Welcome to Rossair

your partner in Bespoke and Sustainable HVAC and FM solutions

Tailored Solutions

The range of project specifications, locations, complexity and sectors mean we never do the same job twice.

Health & Safety

We take Health & Safety very seriously.Our expertise is based on tried and tested systems, specific to each area.

Collaborative Planning

Each project is different, from working within a large client team to a one-off purchase order.


Our HVAC solutions reduce energy consumption, minimize carbon footprint, and lower expenses for businesses in the UK.

Rossair provides a comprehensive choice of service and maintenance contracts, ranging from pe-planned periodic site visits to full-time on site engineers.

Since 1973


Outstanding Industrial and Commercial Services

For over 50 years, we have been at the forefront of innovation, delivering exceptional mechanical engineering solutions, electrical installations, including LTHW heating, Chilled Water and ventilation systems, along with, air conditioning, planned preventative and reactive maintenance services. 

We take pride in providing quality services that meet the unique needs of our clients.

Our Head Office in Alton, Hampshire, and our London office in Aldgate along with our Manchester satellite office, enable us to offer nationwide coverage,  Our comprehensive mechanical and electrical engineering services include full project installation, small works, and maintenance services that are available 24/7, 365 days a year.


Facilities Management & Maintenance


Our Projects

Do you Need Help With Maintenance?


Our Accreditations


Some Important Facts

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Commercial Projects
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Retail Projects
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Industrial Projects
“We have always been highly impressed with Rossair’s level of service, professionalism and attitude to putting the customer first and as such they have worked for us for many years on a variety of projects.”
Matt Lee, Contracts Manager
Swallow Site Services

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Perfect Solutions For You.

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+44 (0) 1420 566822

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