Boiler repairs, boiler installations, central heating repairs
Send Inquiry Boiler repairs, boiler installations, central heating repairs
Boiler repairs, boiler installations, central heating repairs
Boiler repairs, boiler installations, central heating repairs
Boiler repairs, boiler installations, central heating repairs
Boiler repairs, boiler installations, central heating repairs Boiler repairs, boiler installations, central heating repairs Boiler repairs, boiler installations, central heating repairs
Boilers and Central heating

Harrow Heating Services Ltd offers a fast, efficient and friendly service in all types of Central Heating Boiler Repairs:

  • 24/7 Emergency Boiler Repair Breakdowns
  • (combination, condensing and conventional)
  • New Boiler Installations
  • Boiler Servicing
  • Full central heating installation
  • Radiator and pipe repairs
  • Immersion Heaters
  • Tanks


Faulty or leaking appliances should be repaired without delay. Our engineers are highly trained in diagnostic techniques for all major makes and models of natural gas domestic and commercial central heating boilers. You can rest assured that our engineer is 100% committed to repair your boiler wherever possible.

All gas appliances should be serviced, at least once a year. This ensures your appliance is working safely and efficiently and should also prolong the life of your appliance.

By law, landlords are generally responsible for making sure that gas fittings and flues are maintained in good order, and gas appliances are serviced and checked for safety once in a period of 12 months. They must also keep a record of the safety checks for at least two years and issue the latest certificate to existing tenants and any new tenants before they move in. If you own the appliance, you are responsible for its maintenance and safety checks.  (Health and Safety Executive)

Faulty appliances increase the risk of carbon monoxide poisoning.  About 50 people die each year in the UK from Carbon Monoxide (CO) poisoning, and many become chronically ill. With symptoms including headaches and drowsiness, it’s often confused with flu.

An annual gas safety check could prevent needless deaths from Carbon Monoxide poisoning.

To read more about Carbon Monoxide poisoning visit:

What type of condensing boiler is for me?

There are 3 different types of high-efficiency condensing boiler: 

Each type delivers all the benefits of high-efficiency technology, but which one you choose will depend on several factors, including your property, your lifestyle and the professional advice of your Gas Safe registered Heating Engineer.

What is a combi boiler?

The high efficiency condensing combination boiler is a great space-saving idea.

The major difference between a combi and any other type of boiler is that a combi eliminates the need to store hot water - so the hot water cylinder in the airing cupboard can be removed, freeing you space. It is both a high-efficiency water heater and central heating boiler, combined (hence the name) within one compact unit which usually sits in the kitchen or utility room, or sometimes in the airing cupboard. The space savings result from the fact there is no hot water storage cylinder, cold water storage cistern or other familiar components of a regular (conventional) heating system.

The further benefits of this are a significant saving on hot water costs, and the fact that hot water is delivered through your taps or shower at mains pressure. So you can enjoy powerful showering without the need for a pump. Another combi benefit is that it can generally save you money on installation time and costs -- no tanks in the roof space means less pipe work and a shorter installation time.

A thermostatically-controlled shower safeguards against sudden changes in water temperature.

What is a regular boiler?

If you are replacing an older model of boiler, the chances are that you will have a regular (conventional) boiler. A typical conventional system incorporates a boiler and extended controls, a feed and expansion cistern, and a hot water cylinder (usually in the airing cupboard) which is often fed by a cold water storage cistern located in the loft.

What is a system boiler?

Unlike a combi, both a system boiler and a regular (conventional) boiler work on the principle of stored hot water -- but a system boiler differs from a regular boiler in some important respects.

Many of the major individual components of the heating and hot water system are built in, which means that installation is quicker, neater, easier and more efficient.
The boiler includes an expansion vessel so there is no requirement for a feed and expansion tank in the loft, which allows the installation to save space.


Most suitable system type

You want to use your loft space for a room conversion or other purposes


You live in a flat or bungalow (i.e. have very little or no roof space)


Your home has more than 2 bathrooms

Regular or System

Your mains water pressure is low

Regular or System

You want to replace an old boiler to improve an existing conventional central heating system

Regular, System or Combi

The number of people in your household means that there is regular demand for hot water on tap, but waiting for the tank to constantly refill and heat up is, or would be, inconvenient


Unvented Hot Water

This is a system often specified by home makers who want a versatile output but need to save as much space as possible.
An unvented hot water cylinder means there is no need for a cold water storage tank whilst still keeping all the benefits of a conventional system and more.

All you need is to site your gas central heating boiler in your property, position the unvented hot water cylinder (normally in the airing cupboard) and connect the two together and add your controls and an expansion vessel.

This means there are no tanks in the loft area, loft space is saved. An airing cupboard contains the hot water cylinder.
This system kit is quite expensive compared with a normal conventional system or a combination boiler.

You'll definitely need a well skilled installer for this installation which we can supply.


Boiler repairs, boiler installations, central heating repairs







Boiler repairs, boiler installations, central heating repairs

Boiler repairs, boiler installations, central heating repairs


Specialises boiler repairs, boiler installations, boiler cleaning, boiler servicing, boiler maintenance, boiler replacements, boiler breakdowns, boiler fixings, heating repairs, heating installations, boiler services, gas boiler repairs, gas boiler installations, hot water boiler repairs, hot water boiler installations, radiator repairs, radiator installations, common boiler repairs, common boiler installations, combination boiler repairs, combination boiler installations, gas combination boiler repairs, gas combination boiler installations, solar heating repairs, solar heating installations, solar un vented heating repairs, solar un vented heating installations, under floor heating repairs, under floor heating installations, radiant heating repairs, radiant heating installations, radiant floor heating repairs, radiant floor heating installations, radiant ceiling heating repairs, radiant ceiling heating installations, heating controls repairs, heating controls installations, central heating repairs, central heating fault finding, central heating services repairs, heating services repairs, heating services maintenance, heating systems, central heating services, central heating systems, central heating services installations, central heating services maintenance, conventional heating to combination boiler heating
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Boiler repairs, boiler installations, central heating repairs
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