FIRAS Certified Fire Stopping Contractor | Greenwall
FIRAS & CHAS accredited · Next-day service · Nationwide from LondonCall free: 0800 998 7707

FIRAS Certified Fire Stopping and Compartmentation

Third-party certified passive fire protection for contractors, housing providers and building owners. Every penetration sealed to tested details, photographed and recorded in Onetrace for handover and the golden thread.

  • FIRAS third-party certified
  • Every penetration photographed
  • Live site and occupied building experience
Fire Stopping by Greenwall Solutions
Handover-ready evidenceLocation, product and installer for every seal
FIRAS accredited passive fire protection installer CHAS Standard accredited contractor UK Fire Door Training approved Fully insuredDBS-checked engineersOnetrace digital evidence
Why it matters

Compartments only work if every gap is sealed

One unsealed service penetration can let fire and smoke bypass a fire-resisting wall or floor. Fire stopping restores that resistance.

Since the Building Safety Act 2022, building owners and contractors need reliable, retrievable evidence of how passive fire protection was installed. We provide it as standard.

What we seal

  • Pipe, cable and duct penetrations
  • Linear joints and head-of-wall gaps
  • Cavity barriers and voids
  • Service risers and shafts
  • Penetrations through compartment floors
For main contractors

A fire stopping subcontractor that will not hold up handover

Certified and audited

FIRAS and CHAS accreditation, ready for your supply chain pre-qualification.

Evidence as you go

Onetrace records each seal as it is installed, so your O&M information is never a last-minute scramble.

Tier 1 experience

Trusted on projects for Skanska, Kier, the NHS and Kent County Council.

Process

How we deliver fire stopping

  1. Survey

    Review drawings, compartment lines and existing seals.

  2. Specify

    Match each penetration to a tested product detail.

  3. Install

    Certified operatives seal and label each penetration.

  4. Record

    Photo, location and product logged in Onetrace.

  5. Hand over

    Certificate and digital record for your building file.

FAQs

Fire stopping FAQs

What is fire stopping?

Fire stopping seals openings, gaps and voids where services pass through fire-resisting walls and floors. It restores the fire resistance of each compartment, so fire and smoke are contained and occupants have time to escape.

Why use a third-party certified installer?

Fire stopping is only as good as its installation. FIRAS certification means our installers and their work are independently audited, and every installation is traceable to the tested product and detail used.

Do you work on new build and refurbishment projects?

Yes. We work for main contractors on new build, refurbishment and remediation projects, as well as on occupied residential and commercial buildings.

What evidence will we receive at handover?

Each penetration is photographed, labelled and recorded in Onetrace with its location, product and installer, ready for your O&M manual and the building's golden thread of information.

Can you survey existing compartmentation?

Yes. We can survey existing fire stopping, record what we find and quote for remedial works where compartmentation has been breached.

Free, no-obligation quote

Get a fire stopping quote

Send us your drawings or describe the project. We will come back with a fixed price and programme.

  • Fixed price in writing before any work starts
  • We match any like-for-like quotation
  • Next-day appointments available
  • Reports and certificates you can hand to an auditor, insurer or the fire service

Prefer to talk? Call free on 0800 998 7707 or email [email protected]

Tell us what you need

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