How much does it cost to fit an air source heat pump?

Let’s Fix Group Ltd sizes, fits, services and repairs air source heat pumps with its own Gas Safe engineers led by David Prince. Call the team to arrange a survey and a written, fixed price.

Heat pump quotes swing by thousands, and most of that swing has nothing to do with the unit on the wall.

David Prince heads a team of our own Gas Safe engineers, never subcontractors, across Greater London and the South East, and whether you need air source heat pumps or air source heat pump services Croydon, we cover the whole area.

Book a heat pump survey and get a written price built on your home’s actual heat loss.

How much does it cost to fit an air source heat pump?

Fitting an air source heat pump in a typical home usually costs several thousand pounds once the unit, cylinder, pipework, controls and labour are counted. The exact figure depends on the size of the heat pump, the state of your existing radiators and pipework, and how much work the installation position needs.

What actually makes up the price of an installation

Nobody can quote a heat pump properly from a phone call, and any figure given that way is a guess. The cost is built from parts you can see and parts you cannot. The outdoor unit itself is the headline item, sized to the heat loss of your house rather than picked off a shelf. Then there is the hot water cylinder, because a heat pump runs at lower flow temperatures and needs a cylinder with a bigger coil to heat water at a sensible speed.

After that comes the work inside the house. Pipework often needs upsizing so it can carry more water at a lower temperature. Some radiators may need to be larger. There is the base or wall bracket outside, the electrical supply, the condensate run, insulation, commissioning and the paperwork that goes with it. Each of those lines moves the total, which is why two houses on the same street can land on different numbers.

We price all of it up front so you know what you are agreeing to before anyone lifts a tool. There are no surprise call-out charges bolted on at the end. Whether you need air source heat pumps or air source heat pump installation in High Wycombe, we cover the whole area with our own engineers.

Why the survey decides your final figure

A proper survey is where the price stops being a range and becomes a number. That means a room by room heat loss calculation, a look at the existing radiators and pipe sizes, a check on the electrical supply, and a decision on where the outdoor unit can sit so it works well and does not annoy anyone. Cutting corners here is how people end up with a heat pump that costs a fortune to run.

The survey also tells you what you do not need. Plenty of homes keep most of their existing radiators, which takes a large slice off the total. Others need very little pipework changed. Guessing high protects the installer, not you, so we measure instead. Whether you need air source heat pumps or heat pump installation services Luton, we cover the whole area.

Searching for a heat pump installer near you? With engineers based in and around the boroughs and towns we cover, someone can usually be with you quickly for the survey.

What you pay for after the heat pump is running

The fitting cost is not the whole story, and it would be dishonest to pretend otherwise. A heat pump needs an annual service to keep the refrigerant circuit, filters, flow rates and controls working as designed, and to keep the manufacturer guarantee valid. That is a modest yearly cost against a system that should run for well over a decade.

Repairs happen too. Sensors fail, condensate lines freeze, expansion vessels lose pressure and controls drift out of setting. We handle heat pump repair and maintenance as well as installation, so the people who fitted it are the people who come back. Around nine in ten repairs are sorted the same day, because there are engineers covering the area rather than one van chasing the whole region. Our air source heat pump installation services and our aftercare sit in the same team.

We also work on the rest of the heating system, so if your boiler, cylinder or radiators need attention at the same time, it is one conversation rather than three.

Getting a figure you can rely on

David Prince has over 20 years behind him on London heating systems and heads a team of our own Gas Safe engineers, never subcontractors, across Greater London and the South East. Where gas work sits alongside a heat pump changeover, that registration matters, and the Gas Safe Register is the place to confirm any engineer who works on gas.

Installations carry a ten year guarantee. The team is fully insured, the pricing is fixed and clear before the job starts, and the house is left as it was found. If you want a number rather than a range, ask for a survey and you will get a written price against a real heat loss calculation, not a ballpark from a rate card.

• Sizing drives cost. A heat pump matched to your heat loss is cheaper to buy and cheaper to run than an oversized one.
• Radiators are not automatically scrapped. Many homes keep most of them, which cuts the total.
• Cylinders count. A heat pump ready cylinder is part of the price on most jobs.
• Aftercare is budgetable. An annual service and occasional repair keep the running cost predictable.