About us

Outlining our long history in HVAC-R

Contact Us


World leaders in HVAC-R Software.

Who we are

Computair is a software house concentrating on the HVAC and Cold-room industries. in Toddington, England and serving a global market. All our software is developed in-house by experienced programmers and client confidentiality is paramount.

Company profile

Computair is a company who develop HVAC and refrigeration software. We are based in the village of Toddington in Bedfordshire, United Kingdom.

The Company was set up in 1980 and the first contract was for an Air Handling Unit selection package and was among the first produced in the world on a micro-computer. The main problem encountered at this time was convincing potential clients that it was possible to achieve the claims of automated selection.

Through the years the hardware utilised has developed from Commodore PETs through Sirius, Apricot to IBM compatibles. Computair produces software specifically for manufacturers in the HVACR industry which automates the selection, design and estimation of air movement and heat transfer equipment and associated equipment such as refrigeration, compressors and heat reclaim systems through to CAD, shop floor and production.

The software links to existing computer systems such as stock control, or sheet metal nesting. As the senior staff were engineers who learnt computer programming, the approach has always been to put the needs of the engineer first when specifying and designing the equipment. Over the years, Computair has developed (and continues to develop) software modules such as heaters, coolers, humidifiers, heat reclaim, fan selection etc. for the various technical and financial calculations involved and for the handling and presentation of information. This includes software for the storage and recall of performance information - such as fan curves - often in greater detail than is possible on most selection charts.

Computair map

Management team

The experts and leaders of Computair

Nigel Taffs

Managing Director

Nigel leads the company and has exceptional ‘hands on’ HVAC experience and considerable computational skills. He initially worked for the Myson group of companies, starting as a draughtsman in the Air Handler division and ending up as a design engineer, supervising the air-side quotation department. Air handlers, coils and ‘special’ projects were his direct responsibility. Nigel was a co-founder of Computair in 1980 and has also worked as a consultant to BSRIA (the Building Services Research and Information Association) and sat on the government committee concerning building regulations part L (energy efficiency). He has also trained engineers in psychrometric and coil design for many companies.

Richard Phelan

Technical Director

Richard joined Computair straight after completion of his Master’s degree in 1993 and was invited to join the board of directors three years later. Now in his third decade with the company he has been responsible for the transition from MS-DOS to Windows, the web and today’s modern platforms. He has recruited and developed our team of expert software developers and engineers which he believes to be the best he’s ever had. During his career he has also worked closely with our clients in North America and around the world to fully understand their requirements and with his team provide the solutions that are required.

Peter Graydon

Financial Director

Peter joined Computair in it's early years and provides a strong mix of expertise in both the technical and accountancy aspects of the HVAC-R industry. As a highly experienced professional, he is able to bring a valuable contribution at both corporate and project levels. He also uses these skills to assist in the understanding of client requirements and the best commercial route for client success both technically and financially.

Ray Nottage


Ray originally worked as a fan engineer and went on to build one of the largest fan manufacturing and retail companies in the United Kingdom. He has since been President of the Fan Manufacturers Association and Vice President of the Federation of Environmental Trade Associations (FETA).

Trusted internationally

We have clients in all of the highlighted countries
(Click the map below to expand it)

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Contact us

Want to enquire about any of your HVAC-R software needs?

Please use the form or the email address above to get in contact with us. Include details of your enquiry and your name. We will get back to you usually within 24 hours of receiving your email.

Alternatively you can contact us using the details below.

Phone: +44 (0)1525 874426
Skype: Computair1
Crowbush Farm
Luton Road, Toddington
Bedfordshire LU5 6HU
United Kingdom.