Fire stopping in Downside
Fire-rated and intumescent sealing of service penetrations and linear gaps in Downside. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Seals that don’t match their tested detail
- Builders’ foam or ordinary silicone in compartment walls
- Hidden openings found during inspections
Fire stopping near Downside
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Fire stopping in Downside
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. We work to the product’s tested detail for every seal. Most enquiries involve fire-rated sealant that has cracked or shrunk back and openings found when ceilings come down for a refit, on service gaps in risers, pipe penetrations and linear gaps at wall heads. Searching for sealant specialists in Downside? We’ve been sealing commercial buildings since 2005, with CSCS-carded applicators.
A job near Downside is typically planned around one visit, so send the specification and photos first. Design and sign-off belong to the designer or building control; we install what’s specified.
We stand by our work: 12 months, guaranteed. That covers our preparation and application, and if something we did falls short, we return to it.
- Place
- Downside (KT11)
- Region
- Surrey
- Cover
- A 12-month guarantee
- Price
- Quoted before any work starts
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Common questions from Downside clients
Do you take on work at healthcare sites like Cobham Community Hospital and Health Centre?
Yes, hospitals are one of the sectors we cover. We follow the site’s permits, sign-in and infection-control procedures in every area.
Do you cover business parks and estates near Downside, such as Bookham Industrial Estate?
Yes. We cover Downside and the area around it, including industrial estates, business parks and retail parks such as Bookham Industrial Estate. To start, just speak to us on 01277 525 020 or email us with the unit, the joints involved and your access times.
Can you seal any opening with fire-rated sealant?
No. A sealant’s evidence covers set services, gaps and wall or floor types. If an opening falls outside, it needs another solution.
Can you handle several sites?
Yes. Several buildings can share a single quote, and you deal with one contact throughout.
Will you quote for a small job?
Single areas, one-off repairs and whole buildings are all quoted the same way: send details, get a fixed quote, we seal, guaranteed.
Can you work to our specification?
Yes. We follow the specification, along with the manufacturer’s installation guidance, and any queries are raised before we start.
Do you seal openings left by new services?
Yes, provided a specification covers them. New services after M&E works often breach existing seals.
Diagnose, treat, sign off
Where the site stays busy, the work is phased so only one area is out of use at a time. Each area is protected, prepared and sealed, then reopened once the sealant allows before the next one starts. Rural sites near Downside may need directions, gate codes or a contact on site. Add it to your enquiry and we’ll build it into the plan.
- We start with your penetration schedule, drawings or specification.
- We plan the sequence of floors, risers and voids with you.
- 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.
Getting the site ready
- Point out any areas we must not close
- Send your site hours and access windows
- Send asbestos survey details if the building is pre-2000
Ask for a quote
Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. To get it moving, call 01277 525 020 or email the details over.
Advice
Places near Downside
Other services in Downside
What the job involves on each surface
Linear joints
Joints at the top of partitions may need to move as the slab above deflects. The specified product and backing for that movement are what goes in, along the full length of the run.
Masonry and concrete
Core-drilled holes are neat; broken-out ones rarely are. The gap is measured at the widest point so we know it sits within the tested range, and any that don’t are flagged.
Commercial clients in Downside
We work for building owners and managing agents on sealant work across single buildings or whole portfolios. One quote can cover more than one site, so there’s one set of paperwork to deal with.
We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Sites in Downside can sit alongside others in a wider programme.
What sealant work can’t fix
Honesty saves time and money. New sealant won’t cure:
- Signing off or certifying a building’s fire stopping
- Openings that need collars, wraps, batts or boards rather than sealant
- Fire doors, dampers or other fire safety equipment
Not sure which it is? You can call 01277 525 020 or email a schedule or drawings and we’ll tell you honestly.
Surfaces we seal
- Cable penetrations
- Linear gaps at wall heads
- Joints between fire-resisting walls and floors
- Pipe penetrations
- Small duct penetrations where the tested detail allows
- Service gaps in risers
Why it’s worth doing now in Downside
An open or wrongly sealed service penetration lets fire and smoke reach the next compartment much sooner than the building was designed for. While the openings can be reached, sealing them is normally straightforward. Wait until ceilings close or areas are occupied and the same work becomes harder to reach. Halls, stores and units around places like Downside may not be checked every day, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.
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 you get with us
- Commercial sealant work since 2005
- Health and safety: CHAS accredited
- Old sealant cut out, never sealed over
- Products installed to the manufacturer’s instructions
Take a look at our cost guide and our accreditations and insurance.
Penetration seals near Downside
For England, the fire stopping of penetrations is dealt with in Approved Document B. 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. What we install is set by the specification, and it goes in to the tested detail. Downside has two care or nursing homes no more than 2 miles away. Care homes rely on fire-resisting walls and floors, and maintenance work that breaks through them leaves openings to seal. Where that’s fire-rated sealant, we install it to the manufacturer’s tested detail.
Older community buildings such as St Michael's Chapel that have been rewired or given new heating can have service gaps through walls worth checking against the specification. For a hospital such as Cobham Community Hospital and Health Centre, 1.6 miles north of Downside, penetration sealing is normally phased ward by ward, with infection-control rules agreed first.
Downside is about 4 miles west of Leatherhead, in Surrey. Businesses, contractors and managing agents in Downside can call on us for service penetrations, as part of our coverage of Surrey. 379 places across Surrey fall within our area, including Downside. There’s a separate page for London, about 19 miles away.
Business premises anywhere in KT11 are within our area. We cover commercial and managed buildings on Downside Common, Downsview Close and Deacon Close and the roads nearby. Nearby places we also cover include Hatchford (1 mile west), Martyr's Green (1 mile south-west), Hatchford End (2 miles west), Whiteley Village (3 miles north) and Wisley (3 miles west) for service penetrations. Bigger towns within reach include Guildford (8 miles south-west), Woking (7 miles west), Camberley (14 miles west), Epsom (6 miles east), Horley (14 miles south-east) and Redhill (12 miles south-east).
What’s near Downside
Around Downside, our work takes us to commercial buildings near The Plough Public House and Parkside School and the streets around them. The closest station to Downside is Cobham & Stoke Dabernon station, roughly 1 mile north-east of the centre. Well-known places in the area include Epsom Cottage Hospital (5.1 miles north-east) and Send and Ripley History Society Museum (3.8 miles west). Open spaces near Downside include Jubilee Wood and Boldermere Lake.
When to call us in Downside
Most open service penetrations are left by later work. New cabling, rerouted pipework or a data route drilled through a riser can leave the hole behind. Across several fit-outs, the openings add up.
Look out for the following:
- Unsealed joints where partitions meet the slab
- Snag lists that include open service penetrations
- Openings left by services added after handover
- Seals that don’t match their tested detail
Holiday works at schools like St Matthew's CofE Aided Infant School often leave service openings to seal before pupils return.
What to look for in a quote
- The named product and why it was chosen
- Proof of insurance
- Their pre-qualification and accreditations
- What the guarantee covers, and for how long