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A proper team.
A personal service.

Derbyshire Air Conditioning is a family-founded business with deep roots in the county. Led by Ash — born and bred in Heage, with over 33 years in the trade.

"There are engineers who fit units — and engineers who truly understand the systems. Our team is firmly in the second category."

Our story

Derbyshire Air Conditioning is a family-founded business with deep roots in the county. Led by Ash — born and bred in Heage, with over 33 years in the trade — we've grown into a trusted team of engineers serving homeowners, businesses and vehicle owners across Derbyshire and further afield.

We're not a large faceless contractor, and we're not a sole trader with a van. We're a small, close-knit professional team that takes genuine pride in every installation, service and repair. Every member shares the same standards Ash has built his reputation on — attention to detail, clean workmanship, and solutions that actually work.

What sets us apart is experience that can't be shortcut. Ash is one of a very small number of engineers in the UK with the depth of knowledge to diagnose and fix faults that have defeated others. As a Mitsubishi Diamond Dealer, we also offer an industry-leading 7-year warranty that most local companies simply cannot match.

33+
Years of hands-on experience
1000s
Installations completed
7yr
Warranty on qualifying installs

What we believe in

We believe in doing the job right the first time. That means using only equipment we genuinely trust — Mitsubishi Heavy Industries, Daikin and Fujitsu — and never cutting corners on installation quality. We treat every property as if it were our own, and we don't leave until the customer is completely happy.

We believe in honest communication. If a system can be repaired, we'll tell you. If it's beyond economic repair, we'll tell you that too. No upselling, no pressure, no surprises on the invoice.

We believe in being easy to reach. WhatsApp us any time — it's the quickest way to get a response. For car AC, send a short video of the issue and we can often advise before you even book in. No call centres, no hold music, no automated menus.

Accreditations & qualifications

We hold all the certifications and accreditations that matter — and we back them up with the expertise to match.

Mitsubishi Diamond Dealer
The highest level of Mitsubishi Heavy Industries accreditation, giving access to exclusive products and the 7-year warranty.
F-Gas Certified
Fully registered on the F-Gas register — legally required to handle refrigerant gases in the UK.
Fully Insured
Full public liability and professional indemnity insurance for your complete peace of mind.
33+ years Experience
Over two decades working with every system type imaginable — domestic, commercial, industrial and automotive.

Want to work with us? Get in touch.

WhatsApp us for the quickest response — we typically reply the same day. Or call us directly to discuss your requirements.

Frequently asked questions

How long have you been in business?+

over 33 years. Ash has been working in air conditioning since the late 1990s and has built Derbyshire Air Conditioning into a trusted team serving homeowners, businesses and vehicle owners across the county and beyond.

Are you a one-man band or a proper team?+

We're a small, close-knit professional team — not a sole trader with a van, but not a faceless corporation either. Every team member shares the same high standards that Ash has built his reputation on.

What areas do you cover?+

All of Derbyshire and into neighbouring counties including Nottinghamshire, Staffordshire, and South Yorkshire. For specialist and complex projects, we travel nationwide.

Are you insured?+

Yes — full public liability and professional indemnity insurance. We're also F-Gas certified and hold Mitsubishi Heavy Industries Diamond Dealer accreditation.

What makes you different from other installers?+

Experience that can't be shortcut. Ash is one of very few engineers in the UK with the diagnostic depth to fix faults others can't. Combined with Diamond Dealer status, top-brand-only policy, and genuine pride in clean workmanship — that's a combination most companies can't match.

Accredited installer