Fire Stopping in Colliers Wood
Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in Colliers Wood and the surrounding area. Send photos or drawings for a fixed quote.
- Old intumescent sealant that has split away
- Openings found when ceilings come down for a refit
- Improvised or mixed-product fire seals
Fire stopping for businesses in Colliers Wood
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Fire stopping around Colliers Wood: what changes locally
The area within 2 miles of Colliers Wood holds a number of hotels. Hotels are divided into compartments, and refurbishments that add pipes and cables through bedroom and corridor walls leave gaps to close. The 2 miles around Colliers Wood include five care or nursing homes. Care settings depend on compartmentation, so service penetrations made during maintenance or refurbishment need sealing with the specified product.
Campus buildings at universities such as Kingston University Roehampton Vale Campus, 3.8 miles west of Colliers Wood, see constant changes to data and services, and fire-rated sealant goes in around new penetrations where it is specified. Hotels like Antoinette Hotel (to the west of Colliers Wood) are refurbished in phases, and each phase can open up compartment walls.
Colliers Wood is about 5 miles south of Brompton, in Greater London. Across the SW17 postcode area, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. We work across 764 places in Greater London, from busy centres to rural villages. We also cover London, some 6 miles away.
We take on service penetrations across the SW17, SW19 and CR4 postcode area. Buildings on Acre Road, Boyd Road and Park Road are within our area for service penetrations. Nearby places we also cover include Tooting (1 mile north), Tooting Bec (1 mile north), Merton Abbey (1 mile south-west), Furzedown (1 mile north-east) and Eastfields (1 mile south-east) for service penetrations. A short drive away, we cover London (6 miles north-east), City of Westminster (7 miles north), Marylebone (7 miles north), Kensington (6 miles north), St Pancras (8 miles north) and Shoreditch (8 miles north-east).
Landmarks near Colliers Wood
Locally, jobs take us to sites close to Figge's Marsh, Ensham School and The Royal Standard pub. There’s a railway station in Colliers Wood itself: Tooting station. A little further out are Grove Hospital (0.6 miles north) and Wandle Industrial Museum (1.2 miles south). Green spaces nearby include Henman Hill and Myrna Close.
Fire stopping for commercial buildings in Colliers Wood
It helps to set out our role at the start. The designer, fire engineer or building control decides which fire stopping is required. What we bring is careful installation of the specified sealant, to the maker’s guidance in Colliers Wood and nearby. Site teams most often ask us about open linear gaps along the top of fire-resisting walls and service penetrations left open after M&E works, on small duct penetrations where the tested detail allows, pipe penetrations and joints between fire-resisting walls and floors. Looking for mastic applicators who cover Colliers Wood? Mastic Doctor has worked for contractors, FMs and building owners since 2005, CHAS accredited and a Constructionline member.
In London, higher-risk residential buildings under the Building Safety Act bring extra scrutiny of fire-stopping records. We install what the designer or fire engineer has specified, and if you need records of the work, tell us and we will confirm with the quote.
We stand by our work with a 12-month guarantee. It covers how we prepared and applied the sealant, and if something we did falls short, we return to it.
- Where
- Colliers Wood (SW17, SW19, CR4)
- Region
- Greater London
- Guarantee
- A 12-month guarantee
- Quote
- A fixed quote before we start
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Colliers Wood: questions and answers
Is College Fields Business Centre, near Colliers Wood, within your area?
Yes. Our area takes in Colliers Wood and its surroundings, with estates and business parks such as College Fields Business Centre included. Photos and a short description are enough for a first look.
Would you work within a site like St George's Hospital?
Yes, provided the work is planned with the site’s estates team. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
What site paperwork can you supply?
Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm them with the quote.
Can you reseal penetrations after our M&E works?
Yes, provided a specification covers them. New services after M&E works often breach existing seals.
How do I request a quote?
You can use the quote form on this site; alternatively, phone 01277 525 020 or email the details over. Photos, drawings or a joint schedule help us quote quickly.
Are you members of a third-party fire-stopping installer scheme?
No, and we’d rather be clear about that. Third-party schemes aren’t a legal requirement, but many clients and main contractors ask for them. If it doesn’t require one, we can install the specified fire-rated sealant to its tested detail.
Do you work to architects’ specifications?
Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it.
Cost factors for service penetrations
What shapes the price:
- Whether the work must be split into stages
- Removal of failed or old sealant
- Specialist products, such as fire-rated or hygienic sealants
- The total length or number of joints
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.
Details that help us quote
Whether it’s one area or a whole building, these details speed things up:
- The asbestos register, for older buildings
- Clear photographs of the problem areas
- What the building is and how it’s used
- When you need the work done
Let us know the site, the scope and your timescale, and a fixed quote will follow. To get it moving, call 01277 525 020 or send photos by email.
Diagnose, treat, sign off
At the end of each section, we remove the tape, clean down and inspect every joint with your site contact. Where the sealant needs time to cure before use, we tell you and sign the area. For a job in Colliers Wood, access comes first: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Send the building rules and access times with your enquiry.
- 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.
- We compare every service penetration with its tested detail before sealing.
- Foam, ordinary sealant and debris come out so the seal starts clean.
- The specified backing and sealant go in to depth and are finished neatly.
- Anything outside the detail is reported to you rather than sealed.
What we need from you
- Explain the parking and delivery arrangements
- Clear stock, furniture or equipment away from the joints
- Have the specification and drawings to hand
Request a quote
Need a figure for a tender or a budget? We will quote against your scope and drawings that you can work with. For a chat about it beforehand, ring 01277 525 020 or email a schedule or drawings.
Related advice
What the job involves on each surface
Risers and ceiling voids
Voids hide a lot of unsealed openings. We work through the areas on your schedule methodically, and note anything we find that isn’t on it.
Linear joints
Head-of-wall joints often have to absorb slab deflection. The specified product and backing for that movement are what goes in.
For managing agents and facilities managers
Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm with the quote.
We work for building owners and managing agents on sealant work across single buildings or whole portfolios around Colliers Wood. Several sites can go on one quote, which keeps the paperwork simple.
Do you need fire stopping in Colliers Wood?
On a busy project, programme pressure can mean fire stopping is rushed or left to whichever trade is closest. That is how unsuitable products and improvised details end up in compartment walls and later need putting right.
It’s worth sending us details if you spot any of the following:
- Builders’ foam or ordinary silicone in compartment walls
- Damaged fire seals in risers and voids
- Fire-rated sealant that has cracked or shrunk back
- Fire stopping installed outside its tested range
Colleges such as South Thames College Tooting Centre (0.5 miles north of Colliers Wood) add IT and services as courses change, and each new penetration through a fire-resisting wall needs sealing with the specified product.
What your quote should include
- What site paperwork they can supply
- Their public liability cover
- How they’ll work around occupants
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
What happens if it’s left?
An unsealed opening affects more than fire safety: smoke, noise and draughts pass through them every day. The specified fire seal closes the gap for all of these and the building feels the difference. Failed sealant in a building in Colliers Wood can quickly affect neighbours, tenants or the floor below: water travels through shared structures, and a small leak becomes a dispute between occupiers. Dealing with it early is simpler for everyone.
What a job costs comes down to how many linear metres there are, how much old material needs removing and the access. Call for a fixed quote once you have the details.
Why clients in Colliers Wood choose us
- Over 20 years of commercial sealing
- Public liability insurance in place
- Products installed to the manufacturer’s instructions
- A Constructionline member, so easy to vet
Read what affects the cost or our accreditations.