Fire-rated sealing and fire stopping in Cold Harbour, Kent
Fire-rated and intumescent sealing of service penetrations and linear gaps in Cold Harbour and across Kent. CHAS accredited and fully insured, with a 12-month guarantee.
- Snag lists that include open service penetrations
- Unsealed openings around new pipes and cables
- Expanding foam used as fire stopping
Fire stopping for Cold Harbour 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 Cold Harbour
Penetration seals are fire tested to BS EN 1366-3 and linear joint seals to BS EN 1366-4. A rating such as EI 60 only holds when the product is installed as it was tested. Reproducing the tested arrangement on site is the part we take care of. We work on service gaps in risers, small duct penetrations where the tested detail allows and cable penetrations, and what we are called in for most is unsealed openings around new pipes and cables and damaged fire seals in risers and voids. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Cold Harbour is the same: the right product in a properly prepared joint.
For a smaller site near Cold Harbour, we plan to do all the penetrations in one go, with the specification and photos sent in advance. We install to the specification and the manufacturer’s guidance, leaving design and sign-off with the designer and building control.
Building owners and contractors get the same cover: a 12-month guarantee on our workmanship. It doesn’t extend to damage, faults in the building or work by others, and we are upfront about that.
- Location
- Cold Harbour (ME17)
- Region
- Kent
- Guarantee
- 12 months on every job
- Quote
- A fixed quote before we start
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
Why it’s worth doing now in Cold Harbour
Leave a penetration open and smoke and fire can cross into the next compartment far earlier than intended. Putting it right is usually a modest job when the openings are accessible. Left until ceilings are closed or a tenant moves in, the same work costs more access and more disruption. One visit to deal with every failing joint makes more sense than several trips to a place like Cold Harbour, rather than one at a time. Send photographs of each area and we’ll quote for the lot.
What a job costs comes down to how many linear metres there are, how much old material needs removing and how the joints are reached. Call for a fixed quote once you have the details.
Why us?
- CHAS accredited contractor
- Constructionline member
- Old sealant cut out, never sealed over
- One phone line for London, the South East and Scotland
Take a look at how commercial sealant jobs are priced and how we’re accredited.
Nearby places to Cold Harbour
Other services in Cold Harbour
How a job runs
Working in a building that stays open takes some planning. The work area is signed and kept contained, keep walkways clear and work section by section so the rest of the building stays in use. For work around Cold Harbour, we aim to finish in one visit, so we ask for photos and rough sizes first. That way the right products come on the day.
- First we go through the drawings, schedule or specification for the seals and raise any questions before we price.
- On site, each opening is checked against the tested detail it is meant to follow.
- 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.
- If an opening needs something other than sealant, we tell you instead of improvising.
Getting the site ready
- Point out parking and an unloading spot
- Send your site hours and access windows
- Clear stock, furniture or equipment away from the joints
Get a fixed quote
Quotes are fixed against the scope you send, so the cost is agreed before work starts. To ask for one, give us a call on 01277 525 020 or email the details over.
Advice
For managing agents and facilities managers
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.
Whether you are a managing agent, a property factor or an owner’s representative: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.
Your questions answered
Will you plan work around the academic year at somewhere like Canterbury Christ Church University?
Yes. Education sites normally want the work in vacations or in phases during term, and we plan to suit. Let us know which documents your site asks for, and we’ll confirm them alongside the quote.
Is Cold Harbour too small for you to travel to?
No. Small places get the same service as large ones. We cover Greater London and the counties of the South East. Good photos up front let us bring everything on the first visit.
Is it fine to apply new sealant on top of old?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, because fresh silicone will not bond with aged silicone.
Can you handle several sites?
Yes. A group of buildings can go on one quote, and you deal with one contact throughout across South East England, Greater London and Scotland.
Can you seal any opening with fire-rated sealant?
No. Each fire-rated sealant is tested for particular services, gap sizes and substrates. Outside that, a different product is needed, specified by your designer.
Is the work guaranteed?
Yes. Our workmanship is backed for 12 months.
Can you follow the specification on our project?
Yes. The specification and the manufacturer’s installation guidance are what we work to, and any queries are raised before we start.
When to bring in a specialist
Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
Redoing a failed joint usually costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
After the work
Once the work is signed off, these steps help:
- Record which product was used where
- Keep general-purpose fillers away from compartment walls
- Put resealing into every M&E and fit-out package
- Ask the designer to confirm details early on refits
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.
On fit-outs, get the fire-stopping specification agreed before the services go in. Details can then be picked to suit the actual pipes, cables and ducts, and installation follows the programme.
Fire stopping around Cold Harbour: points for this area
For England, the fire stopping of penetrations is dealt with in Approved Document B. 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. What we install is set by the specification, and it goes in to the tested detail. Cold Harbour lies roughly 42 miles out from central London. Business park offices in the commuter belt are refitted as tenants change, and each fit-out adds services through compartment walls.
In a building such as Church of St Lawrence, any service penetration through a fire-resisting wall should be sealed to the specified detail. For an estates team at a campus like Canterbury Christ Church University, 4.5 miles to the north-west of Cold Harbour, summer M&E works are usually followed by a round of penetration sealing.
Cold Harbour is about 7 miles south-west of Faversham, in Kent. We send applicators to Cold Harbour for service penetrations. Our Kent coverage takes in 931 places, from busy centres to rural villages. There’s a separate page for London, roughly 42 miles from Cold Harbour.
Business premises anywhere in ME17 are within our area for service penetrations. Sites close to Cold Harbour are covered too, including Warren Street (1 mile north-west), Payden Street (1 mile north-west), Lenham Heath (2 miles south-west), Charing Heath (2 miles south) and Lenham Forstal (2 miles south-west). Further afield, our area takes in Maidstone (11 miles west), Ashford (8 miles south-east), Canterbury (14 miles east), Sittingbourne (7 miles north), Whitstable (14 miles north-east) and Faversham (7 miles north-east).
What’s near Cold Harbour
Recent enquiries here include premises near The Harrow pub and Spuckles and Kennelling Woods. The nearest railway station is Charing station, roughly 2.3 miles south of the centre. A little further out are Newnham Castle (3.4 miles north).
What affects the price in Cold Harbour
These are the things that shape the price:
- How much there is to seal
- Phasing around occupants
- Whether old sealant has to be cut out first
- Which sealant the job calls for
Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.
Sending details for a quote
For an accurate fixed quote, we need a clear picture of the site. Send us:
- How the joints are reached, and at what height
- Rough lengths or quantities, or drawings if you have them
- The site address and postcode
- Specification clauses that apply
Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. The easiest way is to ring 01277 525 020 or email a schedule or drawings.