210 dedicated & experienced staff working out of 7 strategic offices in the UK.

Our Company
  • Byron Hartley

    Byron Hartley

    Operations Director

    Byron has been with hsl for 17 years, beginning at site level and progressing through to office based roles from Account Co-ordinator to Regional Manager. Byron’s experience has given him the skills necessary to undertake his current role as Business Unit Manager at a very high standard. Byron has a team of highly qualified and experienced Regional and Account Managers under his control to deliver a highly quality service across our National contracts and the South region.

  • Joby Reeves

    Joby Reeves

    Business Unit Manager - London

    Joby has been with hsl Compliance for over 5 years. As Business Unit Manager for our London contracts, Joby regularly meets with our clients to discuss their needs and requirements. He has a background in commercial sales and has worked within the water hygiene and treatment industry for over 10 years.

  • Lesley Wiggans

    Lesley Wiggans

    Regional Director

    As Business Unit Manager Lesley oversees the Operations for the North of England and Scotland. Lesley has 19 years experience with hsl and started the business at site level working as a Lead Surveyor, progressing through the company at various managerial roles throughout her career. She is highly experienced manager who delivers a quality service and is an extremely competent and highly qualified member of the senior management team.

  • Mark Oseman

    Mark Oseman

    Quantity Surveyor

    Mark has over sixteen years service with hsl and as Quantity Surveyor is responsible for the financial planning and management involved with major refurbishment projects in London. Mark has been responsible for the successful completion of numerous cold water storage tank replacement projects within London. Mark also liaises with the appointment and management of sub contractors. Due to the close link with estimating the role also involves assisting with producing quotations and tender documents, including the initial site surveys associated with each.

  • Thomas Carne

    Thomas Carne

    Business Unit Manager – National Accounts

    Thomas is one of our greatest success stories. Having begun his career with hsl in 2009 in the upgrading and remedial division, Thomas was primarily based in South Wales and the South West. Due to his ambition and determination he has progressed extensively both at site and in Supervisory / Managerial roles since that time, gaining a broad understanding and knowledge of our industry and all aspects of Legionella control. Thomas has recently gained a further promotion to Business Unit Manager for our National contracts, where he manages a large team and uses his experience to ensure they provide exceptional service at all times. Over the years Thomas has built strong relationships between our company and its customers, proving one point of call delivers an effective and efficient service.

  • Steve Gray

    Steve Gray

    Business Unit Manager – South

    Steve served a 4 year apprenticeship within the M&E industry to become a qualified pipe fitter welder / heating engineer. He developed his career with further education and gained City & Guilds in Plumbing to become a qualified Domestic and Commercial Gas Engineer. Steve has worked on various sized sites from domestic properties, offices, schools up to large hospitals. He has 30 years experience in the mechanical field and has for the last 15 years focused on the management role, becoming Contracts Manager for a large national company ensuring compliance, health and safety, financial and performance targets, with responsibility for 80 engineers. Steve has over 20 years experience in the water hygiene industry and took the opportunity to join hsl in 2012 as an Account Manager. In 2014 he was promoted to Regional Manager for South England and progressed to a Business Unit Manager in 2018. Steve is a Technical Member of IOSH and his impressive array of qualifications also includes Nebosh General, Construction and Fire.