Our story
Three decades of getting it right.
Hertfordshire Air Conditioning is an independent air conditioning and heat pump specialist based in Harpenden, serving St Albans, Hitchin, Stevenage and the wider Hertfordshire, Bedfordshire and North London area. Ken project-manages installations personally, drawing on over 30 years of industry experience.
The work spans discreet home systems, whole-house schemes, commercial installations, servicing and TM44 surveys. Whatever the project, the approach is the same: size the system properly, install it cleanly, and hand it over working perfectly. The team is REFCOM accredited, and installations are carried out by F-Gas accredited engineers.
What customers mention most isn't just the quality of the kit — it's how the team works. Reviews describe engineers who are professional, respectful of your home, and who leave everything clean and tidy. That's why so much of the work comes through recommendation, and why the Google rating sits at 4.9 stars across 109 reviews.
4.9★
109 reviews
REFCOM
F-Gas accredited
30+ yrs
experience
Where we work
Harpenden, St Albans & across Hertfordshire.
We cover Harpenden, St Albans, Hitchin, Stevenage and the wider Hertfordshire, Bedfordshire and North London area. Not sure if you're in reach? Just call or email and we'll let you know.
For homeowners and businesses alike. Not sure if you're in reach? Just ask.
What clients say
Every star earned on the job.
“Ken, who project-managed our installation, was excellent. He was incredibly knowledgeable and helpful right from the start... very professional, respectful of our home, and made sure to leave everything clean and tidy.”
“Very happy with the service from Ken and his team... Ken was knowledgeable, helpful in choosing the right unit, and always quick to respond to emails. The installation team were polite, tidy, and completed the job quickly.”
“We got quotes from 4 local AC installers. The best value for money was Herts AC... The installation team were courteous and clean, no mess left behind. Highly recommend!”
“We cannot recommend Ken and his team at Hertfordshire Air Conditioning highly enough... incredibly professional from start to finish, and Darren and Sam who installed it were amazing guys.”