A multidisciplinary contractor providing safety, compliance, and technical excellence throughout the UK

Perry Winch

As Managing Director of Spectra, Perry oversees a diverse business providing specialised services across the UK. Under his guidance, Spectra has grown from a trusted asbestos consultancy into a full-service provider offering enabling works, demolition, asbestos surveying and removal, fire protection, land remediation, damp and mould solutions, thermal insulation, and new-build carpentry.

With more than four decades in the industry, Perry is a firm believer in never asking anyone to do something he could not do himself, and he stays close to the technical detail rather than delegating it entirely. His professional memberships and qualifications back that conviction, and he maintains them through regular refresher training that runs from his level down through the whole business. His dedication to quality, professionalism, and safety supports every division, ensuring Spectra consistently delivers dependable, compliant, and cost-efficient solutions for clients nationwide.

Perry continues to focus on driving ongoing improvement, raising compliance standards, and supporting clients with safe, efficient, and technically sound project delivery.

David Harrison

David heads up Spectra's asbestos removal division and brings a commercial background to it. He trained as a quantity surveyor and worked on the main contractor side before moving into the specialist world, which shapes how projects are priced, presented and reported. Knowing how a client's own commercial team wants to see information takes a lot of friction out of a job and cuts down the back and forth that slows projects up.

He has delivered licensed removal on major schemes including Battersea Power Station, Ferrybridge and Shell Tower, alongside national frameworks and work in high-security and live operational environments. David has been elected twice to the ARCA governing council. He is currently deputy chairman and takes over as chairman in October, which gives him a view of where the industry as a whole is heading and the standards it is working towards.

Darren Chinnery

Darren leads Spectra's consultancy and quality function, covering asbestos surveying, air testing, and the accreditation regime that sits behind both. He is responsible for the training and induction that turns a newly qualified surveyor into someone who can be trusted on site alone, with most of that time spent on material and priority assessment, because that is where surveys live or die.

He maintains Spectra's UKAS schedules and internal audit programme, and reviews reports against the Analysts' Guide as a benchmark rather than a formality. Clients dealing with live and occupied buildings, retail and banking estates, or large cyclical survey programmes typically deal with Darren directly.