Professional HVAC Contractors in Hemel Hempstead

Handpicked from 35 vetted & reviewed Heating & Air Conditioning companies in the Hemel Hempstead area, explore the top 5 leaders in their field among the selected group of 24 finalists.

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Calibre Climate

(4)

Team

“A very experienced and customer focused team. As it was a retro-fit, the team knew the importance of looking after our home and left everything neat and tidy. Very good at listening to what we wanted. A premium service – Niall Mills, Regent's Park”

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Hemel Plumbing and Heating

(50)

Boiler Service, Plumbing Services, Gas Cooker Hob Installation

“The man who came from Hemel Plumbing and heating was excellent. He first came to look at the problem and didn't charge me for call out. He then came and explained what I needed to do, he then came back to fix the problem. It was problematic but h...”

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Bear Building Services

(38)

“On Tuesday evening we had called bear building services as one of our main wine coolers had stopped working. The gentleman came out within 5mins and was able to diognise the problem straight away. Can't thank the team enough as they were outsta...”

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Top Plumb Ltd

(47)

Job
Team
Hot Water

“Absolute Top Quality with Top Plumb Hired this company on recommendation of another local plumber who didn't cover my area, and from the initial email with Office staff, Kevin visited and discussed my requirements and gave recommendations. Nothing w...”

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Heatelec

(5)

Plumbing Services, CAR Charging, Heating Services

“I recently used David and his colleagues to completely re-wire my home. He was extremely knowledgeable, and also worked very well with the builder, who he had not known prior to working on our home who also commended him highly. I was very impresse...”

Best of 2025

Qualification Criteria for best of Winners

Minimum Overall Score

98 (100)

Minimum Reputation Rank

99.4 Percentile

All of our award winners are based on identifiable facts - reviews, performance, and experience - collected by scientific means. We use this data to assess each business’s essential features, weighting them according to their importance to customers.

Read our methodology

Prominent finalists

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JLG Plumbing & Heating

(20)

Boiler
Project
Radiators

“After moving into a very old property I got a few quotes for a full new heating system and the quote was very fair and competitive and James seemed like someone who you could get on with and work with. Everyone on the firm is just brilliant. Great wo...”

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General B.m.s Ltd

(16)

Efficiency

“GENERAL BMS are very professional and amazing and honest service. They already have completed 2 big projects for 2 schools for us and it was amazing work. Good communication and attitude. Highly recommended to anyone looking for honest and high ...”

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J R Glasson LTD

(11)

Boiler

“Excellent service from start to finish can't recommend Jamie highly enough. From the initial visit and provision of quote to installation everything was very professional. Jamie has a friendly and can do approach and he and Tony cleared up everyt...”

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Active Heating and Renewables

(6)

Air Source Heat Pump Servicing, Solar Panels & Battery Storage, Boilers

“I have used Active Plumbing & Heating several times for boiler servicing and plumbing repairs. They are a friendly, knowledgeable and professional local company and their communication before and after your appointment is very good. Definitely recom...”

FAQs

What is an air source heat pump?

An air source heat pump is a type of renewable heating system that uses the heat from the outside air to heat and heat your home's water. It functions by transferring heat from the air to a refrigerant fluid once it has been absorbed. A distribution system then amplifies the heat before releasing it into your house or building.

How does an air source heat pump work?

Air source heat pumps use a refrigeration cycle to extract heat from the outdoor air. A refrigerant fluid that circulates inside the heat pump absorbs the heat. The fluid is then compressed, raising the temperature of the fluid. Your home's heating system or hot water tank receives heat from the heated refrigerant. The procedure is then repeated with the refrigerant that has been cooled returning to the outdoor unit.

Are existing heating systems compatible with air source heat pumps?

Air source heat pumps can be used in conjunction with current heating systems. They can be integrated with underfloor heating systems, conventional boilers, and radiators. The heating system should be modified to function best with the heat pump, such as by using larger radiators or underfloor heating for lower temperature operation, in order to maximise efficiency.

Do air source heat pumps require maintenance?

In general, air source heat pumps require little maintenance. To make sure the system is running effectively, it is advised to have an annual check-up by a certified expert. It could be required to regularly clean or replace the air filters, as well as check the fluid levels. You can get advice on the precise upkeep needs for your air source heat pump from your chosen installer.

How long is the lifespan of an air source heat pump?

Air source heat pumps can last 15 to 20 years or longer with adequate maintenance. The quality of the installation, the frequency of maintenance, and the make and type of the heat pump itself all affect how long the system will last.

You can find more answers to some of our most commonly asked questions on the FAQ page of our website.

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Orion Building Engineering Services

(3)

Electrical, Air Conditioning, Mechanical Refurbishment

“The engineers were very professional and I was extremely impressed with their expertise. Positive Responsiveness, Quality, Professionalism Services Service not listed”

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Vic McDonald Manor Heating (Plumbing )

(2)

“Helpful advice and reasonable price”

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Palmer Air Conditioning Ltd

(1)

Customer Care & Distribution, Heat Load Calculation, Consultancy & Site Services

“Professional and very knowledgeable”

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Orlando Refrigeration & Air Conditioning Ltd.

