Air Source Heat Pump
Installation in Basingstoke

A heat pump installation designed around your property — correctly sized, professionally fitted, and commissioned to perform from day one.

15+ years in heating & ventilation. F-Gas certified. Installations commissioned to manufacturer specification.

Air source heat pump installation is the design, supply, and fitting of a complete heating system that extracts renewable energy from the air to heat your home and provide hot water. When correctly installed, a heat pump delivers lower running costs than gas or oil, reduces your carbon footprint, and qualifies for government incentive schemes.

This service is for homeowners building new properties, replacing ageing boilers, or transitioning away from fossil fuel heating. It covers everything from initial survey and system design through to installation, commissioning, and handover.

The quality of installation determines whether a heat pump delivers on its promise. A heat pump paired with incorrectly sized radiators, poorly configured weather compensation, or inadequate pipework will underperform — regardless of the brand. We design the complete system, not just select a unit.

We install all major brands including Mitsubishi Ecodan, Daikin Altherma, Samsung EHS, Vaillant Arotherm, and Grant Aerona. Every installation is fully commissioned with documented settings, flow rates, and performance verification.

A heat pump installed without proper heat loss calculations and emitter sizing will run at high flow temperatures, reducing the COP and costing more to run than a well-configured system. Many homeowners experience this and conclude heat pumps do not work — when the problem is the installation quality.

Incorrect commissioning is the leading cause of heat pump underperformance in the UK. The BEIS Electrification of Heat Demonstration Project found that well-installed heat pumps consistently achieved COPs above 3.0, while poorly installed systems struggled to reach 2.0.

Choosing an installer based on price alone often results in cut corners — undersized pipework, missing buffer tanks, no weather compensation setup, and generic controller settings that waste energy. The initial saving is quickly eroded by higher running costs.

If your system is installed under the Boiler Upgrade Scheme (BUS) without meeting MCS standards, you risk having to repay the grant. Proper design, installation, and commissioning documentation is essential.

Heat loss calculations are performed room by room using U-values for walls, floors, ceilings, windows, and doors, combined with ventilation heat loss estimates. This determines the design heat load at the coldest expected outdoor temperature for your location. The heat pump is then sized to meet this load at a flow temperature that matches your emitter type.

Emitter sizing is critical. Radiators designed for a gas boiler running at 70°C flow temperature will not deliver adequate heat at the 35–45°C flow temperatures typical of an efficient heat pump installation. We calculate the required radiator output at low flow temperatures and recommend upgrades where needed.

We install monobloc systems (all refrigerant components in the outdoor unit, water connections into the property) and split systems (refrigerant connections between indoor and outdoor units). Monobloc systems are more common in domestic installations as they avoid the need for an F-Gas qualified installer to make refrigerant joints inside the property.

Hot water cylinder selection is important. Heat pump cylinders require larger coil surface areas than standard boiler cylinders to transfer heat efficiently at lower flow temperatures. We specify cylinders designed specifically for heat pump use.

Buffer tanks and low-loss headers are used where the system design requires them — for example, when the minimum flow rate of the heat pump exceeds the flow requirement of the smallest heating zone. We assess whether a buffer is needed based on the specific system design, rather than including one by default.

All installations include appropriate controls — typically a room thermostat, weather compensation sensor, and in many cases, zone control for different areas of the property. Smart thermostat integration is available where requested.

Electrical supply requirements vary by heat pump size. Domestic units typically require a 32A or 40A dedicated circuit. We coordinate with your electrician or provide the electrical connection as part of the installation.