Call your local plumbers & boiler repair specialists in Southampton and Hampshire area


Air Source Heat Pumps

What is an air source heat pump (ASHP)

Air source heat pump transfer heat from the outside air to water, which heats your rooms via radiators or underfloor heating. This makes them more efficient, since they deliver more heat energy than the electrical energy they consume. That makes the heat-pump system more efficient to run than a traditional fuel burning heating system. Heat pumps can also heat water stored in a hot water cylinder for your hot taps, showers and baths.

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Air Conditioning Installation and Servicing


Air conditioning is becoming an essential component to maintain a comfortable living environment, more and more people are having air conditioning at home these days.
Not many people know that Air Con unit is a great and cheap alternative to other heat sources for the Winter.
In our ever-changing climate, air conditioning is increasingly considered the environmentally friendly choice for heating and cooling your home.
Air conditioning is now more affordable than ever before, with new models providing very efficient heating and cooling. Create your perfect climate and environment all year round.

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Boiler Repair and Servicing


Boilercall, our service division extends an efficient and prompt service for the repair and servicing of your heating system and boiler. We are also able to offer our customers the facility to 'powerflush' and cleanse your existing central heating system. CLICK HERE for full details.

All our gas service engineers regularly attend courses offered by all major boiler manufacturers which are designed to give our engineers unparalleled knowledge in repair and servicing of all major manufacturers products.

boiler servicing and repair southampton

Central Heating Installations


We provide a complete installation service for all types of heating systems of any fuel type. We are a trusted and approved installer of all the top brands of heating systems and can offer a 5 year guarantee on most makes, giving you peace of mind. Our installers are highly skilled and efficient. With years of experience, we have the skills and knowledge to carry out new installations with minimal mess and disruption to family life.

central heating installations southampton

Boiler Replacements


Harrison Heating Services specialise in the replacement of Gas, Oil and L.P.G. central heating boilers and associated controls.

Using the most energy efficient SEDBUC 'A' rated condensing boilers from top manufacturers available, we will happily visit your home to establish your requirements and supply you with a detailed quotation, all of which is free of charge and with no obligation to purchase.

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We do our best for you

Harrison Heating Services was established in 1982. Our longevity is owed to our uncompromising levels of quality and service with a focus on the customer with transparent and fair pricing.

Always on time

We take your time seriuosly.

Professional Service

Clean, fast and reliable is what we are.


Not sure? We will always guide you. We are here to help.

Health & Safety

Your health & safety are the most important to us.

Custom Works

Over the years we gained experience and expertise to be able to help you with any custom requirements you might have.

Sweet dreams

With us there are no worries :)

Underfloor Heating


HARRISON HEATING SERVICES have many years experience in the installation of underfloor heating. Thus enabling you to heat your home or any part of your home without the use of radiators.

We have a group of professional installers of Underfloor heating systems and we offer a vast range of quality products to ensure complete satisfaction for the customer. If you require more information regarding the installation of underfloor heating at your property or place of work please contact us where you will receive good sound advice regarding this type of heating.

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What others said abous us

Power Flush


A Power Flush sends a special cleaning solution through your central heating system under high pressure, clearing the harmful sludge which builds up over time as a result of the reaction between water and steel radiators. Power Flush revitalises older central heating systems and is definitely worth the investment when installing a new boiler to maximise its performance.

power flush service for central heating hampshire



Harrison Heating Services have many years of experience in all aspects of plumbing works, whether you require a plumber to install a new bathroom, where we can arrange the electrical works. Floor, walls and ceiling coverings, decorating and of course the installation of your bathroom suite to a very high standard or workmanship.

We are also happy to carry out any smaller plumbing works you may require around the house such as repair of leaks, the replacement and installation of showers, cylinders, tanks, taps, stopcocks and any other plumbing jobs you may require to be attended to.

all plumbing work plumber southampton

Green Energy


Our company offers complete and professional installation of the solar collectors. They use renewable energy emitted by the sun. Solar heating systems capture the suns solar radiation to heat water.

Solar collector can be installed on Pitched Roofs, Flat Roofs, Walls, Ground/Free Standing

solar energy green energy southampton

Image Gallery

Take a look at our image gallery. They say a picture speaks 1000 words so here is where we showcase some of the equipment, boilers and systems we install. Here you will also find some images of completed jobs and the systems we supply.



At Harrison Heating, our products and services are brought to you at the best possible prices but to help spread the cost, we offer finance solutions on all new boilers and heating system installations. This gives you the flexibility to pay the cost over an agreed timeframe, making the cost more manageable. If your home is in desperate need of a heating system upgrade, there is no need to put it off any longer, contact our friendly team to see how a finance package could help you get the heating system of your dreams.

new boiler finance southampton



Harrison Heating Services are a long established local business with a wealth of experience in the full scope of boiler work. Our commercial boiler service covers everything that you will ever need from design to installation and maintenance. Where boilers are concerned, you can rely on us.

