Fire Stopping in Coldblow
Fire stopping for Coldblow, from a contractor working since 2005. Fully insured, with a 12-month guarantee.
- Fire seals cut back for extra cables and never reinstated
- Unsealed joints where partitions meet the slab
- Seals that don’t match their tested detail
Fire stopping for Coldblow sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Why it’s worth doing now in Coldblow
A seal that doesn’t match its tested detail gives false comfort. Correcting it means cutting it out and starting again with the specified product, so it makes sense to get it right first time. Getting scaffold, permits or access booked in Coldblow takes effort, so it makes sense to deal with every failing joint while access is in place.
Pricing service penetrations depends on quantities, condition and access, plus any specification you are working to. Ask us for a fixed quote.
What you get with us
- Over 20 years of commercial sealing
- 12-month guarantee on workmanship
- Joints cleaned back to sound surfaces
- CSCS-carded applicators
Read how commercial sealant jobs are priced and how we’re accredited.
Fire stopping in Coldblow
Every service that crosses a compartment wall or floor leaves an opening, and that opening needs sealing to hold back fire and smoke. Our part is installing fire-rated and intumescent sealant at those openings and along linear gaps, where the specification calls for it. We work to the product’s tested detail for every seal. We work on small duct penetrations where the tested detail allows, joints between fire-resisting walls and floors and pipe penetrations, and the failures we are asked to look at most are unsealed openings around new pipes and cables and builders’ foam or ordinary silicone in compartment walls. A specialist sealant contractor works differently from a general builder: on jobs in Coldblow, preparation and product choice get the time they need.
London has many occupied offices, blocks and mixed-use buildings where services are added and rerouted all the time. Each service penetration gets fire-rated or intumescent sealant if that’s what is specified, laid to the product’s tested arrangement.
Our workmanship is guaranteed for 12 months, in Coldblow as everywhere else we work. If our installation lets you down in that time, we return and fix it.
- Location
- Coldblow (DA5)
- Wider area
- Greater London
- Cover
- A 12-month guarantee
- Quote
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
FAQs: Coldblow
Will you take on work at estates like Old Bexley Business Park, close to Coldblow?
Yes. Estates, retail parks and business parks around Coldblow, Old Bexley Business Park among them, are all within reach. To start, just call 01277 525 020 or email the details over with the unit, the joints involved and your access times.
Could you schedule work at a campus like University of Greenwich Avery Hill Campus for the vacation?
Yes. Education sites usually want the work in vacations or in phases during term, and we plan to suit. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.
Is the work guaranteed?
Yes. The 12-month guarantee covers our preparation and application, though not damage or work by other trades.
What do you charge?
There isn’t a price list, because every site is different. Send photos or drawings and we will price it at a fixed figure.
Can you quote from photos?
It depends on the job. Straightforward work can often be priced from photos and measurements, and bigger or more complex jobs usually get a visit.
Can you tell us what fire stopping our building needs?
No. The specification comes from your designer, fire engineer or building control. Our role is fitting the specified fire-rated sealant, following the maker’s tested details.
Can the sealant be colour-matched?
That depends on the product. Some ranges offer many colours, others very few, so the available colours are confirmed with the quote.
Fire stopping in Coldblow: the local picture
Fire stopping of openings and penetrations in England falls under 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. Either way, we install the specified product to its tested detail. There are three care or nursing homes within about 2 miles of Coldblow. In a care home, any new pipe or cable through a fire-resisting wall should be sealed to the specified detail.
On a hospital site such as Erith and District Hospital (2.7 miles north of Coldblow), fire-rated sealant goes in where the specification calls for it, with the work planned around the estates team’s permits. Offices at parks like Old Bexley Business Park, 0.6 miles to the north-west of Coldblow, are re-cabled with each new tenant, and compartment walls need sealing afterwards to the tested detail.
Coldblow is about 3 miles east of Sidcup, in Greater London. If you are looking for fire stopping in Coldblow, we can help, as we do across Greater London. 764 places across Greater London fall within our area, including Coldblow. For work in that direction, see our London page (12 miles or so).
Business premises anywhere in DA5 are within our area. Among the streets we cover are St Mary's Road, Dartford Road and Wansunt Road, and sites on any of them can send details for a fixed quote. Just outside Coldblow, we also work in Joyden's Wood (1 mile south-east), Bowmans (1 mile east), North Cray (1 mile south-west), Crayford (1 mile north-east) and Wilmington (1 mile south-east). Nearby towns on our patch include London (12 miles west), City of Westminster (15 miles west), Marylebone (14 miles north-west), St Pancras (14 miles north-west), Shoreditch (12 miles north-west) and Walthamstow (13 miles north-west).
What’s near Coldblow
We work on buildings around The Old Wick pub, St Columba's Catholic Boys' School and Braeburn Park. For rail, the closest station is Bexley station, roughly 0.6 miles west of the centre. Well-known places in the area include Stone Castle (5 miles east) and Bexley Museum (0.7 miles north). For a walk, there’s Wansunt Pit and Summer Hill.
Aftercare for building managers
A few simple habits keep the new joints working:
- Keep product data and details in the fire safety file
- Get seals inspected before ceilings and boxing close
- Make fire stopping part of every scope that crosses a fire-resisting wall
- Flag new cables with no seal around them
New services after handover are a common way fire stopping gets breached. A short check at the end of each job saves a long hunt later.
Ask every contractor who works in risers or voids to report openings they create. It costs little and catches breaches early.
What we can’t put right
We check first that sealant really is the fix. It isn’t the answer for:
- Signing off or certifying a building’s fire stopping
- Openings that need collars, wraps, batts or boards rather than sealant
- Deciding what a wall or floor needs, which belongs to the designer
Not sure which it is? You can phone 01277 525 020 or email us and we’ll tell you honestly before you book.
Surfaces we seal
- Service gaps in risers
- Small duct penetrations where the tested detail allows
- Linear gaps at wall heads
- Cable penetrations
- Joints between fire-resisting walls and floors
- Pipe penetrations
Towns and villages near Coldblow
More services for Coldblow
For managing agents and facilities managers
We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. Coldblow can form part of a wider programme.
We work for building owners and managing agents on everything from one building to a spread of sites. One quote can cover more than one site, which keeps the paperwork simple.
Common problems we fix in Coldblow
Fire stopping can get squeezed at the end of a programme, or done by whoever is on site. That is how unsuitable products and improvised details end up in compartment walls, which then have to be put right.
Common reasons buildings call us in:
- Openings left by services added after handover
- Fire sealant pulled out of the opening
- Expanding foam used as fire stopping
- Fire-stopping items raised at inspection or handover
At a university such as University of Greenwich Avery Hill Campus, 3.7 miles to the west of Coldblow, labs, lecture blocks and residences are re-serviced often, so penetration seals are best checked after M&E work.
Questions to ask before you book
- How the joint faces will be prepared and primed
- Their public liability cover
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- Health and safety accreditation such as CHAS
How a job runs
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. All of Greater London is in the ULEZ, and kerbside space in Coldblow can be scarce. Let us know about any on-site parking or loading arrangements when you send the job details.
- 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.
- Where the detail needs backing, it goes in at the stated depth.
- Fire-rated or intumescent sealant goes in around the services and is tooled off.
- Completed areas are checked with you, with the records agreed when we quoted.
Before we start on site
- Clear stock, furniture or equipment away from the joints
- Let us know about inductions and permits
- Send your site hours and access windows
Request a quote
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price the work to it. For smaller jobs, photographs and a description will do.