(1)

Panasonic (Sanyo) GAS Engine VRF, AIR Conditioning Install, Service & Maintenance, Industrial Refrigeration Systems Service & Maintenance

“Very professional as always. Recommended. Positive Quality, Professionalism Services A/C system repair”

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AJP Airconditioning Services

(1)

Domestic Air Conditioning, Air Conditioning Maintenance, Air Conditioning Service & Repair

“Excellent service nice people and very clean workers would highly recommend”

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Archibalds D L

(1)

“Excellent craftsman. First class work. Very neat and tidy. Would recommend.”

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Crane Heat Pumps & A/C

“Crane became alive with purpose of promoting sustainable heating and cooling solutions. We believe that our environment does not have to bear a burden of our comfort. We took off in 2019, soon after pandemic struck the world, nevertheless we've manag...”

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VHL Facilities

(36)

MHS Boilers, Bosch Commercial and Industrial Boilers, Keston Boilers

“I have worked with Village heating for many years and have always found them to be professional, helpful, prompt and reliable. I cannot praise the office staff there enough and will always recommend their services. Thank you Dan & team! :) Positive R...”

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Air Conditioning & Smart Energy Solutions Ltd

(22)

Units
Price
Room

“Oliver and his team did a fantastic job installing 5 air conditioning split units (and two external condensers) at our house. The work was carried out to a very high standard and he and his team were neat and tidy and didn't leave any mess. His cost...”

Featured

Air Conditioning for Heating Efficiency Switching to air conditioning for heating can save you money and reduce your environmental impact. As gas prices rise and electricity becomes more affordable, using AC units for heating can cut your heating bills by around 20% compared to traditional gas boilers. Plus, if you power your AC with solar panels, the savings are even greater! Learn how air conditioning can be a sustainable and cost-effective solution for your home. #AirConditioningKnowledge #HeatingEfficiency #SustainableLiving #EdlesboroughAirConditioning #HVACExperts #SmartEnergySolutions #AirConditioning #GreenLiving #EnergyEfficiency #CoolingSolutions #SustainableLiving #EVChargers #SolarPower #CommercialHVAC #CleanEnergy #HVACServicesEdlesborough #SmartTech...

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VMV Plumbing & Heating LTD

(50)

Plumbing Services, Heating Services, Gas Safe Services

“Highly recommend Viktor. Had booked in for boiler servicing. He was very friendly, knowledgeable and helpful. He did a thorough checking and inspection on all the required aspects. Also one of my bathroom tub taps had an issue and he sorted out t...”

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Waterworks Plumbing & Heating

(50)

Blockages, Gas Leaks, Landlord Services

“If ever you were looking for a review to make a decision on whether or not to use this company, use this one. Had 4 radiators replaced, after which had no heating or hot water. The original company were not able to fix the issue, despite spending ...”

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Avenue Heating Ltd

(49)

Combination Boilers, Oil Central Heating, Nest Pro

“Great plumber recommendation: Avenue Plumbers - Chaz and Winston We'd been having issues with our hot water for a number of weeks and called Avenue after figuring out it could be something to do with our Hive and wiring. Chaz came out promptly (we...”

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Quadrant Heating Electrics & Plumbing Ltd

(49)

Reviews, Privacy Policy, Submit Review

“Quadrant Heating has supplied and installed a new Worcester combi boiler for me last year at a short notice. Ahmed did an excellent job in suggesting me the best boiler that suits my needs and completed the installation neatly. Successfully completed...”

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Emergency Plumbers Saint Albans

(47)

Central Heating Repairs St Albans, Gas Leaks St Albans, Boiler Repair St Albans

“My water tank was constantly filling and wouldn't shut off and was going through the outlet pipe at quite a rate I rang this company as they offered emergency plumbers near me and the reviews were good.....Chris came round in a couple of hours diagn...”

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CK Plumbers Ltd

(47)

Repair & Maintenance, Boiler Repair & Installation, Power Flushing

“We had a serious leak under our kitchen cupboards and CK plumbers couldn't have been more helpful. They came out quickly after our call and were very helpful and accommodating, fixing the problem quickly and thoroughly and cleaning up after themselve...”

Average Cost	£6743
Minimum cost	£2161
Maximum cost	£12950
Avg Per Hour Rates	£180

Professional HVAC Contractors in Hemel Hempstead

Handpicked from 35 vetted & reviewed Heating & Air Conditioning companies in the Hemel Hempstead area, explore the top 5 leaders in their field among the selected group of 24 finalists.

Calibre Climate

Hemel Plumbing and Heating

Bear Building Services

Top Plumb Ltd

Heatelec

JLG Plumbing & Heating

General B.m.s Ltd

J R Glasson LTD

Active Heating and Renewables

Orion Building Engineering Services

Vic McDonald Manor Heating (Plumbing )

Palmer Air Conditioning Ltd

Orlando Refrigeration & Air Conditioning Ltd.

AJP Airconditioning Services

Archibalds D L

Crane Heat Pumps & A/C

VHL Facilities

Air Conditioning & Smart Energy Solutions Ltd

VMV Plumbing & Heating LTD

Waterworks Plumbing & Heating

Avenue Heating Ltd

Quadrant Heating Electrics & Plumbing Ltd

Emergency Plumbers Saint Albans

CK Plumbers Ltd

HVAC, Heating & AC Services in Hemel Hempstead Cost Estimates

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