QSD Fire Systems is a fire stopping and passive fire protection specialist working across Wrexham and its county borough from a base in Flint, around 12 miles up the road. Our work covers the sealing of service penetrations, the fitting of fire collars and dampers, cavity barrier installation and remedial works that put a building’s compartmentation back together. Each job carries IFC certification standards and a full photographic handover record.
When a building fails a fire inspection, it is the person responsible for that building who answers for it, long after the original contractor has moved on. Fire stopping is the part of passive fire protection that holds compartmentation together. Pipes, cables, ducts and conduit all pass through compartment walls and floors, and every one of those openings has to be sealed with tested, certified materials so fire and smoke stay where they start. A missing or failed seal means the compartmentation is breached and the building no longer satisfies the Regulatory Reform (Fire Safety) Order 2005.
Wrexham is QSD’s own back yard. Our base in Flint is a short drive from the city, closer than most of the contractors competing for this work. Since gaining city status in 2022 Wrexham has seen real housing growth, and alongside it a large existing stock of social housing on estates like Caia Park, terraced housing in the town and the former mining villages, and rented and HMO property around Wrexham University. That existing stock is where fire stopping quietly fails, and it is where we work.

In most cases the work begins with something another party has flagged: a fire risk assessment listing unsealed penetrations, a finding from a managing agent, or a notice following a visit from North Wales Fire and Rescue Service. QSD takes the job on from that point, surveying the building, recording where the compartmentation has been broken, completing the fire stopping installation and remedial works that resolve it, and issuing the certified documentation at the end.
We work with the people responsible for Wrexham’s residential buildings, landlords, HMO operators, managing agents and housing associations, across the city and the county borough. Being based in Flint means we are genuinely local to Wrexham, not a national contractor travelling in. Whether it is a terraced property in Rhosllanerchrugog or compartmentation works across a Caia Park estate, the work is carried out to IFC certification standards. Talk to us about your building and we will tell you where you stand.

The Regulatory Reform (Fire Safety) Order 2005 places the duty to keep a building’s fire compartmentation intact on its responsible person. Should fire stopping be missing or defective and the building fail an inspection, resolving it falls to the building owner, as does the liability if the worst happens. What QSD does is straightforward: make sure the building does not fail, and provide the certified evidence that proves it.
A fire compartmentation survey from QSD across Wrexham sets out exactly where a building’s compartmentation has been broken. Our surveyors log every unsealed service penetration, every missing cavity barrier and every stretch of damaged or worn fire stopping, and present it as a prioritised report you can work from and pass to an assessor or insurer.
From there QSD completes the remedial fire stopping that reinstates compartmentation and brings the building back within the relevant building regulations. Across Wrexham’s older terraced and social housing, that often means working through room after room of pipework and cabling retrofitted over decades. A full photographic record of what was sealed, and how, is handed over as the proof the work was done.

Find out where your building’s compartmentation has been breached, with a prioritised report you can act on.
A full inspection of compartment walls, floors and ceilings to identify defective or missing fire stopping.
Certified fire stopping and remedial works for residential buildings across Shrewsbury.
Fire stopping in Wrexham is the whole of what QSD does, not a sideline bolted onto a longer list of trades. We are a residential and passive fire protection specialist working a short drive from the city, and every project is carried out under IFC certification, ISO 9001, CHAS and BAFSA membership.
QSD’s Wrexham work spans fire stopping installation, fire compartmentation surveys, cavity barrier installation, fire collar and fire damper fitting, fire boarding, fire door inspections and remedial works. Much of it is on the city’s terraced and social housing stock, and every job is finished to IFC certification standards with a full photographic handover record.
Yes. Building regulations and the Regulatory Reform (Fire Safety) Order 2005 both require it. Keeping a building’s compartmentation intact, so fire and smoke cannot spread, is the duty of its responsible person, and failing in that duty can bring enforcement action from North Wales Fire and Rescue Service.
Yes. QSD operates from Flint, around 12 miles from Wrexham, so we are genuinely local to the city and the surrounding county borough rather than a contractor travelling in from elsewhere.
Those four credentials are not decoration. IFC certification is the one that counts most for fire stopping because it is specific to the discipline, and it sits alongside ISO 9001 for quality, with CHAS and BAFSA for safety and fire-sector standing. Every Wrexham job closes with the photographic handover North Wales Fire and Rescue Service, an assessor or an insurer would expect to see.
Including: Cheshire, Chester, Conwy, Gwynedd , Mold, Wirral, Ellesmere Port, North Wales & beyond even to places like Birmingham
