Central Heating Engineers and Plumbers
covering Harpenden, St.Albans, Watford, Hemel Hempstead, Welwyn Garden City and Tring

Central Heating

Gas, Oil, Electric or Solar Heating Gas, Oil, Electric & Solar

New Central Heating SystemsNew Central Heating

Heating Boiler ReplacementBoiler Replacement

Power Flushing RadiatorsPowerflush Radiators

Central Heating

As specialist installers of central heating 3 Counties Heating engineers custom design and fit products to suit your requirements while achieving maximum fuel efficiency, which is better for the environment and your pocket with lower fuel bills.

Plumbing & Maintenance

Heating Boiler ServicingBoiler Servicing

Plumbing Repairs and MaintenanceRepairs & Breakdown

Bathrooms and KitchensBathrooms & Kitchens

Repair to Leaking PipesRepairs to Leaking Pipes

Plumbing and Maintenance

Central Heating and Plumbing Problems? We can service and repair your heating system. We can provide annual boiler service and maintenance contracts, insurance maintenance and repair contracts, Landlords Annual Gas Safety Certificate etc

Solar Water Heating

Reduce Energy BillsReduce Energy Bills

Environmentally FriendlyEnvironmentally Friendly

2 Year Guarantee2 Year Guarantee

Free No Obligation SurveyFree Survey

Solar Water Heating

Solar panel technology is now very well-developed and the solar panels absorb energy from the sun even on cloudy days, as the technology does not rely on sunlight but on diffused solar radiation so it can work efficiently in our UK climate.


3 Counties Heating’s heating engineers and plumbers provide a reliable central heating installation, boiler servicing and plumbing service.

Central heating problems? Slow to warm up, radiators cold, strange noises? High running costs?

We service and repair central heating systems. Our central heating and plumbing services also include installing and updating natural gas fired boilers, oil fired boilers, central heating systems, domestic solar hot water heating systems, swimming pool boilersbathroom suites and power shower installation and under floor heating installation.

We also offer emergency call outs, boiler service and maintenance contracts and carry out Landlords Annual Gas Safety Checks.

At 3 Counties Heating our heating engineers and plumbers custom design and fit products to suit your requirements while achieving maximum fuel efficiency, which is better for the environment and your pocket with lower heating running costs.

You can rely on us

All our central heating boilers can be installed with a five year guarantee for your peace of mind. We have over 35 years experience in heating and plumbing, and our central heating engineers are GAS SAFE and OFTEC registered so you can be sure of receiving a professional service from a trustworthy local company.

If you live in the Herts, Beds and Bucks area and you require the services of a reliable GAS SAFE/OFTEC registered central heating engineer, or plumber, please call us on Freephone 0800 019 8860. If your enquiry is not of an urgent nature, please feel free to contact us through our contact form, where we will happily provide you with a free, no obligation quote.

Gas, Oil or Electric Boilers

3 Counties Heating engineers are specialists in the installation of gas fired boilers  and central heating systems. There are two main types of gas boilers: conventional (standard) or combination (combi). Both types are more commonly available as condensing boilers - the most cost efficient and environmentally friendly boilers available.

Our central heating engineers are also specialists in the installation of oil fired boilers (also available as conventional (standard) or combination (combi) boilers and again, both types are more commonly available as condensing boilers.

If you don’t have a gas supply or prefer electric, we can install electric boilers to supply standard wet central heating and hot water.

Oil Central Heating Efficiency

Installing modern effective controls with your new high efficiency boiler will also help reduce the energy consumption of your central heating and hot water system, as well as providing higher comfort levels for you and your family.

In this rapidly changing environment 3 Counties Heating is committed to delivering cost effective heating solutions to our customers.  Why not ask one of our home heating specialists to visit you at home to discuss the benefits of installing a new high efficiency boiler. Special Offers on New Oil Fired Boilers

Fully GAS SAFE and OFTEC Qualified Heating Engineers

At 3 Counties Heating our engineers are fully qualified by GAS SAFE and OFTEC to install, replace, maintain and service your domestic heating system.

Being qualified with GAS SAFE indicates that 3 Counties Heating have achieved expertise in ensuring safety when working with gas, and have qualified for registration with the Gas Safe Registered Installers Association.

Being qualified with OFTEC indicates that 3 Counties Heating have achieved expertise and safety when working with oil fired boilers, and have qualified for registration with the Oil Firing Technical Association.

This gives you the assurance that when our plumbers or heating engineers are working in your home, you are receiving a safe and legal service, which is important, not only for your safety, but will be paramount for attaining planning permission, insurance, or renting or selling your home in the future.

Central Heating and Plumbing Services
in Harpenden, St.Albans, Hemel Hempstead, Welwyn Garden City, Watford and Tring include:

Central heating system or boiler problems?  

Registered Central Heating Engineers and Plumbers

in Harpenden, St.Albans, Hemel Hempstead, Welwyn  Garden City, Watford and Tring

Accredited Installers for Worcester Bosch, Vaillant, Viessmann and Glow-worm Boilers

ViessmannWorcester BoschVaillant

Grant UKBaxi logoPotterton logoIdeal BoilersGlow-worm logo