Firestopping London developers can defend at handover
Your London programme gets tested firestopping, installed exactly as tested and photographed seal by seal, supporting a Gateway 3 handover you can defend. Delivered by a team working under Skyline’s BM TRADA Q-Mark third-party installer certification.
We’ve worked on London landmarks including The Gherkin, Grosvenor Square and Olympic Park. We cover Greater London and the M4 corridor, so your compliance holds under scrutiny.
A certified specialist walks your building and you get a clear scope and evidence plan.
Firestopping across Greater London and the M4 corridor
For developers, managing agents and commercial landlords, firestopping that is proven as it goes in keeps a London programme moving: fewer rework rounds, fewer delays, no scramble for evidence at handover. Proof, not promises — and a record that holds after the wall is closed.
When the evidence has to hold up, London teams call Skyline: every penetration, joint and cavity sealed with tested systems, installed exactly as tested, keeping firestopping easy alongside your other trades on live London sites.
- Alongside your other trades We work the way construction actually runs: flexible, pragmatic and collaborative in a dynamic environment.
- Greater London & the M4 corridor We cover Greater London and the Thames Valley / M4 corridor: Reading, Henley, Newbury, Maidenhead, Windsor, Slough, Oxford, Swindon and Watford. See the full coverage list of Service Areas.
- Evidence captured as installed The record builds as the work goes in, penetration by penetration, and is handed over at completion.
The buildings that can’t afford to get it wrong
See the evidence as the work goes in
These are our seals on real jobs. Every penetration, joint and cavity is photographed before, during and after installation — always before cover-up, then tagged and captured in the golden thread as installed, never reconstructed afterwards.
Get clear advice on your London project
Firestopping, service areas & the readiness review
Firestopping & Compartmentation
Service Areas
Golden Thread Readiness Review
London fire protection you can certify and defend
Fire stopping London, in the passive sense, means the firestopping, compartmentation and sealing of every service penetration, joint and cavity that stops fire and smoke spreading between compartments in a building. On a higher-risk building it is the work behind the Gateway 3 completion certificate, and getting it proven as it goes in reduces the risk of avoidable rework, delay and stop notices.
Skyline holds BM TRADA Q-Mark third-party installer certification for its firestopping work in London: independent proof, not our word for it, of installer competence — the evidence building control, insurers, owners and the Building Safety Regulator check at completion. Tested systems are installed exactly as tested — never substituted. Skyline is third-party certified under the BM TRADA Q-Mark scheme. It's the assurance behind every London project we deliver.
On a live London programme, Skyline installs firestopping alongside your other trades on London sites, planning the work backwards from the building’s safety requirements and your handover date. Every penetration, joint and cavity is photographed before, during and after installation — always before cover-up, tagged and captured in the golden thread as installed, then handed over as a complete golden-thread evidence pack. London projects we’ve delivered include Grosvenor Square House in Mayfair, the former Canadian Embassy converted to apartments, and the office-to-residential conversion at Olympic Park. Coverage runs across Greater London and along the M4 corridor; see the full list of Service Areas. You reach handover with the fire protection already proven, not a punch list of unverified seals.
Trusted by London developers and managing agents, Skyline covers firestopping, compartmentation, cavity barriers and remedial works across London: penetration sealing, compartmentation, cavity barriers and remedial work, plus structural fire protection where intumescent coatings protect the steel frame. It is deliberately focused work. A fire strategy comes from a fire engineer, and a fire risk assessment comes from a competent assessor. Skyline's work is the compartmentation those documents call for: surveys, installation and the evidence pack. Each seal is installed exactly as its tested system specifies, photographed before cover-up and logged, so the evidence holds up when building control, the Building Safety Regulator or an insurer asks to see it.
Which London buildings need passive fire protection London installers to evidence?
A higher-risk building under the Building Safety Act — 18 metres or 7 storeys with at least 2 residential units — passes through the gateways; the separate 11-metre regime (Fire Safety (England) Regulations 2022) covers fire-door checks and leaseholder duties and does not make a building higher-risk. These carry the strictest checks, and on them the passive fire protection is installed to a tested system and evidenced before cover-up.
Which parts of London and the surrounding area does Skyline cover?
Skyline Firestopping covers the whole of Greater London for fire protection work in London, and continues out along the M4 corridor. Based in Henley-on-Thames, RG9, the team also reaches Reading, Maidenhead, Windsor, Slough and Watford, working on live sites alongside your other trades. The full coverage list is on the Service Areas page.
How can I verify Skyline’s firestopping certification before work starts?
Skyline is third-party certified under the BM TRADA Q-Mark scheme. Third-party certification is independent proof of installer competence, not our word for it; on top of it, Skyline installs tested systems exactly as tested and evidences every seal before cover-up — the record building control, insurers, owners and the Building Safety Regulator.
This London fire protection page was last reviewed on .