Air source heat pumps acrossBrighton & Hove
An air source heat pump takes warmth from the outside air and uses it to heat your home and hot water, even on cold days. For every unit of electricity it uses, it delivers three to four units of heat, which is why it can cut heating bills compared with gas, oil or electric heating. We design, install, service and repair them.
Heat pump installation
Every home is different, so we start with a proper heat loss survey. That tells us the right size heat pump, whether your radiators need upgrading, and what hot water cylinder you need. We then install the outdoor unit, cylinder, controls and any pipework changes, commission the system and show you how to run it efficiently. Because we are also Gas Safe registered, we can safely remove and cap your old gas boiler as part of the job.
Heat pump servicing
An annual service keeps your heat pump running at peak efficiency and protects the manufacturer's warranty. We check refrigerant pressures, clean the outdoor unit, test the controls, check the glycol or inhibitor levels and make sure your settings are giving you the lowest running cost.
Heat pump repairs
Not heating, error codes, ice on the outdoor unit or higher than expected bills? We diagnose and repair heat pumps from all major manufacturers, including Mitsubishi Ecodan, Daikin, Vaillant, Samsung and Grant. Many problems are down to settings rather than faults, and we will tell you honestly which it is.

Is a heat pump right for your home?
Heat pumps work best in homes with reasonable insulation and radiators or underfloor heating sized for lower flow temperatures. Many Brighton properties, from 1930s semis to modern flats, are suitable with a few radiator upgrades. Older, poorly insulated homes may need insulation work first. We will give you a straight answer at the survey rather than sell you a system that will not perform.
What it costs to run
A well designed heat pump running at a low flow temperature typically costs the same or less than gas to run, and considerably less than oil, LPG or electric heating. The key is correct sizing and settings, which is why we take the survey and commissioning seriously.
How it works
- 1
Free heat loss survey. We measure your home, check insulation and radiators, and confirm the right system.
- 2
Fixed quote. You get a written price for the full system with no hidden extras.
- 3
Install and commission. We fit the heat pump, cylinder and controls, register the warranty and show you how to get the lowest bills.
Why Brighton homeowners choose Giles Gas & Plumbing for heat pumps
Properly designed. Every install starts with a heat loss survey, not a guess.
Gas Safe and F-Gas registered. We can remove your gas boiler and handle the refrigerant side legally and safely.
Honest advice. If a heat pump is not right for your home, we will tell you.
One engineer for everything. Boiler removal, heat pump, cylinder and controls, all done by us.
Heat pump installation across Brighton, Hove and Sussex
We install, service and repair air source heat pumps in Brighton, Hove, Portslade, Shoreham-by-Sea, Lancing, Saltdean, Lewes, Hassocks, Hurstpierpoint, Burgess Hill, Haywards Heath and Henfield.



