FirmusHeat - Servicing all your Plumbing, Heating and Drainage needs.

Expert domestic and commercial plumbers offering totally reliable and guaranteed installation and repair service in Bushey, Harrow, Edgware, London and surrounding areas

Boiler Installation

Boiler Installation

Installation and servicing of all makes of Boilers. Conventional, System or Combination Boilers.

Plumbing Services

Plumbing Services

Emergency plumbing, toilet system repairs. Water Softener installation and maintenance.

Central Heating Power Flush

Powerflush Central Heating

Magnetic Powerflush and chemical cleaning of your Central Heating System to increase its efficiency.

Central Heating Installation

Central Heating Installation and Repair

We install complete Central Heating systems for your home or business.


Drainage unblocking and Installation

CCTV Drain Surveys supplied with a customer DVD. Jet washing and emergency blocked drain rodding.

Landlord Gas Certificate

Landlord Gas Certificate

It is a legal obligation for Landlords to have an annual gas check on all gas appliances in rental accomodation.

Plumbing & Heating Tips

Comments Our top money saving plumbing tips and tricks for homeowners.

Stopcock Plumbing emergencies may require quick thinking. Make sure you know where the main 'stopcock' for the water is, just in case.


Don't pour fats or cooking oils down the drain - they will harden in the pipes and create clogs. - it's the number one cause of blockages.


To prevent stop cocks from seizing up, grease them and turn them off and back on twice a year. They may to operate due to lack of use.


Guard Against Freezing. Make sure any pipe work which may be exposed to freezing conditions is properly lagged. Check pipes in the attic and basement if you have one.

More helpful tips are available here

FirmusHeat are expert Domestic and Commercial plumbers offering a totally reliable and guaranteed installation and repair service in the Watford, Chesham, High Wycombe areas.

FirmusHeat are specialists in central heating, boiler servicing and repairs. Our expert Gas Safe engineers provide reliable local plumbing services to domestic and commercial customers.

We provide quick and dependable plumbing services including:

  • boiler installation
  • replacement boilers
  • heating services
  • emergency plumbing
  • emergency plumbing
  • heating services
  • central heating systems and servicing
  • blocked drain repairs
  • drainage surveys

as well as general plumbing and leaks.

For more information please contact us.