Fire stopping in Longford
Sealant work in Longford for main contractors, managing agents and facilities managers: fire-rated and intumescent sealing of service penetrations and linear gaps, with a fixed quote first.
- Non-fire-rated filler around services
- Openings found when ceilings come down for a refit
- Improvised or mixed-product fire seals
Fire stopping in Longford
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Honest limits
Not every problem is a sealant problem, and we are upfront when that’s the case. These need a different solution:
- Construction that lacks the fire resistance the seal relies on
- Fire doors, dampers or other fire safety equipment
- Issuing fire ratings or certificates for seals
If in doubt, speak to us on 01277 525 020 or email us and we will say what we think before you book.
Joints and surfaces we work on
- Service gaps in risers
- Pipe penetrations
- Linear gaps at wall heads
- Joints between fire-resisting walls and floors
- Cable penetrations
- Small duct penetrations where the tested detail allows
About our fire stopping in Longford
Our applicators are CSCS-carded, and we are CHAS accredited and a Constructionline member. We hold no third-party fire-stopping installer certificate and we’d rather say that up front. What we offer is careful installation of the specified sealant to its tested detail, with a 12-month guarantee on our workmanship. Most enquiries involve fire sealant pulled out of the opening and unsealed openings around new pipes and cables, on small duct penetrations where the tested detail allows, pipe penetrations and service gaps in risers. One point of contact handles commercial sealant work in Longford from the first photographs to the final walk-round, whether it’s one building or several.
Taller residential buildings in London may fall under the Building Safety Act’s higher-risk regime, where fire-stopping records get close attention. 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.
Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.
- Where
- Longford (SL3, UB7, TW6)
- Region
- Greater London
- Cover
- 12 months on our workmanship
- Quote
- Quoted before any work starts
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Also near Longford
What else we do in Longford
After the work
Regular inspection catches problems early. Specifically:
- Foam or ordinary sealant is never a fire-seal repair
- Look above ceilings when tiles are lifted for other jobs
- Report damaged or disturbed seals as soon as they’re spotted
- Have penetrations checked while they can still be seen
Store the specified product details somewhere the next contractor can find them. It makes later repairs much easier to match.
Write fire stopping into the scope of any work crossing a compartment wall or floor. Then the seal goes in while the area is open.
Compartment walls and floors in Longford
London’s office and residential buildings are refitted constantly, and each round of cabling or pipework can leave open penetrations. We seal to the specification and the product’s tested detail, working within the building’s permits. Fire stopping of openings and penetrations in England falls under 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.
Hotels such as Thistle London Heathrow Terminal 5 Hotel (0.5 miles north-east of Longford) rely on fire-resisting walls between bedrooms and corridors, and refits that add services leave penetrations to seal where fire-rated sealant is specified. Campus buildings at universities such as Brunel University of London (3.9 miles north of Longford) see constant changes to data and services, and fire-rated sealant goes in around new penetrations where it is specified. At a college such as Brooklands College - Ashford Campus, 2.8 miles to the south of Longford, checking penetration seals after summer M&E works is good practice.
Longford is about 2 miles south-west of West Drayton, in Greater London. Longford sits inside our coverage and the rest of Greater London, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Across Greater London, 764 places are covered, including Longford. London is covered too, some 17 miles away.
Anyone looking for fire stopping in SL3, UB7 and TW6 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. For a building on Wallis Road, Widgeon Road and Stanwell Moor Road or nearby, send details and we will quote for service penetrations. Access to Longford is via the A3044 among other routes. Close to Longford, our area also takes in Harmondsworth (1 mile north-east), Stanwell (2 miles south-east), Heathrow (2 miles east), Sipson (2 miles north-east) and West Bedfont (2 miles south-east). Nearby towns on our patch include City of Westminster (15 miles east), Marylebone (15 miles east), Kensington (13 miles east), Hampstead (14 miles east), Ruislip (8 miles north-east) and Brompton (14 miles east).
What’s near Longford
We work on buildings around Arthur Jacob Nature Reserve and The Kings Arms, among other places. Longford’s nearest station is Heathrow Terminal 5 Rail station, roughly 0.5 miles south-east. Nearby you’ll also find Spelthorne Museum (3.2 miles south) and Harlington (2.1 miles north-east). Green spaces nearby include Crane Meadows and Staines Reservoirs.
From enquiry to sign-off
Inspect, seal, sign off: that’s the shape of every visit. We inspect the joints and confirm what’s in scope, then we prepare and seal each joint with the specified product, and we finish with a walk round so the work can be signed off. In Longford, most buildings stay in use during the work, so we agree zones and timings with the building or facilities manager. Areas are handed back as each section is finished.
- 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.
- Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
- Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.
Getting the site ready
- Share your working hours and any access restrictions
- Flag any permit to work we will need
- Send asbestos survey details if the building is pre-2000
Quotes
Quotes are fixed against the scope you send, so the cost is agreed before work starts. To start the process, call 01277 525 020 or use the quote form.
Related advice
Longford: questions and answers
Can you work at a site such as Skyport Industrial Estate, by Longford?
Yes. Our area takes in Longford and its surroundings, with estates and business parks such as Skyport Industrial Estate included. Photos and a short description are enough for a first look.
Can you seal penetrations in a hotel in Longford after a refit?
Yes. We install fire-rated and intumescent sealant where it is specified. It goes in to the manufacturer’s tested detail for the wall or floor and the services passing through, and we’ll tell you if the detail calls for a collar, wrap or batt instead.
What hours do you work?
We’re in the office from 8am until 5pm, Monday to Friday. Let us know your site hours and access windows, and the work will be planned around them.
Can you follow the specification on our project?
Yes. Send it with your enquiry, and the quote will be based on it, flagging anything that needs clarifying.
Do you guarantee your work?
Yes. It runs for twelve months and covers how we prepared and sealed the joints, though not damage or work by other trades.
Does weather matter for sealant work?
It can, for external work. Sealant won’t bond properly to a wet or frosty joint, so we watch the forecast and rearrange outside work if we have to. Internal work is far less affected.
How long does a typical visit take?
The duration is planned around your programme and the access we are given. We’ll give you an estimate of time on site when we quote.
What happens if it’s left?
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. In a London building, a failed joint rarely affects only one party. Putting it right early is less disruptive than dealing with the consequences.
The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote and we will explain how it’s made up.
Why us?
- Fully insured
- Health and safety: CHAS accredited
- Constructionline member
- 12 months’ guarantee on every job
What the job involves on each surface
Small ducts
We seal around ducts only within what the tested detail covers. The ductwork, its supports and any dampers are for the ductwork contractor.
Risers and ceiling voids
Service risers and the voids above ceilings are where openings collect. Access is often tight, so we agree it with you in advance, including keys, permits and any isolations.
Quoting for work in Longford
The price varies from site to site. It mainly depends on:
- Joint width, depth and condition
- Any access equipment needed
- How much existing material needs removing
- Working within restricted access windows
No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.
What to include in your enquiry
For an accurate fixed quote, we need to understand the site. Useful things to include:
- Specification clauses that apply
- What the building is and how it’s used
- Anything awkward about access or site hours
- Rough lengths or quantities, or drawings if you have them
The quickest route to a quote is a few photos and the site postcode. Send them through the quote form, or phone 01277 525 020 or email the details over if you’d rather talk the job through.