Plazza Building Luton
Luton
Installation of 8 Mitsubishi Heavy Industries split systems, including 3 ducted units, 4 cassette units, and 1 wall-mounted unit. Mains power was also upgraded.

Denmanair Ltd · Company 03875710 · Trading heritage since 1999
Active, accounts up to date·subcontractor·Head office Bedford
Denmanair, established in 1999 and based in Silsoe, Bedfordshire, is a family-run company specialising in air conditioning and climate control solutions for both commercial and domestic sectors. With decades of experience and highly qualified engineers trained to work with all leading manufacturers, they provide a comprehensive service from initial design and installation to ongoing maintenance and emergency breakdown repairs. They have built strong relationships with clients across Hertfordshire, Bedfordshire, London, and Buckinghamshire, aiming to create comfortable, safe, and productive working and living environments.
The company prides itself on offering tailored solutions, meeting demanding requirements with market-leading equipment. Their service includes detailed site surveys to calculate cooling loads and recommend optimal units, ensuring efficient and reliable climate control. Denmanair also emphasizes excellent customer service, offering fixed call-out charges, extended warranties of up to 5 years on new installations combined with maintenance contracts, and dependable emergency breakdown cover.
They are committed to helping clients lower running costs, reduce their carbon footprint, and maximise uptime through regular servicing and maintenance, which can treble the lifespan of equipment.
Luton
Installation of 8 Mitsubishi Heavy Industries split systems, including 3 ducted units, 4 cassette units, and 1 wall-mounted unit. Mains power was also upgraded.
Stanmore
Comprised of 9 x 40Kw condensing VRF units connected to 110 indoor cassette units, linked to a PC Software BMS for full operation and time clock control.
Egham
Installation of 3 x 18hp Daikin VRVIII condensing units connecting to 27 indoor cassette units across 3 floors, with individual heating/cooling per unit and HRV ventilation to each floor.
London
Emergency installation of 2 x 28kw ducted units into existing ventilation plant during repairs, later re-installed into the Piccadilly Theatre.
Croydon
Installation of 6 VRV condensing units connected to 40 indoor cassette and chassis type units, with a central controller for time clock control.
This profile was compiled from public records. Claim it to add the things buyers ask for:
Denmanair offers comprehensive air conditioning and climate control solutions for commercial and domestic clients across South England, including design, installation, maintenance, and emergency repairs. Their listed services include Air conditioning and Heating & ventilation.
Denmanair Ltd is registered at 6 Bedford Road, Barton-Le-Clay, Bedford, MK45 4JU, in South East.
Denmanair Ltd states that it works across South England, Hertfordshire, Bedfordshire, London, Buckinghamshire and East Anglia.
Accounts filed for the year to 2025 report 10 employees, which places the company in the 10-49 employees band.
Denmanair Ltd does not disclose turnover: UK small-company accounts are not required to. Based on headcount in its filed accounts, turnover is likely to fall between £720k and £1.9m. This is an estimate, not a filed figure.
Companies House lists Denmanair Ltd as active, with accounts most recently made up to 2025-03-31.
Denmanair Ltd displays SafeContractor on its website.
Denmanair Ltd works in Commercial and Residential.
Denmanair Ltd was incorporated on 1999-11-11.
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