walls
- Penetration schedules that need working through
Fire stopping for Seal sites
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Fire stopping in Seal
No fire sealant works on its own: the evidence covers a specific product, wall or floor type, service, gap, depth and backing. We match each opening to that detail before any sealant goes in, and raise it with you if it falls outside. Most enquiries involve fire-rated sealant that has cracked or shrunk back and builders’ foam or ordinary silicone in compartment walls, across linear gaps at wall heads, service gaps in risers and pipe penetrations. A specialist sealant contractor works differently from a general builder: in Seal, that means joint design, primers and backing rod as standard.
Barn and farm-building conversions near places like Seal 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.
Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and the quote explains what it covers.
- Location
- Seal (TN15)
- Region
- Kent
- Cover
- A 12-month guarantee
- Quote
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
How the job changes by surface
Plastic pipes
Waste and drainage pipes through floors are a frequent case. The detail decides whether sealant alone is enough.
Drylining partitions
Drylined fire walls are tested in a particular build-up. The sealant detail has to be tested in that wall type, with the stated board layers before sealing.
Questions about Seal
What happens to BS 476 references for fire stopping in Seal?
References to BS 476 classes are being removed from Approved Document B from 2 September 2029, after which BS EN 13501-2 classification is the route, subject to transitional arrangements. Whichever applies, we install the specified product to its tested detail; the specification is for the designer to set.
Is Seal off your patch?
Not at all. Seal is within our area. London and every South East county are within our area. Send photos and a list of what needs doing, and we’ll plan the job to need as few trips as possible.
Can weather delay the job?
Outside, yes. The joint has to be dry and within the product’s temperature range, so damp, frosty or very cold days can stop external work. Inside work is seldom held up.
How long do sealant joints last?
There isn’t a single answer, since movement, weather, cleaning and use all affect it. Regular checks let you plan resealing before leaks or damage.
Are you CHAS accredited?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.
How long does a job like this take?
The duration is planned around your programme and the access we are given. You’ll have an expected duration with the quote.
Do you need to see the site first?
It depends on the job. Simple work can often be priced from photographs, and bigger or more complex jobs typically get a visit.
Honest limits
Before quoting, we check that sealant is the right answer. It won’t put right:
- Construction that lacks the fire resistance the seal relies on
- Large openings beyond what any sealant detail covers
- Fire risk assessments, a job for a competent assessor
If you are not sure, just call 01277 525 020 or send photos by email and we’ll give you a straight answer.
Where we work in Seal
- Small duct penetrations where the tested detail allows
- Cable penetrations
- Joints between fire-resisting walls and floors
- Pipe penetrations
- Service gaps in risers
- Linear gaps at wall heads
More services for Seal
Service penetrations in Seal buildings
Central London is about 20 miles from Seal. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls. Seal has several hotels close by, all within 2 miles. Hotels are divided into compartments, and refurbishments that add pipes and cables through bedroom and corridor walls leave gaps to close.
For a building such as Church of St Peter and St Paul, new heating or data runs are the usual reason penetrations need sealing. For a hospital such as Sevenoaks Hospital, 1 mile to the west of Seal, penetration sealing is usually phased ward by ward, with infection-control rules agreed first. For a building at a site such as Bat & Ball Enterprise Centre (1 mile west of Seal), a check of penetration seals after each fit-out is good practice.
Seal is about 2 miles north-east of Sevenoaks, in Kent. Businesses, contractors and managing agents in Seal use us for work on service penetrations. We work across 931 places in Kent. Our London page has more on work in that area.
If you need fire stopping in TN15, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. If your site is on High Street, Church Road and Jubilee Rise or close by, we can quote for service penetrations. We also cover Greatness (1 mile west), Godden Green (1 mile south), Styants Bottom (2 miles east), Stone Street (2 miles south-east) and Bitchet Green (2 miles south-east). Bigger towns within reach include Maidstone (13 miles east), Dartford (11 miles north), Royal Tunbridge Wells (11 miles south), Gravesend (12 miles north-east), Tonbridge (7 miles south) and Northfleet (11 miles north-east).
Around Seal
Recent enquiries here include premises near Wildernesse School, Kemsing Down and The Five Bells Public House and the streets around them. The closest station to Seal is Bat & Ball station, roughly 1.1 miles west. Well-known places in the area include Sevenoaks Hospital (1.1 miles west) and Sevenoaks Museum (1.7 miles south-west). Open spaces near Seal include Dryhill Nature Reserve.
When to bring in a specialist
A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
Building owners, agents and FMs in Seal
Building owners and managing agents use us on sealant work across single buildings or whole portfolios. Several sites can go on one quote, which keeps the paperwork simple.
Blocks and communal areas make up much of the work for housing associations and agents. We phase the work so people keep access, with each stage agreed with your site contact.
What sets the cost
Before we quote, we look at:
- Phasing around occupants
- The total length or number of joints
- Travel to remote or island sites
- The product specified
The specified product makes a difference, as does the preparation each joint needs, from cutting out to priming and backing rod. Access, phasing and site requirements come into it too.
Before you send an enquiry
Whether it’s one area or a whole building, the same details help:
- Where the site is, with the postcode
- When you need the work done
- Drawings or a marked-up plan, if available
- How the joints are reached, and at what height
Need a figure for a tender or a budget? We’ll quote against your scope and drawings you can plan around. If you have questions first, give us a call on 01277 525 020 or use the quote form.
Diagnose, treat, sign off
The first thing on site is a walk round with your contact, to confirm the scope, the order of work and any areas we must keep clear. Then we strip out anything that has failed, prepare every joint and seal it. Rural sites near Seal may need directions, gate codes or a contact on site. Send that with the details and we will confirm the plan with the quote.
- 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.
Preparing the site
- Share your working hours and any access restrictions
- Point out any areas we must not close
- Arrange parking or a loading space
Request a quote
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, give us a call on 01277 525 020 or email a schedule or drawings.