commercial heating services southampton

The Team

  • John
    Installation and Surveyor Manager/Director

  • Steve
    Surveyor Manager

  • Debbie
    Office Manager

  • Cora
    Office Administrator

  • Adrian

  • Lucas
    Service Engineer/Plumber

  • Lee
    Breakdown Engineer

  • Tom

  • Tomek

  • Mike


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Frequently Asked Questions

If this happens, it might be a result of low pressure or blockage in the system, which is restricting the flow of water. In some cases, there could be a fault with a closed valve, thermostat or aa pump causing the water not to circulate properly. We recommend contacting us for assistance in diagnosing and repairing the fault by a Gas Safe registered engineer.
The most common causes of leaks and boiler dripping water are faulty internal components, this includes but is not limited to issues with corrosion, broken pressure valves, pump seals, or loosen pipe connections. We recommend calling out our Gas Safe registered engineer, who will diagnose and fix the problem for you and stop any potential dangers. You should never try to fix a boiler yourself, always call out for professional help.
Kettling sound from your boiler ( similar to a boiling kettle ) is usually caused by limescale or sludge buildup inside the system. It often happens in areas with hard water. The deposits build up in your boiler or pipes can block or restrict the flow of water inside the system, which can result in overheating and weird noise. It is best to treat this as soon as possible because it might result in more severe boiler damage and higher costs if your boiler needs replacing. We recommended calling our team as soon as you notice kettling sounds from your boiler. Our engineer will drain your central heating system and remove limescale and sludge buildup. For more information on this method, please visit our Power Flush section.
Worrying noises from the boiler are usually caused by low water pressure, a faulty pump or air buildup in the system. The type of sound in your system can narrow down the source of the problem. Banging noise could be a result of imminent pump failure, and this happens most often in old systems that have not been serviced regularly. We highly recommend contacting us to book our Gas Safe registered engineer for a professional diagnose of the problem as soon as possible.
The blue flame that always stays lit is called a pilot light. If this pilot light keeps turning off, it will stop your boiler from working. It can be caused by a broken thermocouple, which would stop the supply of gas to your boiler. Sometimes also the problem could be a draught blowing the pilot light out or a deposit built up in the pilot light. Always remember that you should never carry out any work on your central heating system. There is one thing that you could check yourself before calling out an engineer: Check if your other gas appliances are working and that your gas stopcock is on. You can always give us a call, and we will be more than happy to help you.
The most common causes for this to happen are faulty airlocks, diaphragms, motorised valves, thermostat or low level of water in the system. Your heating system might require a new part fitted to be working correctly again. Give us a call today for professional advice. If necessary, we will book a Gas Safe registered engineer for a professional diagnose of the problem as soon as possible.
It is straightforward to check the pressure of your central heating system; just take a look at the pressure gauge on your boiler. Low pressure ( below 1 ) will cause your central heating system not to work properly. It can be a result of a few potential reasons. Some of the reasons for this to happen could be a water leak in the system, recently bled radiators or a faulty pressure relief valve. We recommend contacting us for assistance.
All condensing boilers ( combi, system or regular ) have a condensate pipe transporting excess water away from the boiler. During winter it is common for the water to freeze and cause a blockage. If this happens, your boiler will most probably display a warning or a fault code. Feel free to give us a call; we will be happy to assist.
It might be a sign of a faulty thermostat when the heating is turning on and off when it is not supposed to. If your thermostat starts to malfunction or loses its accuracy, it will probably need to be replaced. Give us a call today for professional advice.
If some of your radiators are not getting hot, then they might need balancing. This procedure can also be done without the help of an engineer, but only if you feel confident doing it. If only the bottom of your radiator is getting hot then it might need to be bled, it is not a difficult task, and it does not require an engineer. In some other cases, there could be a build-up of sludge or air in your central heating system. Our professional engineers can remove this build-up by a process called Power Flush, and this is something that you should not try yourself.
All of our installers are fully trained, and qualified Gas Safe registered professionals.
We will recommend the best possible boiler for your needs, in terms of brands we mostly recommend Valliant and Worcester Bosch.
Harrison Heating has a team of professional engineers covering all of Hampshire. Most of our work so far has been carried out in the following areas: Southampton, Eastleigh, Fareham, Chandlers Ford, Whiteley, Winchester, Portsmouth, Winchester, Hedge End, West End, Botley, Romsey, Totton, Lyndhurst, New Forest, Hythe, Marchwood, Netley, Gosport, Twyford, Hamble, Holbury, Wickham, Titchfield, Nursling, Ringwood, Salisbury, Cosham, Waterlooville, Fair Oak and Lee-on-the-Solent.
Yes, we provide free quotes without obligation from your side to accept our quotation.
To give you the best and optimal solution we will need to know few details. For example, we will ask how many rooms and bathrooms you have currently or if you are planning any future extensions of your house.
In most cases, we can install your new boiler in the next working day. It depends on the current workload, so please give us a call as soon as possible if you are in a rush.
It usually takes one day to fit a new boiler by our professional installation team.
It is required by law that all servicing and gas safety checks are made by a Gas Safe registered engineer. It is also a condition of the warranty if your boiler is still under one.
We will do all possible safety checks, inspection and test all critical components to make sure your boiler runs safely, reliably and efficiently.
Please feel free to use our website to leave us a short feedback message. We are always happy to hear from customers about the outcome of our work. You can also read other customers reviews in the feedback section of our website.
Underfloor heating can be installed in most houses under almost any type of flooring. It gives you the option to have different zones heated and controlled independently. It comes very convenient in terms of managing heat distribution depend on which rooms are being used at the time.
Of course, you can! It is even recommended if the room is big enough, the area of heating can be split into sections. This approach works great with open-plan areas like kitchen diners.
Underfloor heating gives you the ability to warm up naturally cold ceramic or stone floors efficiently. It distributes the heat throughout the heated areas more equally compared to the radiators. Once installed, the underfloor heating requires less maintenance compared to central heating.
The underfloor heating gives you more control, increased comfort, better heat distribution, and it costs less to run. Underfloor heating provides a cleaner radiant heat causing less discomfort to asthma and dust allergies sufferers.