Fire Stopping in West Hampstead
Fire stopping in West Hampstead, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.
- Fire-stopping items raised at inspection or handover
- Expanding foam used as fire stopping
- Improvised or mixed-product fire seals
Fire stopping for West Hampstead sites
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
How we handle fire stopping in West Hampstead
Opened ceilings and riser doors often reveal service openings nobody sealed. If a specification already covers those walls and floors, we can reseal to it. With no specification in place, the first step sits with your designer or fire engineer, not with us. We work on small duct penetrations where the tested detail allows, linear gaps at wall heads and joints between fire-resisting walls and floors, and what we are called in for most is old intumescent sealant that has split away and improvised or mixed-product fire seals. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in West Hampstead, 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. Where the specification names fire-rated sealant, it goes in exactly as the manufacturer’s test evidence shows for that wall or floor.
The 12-month guarantee covers our workmanship: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Location
- West Hampstead (NW3, NW6, NW2)
- Region
- Greater London
- Guarantee
- 12 months on our workmanship
- Quote
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
How the quote is worked out
Quotes vary with the job. Expect it to depend on:
- Phasing around occupants
- Joint width, depth and condition
- Distance, for remote addresses
- The site’s rules and procedures
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.
What we need to price the job
The more we know, the firmer the quote. When you get in touch, include:
- The type of building and who uses it
- The site address and postcode
- Specification clauses that apply
- Asbestos survey details if the building is older
Send us photos, drawings or a joint schedule and a fixed quote comes back to you. If the job needs a look first, we’ll arrange a site visit.
Fire stopping in West Hampstead: the local picture
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. West Hampstead has four care or nursing homes no more than 2 miles away. Care settings depend on compartmentation, so service penetrations made during maintenance or refurbishment need sealing with the specified product.
Wherever services are added at a hospital such as Royal Free Hospital (to the east of West Hampstead) the compartment line has to be made good with the specified product. Workshops and IT rooms at colleges like City of Westminster College, 1.8 miles south of West Hampstead, are re-serviced often, leaving penetrations to seal. For an estates team at a campus like Regent's University London (2.4 miles south-east of West Hampstead), summer M&E works are usually followed by a round of penetration sealing.
West Hampstead is about 3 miles north-west of City of Westminster, in Greater London. Looking for fire stopping in West Hampstead? We can help. West Hampstead is one of 764 places we cover in Greater London for service penetrations. For work in that direction, see our London page.
We take on service penetrations across the NW3, NW6 and NW2 postcode area. We cover commercial and managed buildings on Mill Lane, Acol Road and Ajax Road. Main routes into West Hampstead include the A502. Sites close to West Hampstead are covered too, including Fortune Green (1 mile west), Hampstead (1 mile east), Greenhill (1 mile east), Childs Hill (1 mile north-west) and Vale of Health (1 mile north-east). Bigger towns within reach include London (6 miles south-east), City of Westminster (3 miles south-east), Marylebone (3 miles south-east), Kensington (4 miles south), St Pancras (4 miles south-east) and Shoreditch (5 miles east).
Near you in West Hampstead
Around West Hampstead, our work takes us to commercial buildings near South Hampstead High School, Holly Bush pub and Kilburn Grange Park and the streets around them. West Hampstead has its own railway station: Finchley Road & Frognal station. Nearby you’ll also find Isokon Gallery (1.2 miles east) and New End Hospital (0.5 miles north-east). Not far away are Parliament Hill and Westbere Copse.
When something else is needed
Honesty saves time and money. Fresh joints won’t solve:
- Large openings beyond what any sealant detail covers
- Designing or specifying fire stopping, which sits with the designer or fire engineer
- Signing off or certifying a building’s fire stopping
Not sure which it is? You can call the office on 01277 525 020 or email us and we will tell you honestly before you book.
Joints and surfaces we work on
- Cable penetrations
- Pipe penetrations
- Joints between fire-resisting walls and floors
- Service gaps in risers
- Small duct penetrations where the tested detail allows
- Linear gaps at wall heads
Maintenance after handover
Sealant joints are maintenance items, and their life depends on movement, exposure, cleaning and use. We suggest:
- File the specified details where the next contractor can find them
- Have penetrations checked while they can still be seen
- Ask which product is in place before decorating
- Check risers and ceiling voids after each round of works
Add risers, plant rooms and ceiling voids to routine fire-stopping checks. Look for cracks, unsealed new cables and gaps that have been enlarged.
Regular walk-rounds of service areas are worth the time. Catching a damaged seal early keeps the fix small.
Site staff or a sealant specialist?
Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we will confirm the paperwork you need with the quote.
A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
What happens if it’s left?
An unsealed opening affects more than fire safety: they also carry noise, draughts and smells between rooms. The specified fire seal closes the gap for all of these, and the other benefits follow. Access in London is hard enough to arrange once, so while access is arranged it pays to renew all failing joints, not just the worst.
Access can matter as much as the joints themselves: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.
Why choose Mastic Doctor in West Hampstead
- One phone line for London, the South East and Scotland
- Constructionline member
- Over 20 years of commercial sealing
- CSCS-carded applicators
Read our cost guide or our accreditations.
Nearby places to West Hampstead
Also in West Hampstead
How a job runs
Diagnose, treat, sign off: every visit follows that pattern. First comes an inspection and agreement on scope, then we prepare and seal each joint with the specified product, and the job ends with a walk round and sign-off. For a job in West Hampstead, access comes first: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Give us the hours we can be on site and we will schedule to suit.
- The specification and schedule come first, so we know which details apply.
- Access, permits and the order of areas are agreed with the site team.
- Each opening is checked for wall or floor type, service, gap and depth.
- Unsuitable material is removed and the opening cleaned so the seal starts clean.
- The specified backing and sealant go in to depth and are finished neatly.
- We tell you about openings that need a different product.
Getting the site ready
- Have the specification and drawings to hand
- Send your site hours and access windows
- Tell staff and tenants when we will be in
Request a quote
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we will return a fixed quote that you can work with. If you have questions first, call 01277 525 020 or send details through our quote form.
Advice
FAQs: West Hampstead
Can you work in a care home near West Hampstead with residents in?
Yes. We agree rooms and times with the manager and work a few areas at a time. We follow the home’s own procedures throughout.
Can you work on a hospital site such as Royal Free Hospital?
Yes. Healthcare sites are among the places we work. Work is phased so departments keep running, under the site’s own rules.
When is resealing likely to be due?
Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.
How do I request a quote?
You can use the quote form on this site; alternatively, call the office on 01277 525 020 or email the details over. Photos, drawings or a joint schedule help us quote quickly.
How long does a typical visit take?
We plan the time on site around your programme and access. We’ll give you an estimate of time on site when we quote.
Do you cover West Hampstead?
Yes. West Hampstead falls within our area, and the simplest way to start is to give us a call on 01277 525 020 or use the quote form.
Will you quote for a small job?
Single areas, one-off repairs and whole buildings are all quoted the same way: details, then a fixed price, then sealing, then a 12-month guarantee.