
Sydenham Hill fire stopping
Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in Sydenham Hill and the surrounding area. Send photos or drawings for a fixed quote.
- Fire seals cut back for extra cables and never reinstated
- Non-fire-rated filler around services
- Service penetrations left open after M&E works
Fire stopping in Sydenham Hill
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Fire stopping in Sydenham Hill
On a fit-out or refurbishment, we follow the services contractors floor by floor. To price a package, give us a call on 01277 525 020 or send details through our quote form with the schedule or marked-up drawings alongside the manufacturer’s details. Tell us what records you need and we’ll confirm with the quote. We work on joints between fire-resisting walls and floors, linear gaps at wall heads and pipe penetrations, and what we’re called in for most is hidden openings found during inspections and seals disturbed by maintenance and left open. Whoever orders the work in Sydenham Hill, the brief is usually the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
London has many occupied offices, blocks and mixed-use buildings where services are added and rerouted all the time. Each service penetration gets fire-rated or intumescent sealant if that’s what is specified, laid to the product’s tested arrangement.
Whoever the client is, the cover is the same: twelve months on the work we carried out. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.
- Place
- Sydenham Hill (SE26, SE23, SE21)
- Region
- Greater London
- Guarantee
- A 12-month guarantee
- Price
- A fixed quote before we start
- Call
- 01277 525 020
- Page updated
- 3 November 2026

Cost factors for service penetrations
What shapes the price:
- Which sealant the job calls for
- Working within restricted access windows
- Joint width, depth and condition
- Whether old sealant has to be cut out first
A quote for service penetrations depends on how many there are, their condition and the access, and any specification that applies. Ask us for a fixed quote.
Details that help us quote
The more we know, the firmer the quote. When you get in touch, include:
- What the building is and how it’s used
- Rough lengths or quantities, or drawings if you have them
- How the joints are reached, and at what height
- Any dates the work must fit around
Send us photos, drawings or a joint schedule are often enough for a fixed quote. Where a site visit makes more sense, we’ll arrange one.
When it isn’t the sealant
A few problems need another trade or a different fix, and we point that out rather than sealing over them:
- Deciding what a wall or floor needs, which belongs to the designer
- Signing off or certifying a building’s fire stopping
- Walls or floors that aren’t fire-resisting to begin with
If in doubt, phone 01277 525 020 or use the quote form and we will say what we think.
Joints and surfaces we work on
- Cable penetrations
- Pipe penetrations
- Service gaps in risers
- Linear gaps at wall heads
- Joints between fire-resisting walls and floors
- Small duct penetrations where the tested detail allows
Diagnose, treat, sign off
Site rules come first: signing in, inductions and any permit to work. With the paperwork done, we take the joints in the sequence agreed with you, and each area is checked before we leave it. Most London premises stay occupied while we’re on site, so zones and timings are agreed with whoever manages the building. Areas are handed back as each section is finished.
- We read the specification, drawings or penetration schedule you send and raise any questions before we price.
- On site, each opening is checked against the tested detail it is meant to follow.
- Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
- Mineral wool or other backing goes in wherever the detail asks.
- Fire-rated or intumescent sealant is gunned in to the specified depth, then tooled.
- If an opening needs something other than sealant, we tell you instead of improvising.
Before we start on site
- Flag any permit to work we’ll need
- Have the specification and drawings to hand
- For older buildings, check the asbestos register before work
Ask for a quote
We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To ask for one, call 01277 525 020 or email the details over.
Related advice
Fire-rated sealing for Sydenham Hill buildings
A 2-mile radius around Sydenham Hill takes in several hotels. In hotels, bedroom and corridor walls are typically fire-resisting, so services added in a refit need sealing with the specified product. The 2 miles around Sydenham Hill include three care or nursing homes. Care settings depend on compartmentation, so service penetrations made during maintenance or refurbishment need sealing with the specified product. We install fire-rated sealant to the tested detail where it is specified.
In a retail centre such as Bell Green Retail Park, which lies east of Sydenham Hill, any fire-resisting wall between units that is crossed by new services needs sealing to the tested detail. At a college such as Capel Manor College, which lies south of Sydenham Hill, checking penetration seals after summer M&E works is good practice.
