Fire-rated sealing and fire stopping in Lisson Grove, Greater London
Looking for fire stopping in Lisson Grove? It’s simple: send details, get a quote, we seal, guaranteed.
- Open linear gaps along the top of fire-resisting walls
- Fire sealant pulled out of the opening
- Seals that don’t match their tested detail
Fire stopping near Lisson Grove
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
What sealant work can’t fix
Not every problem is a sealant problem, and we’re upfront when that’s the case. These need a different solution:
- Plastic pipes whose detail calls for a collar or wrap
- Approving the work on behalf of building control
- Gaps in walls that were never built as compartment walls
Not sure which it is? You can call the office on 01277 525 020 or email drawings and photos and we’ll tell you honestly.
Surfaces we seal
- Service gaps in risers
- Linear gaps at wall heads
- Pipe penetrations
- Small duct penetrations where the tested detail allows
- Joints between fire-resisting walls and floors
- Cable penetrations
Fire stopping in Lisson Grove
Where pipes, cables and other services cross a compartment wall or floor, the opening around them has to be closed so fire and smoke can’t move between compartments. Our part is installing fire-rated and intumescent sealant at those openings and along linear gaps, where the specification calls for it. Each seal follows the manufacturer’s tested detail. If you are dealing with expanding foam used as fire stopping and unsealed penetrations discovered above suspended ceilings, we can help. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Lisson Grove, that means joint design, primers and backing rod as standard.
Fit-outs and M&E works in London buildings often leave service penetrations open behind ceilings and in risers. Fire-rated sealant goes in where it’s the specified item; where a collar, wrap or batt is called for instead, we flag it.
Our 12-month guarantee is about workmanship, not wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we spell out the cover before we begin.
- Where
- Lisson Grove (NW8, W1H, W2)
- Region
- Greater London
- Cover
- 12 months on our workmanship
- Quotes
- Quoted before any work starts
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Nearby places to Lisson Grove
What else we do in Lisson Grove
When to call us in Lisson Grove
Some seals fail because the wrong product went in: expanding foam or a general-purpose sealant pushed into a gap to tidy it. The opening looks sealed but has no fire test evidence behind it.
Site and facilities staff are often the first to spot these:
- Fire-stopping items raised at inspection or handover
- Fire-rated sealant that has cracked or shrunk back
- Non-fire-rated filler around services
- Improvised or mixed-product fire seals
Large healthcare estates like Nightingale Hospital, under half a mile south-east of Lisson Grove, change their services often, so penetration seals are worth checking after M&E work.
What your quote should include
- Can the work be phased to keep areas open?
- Will CSCS-carded applicators be on site?
- The named product and why it was chosen
- Their public liability cover
Aftercare for building managers
Problems stay small when the joints are checked regularly. Specifically:
- Record which product was used where
- Leave fire sealant to cure fully before covering it
- Treat an open penetration as a priority repair
- Keep general-purpose fillers away from compartment walls
After the work, brief anyone else working in the area that the openings are now sealed. If a seal has to be opened for a new service, it should be reinstated to the same detail using the same product.
Make reporting new openings part of every permit to work in service areas. It costs little and catches breaches early.
Our process
Before any cutting starts, the area is protected: tape along each joint edge and covers over finishes, stock and equipment close by. The work itself usually takes longer where risers, ceiling voids or occupied floors have to be worked through in sequence, and our waste is bagged and taken away as we go. The ULEZ covers the whole of Greater London, and parking near a job is rarely simple. Let us know about any on-site parking or loading arrangements when you send the job details.
- 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.
- Mineral wool or other backing goes in wherever the detail asks.
- 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.
Before we start on site
- Send your site hours and access windows
- Warn occupants and staff about the work
- Tell us which areas need to stay in use
Quotes
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. If you have questions first, ring 01277 525 020 or use the quote form.
Advice
Lisson Grove: questions and answers
Can you take on a job at a hospital such as Nightingale Hospital?
