Comfort Services Group Limited

Over 30 years of experience in HVAC Commissioning & Water Treatment.

Our customers all benefit from our 30 years of experience in delivering integrated environmental commissioning services and water treatment for companies across London and the South East. Our talented team of engineers are trained to the highest industry standards, and combine their outstanding technical skills with their friendly approach to dealing with our growing list of customers.

You can trust Comfort Services.

We strictly adhere to industry standards and each service we offer is completed within the guidelines of relevant associations:


Our air and water balancing teams work to the current Chartered Institution of Building Services Engineer (CIBSE) codes, with Code A for Air and Code W for water.


Our pre-commission cleaning water treatment works in closed heating and chilled systems services are set to the standards of the Building Services Research and Information Association (BSRIA), a not-for-profit organisation and members of the Construction Industry Council.

Full PPE, CSCS & more

All engineers carry full PPE, hold CSCS cards and undertake regular Legionella Awareness are Asbestos training regardless if they are on the commissioning or water treatment teams.

HSC ACoP L7 & HSG274 Part 2

Our domestic water treatment processes are in line with current HSC ACoP L8 (2013) & HSG274 Part 2 Technical Guidance.

Local authority compliant

Mains Water Chlorination’s and swabbing as required by Local Water Authorities: Anglian Water and Thames Water.


We are members of several Contractor and Construction Schemes, and working towards several ISO accreditations. A full list of our Accreditations can be found here.

We have an ongoing commitment to making sure that each and every one of our engineers are kept up to date with the very latest training and technical advances in the industry. We then pass on the benefits and efficiencies they bring to our customers for a truly first-class customer experience.

High level, transparent services.

High level, transparent services.

Our high level of service is maintained with thanks to our invaluable engineers, who work cohesively and are truly valued. Our company vision is transparent and openly discussed at our monthly team meetings and individual performance and development reviews are held on a one to one basis with both directors, quarterly.

Our community Values

We’re passionate about our people, product & community.

We’re passionate about our people, product & community.

Get a FREE consultation

Many of our clients have worked with us for many years and have found our quality of service and friendly approach ideal for their environmental commissioning service and water treatment needs. If your organisation is looking to build a successful partnership, build levels of trust that will stand the test of time, contact us today for a FREE consultation.