Fire stopping in New Ash Green
Fire stopping for New Ash Green, from a contractor working since 2005. Fully insured and CHAS accredited.
- Penetration schedules that need working through
- Hidden openings found during inspections
- Damaged fire seals in risers and voids
Fire stopping in New Ash Green
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
When to bring in a specialist
There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.
The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.
Fire stopping in New Ash Green, done properly
For main contractors, our fire stopping package slots in after the M&E trades have finished in an area. To price a package, ring 01277 525 020 or email a schedule or drawings with the schedule or marked-up drawings alongside the manufacturer’s details. Tell us what records you need and we will confirm with the quote. If you are dealing with old intumescent sealant that has split away and unsealed penetrations discovered above suspended ceilings, we can help. Searching for sealant specialists in New Ash Green? We have been sealing commercial buildings since 2005, with CSCS-carded applicators.
Barn and farm-building conversions near places like New Ash Green 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.
We sign every job off with a 12-month guarantee. The promise is simple: if our work fails within that year, we put it right.
- Place
- New Ash Green (DA3, TN15)
- Region
- Kent
- Guarantee
- A 12-month guarantee
- Quote
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
Where services cross fire walls in New Ash Green
Approved Document B is the English guidance that covers fire stopping around openings and penetrations. References to the older BS 476 classes are being removed from it from 2 September 2029, after which the European classification, BS EN 13501-2, is the route, subject to transitional arrangements. We install whatever has been specified, to the product’s tested detail. Central London is about 20 miles from New Ash Green. Tenant changes on commuter-belt business parks mean regular fit-outs, and new services through compartment walls.
On estates like Heaver Farm Trading Estate, 0.7 miles south-west of New Ash Green, the wall between office and warehouse is often fire-resisting, and cables through it need the specified seal. In a building such as Parish Church of Saint Peter and Saint Paul, any service penetration through a fire-resisting wall should be sealed to the specified detail. On a hospital site such as Darent Valley Hospital, 5.2 miles to the north-west of New Ash Green, fire-rated sealant goes in where the specification calls for it, with the work planned around the estates team’s permits.
New Ash Green is about 5 miles south of Northfleet, in Kent. Across the DA3 postcode area, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. 931 places across Kent fall within our area, New Ash Green among them. For work in that direction, see our London page, about 20 miles away.
We take on service penetrations across the DA3 and TN15 postcode area, for business premises of every kind. Buildings on Church Road, Upper Street North and Upper Street South are within our area. Nearby places we also cover include Ridley (1 mile south-east), Hartley (1 mile north), New Street (2 miles south-east), Hodsoll Street (2 miles south-east) and Longfield Hill (2 miles north-east) for service penetrations. Nearby towns on our patch include Maidstone (12 miles south-east), Dartford (6 miles north-west), Sevenoaks (8 miles south-west), Gravesend (5 miles north-east), Tonbridge (12 miles south) and Northfleet (5 miles north).
Near you in New Ash Green
Recent enquiries here include premises near The White Swan Public House, Longfield Academy and Rectory Meadow. The closest station to New Ash Green is Longfield station, roughly 2.1 miles north of the centre. Well-known places in the area include Eynsford Castle (4 miles west) and Darent Valley Hospital (5.2 miles north-west).
Honest limits
Honesty saves time and money. New sealant won’t cure:
- Writing the fire-stopping specification
- Openings that need collars, wraps, batts or boards rather than sealant
- Reviewing a building’s overall fire safety
If in doubt, phone 01277 525 020 or send details through our quote form and we’ll say what we think before you book.
What we seal
- Cable penetrations
- Small duct penetrations where the tested detail allows
- Pipe penetrations
- Joints between fire-resisting walls and floors
- Service gaps in risers
- Linear gaps at wall heads
Surface by surface
Risers and ceiling voids
Openings above suspended ceilings are easy to miss. We follow your schedule area by area.
Metal pipes
Copper and steel pipes are a common service penetration for fire-rated sealant. Pipe diameter, annular gap, sealant depth and any pipe insulation all have to match the detail, so we check each one.
Also near New Ash Green
Also in New Ash Green
On site: what to expect
On arrival, we sign in, go through any site induction and check how permits are handled. Floors, finishes and fittings next to the joints are covered before any cutting starts, with the work itself normally taking longer where risers, ceiling voids or occupied floors have to be worked through in sequence. For a building around New Ash Green, tell us how to find it and who will meet us. Add it to your enquiry and we will build it into the plan.
- The specification and schedule come first, so we know which details apply.
- We plan the sequence of floors, risers and voids with you.
- 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
- Send asbestos survey details if the building is pre-2000
- Flag any permit to work we will need
- Send any specification or drawings in advance
Request a quote
We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To ask for one, ring 01277 525 020 or send details through our quote form.
Read more
What affects the price in New Ash Green
We price every job individually. The things that drive the figure:
- Which sealant the job calls for
- How much there is to seal
- Whether the work must be split into stages
- Removal of failed or old sealant
Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits, along with the time of year for external work.
Before you send an enquiry
There’s no need for a formal survey. These details are enough to start:
- Rough lengths or quantities, or drawings if you have them
- When you need the work done
- The site address and postcode
- Any specification or named product
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we will return a fixed quote you can plan around. For a chat about it beforehand, call the office on 01277 525 020 or email a schedule or drawings.
Questions about New Ash Green
Would you work within a site like Darent Valley Hospital?
Yes. Healthcare sites are among the places we 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 New Ash Green?
From 2 September 2029, Approved Document B drops its BS 476 references in favour of BS EN 13501-2 classification, with transitional arrangements. Our part doesn’t change: the specified product, to its tested detail.
Do you seal on top of existing sealant?
No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.
Do your applicators hold CSCS cards?
Yes. We use CSCS-carded applicators.
How do I request a quote?
You can use the quote form on this site; alternatively, phone 01277 525 020 or email a schedule or drawings. Include photographs or drawings if you have them.
What if there’s asbestos in the old mastic?
Asbestos is possible in some older mastics, particularly in buildings from before 2000. We check the asbestos register before cutting out old sealant in an older building, and work stops until any suspect material has been tested. We don’t remove asbestos-containing materials.
Do you guarantee your work?
Yes, for 12 months. If a joint fails because of how we installed it, we come back and put it right.
Aftercare for building managers
Regular inspection catches problems early. In particular:
- Record which product was used where
- Don’t let anyone top up a fire seal with the wrong product
- Settle who seals which penetrations at the start of a project
- Put resealing into every M&E and fit-out package
Keep the product data and installation details with the building’s fire safety information. Anyone resealing later needs to know which product and detail were used.
Write fire stopping into the scope of any work crossing a compartment wall or floor. Then the seal goes in while the area is open.