Fire-rated sealing and fire stopping in Hartley, Kent
Fire stopping in Hartley, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.
- Unsealed penetrations discovered above suspended ceilings
- Fire sealant pulled out of the opening
- Head-of-wall gaps with no fire seal
Fire stopping across Hartley
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Commercial clients in Hartley
If you look after buildings for someone else, you need clear quotes and clear reporting. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.
As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.
Fire stopping in Hartley
The test standards are BS EN 1366-3 for penetration seals and BS EN 1366-4 for linear joints and the results are classified to BS EN 13501-2. A rating such as EI 60 only holds when the product is installed as it was tested. So our job is to reproduce that arrangement faithfully. Most enquiries involve snag lists that include open service penetrations and open linear gaps along the top of fire-resisting walls, on pipe penetrations, cable penetrations and linear gaps at wall heads. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Hartley, that means joint design, primers and backing rod as standard.
Fire-rated sealing in a place like Hartley is typically a single building at a time. With the specification and photographs of the gaps, we can give a fixed quote and bring the right products.
Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.
- Location
- Hartley (DA3)
- Region
- Kent
- Cover
- 12 months on our workmanship
- Price
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Places near Hartley
What else we do in Hartley
Quoting for work in Hartley
We price every job individually. The main factors are:
- The product specified
- Working within restricted access windows
- Quantities, in metres or numbers
- Site requirements such as inductions and permits
A quote for service penetrations depends on quantities, condition and access, and any specification that applies. Call for a quote.
Sending details for a quote
For an accurate fixed quote, we need a clear picture of the site. Useful things to include:
- The product your specification calls for
- Drawings or a marked-up plan, if available
- Anything awkward about access or site hours
- Clear photographs of the problem areas
Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, ring 01277 525 020 or email drawings and photos.
FAQs: Hartley
Is Hartley off your patch?
No. Small places get the same service as large ones. We work across Greater London and the South East. Good photos up front let us bring everything on the first visit.
Could you schedule work at a campus like University of Greenwich for the vacation?
Yes, holiday working periods are the norm on campus jobs. Let us know which documents your site asks for, and we will confirm them alongside the quote.
How do I request a quote?
The quote form is the simplest route, though you can also call 01277 525 020 or use the quote form. Photos, drawings or a joint schedule help us quote quickly.
Do you design or specify fire stopping?
No, that isn’t our role. With the designer’s details in hand, we can price the sealant elements and point out anything needing another product.
Do you work in Scotland as well as England?
Our work covers Greater London, the South East and every Scottish council area. Scotland’s non-domestic Technical Handbook, clause 2.1.14, expects service penetrations to be fire stopped to at least the wall or floor’s fire resistance, using products tested for their end use.
What changes on 2 September 2029?
For buildings in England, Approved Document B removes BS 476 references from 2 September 2029. Products are then judged on BS EN 13501-2 classifications. Scotland follows its own Technical Handbook.
What if there’s asbestos in the old mastic?
Some older mastics, especially in pre-2000 buildings, can contain asbestos. We check the asbestos register before cutting out old sealant in an older building, and if asbestos is suspected, work stops until it’s tested. Removing asbestos is a job for asbestos specialists, not us.
Our process
In a busy building, the work is phased so only one area is out of use at a time. Each section is protected, cleaned back and sealed, then reopened once the sealant allows before we move to the next. Work in places the size of Hartley is planned as a single visit where we can. Clear photographs and measurements help us bring the right products.
- First we go through the drawings, schedule or specification for the seals and raise any questions before we price.
- Every penetration is compared with its detail: wall or floor type, service, gap size and depth.
- Unsuitable fillers and loose debris are taken out of each opening.
- We fit the backing the detail asks for, to the stated depth.
- We apply the specified sealant to the depth and around the services as the detail shows.
- Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.
What we need from you
- Flag any permit to work we will need
- Tell us your opening times and when work is allowed
- Point out parking and an unloading spot
Getting a fixed quote
Let us know the site, the scope and your timescale, and a fixed quote will follow. To get it moving, call the office on 01277 525 020 or email the details over.
Related advice
Fire stopping in Hartley: the local picture
Hartley lies roughly 19 miles out from central London. Office refits around the commuter belt bring new cabling through fire-resisting walls. For England, the fire stopping of penetrations is dealt with in Approved Document B. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. Either way, we install the specified product to its tested detail.
For a building at a site such as Fawkham Business Park, which lies north-west of Hartley, a check of penetration seals after each fit-out is good practice. For a building such as Church of Saint Mary, new heating or data runs are the usual reason penetrations need sealing.
Hartley is about 4 miles south-west of Northfleet, in Kent. We cover Hartley and the rest of Kent, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Hartley is one of 931 places we cover in Kent. For work in that direction, see our London page.
We take on service penetrations across the DA3 postcode area, for business premises of every kind. Buildings on Church Road, Dickens Close and Stack Lane are within our area for service penetrations. Close to Hartley, our area also takes in Longfield (1 mile north), New Barn (1 mile north-east), Longfield Hill (1 mile east), New Ash Green (1 mile south) and Nash Street (2 miles east). Nearby towns on our patch include Maidstone (13 miles south-east), Dartford (5 miles north-west), Sevenoaks (9 miles south-west), Gravesend (4 miles north-east), Tonbridge (13 miles south) and Northfleet (4 miles north-east).
Local landmarks in Hartley
Recent enquiries here include premises near Railway Tavern, Rectory Meadow and Longfield Academy and the streets around them. The closest station to Hartley is Longfield station, about 0.8 miles north-west. Nearby you’ll also find Darent Valley Hospital (4 miles north-west) and Stone Castle (4.1 miles north). Not far away are Sawyers Lake.
Should maintenance staff do it?
What you see is the finished bead, but most of the work is hidden. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.
For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
What the job involves on each surface
Drylining partitions
Service holes through plasterboard are frequently oversized or ragged. If the gap exceeds the tested range, sealant alone won’t do and we will tell you what the detail says instead.
Cables and cable bundles
Data cabling added after handover is a regular cause of open service penetrations. Openings around new cables are resealed to the detail, and we tell you if the bundle exceeds what sealant covers.
Do you need fire stopping in Hartley?
Some seals fail because the wrong product went in: builders’ foam or ordinary silicone used to fill a hole. The opening looks sealed but has no fire test evidence behind it, so it has to come out.
What tends to prompt an enquiry:
- Fire seals cut back for extra cables and never reinstated
- Service penetrations left open after M&E works
- Fire-stopping items raised at inspection or handover
- Openings found when ceilings come down for a refit
In a school such as Hartley Primary Academy, fire-rated sealant goes in around service penetrations where it is specified.
Before you book anyone
- Who will actually carry out the work
- What the guarantee covers, and for how long
- Their public liability cover
- Is the sealant right for the movement and the substrate?