Air Conditioning · Harpenden, Hertfordshire
Air conditioning & heat pumps, done properly.
Design, supply and installation of home and commercial air conditioning across Hertfordshire. Rated 4.9 from 109 Google reviews.
4.9★
109 Google reviews
30+ yrs
industry experience
REFCOM
F-Gas accredited
Herts
Beds & North London
Independent · REFCOM accredited · Harpenden
Cool, quiet, efficient air conditioning — designed and installed to last.
Hertfordshire Air Conditioning designs, supplies and installs air conditioning and heat pump systems for homes and businesses across Harpenden, St Albans, Hitchin, Stevenage and the wider Hertfordshire, Bedfordshire and North London area. With over 30 years of industry experience, Ken and the team handle every project from the first survey through to commissioning and handover.
The work speaks for itself: F-Gas accredited engineers, REFCOM accreditation, and a fitting standard that customers describe again and again as professional, tidy and respectful of their home. We install the leading brands — Panasonic, Mitsubishi Electric, Toshiba, Fujitsu, Daikin, MHI and LG — and match the right system to the room, the building and the budget.
Brands we design & install
What we do
Cooling, heating and everything in between.
01
Residential Air Conditioning
Wall, ceiling and floor units designed and fitted for homes — cooling in summer, heating in winter, whisper-quiet all year.
02
Commercial Air Conditioning
Offices, shops, server rooms and hospitality — reliable climate control that keeps staff comfortable and equipment safe.
03
Servicing & Maintenance
Planned servicing to keep your system efficient, healthy and running quietly — for homes and commercial sites alike.
04
Heat Pump & Heating Mode Systems
Modern systems that heat as well as they cool — an efficient, low-carbon way to warm rooms through the colder months.
05
TM44 Surveys
Statutory air conditioning inspections carried out to the required standard, with clear reporting and recommendations.
06
Repairs & Fault Finding
Not cooling, noisy, or throwing an error? We diagnose and repair air conditioning across all the major brands.
07
Garden Rooms & Garden Offices
Year-round comfort for garden studios and home offices — cool workspaces in summer, warm ones in winter.
Recent work
Real installs, in clients' words.
Discreet Bedroom Air Conditioning
“The service I received was outstanding from start to finish... The air conditioning unit itself is excellent—far superior to the portable unit I previously used. It's quiet, highly effective.”
★★★★★ — Andy Ruckley, via Google
Twin Outdoor Condensers, Neatly Installed
“Very happy with the service from Ken and his team... The installation team were polite, tidy, and completed the job quickly.”
★★★★★ — Tomasz Ludwig, via Google
Panasonic Install with Tidy Pipework
“The installation team were courteous and clean, no mess left behind. Highly recommend!”
★★★★★ — Selim Cellek, via Google
Daikin Air Conditioning to a Family Home
“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.”
★★★★★ — Tim Stein, via Google
In their words
“He was incredibly knowledgeable and helpful right from the start...”
★★★★★ — Lindsey Weedon, via Google
“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.”
“The service I received was outstanding from start to finish... The air conditioning unit itself is excellent—far superior to the portable unit I previously used. It's quiet, highly effective.”
Why Hertfordshire Air Conditioning
The reasons people recommend us.
4.9★ from 109 reviews
A consistent record of satisfied Hertfordshire homeowners and businesses — see for yourself on Google.
30+ years in the trade
Over three decades of industry experience behind every survey, design and installation.
REFCOM & F-Gas accredited
Refrigerant handled correctly and legally, by F-Gas accredited engineers, on every job.
The brands that last
Panasonic, Mitsubishi Electric, Toshiba, Fujitsu, Daikin, MHI and LG — matched to your space.
Clean, respectful fitting
Professional, tidy and respectful of your home — the theme running through our reviews.
Cooling and heating
The same system cools you in summer and warms you efficiently through winter.
How we work
From first survey to final handover.
01
Survey & design
Ken assesses the space, talks through how you'll use it, and designs a system sized correctly for the room — with a clear, honest quote before any work begins.
02
Clean, careful install
F-Gas accredited engineers carry out the installation with minimum disruption, protecting your home and leaving everything clean and tidy on completion.
03
Commission & handover
The system is tested, commissioned and handed over with a full demonstration, so you know exactly how to get the best from it all year round.
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.
Got a project in Hertfordshire?
Call Ken, or send the details and we'll come back to you with a quote.