Air Source Heat Pump Installation in Cardiff

Gas Safe registered engineersFixed prices agreed before workOFTEC & MCS certified where requiredRepairs, servicing & installations

MCS certification isn't decoration: it's the standard covering design, installation and paperwork that the Boiler Upgrade Scheme requires, and it's mandatory for every heat pump installer on this network. No MCS, no grant, no listing here.

Cardiff heating notes: Cardiff's Welsh Water supply from Brecon Beacons reservoirs is soft — scale is a minor player, and the city's heating and hot-water work leans toward Victorian terrace pipework and the huge Cardiff Bay apartment stock. Cardiff's terraces in Roath, Canton and Grangetown carry classic Edwardian heating and hot-water layouts, while Cardiff Bay and the city centre have added thousands of flats with communal risers and boosted mains. Mains supply here is managed by Welsh Water.

How a heat pump heats your home

An air source heat pump extracts heat from outside air — it works well below freezing — and concentrates it via a refrigeration cycle into your heating water. Because it moves heat rather than burning fuel, it delivers around 3 units of heat per unit of electricity across a season (the figure quoted as SCOP). The design consequence: heat pumps run cooler than boilers, so radiators are sized larger and the system runs longer and gentler. Comfort is excellent when designed right — steady warmth rather than blast-and-cool cycles.

Is your home suitable?

The suitability checklist: reasonable insulation (loft and, ideally, wall), space outside for the unit with clearance and a spot that respects neighbours, room for a hot water cylinder, and emitters that can be made to work at lower flow temperatures — meaning some radiator upsizing is common and underfloor heating is ideal. Planning permission is usually not required under permitted development, with rules on unit placement. None of these is exotic; the survey checks all of them and prices what's missing.

Installation, MCS and what you receive

A typical installation runs two to five days: outdoor unit positioned and mounted, cylinder installed, any radiator upgrades fitted, pipework and controls connected, then commissioning — where the system is balanced, flow temperatures set, and performance verified. MCS certification wraps the whole process: accredited design standards, the installation itself, and the certificate and handover pack you receive, which the grant, some insurers and future buyers will expect to see.

Every air source heat pump installation job in Cardiff starts with the same discipline: confirm what the customer is actually experiencing, check the system-side basics before assuming the appliance is at fault, and state the price before doing anything. It sounds obvious, and it is precisely what generates the complaints we hear about other firms.

Frequently asked questions

How long does installation take?

Two to five days for most homes: outdoor unit, cylinder, any radiator upgrades, controls and commissioning. You'll have the honest schedule with your quote, including any day the heating or hot water is offline during changeover.

Do heat pumps work in cold UK winters?

Yes — modern units heat effectively well below freezing, and countries far colder than the UK run on them at scale. Efficiency dips on the coldest days, which the design accounts for; the system is sized to hold the house at temperature through a design-condition cold snap.

Do I need planning permission?

Usually not — most installations fall under permitted development, subject to rules about unit siting. Listed buildings and conservation areas have extra considerations. The survey flags anything relevant to your Cardiff property before you commit.

How much does an air source heat pump cost in Cardiff?

Typically £7,000–£14,000 installed before support, depending on property size, radiator upgrades and cylinder work. The Boiler Upgrade Scheme grant — amount confirmed at quote time — reduces that for eligible homes, claimed by the MCS installer on your behalf.