Get your personalised quote
What type of project do you need help with?
Pick a service — we'll respond within 24 hours with a free, no-obligation quote.
Air Conditioning
Split, multi-split, VRF & cassette systems
Refrigeration
Cold rooms, display fridges, freezers
Maintenance
Planned servicing & F-Gas inspections
New Install
Design, supply & commissioning
Emergency
Rapid response breakdowns
Repairs
Fault finding & part replacements
Free, no-obligation quote · Response within 24 hours · Fully insured
Our core services
What we do
From planned maintenance contracts to urgent breakdowns — covering domestic and commercial clients across the local area.
PopularAir Conditioning
Domestic & commercial split, multi-split, VRF and cassette systems.
Learn more
Refrigeration
Walk-in cold rooms, display fridges, freezers and bottle coolers.
Learn more
Maintenance Contracts
Planned servicing to reduce downtime and keep sites compliant.
Learn more
New Installations
Full design, supply, install and commissioning by an experienced engineer.
Learn more
Emergency Call-outs
Rapid response when critical AC or refrigeration equipment fails.
Learn more
Repairs & Diagnostics
Fast fault finding and reliable fixes for all leading brands.
Learn more
Recent projects
Explore our work
From domestic installs to commercial cold rooms — see how we deliver clean, reliable work across the South East.
InstallationTwin condenser install
Hemel Hempstead
RefrigerationWalk-in cold room build
St Albans
Air ConditioningCeiling cassette fit-out
Watford
CommercialDisplay fridge service
Luton
DomesticMulti-split home install
Berkhamsted
MaintenanceF-Gas service & pipework
Milton Keynes
Why choose us
Trusted by homes & businesses
When you choose Ted McCarthy Services Ltd, you're choosing quality, reliability and peace of mind.
20+ years experience
Hands-on expertise across air conditioning and commercial refrigeration.
Fully insured & F-Gas certified
Compliant work to industry standards, every time.
Fast local response
Based in Hemel Hempstead — quick to site across the South East.
Quality workmanship
Neat installs, tidy pipework and equipment built to last.
Honest advice
Plain talk, fair pricing and no upsell — only what you actually need.
Aftercare that lasts
Optional maintenance plans keep your systems running for years.
How it works
What to expect
No hassle. No hidden fees. Just clear timelines and reliable work.
01
Get in touch
Phone, email or message us about your project or issue.
02
Free site visit & quote
We assess the site and provide a clear, no-obligation quotation.
03
Design & planning
We agree the right equipment, layout and timings together.
04
Work completed
Professional, timely install or repair with minimal disruption.
05
Aftercare
Optional servicing keeps everything running reliably.
What our customers say
Real feedback, local jobs
New AC install in our office
“Ted was professional from start to finish. Quoted quickly, fitted neatly and explained how to use the system. Office is comfortable for the first summer in years.”
Cold room saved our weekend
“Our walk-in cold room failed on a Friday night. Ted got to us within a couple of hours, diagnosed the issue and had it back running. Saved thousands in stock.”
Annual service contract
“We have a maintenance contract for our retail fridges. Reliable, on time, and always leaves things spotless. Highly recommend.”
Home AC installation
“Friendly, honest and fairly priced. The install is so tidy you barely notice the pipework. Brilliant job.”
Sectors we serve
Trusted across industries
From single-room domestic installs to multi-site commercial maintenance — we work with clients of every size.
Domestic
Homes, flats and new-builds — quiet, efficient cooling and heating for any room.
Restaurants & Hospitality
Cold rooms, walk-ins, ice machines and bar fridges kept running through service.
Retail & Convenience
Display fridges, bottle coolers and shop-floor AC for a comfortable customer experience.
Offices & Workspaces
Cassette and ducted systems for clean, balanced office climate control.
Healthcare
Reliable temperature control for clinics, surgeries and care environments.
Education
Classroom and IT-room cooling that keeps students and equipment comfortable.
Brands we service
All leading manufacturers
We install, service and repair equipment from the UK's most trusted air conditioning and refrigeration brands.
Areas covered
Local engineers, fast on site
Based in Hemel Hempstead (HP3 9EG), we cover Hertfordshire, Buckinghamshire, Bedfordshire and London.
View all areasNeed a quote or an engineer today?
Open 07:00 – 20:00, 7 days · Free quotes · No call-out fee
FAQs
Frequently asked questions
Do you offer free quotes?
Yes — every quotation is free with no obligation, and we'll happily visit your site to assess what's needed.
What areas do you cover?
We're based in Hemel Hempstead (HP3 9EG) and cover Hertfordshire, Buckinghamshire, Bedfordshire and London.
Are you F-Gas certified and insured?
Yes. All refrigerant work is carried out by F-Gas certified engineers, and we carry full public liability insurance.
Do you work on domestic and commercial sites?
Both. We install and maintain systems for homes, offices, shops, restaurants, retail and food businesses.
How quickly can you respond to a breakdown?
Where possible, same-day. Contract customers always get priority response.
Do you offer maintenance contracts?
Yes — bespoke planned maintenance schedules tailored to your equipment and site.
Get a free quote
Let's talk about your project
Speak directly to Ted — quick response across Hemel Hempstead, St Albans, Watford, Luton, Milton Keynes and the surrounding South East.