Yes, hospitals are one of the sectors we cover. The estates team’s permit system and infection-control rules come first, and the work is planned around them.
Can you seal around new services in a hotel near Lisson Grove?
Yes, where fire-rated sealant is the specified product. Work is done room by room so the hotel keeps trading; design and sign-off stay with the designer and building control.
Do your applicators hold CSCS cards?
Yes. If you need card details for site access, tell us and we will confirm them with the quote.
What happens if old sealant might contain asbestos?
Managing asbestos is the dutyholder’s responsibility, so for older buildings we ask for the asbestos register first. If anything suspect turns up, we stop until it’s tested.
How much does the work cost?
We don’t publish prices, because every site is different. Send photographs or drawings and we’ll price it at a fixed figure.
Can you handle several sites?
Yes. Several buildings can share a single quote, with one point of contact.
Do you work to architects’ specifications?
Yes. We follow the specification, along with the manufacturer’s installation guidance, and we raise anything unclear before work begins.
Fire stopping around Lisson Grove: how the place shapes the job
In London buildings, frequent fit-outs and M&E changes are a common reason fire stopping gets breached. We seal to the specification and the product’s tested detail, working within the building’s permits. Approved Document B is the English guidance that covers fire stopping around openings and penetrations. The national BS 476 classes are due to drop out of it from 2 September 2029, leaving the European BS EN 13501-2 route, subject to transitional arrangements. Either way, we install the specified product to its tested detail.
In a retail centre such as O2 Centre, which lies north of Lisson Grove, any fire-resisting wall between units that is crossed by new services needs sealing to the tested detail. At a college such as City of Westminster College, 1 mile west of Lisson Grove, checking penetration seals after summer M&E works is good practice.
Lisson Grove is about 1 mile north-west of City of Westminster, in Greater London. Our applicators travel to Lisson Grove for work on service penetrations, handled exactly as we handle every other area. Across Greater London, 764 places are covered, including Lisson Grove.
We take on service penetrations across the NW8, W1H and W2 postcode area, for business premises of every kind. For a building on Hall Road, Park Road and Lodge Road or nearby, we can quote for service penetrations. Main routes into Lisson Grove include the A5 and A40, useful when we plan access and materials. Close to Lisson Grove, our area also takes in Paddington Green (1 mile south-west), Paddington (1 mile south), Little Venice (1 mile south-west), Connaught Village (1 mile south) and St John's Wood (1 mile north). Bigger towns within reach include London (4 miles south-east), Shoreditch (4 miles east), Walthamstow (8 miles north-east), Hoxton (4 miles east), Whitechapel (4 miles east) and Ruislip (11 miles west).
Around Lisson Grove
Recent enquiries here include premises near RIBA Library, St John's Wood Art School and Regent's Park, among other places. There’s a railway station in Lisson Grove itself: London Marylebone station. Well-known places in the area include Montfichet's Tower (3 miles east) and Maida Vale Hospital for Nervous Diseases (0.5 miles west). Not far away are The Long Water and Greville Place nature reserve.
What affects the price in Lisson Grove
What shapes the price:
- Removal of failed or old sealant
- Phasing around occupants
- Backing rod, priming and other preparation
- The product specified
Quantities, awkward access and phased working 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
A good diagnosis starts with the right details. Tell us:
- How the joints are reached, and at what height
- The product your specification calls for
- The postcode of the building
- Your programme or deadline
Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. To get it moving, give us a call on 01277 525 020 or send details through our quote form.
Why deal with it now?
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. Wait until ceilings close or areas are occupied and the same work becomes harder to reach. In a London building, a failed joint rarely affects only one party. Putting it right early is less disruptive than dealing with the consequences.
What a job costs comes down to the quantity of joints, what has to come out first and the access. Call for a fixed quote when you are ready.
Why choose Mastic Doctor in Lisson Grove
- Work carried out by CSCS-carded applicators
- Fully insured
- A fixed quote before work starts
- Over 20 years of commercial sealing
Read our cost guide or our accreditations.