Air Conditioning & Ventilation

James Mercer Group LTD roof air conditioning units

James Mercer’s Air Conditioning Department is based in Preston and was established in 1998, it is set up to carry out the design, installation, service and maintenance of all the major air con equipment manufacturers such as Mitsubishi, Hitachi, Daikin, Fujitsu, Airedale and Sanyo. We believe that comfort cooling is becoming increasingly necessary as an essential requirement, and as part of our continued expansion and development, the air conditioning department will complement our other departments namely design and build, contracts and service and maintenance.

The continued maintenance of air conditioning systems is critical as it keeps everything running efficiently and effectively, it also improves the performance & prolongs the life of the system. Our team are experts when it comes to maintaining these units and preventing breakdowns, this helps avoid costly repairs from damage which happens due to neglect.

The department has a team of highly skilled engineers all certified to City and Guilds standard in refrigerant handling to meet F Gas regulations. The James Mercer Group is also a member of Refcom Elite which is a voluntary scheme encouraging refrigerant handling best practices and continuous improvement in industry standards.

We are also a Mitsubishi Business Solutions Partner, which means we are able to have all the necessary training to achieve the highest standards possible when installing and maintaining Mitsubishi electric equipment.

The James Mercer Group’s main office is in Preston but our ventilation and air conditioning engineers complete services all across the North West. Our engineers are experienced and qualified, which is why we’re the first choice for many companies when it comes to designing, installing and maintaining their air conditioning & ventilation systems.

If you’re interested in our air conditioning and ventilation installation services, make sure to get in touch.


Mechanical & Electrical Services

The James Mercer Group Ltd specialises in all aspects of mechanical building services engineering. Our business has facilities for the design and installation, along with the maintenance of mechanical services including air conditioning, plumbing and ventilation ductwork.

Service & Maintenance

As a long established company in the field of Mechanical Building Services, The James Mercer Group Ltd has expanded its maintenance operations and currently provides a responsive and cost effective service across the North West of England, operating in a 90 mile radius from our head office.

Air Conditioning & Ventilation

The Air Conditioning & Ventilation Department can install and service all major manufactuers' equipment for comfort cooling systems.

Public Health Services

We have built up a fantastic reputation over the years for the outstanding work we have carried out for health authorities and NHS trusts.