What it costs
Real installed prices for 2026, before and after grant, and the six things that actually move the number on your property.
CostsMCS-certified installation for homes and businesses across Sussex. Free heat loss survey, fixed quote and full grant support.
Sussex has coastal towns from Seaford through Bexhill and Hastings, plus Lewes and Haywards Heath inland, with salt exposure a real factor in outdoor unit specification. That shapes both the design and the price, which is why we survey rather than quote from a postcode.
The Boiler Upgrade Scheme pays £7,500 towards an air source heat pump. Your MCS-certified installer applies and the grant is deducted from your invoice, so you never handle the money. There is no means test.
If the property is off the mains gas grid and currently heated by oil, the grant rises to £9,000 for installations between 21 July 2026 and 31 March 2027. See grants by nation.
Every job starts with a free room-by-room heat loss survey. If a heat pump is not right for your property, we say so then rather than after you have paid for one.
Real installed prices for 2026, before and after grant, and the six things that actually move the number on your property.
CostsThe Boiler Upgrade Scheme in England and Wales, Home Energy Scotland north of the border, and what applies in Northern Ireland.
GrantsSurvey, design, grant, installation and commissioning, with honest timescales and a clear account of the disruption.
ProcessWhy sizing comes from a room-by-room heat loss calculation and never from floor area or your old boiler's output.
SizingWhich radiators need upsizing at a lower flow temperature, and why this is the single biggest swing factor in your quote.
RadiatorsWhy heat pumps need a cylinder, what happens if you are on a combi, and how much space you actually need to find.
Hot water£8,000 to £14,000 installed for most homes, more for large or period property. After the £7,500 Boiler Upgrade Scheme grant most households pay £1,500 to £6,500 net.
Yes. We cover Sussex through MCS-certified regional teams, including survey, design, installation, commissioning and annual servicing.
The Boiler Upgrade Scheme, worth £7,500 towards an air source heat pump, applied for by your installer and deducted from your invoice. Off-gas-grid homes on oil can get £9,000 until 31 March 2027.
Some of them, usually four to six in a typical three-bed. Heat pumps run cooler than boilers, so radiators need more surface area for the same output. The room-by-room heat loss survey identifies exactly which.
Free, no obligation
Every quote starts with a proper heat loss survey, not a guess from your floor area. Tell us about the property and we will come back with honest advice, a clear price and the grant position spelled out.
Tell us about your property and an MCS-certified engineer will be in touch, usually the same working day.
UK coverage
We install air source heat pumps nationwide through MCS-certified regional teams. Grant support differs between England, Wales, Scotland and Northern Ireland, and the regional pages set out what applies where you are.
Get a free, no-obligation quote for heat pump installation in Sussex, with the grant deducted so you see the real figure. We come back to you the same working day.