Sydenham Hill is about 1 mile east of West Norwood, in Greater London. Looking for fire stopping in Sydenham Hill? We can help, as we do across Greater London. Sydenham Hill is one of 764 places in Greater London on our list for service penetrations.
We take on service penetrations across the SE26, SE23 and SE21 postcode area. Streets here include Grange Lane, Dallas Road and Lyall Avenue, and sites on any of them can send details for a fixed quote. We also cover West Dulwich (1 mile west), Sydenham (1 mile south-east), Crystal Palace (1 mile south), Dulwich (1 mile north-west) and Gipsy Hill (1 mile south-west) for service penetrations. Further afield, our area takes in London (5 miles north), City of Westminster (7 miles north-west), Marylebone (7 miles north-west), Kensington (7 miles north-west), St Pancras (7 miles north) and Shoreditch (6 miles north).
Near you in Sydenham Hill
We work on buildings around Long Meadow, The Wood House and Sydenham School and the streets around them. For rail, the closest station is Sydenham Hill station, about 0.5 miles west of the centre. Other landmarks nearby include Horniman Museum and Gardens (0.6 miles north-east) and Lewisham Shopping Centre (3.2 miles north-east). Green spaces nearby include Knight's Hill and Dulwich Upper Wood.
Questions we are asked in Sydenham Hill
Can you work in a London building with booked loading and goods-lift slots?
Yes. Booked loading bays, goods lifts and permit-to-work systems are normal for London jobs. Share the building’s contractor rules and we’ll work to them. The ULEZ covers the whole of Greater London, which we allow for
Can work in a care setting near Sydenham Hill go ahead while residents are there?
Yes. Care settings are planned area by area, at times agreed with the home. Any site rules, from signing in to infection control, are agreed before we start.
Do you need to see the site first?
That depends on the size and complexity of the job. Simple work can often be priced from photos, while larger or less clear jobs get a site visit first.
How do we ask for a quote?
The quote form is the simplest route, though you can also call 01277 525 020 or email a schedule or drawings. Photos, drawings or a joint schedule help us quote quickly.
Do you work in Scotland as well as England?
Our area runs from Greater London and the South East to every part of Scotland. Scotland’s non-domestic Technical Handbook, clause 2.1.14, expects service penetrations to be fire stopped to at least the wall or floor’s fire resistance, using products tested for their end use.
How long do sealant joints last?
There isn’t a single answer, since movement, weather, cleaning and use all affect it. Regular checks let you plan resealing before leaks or damage.
Do you offer coloured sealant?
In many cases, yes. Many products come in a range of standard colours, and matching to RAL references or surrounding finishes is often possible. We’ll confirm the colours available for the specified product.
Work for main contractors and building owners
As a CHAS accredited contractor and Constructionline member, we’re straightforward to vet for your supplier list. Our insurance certificate can be sent along with the quote.
When you manage a building on behalf of an owner, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.
Places near Sydenham Hill
What else we do in Sydenham Hill
Common problems we fix in Sydenham Hill
Some service penetrations were never sealed at all because they sat out of sight above a ceiling or inside a riser. Inspections, refurbishments and ceiling access typically bring them to light.
It’s worth sending us details if you spot any of the following:
- Fire-stopping items raised at inspection or handover
- Old intumescent sealant that has split away
- Openings found when ceilings come down for a refit
- Non-fire-rated filler around services
Wherever services are added at a hospital such as British Home & Hospital for Incurables (to the west of Sydenham Hill) the compartment line has to be made good with the specified product.
What your quote should include
- Will RAMS and insurance details be available?
- Can the work be phased to keep areas open?
- Which product they’ll use, and why it suits the joint
- Their pre-qualification and accreditations
How the job changes by surface
Metal pipes
Heat travels along metal pipework, and the tested detail may ask for insulation beyond the wall. We follow whatever the detail requires and flag anything we can’t match.
Plastic pipes
Plastic pipes soften and collapse in a fire. Some intumescent sealants are tested on smaller plastic pipes, though larger ones usually call for a collar or wrap. We confirm material and size first and tell you if sealant isn’t the right product.