CDH Group [logo]

About CDH Group

About CDH Group

CDH Group member companies across the UK bring together established expertise in the design and installation of compressed air systems as approved distributors for world-class brands including Champion Air Technology, CompAir, Gardner Denver, Hydrovane and Ingersoll Rand.

The Group also provides aftermarket maintenance, service and support for all industrial air compressors including performance monitoring, system security, leak detection and air quality testing.

From single compressor installations to major manufacturing plants, teams of qualified engineers provide professional and expert solutions designed around enhancing performance and reducing operating costs, delivering value and helping industry to shape Net Zero strategies.

CDH Group is a member of the British Compressed Air Society (BCAS), working to BCAS standards and codes of conduct.

Typical Compair compressor air network installation
ACE Group [logo]

Leaders in Air Technology

With the focus on providing comprehensive design, installation, commissioning and maintenance packages for compressed air, dryers, filtration, heat recovery systems, pipework, vacuum blowers, air conditioning and refrigeration applications, ACE Group (Engineering) Ltd offers a nationwide service built around industry knowledge and market-leading technologies.

A genuine service kit from the ACE Group
Quality Assured Industrial Services Limited [logo]

Quality Assured Industrial Services

Quality Assured Industrial Services Ltd provide servicing and support for compressed air systems across the UK, from supply through to installation and maintenance.

With the focus on optimising system performance in terms of productivity and energy efficiency, QAIS works to reduce operational costs and increase profitability.

Serving industries including chemicals and petrochemicals, food and beverage, engineering and manufacturing, QAIS aims to keep plant running safely and efficiently.

A recent QAIS project installation
PSI [logo]


PSI Air Compressors and Blowers provide comprehensive solutions for air and vacuum applications across south of England.

The company is an authorised distributor for most of the UK’s leading manufacturers of compressors including screw, rotary vane, variable speed, piston and oil-free models, as well as downstream equipment including filters, dryers, condensate management and heat recovery.

From design and installation to service and maintenance, PSI provides tailored and professional solutions to industry.