Our People

  • Gavin Hartley

    Gavin Hartley

    Managing Director

    Gavin is a highly motivated and results orientated Managing Director with over 25 years’ experience working in the environmental compliance industry. With a proven track record in developing strategies that reduce risk, create motivated teams, optimise internal resources, produce consistent financial returns and excellent customer service.

  • Alan Hasson

    Alan Hasson


    Alan has over 30 years experience within the Water Treatment Industry and has built up a vast amount of knowledge in all areas of the business. In recent years he has specialised in Legionella Management across all types of industry as well as Hospitals/NHS Trusts and Local Authorities. Alan also presents our popular Legionella Awareness training courses in an interesting and lively manner but to a standard which ensures the ACOP(L-8) legislation is clear and understood and the required tasks are carried out in technically competent manner.

  • Ben Hartley

    Ben Hartley

    Financial Director

    Ben has 25 years experience with the company and has carried out various roles including operational, administration, commercial and financial. Ben's current role is Financial Director, where he manages the financial and estimating departments, including purchasing, accounts, bid management, legal and premises.

  • Andrew Nicholls

    Andrew Nicholls

    Sales and Marketing Director

    Andrew recently joined hsl Compliance and has many years of experience in both a Director and Managing Director capacity within the construction, manufacturing and service industries. Andrew is highly experienced in developing successful business partnerships and consistently achieving commercial growth and development.

  • Byron Hartley

    Byron Hartley

    Operations Director

    Byron has been with the business for 20 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 Operations Director at a very high standard. Byron is responsible for the operational activities in all of the business, across water hygiene, water treatment and asbestos services. He works closely with his two regional directors, Steve and Lesley, and their teams of account managers to ensure they deliver a highly quality services across all our contracts and regions.

  • Dave Mannion

    Dave Mannion

    Water Treatment Director

    Dave worked for a leading water treatment company in technical and sales management for over 25 years before joining the Alchem team in September 2006. This became a turning point for the company as Dave brought with him a wealth of experience in sales strategy and management. Dave specialises in the industrial water treatment division of the Alchem business and provides support to our customers on the safe and efficient operation of their utility systems.

  • Lesley Wiggans

    Lesley Wiggans

    Regional Director

    As Regional Director Lesley oversees the Water Hygiene operations for hsl outside London and nationally for Alchem. Lesley has over 20 years experience with the business and started at site level working as a lead surveyor. She has progressed through the company at various managerial roles throughout her career. She is a highly experienced manager who delivers a quality service and is an extremely competent and highly qualified member of the senior management team

  • Tim Seager

    Tim Seager

    Compliance Director

    For the last 27 years Tim has been working in the water industry, working to ACoP L8 (The Prevention of Legionella Bacteria in Water Systems). As a Health & Safety, Quality, Environmental and Compliance professional Tim has a vast range of responsibilities, including the production of work place risk assessments, generic risk assessments, equipment inspections, Health and Safety training, development and implementation of Health and Safety policies and procedures, equipment audits, quality audits, PAT testing, equipment inspections, equipment calibration, production of the training manual and training all personnel in the planning and scheduling system. Tim has extensive expertise in the compliance of ISO Quality Management Systems, ISO Health & Safety Management Systems and ISO Environmental Management Systems and PAS99 Integrated Management Systems.

  • Andy Banham

    Andy Banham

    National Sales Manager – Water Treatment

    Andy initially started in the water industry in 1999 with tank and tower cleaning ,tank and tower refurbishing. He progressed to Field Operations Manager where he was responsible rolling out contracts and running the field engineers teams. He started specialising in industrial water treatment in 2008 as a service chemist, learning water treatment equipment design, installation and energy saving initiative implementation . He joined Alchem Industries in 2012, progressing to his current role as National Sales Manager for Water Treatment

  • Shaun Jelfs

    Shaun Jelfs

    Credit Control Manager

    Shaun been in the financial services industry for over 30 years and has been involved in collections/litigation and customer relations. Shaun has a technical understanding of debt management, collections, new business and sales. Shaun’s role at hsl Compliance involves carrying out credit control on a portfolio of customers within the building services sector for the local authority and social housing market throughout the UK.

  • Rachel Woodley

    Rachel Woodley

    HR Manager

    Rachel has recently joined hsl Compliance and is responsible for delivering a high quality HR service. Rachel partners closely with the Business Unit Managers to ensure that the organisation achieves its objectives through effective strategies and interventions. Rachel is passionate about creating and maintaining a motivated, productive and engaged workforce, which in turn delivers quality customer care and service to all of our clients.

  • Tracey Smart

    Tracey Smart

    Finance Manager

    Tracey has worked for Alchem Industries since 1993 and has played an essential role in the financial development of the Company. In addition to skills in accounting, the preparation of financial reports and budget monitoring she gained a lot of experience in setting up cash flow strategies. Tracey and her team now manage all financial accounting, monitoring and reporting as well as the Alchem credit control and the companies HR. They also provide financial advice and support to colleagues enabling them to make sound business decisions.

  • Matthew Kralski

    Matthew Kralski

    Operations Manager

    Matt has been promoted to Operations Manager and now leads the Alchem Operations team. Matt's team manages the logistical aspects of our ever growing water treatment division. He also plans our environmental services, risk assessments and water hygiene projects and Matt and his team ensure these are carried out as agreed with the client. Matt works very closely with Sue, Mike and Rob on all different aspects of our business and guarantees these are all carried out in a timely and satisfactory manner and in a happy working environment.

  • Andy Casey

    Andy Casey

    Risk Assessment Supervisor

    Carrying out a Legionella Bacteria Risk Assessment and ensuring it remains current is required under health and safety law and is a key duty when managing the risk of exposure to legionella bacteria. In accordance with the recently revised Approved Code of Practice L-8, all cooling tower systems, hot and cold water systems and other risk systems need a risk assessment which is current at all times. The assessment should consider all aspects of the operation of water systems including safe start-up and shut-down procedures together with any foreseeable unusual occurrences. Whilst there are common factors, the cooling tower or hot and cold system risk assessment must be site specific for the system under review, not a general document. To make sure that the assessments meet all current of the H.S.E. standards, Andy Casey has been promoted to Risk Assessment Supervisor. Andy is responsible for training of the risk assessment team and ensure the accurate, smooth and timely completion of Legionella Bacteria and Pseudomonas Aeruginosa risk assessments.

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