Formed in 1987 the HSL Group of companies are one of the UK's leading building services engineering groups. A family run business with an outstanding record for retaining clients and staff we have a wealth of experience in maintaining HVAC plant and equipment to a very high standard.

HSL Group has established itself at the forefront of its sector through its quality, cost-efficient and professional service.

HSL Group has built up a reputation by providing a specialized, reliable and high-quality service which is focused on their customers needs. Our whole ethos is based on developing close working relationships with clients so we can build an understanding of our role in achieving their goals and aspirations.

HSL Group are centred around the belief that the client is looking for a service that combines quality, efficiency and reliability with a professional, enthusiastic, personal approach and a track record which proves the company can actually deliver.

Operating from ideally located premises within easy reach of central London and the home counties the HSL Group are able to offer a fast response to our client needs and emergency call outs.

All of our engineers are directly employed, time served and regularly retrained to ensure that we offer our clients the highest standard of service. Our quality systems are approved to BS EN ISO 9001. Our two board directors have between them over 63 years experience in building services engineering. We are members of the HVCA (heating and ventilating contractors association).

Our clients range from owner occupier’s to large corporate businesses and managing agents.

HSL Group provides specialist maintenance and installation services throughout the UK. We have built up a reputation for quality service and innovative solutions. Our extensive knowledge of the service levels that clients expect from a national maintenance provider positions us perfectly to deliver a wide range of services to all market sectors throughout the UK.