Heat Pump Installers in West Sussex
Browse 27 MCS-certified Heat Pumps installers in West Sussex. All installerslisted below are verified on the MCS register. The Boiler Upgrade Scheme covers up to £7,500 of the installation cost. 15 installers have Google ratings, averaging 4.6/5.
Showing 27 Heat Pumps installers in West Sussex
A Greener Alternative Ltd
east-sussex, hampshire, kent +1 more
A S Mechanical & Electrical Ltd
berkshire, dorset, hampshire +3 more
AQUAGAS ENERGY LTD
city-of-london, east-sussex, greater-london +2 more
Baystar Limited t/a Baystar Energy
berkshire, city-of-london, greater-london +2 more
CC Solar Smart Eco Homes Ltd
west-sussex
Correct Contract Services Ltd
berkshire, buckinghamshire, east-sussex +6 more
E.Reina Limited T/A Reina Group
east-sussex, essex, kent +2 more
EMW Franchising Ltd t/a EnergyMyWay
berkshire, bristol, buckinghamshire +10 more
Energize (UK) Limited
berkshire, dorset, down +7 more
EnergyMyWay (Oxford) Ltd t/a EnergyMyWay
berkshire, bristol, buckinghamshire +10 more
Gas & Green Energy Limited
hampshire, isle-of-wight, west-sussex
Greenman Solar Ltd
berkshire, buckinghamshire, east-sussex +6 more
Hudsons (Electrical Contractors) Ltd
berkshire, buckinghamshire, east-sussex +6 more
Infinity Renewables Group Ltd
city-of-london, east-sussex, greater-london +2 more
JPEC Electrical Limited
city-of-london, east-sussex, greater-london +2 more
Marble Electrical Contractors Ltd
dorset, hampshire, kent +2 more
Optimum Renewables LTD
east-sussex, kent, west-sussex
Paine Manwaring Ltd
hampshire, surrey, west-sussex
Paynes Heating and Plumbing Services Ltd
east-sussex, west-sussex
PDP Services Ltd
west-sussex
Platinum Eco Services Ltd T/A Platinum Park Home Services
east-sussex, west-sussex
Porter Heating Ltd
west-sussex
SJM Renewables (southeast) ltd
west-sussex
Solar Renewable Installations Ltd
newport, berkshire, buckinghamshire +7 more
Thermoserv Ltd
city-of-london, greater-london, surrey +1 more
Volt Energy Southern Ltd
hampshire, isle-of-wight, west-sussex
How do you choose a Heat Pumps installer in West Sussex?
Check MCS Certification
Only MCS-certified installers qualify you for the Boiler Upgrade Scheme grant of up to £7,500. Verify your installer on the MCS register. 27 installers serving West Sussex are currently certified.
Get a Heat Loss Survey
A proper installer will survey your home and carry out a heat loss calculation before recommending a system size. This determines the kW capacity needed. Be wary of quotes given without a home visit in West Sussex.
Compare Brands & SCOP Ratings
Ask which brand and model is being quoted. Look for a SCOP rating of 3.5+ for air-to-water systems. Daikin, Mitsubishi Electric, Samsung, and Grant are the most common brands used by UK installers.
Check Insulation Requirements
Heat pumps need a well-insulated home (EPC C or better). Ask the installer whether your current insulation is adequate or if upgrades are needed first. Separate insulation grants may be available through ECO4 or the Great British Insulation Scheme.
Verify Warranties
Heat pump manufacturers typically offer 5–7 year product warranties. Ask about the installer’s workmanship warranty (minimum 2 years). Some brands like Daikin offer extended warranties up to 10 years when installed by an accredited partner.
Ask About Running Costs
A good installer will estimate your annual running costs compared to your current heating system (oil, gas, or solid fuel). With a SCOP of 3.5, a heat pump uses roughly one-third the energy of a direct electric heater for the same heat output.
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Solar yield, savings calculator, and local data for West Sussex.
Solar Incentives in West Sussex
0% VAT, Smart Export Guarantee, and other incentives for West Sussex.
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MCS-certified solar panel installers in West Sussex. 0% VAT on residential installs.
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MCS-certified solar thermal in West Sussex.
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MCS-certified biomass in West Sussex. Grant up to £7,500.
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Frequently Asked Questions About Heat Pump Installers in West Sussex
How do I find a good heat pump installer in West Sussex?
Check that the installer is MCS certified, as this is required to claim the Boiler Upgrade Scheme grant of up to £7,500. A good installer will carry out a full heat loss calculation for your home before recommending a system size. Compare at least 2–3 quotes from installers in West Sussex, ask for references, and verify they carry public liability insurance. Look for experience with the specific brand they’re quoting.
How much do heat pump installers in West Sussex charge?
A typical air-to-water heat pump installation in West Sussex costs £8,000–£14,000 before the Boiler Upgrade Scheme grant. The grant provides up to £7,500, which can bring the net cost down to as low as £500–£6,500. Prices vary based on the heat pump brand (Daikin and Mitsubishi are most common), system capacity, whether you need a new hot water cylinder, and the complexity of the pipework. Ground source systems are more expensive at £12,000–£20,000.
Are heat pump installers in West Sussex MCS certified?
Not all heat pump installers are MCS certified. You must use an MCS-certified installer to qualify for the Boiler Upgrade Scheme grant of up to £7,500. MCS maintains a public register at mcscertified.com. On this page, 27 of the 27 listed installers are MCS certified. Look for the “MCS Certified” badge on each listing.
How long does heat pump installation take?
A typical air-to-water heat pump installation takes 2–3 days. If the existing radiators need upgrading or underfloor heating is being added, it may take longer. The full process from initial survey to completed installation is usually 6–12 weeks, including the heat loss survey, Boiler Upgrade Scheme application, equipment ordering, and installation scheduling.
Do I need to upgrade my insulation before getting a heat pump?
It is recommended your home has an EPC rating of C or better before installing a heat pump. Heat pumps operate at lower flow temperatures than oil or gas boilers, so good insulation is essential for them to work efficiently. Your installer should carry out a heat loss calculation — if your home loses too much heat, they may recommend loft, cavity wall, or external insulation first. Separate grants may be available through schemes such as ECO4 or the Great British Insulation Scheme.
Get a Free Heat Pump Quote
Connect with MCS-certified heat pump installers in West Sussex.
Sources
Last updated: August 2026
Fact-checked by John Rooney, Solar Energy Editor. Editorial policy