Heat pumps installed by people who understand how buildings actually work.
Air source heat pump installation across London and the Home Counties. MCS-certified, Boiler Upgrade Scheme registered, and properly sized for your property — not just bolted on and hoped for.
Heat pump installation done properly — not retrofitted and regretted.
Most heat pump installers fit the unit, hand over the controls and leave you wondering why your bills are higher than expected. The problem is almost always poor sizing, inadequate insulation assessment, or radiators that are too small for lower-temperature heat distribution. We fix all of that before we touch a tool.
RCB conducts a full heat loss calculation for your property before specifying any heat pump. We assess your existing heating system, insulation levels, radiator sizes and hot water demand. The system we install is sized and configured to actually perform — delivering the comfort, efficiency and EPC improvement we promise.
Every installation is MCS-certified, complies with the Microgeneration Installation Standard: MIS 3005, and is registered under the Boiler Upgrade Scheme (BUS) where applicable. You get access to the £7,500 government grant, a certified system, and a contractor who takes responsibility for the whole outcome.
What's included
A heat pump can improve your EPC rating by one or two bands and reduce carbon emissions by up to 70%
How It Works
The RCB process for this service.
Heat Loss Survey
We calculate your property's exact heat loss to MIS 3005 standards — assessing insulation, glazing, room volumes and existing heating infrastructure before specifying anything.
System Design
Heat pump model, size, hot water cylinder capacity, radiator upgrades and any supplementary elements are specified to match your property's actual demand.
Installation
Typically 3–5 days on site. External unit positioned, refrigerant pipework run, cylinder fitted, controls commissioned and system pressure-tested.
Certification & Handover
MCS certificate issued, BUS grant submission completed, manufacturer warranty registered. Full handover covering controls, maintenance requirements and expected performance.
Planning & Regulations
Air source heat pump installations must comply with the Microgeneration Installation Standard MIS 3005 and be carried out by an MCS-certified installer to access the Boiler Upgrade Scheme (BUS) grant. Planning permission is generally not required for air source heat pumps in England under permitted development rights, subject to noise level conditions (under 42dB at 1 metre from neighbour\'s windows and doors). Building Regulations notification under Part L (conservation of fuel and power) and Part P (electrical) applies. F-Gas regulations apply to refrigerant handling.
FAQs
Common questions.
What is the Boiler Upgrade Scheme and how much is the grant?
The Boiler Upgrade Scheme (BUS) provides a £7,500 grant toward the cost of an air source heat pump, reducing the upfront cost to the homeowner. The grant is applied directly by the installer — you do not need to claim it yourself. The installer must be MCS-certified and the property must have a current EPC with no outstanding loft or cavity wall insulation recommendations. RCB is registered under the BUS.
How much does a heat pump cost to install in London?
Air source heat pump installation typically costs £8,000–£15,000 depending on property size, system specification and what upgrades are required to the existing heating system (radiators, cylinder, pipework). After the £7,500 BUS grant, net costs are often £2,000–£7,000. RCB provides a fixed price following a full heat loss survey.
Will a heat pump work in my home without major works?
It depends. Heat pumps operate at lower flow temperatures than gas boilers (around 45–55°C versus 70–80°C), so they need larger heat emitters — either larger radiators or underfloor heating — to deliver the same comfort. Some properties need radiator upgrades to work efficiently; others are compatible as-is. Our heat loss survey determines exactly what your property needs before we commit to anything.
How will a heat pump affect my energy bills?
A properly sized and installed heat pump typically costs less to run than a gas boiler for heating — a Coefficient of Performance (COP) of 3 means you get 3kWh of heat for every 1kWh of electricity consumed. With electricity costs higher than gas per unit, the key is efficiency: a poorly sized or installed heat pump will cost more to run. A properly designed system should achieve lower annual running costs in most London homes.
What is an EPC and how will a heat pump affect mine?
An Energy Performance Certificate (EPC) rates your home's energy efficiency from A (most efficient) to G. Heat pumps are counted very favourably under SAP methodology (the calculation behind EPCs) and typically improve an EPC rating by one or two bands. This can matter if you are planning to sell or remortgage, or if your property is in the rental sector where minimum EPC standards apply.
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