Fire stopping in Northfleet Green
Fire stopping for Northfleet Green, from a contractor working since 2005. Fully insured, with a 12-month guarantee.
- Seals disturbed by maintenance and left open
- Seals that don’t match their tested detail
- Expanding foam used as fire stopping
Fire stopping for Northfleet Green sites
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Fire stopping for commercial buildings in Northfleet Green
The test standards are BS EN 1366-3 for penetration seals and BS EN 1366-4 for linear joints. That classification, such as EI 60 or EI 120, belongs to the product in its tested arrangement. Reproducing the tested arrangement on site is the part we take care of. We work on pipe penetrations, cable penetrations and service gaps in risers, and the usual reasons a site gets in touch are expanding foam used as fire stopping and improvised or mixed-product fire seals. Looking for mastic applicators who cover Northfleet Green? We’ve been sealing commercial buildings since 2005, with CSCS-carded applicators.
Smaller places such as Northfleet Green still have buildings with fire-resisting walls and floors: schools, halls, care homes and commercial conversions. Any service penetration through those walls should be closed with the specified product, set out as its test evidence shows.
Work we carry out comes with a 12-month guarantee. If an installation problem shows up, ring 01277 525 020 or send details through our quote form and we will arrange a return visit.
- Where
- Northfleet Green (DA13, DA11)
- Region
- Kent
- Guarantee
- A 12-month guarantee
- Quotes
- A fixed quote before we start
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Aftercare for building managers
Regular inspection catches problems early. Specifically:
- Check with the data sheet before painting over fire sealant
- Make fire stopping part of every scope that crosses a fire-resisting wall
- Keep product data and details in the fire safety file
- Agree the fire-stopping specification before services go in
Never top up a fire seal with foam, ordinary silicone or filler. A repair should use the original product, installed the same way unless the designer specifies otherwise.
Ask every contractor who works in risers or voids to report openings they create. Small habits like this stop openings building up.
Cost factors for service penetrations
Your fixed quote is built from the real scope. It allows for:
- Distance, for remote addresses
- Specialist products, such as fire-rated or hygienic sealants
- Working within restricted access windows
- Joint width, depth and condition
The price depends on the quantity of joints, what has to come out first and the access. Call for a quote when you are ready.
Details that help us quote
However big the job, the same details help:
- Any specification or named product
- Where the site is, with the postcode
- What the building is and how it’s used
- A wide shot and a close-up of the area
The quickest route to a quote is a few photographs and the site postcode. Send them through the quote form, or call the office on 01277 525 020 or email drawings and photos if you’d rather talk the job through.
Nearby places to Northfleet Green
What else we do in Northfleet Green
On site: what to expect
In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each section is protected, cleaned back and sealed, then reopened once the sealant allows before the next one starts. Smaller jobs around Northfleet Green can be grouped with others nearby. You will have a fixed quote before work starts.
- We start with your penetration schedule, drawings or specification.
- Access, permits and the order of areas are agreed with the site team.
- We compare every service penetration with its tested detail before sealing.
- Foam, ordinary sealant and debris come out so the seal starts clean.
- Backing and fire-rated sealant are installed to the detail and tooled.
- Anything outside the detail is reported to you rather than sealed.
Preparing the site
- For older buildings, check the asbestos register before work
- Have the specification and drawings to hand
- Tell us which areas need to stay in use
Getting a fixed quote
Need a figure for a tender or a budget? We’ll quote against your scope and drawings you can plan around. For a chat about it beforehand, call 01277 525 020 or use the quote form.
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Your questions answered
Can you work on a hospital site such as Gravesham Community Hospital?
Yes, healthcare and care buildings are part of our work. We follow the site’s permits, sign-in and infection-control procedures in every area.
How does the move away from BS 476 affect penetration seals in Northfleet Green?
From 2 September 2029, Approved Document B drops its BS 476 references in favour of BS EN 13501-2 classification, with transitional arrangements. Whichever applies, we install the specified product to its tested detail; the specification is for the designer to set.
What hours do you work?
Give us your site hours and any access windows in your enquiry, and we’ll plan around them. Our office runs Monday to Friday, 8am until 5pm.
Does weather matter for sealant work?
It can, when the joints are outside. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so external work may be moved if conditions aren’t right. Internal work is far less affected.
Can the sealant be colour-matched?
That depends on the product. Some ranges are wide, others limited, so the available colours are confirmed with the quote.
How long before the joints can be used?
Curing time varies by product, and we confirm it on the day.
How long will the new sealant last?
There isn’t a single answer, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular inspection is the best way to catch problems early.
Site staff or a sealant specialist?
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.
Putting right a botched joint often costs more than sealing it well at the start, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
Common problems we fix in Northfleet Green
Physical damage is another reason seals stop doing their job. Seals get knocked during maintenance, cut back to add a cable or pulled out when services are swapped and the opening isn’t always resealed.
What tends to prompt an enquiry:
- Snag lists that include open service penetrations
- Openings left by services added after handover
- Expanding foam used as fire stopping
- Seals that don’t match their tested detail
Residences at universities like University of Greenwich (3.4 miles north-west of Northfleet Green) have compartment walls that must be resealed whenever services change.
Before you book anyone
- The named product and why it was chosen
- What site paperwork they can supply
- What level of public liability insurance do they hold?
- How the existing material will be dealt with
How the job changes by surface
Risers and ceiling voids
Openings above suspended ceilings are easy to miss. We work through the areas on your schedule methodically.
Masonry and concrete
Core-drilled holes are neat; broken-out ones rarely are. The gap is measured at the widest point against the detail’s limits, and any outside it are raised with you.
Compartment walls and floors in Northfleet Green
There are several hotels within about 2 miles of Northfleet Green. In hotels, bedroom and corridor walls are normally fire-resisting, so services added in a refit need sealing with the specified product. Central London is about 19 miles from Northfleet Green. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls.
For a hotel such as Tollgate Hotel, 1 mile to the east of Northfleet Green, penetration seals are worth checking after any refit or services upgrade. Workshops and IT rooms at colleges like North West Kent College (2.8 miles north-east of Northfleet Green) are re-serviced often, leaving penetrations to seal.
Northfleet Green is about 1 mile south of Northfleet, in Kent. Any commercial site in Northfleet Green is covered, whether it’s a single job or part of a planned programme. We work across 931 places in Kent, large and small. We also cover London, some 19 miles away.
Postcode districts covered here: DA13 and DA11. Streets here include Downs Road and New Barn Road, and sites on any of them can send details for a fixed quote. Nearby places we also cover include Southfleet (1 mile west), Painters Ash (1 mile north), Istead Rise (1 mile south-east), Hook Green (1 mile west) and Springhead (1 mile north). Nearby towns on our patch include Maidstone (13 miles south-east), Dartford (5 miles west), Sevenoaks (11 miles south-west), Tonbridge (15 miles south), Swanley (7 miles west) and Kings Hill (10 miles south).
Around Northfleet Green
Around Northfleet Green, our work takes us to commercial buildings near Black Lion pub, Northfleet School for Girls and Saint George's Church of England School. Northfleet Green’s nearest station is Ebbsfleet International station, about 2 miles north. Nearby you’ll also find Gravesham Museum (2.3 miles north-east) and Bluewater (3.3 miles north-west). For a walk, there’s Sawyers Lake.