This article contains affiliate links. We may earn a commission if you buy through our links, at no extra cost to you. Last reviewed: August 2026. Heatable hardware and process are from heatable.co.uk/solar. iHeat floors are from iheat.co.uk/solar on 21 August 2026. Heatable cash figures are a 20 August evening snapshot from their quote tool. There is no Boiler Upgrade Scheme money on solar. Boiler installs sit on a different review.
Heatable will design your solar roof in 3D and quote LONGi Hi-MO X10 485W panels. They print a cash price in the quote tool. Last logged 20 August evening: Alpha from £5,690, Sigenergy 9.04kWh from £6,100, Powerwall 3 from £7,595. Those figures move with the postcode.
iHeat is the public catalogue: from £4,295 solar-only, or from £6,145 with a small battery. Boiler installs are a different page: the Heatable review. Cash figures are in the solar panel cost guide.
The short version
Heatable will draw the roof in 3D and quote LONGi Hi-MO X10 485W panels with microinverters. They print a cash price in the quote tool. iHeat publish a catalogue floor: from £4,295, or from £6,145 with a battery. iHeat solar finance is from 9.9% APR Representative Fixed, not 0%. “Pay nothing ’til 2027” is 0% VAT to 31 March 2027, not a 0% APR claim. No BUS on solar.
How Heatable quote a solar roof
You answer a few questions about the house. You draw around the roof on their 3D map. The tool shows how many panels fit, an estimated saving, and a cash price. If you enquire, they run a full MCS design. That is the quote. Last floors we logged in the tool on 20 August evening were Alpha from £5,690, Sigenergy 9.04kWh from £6,100, and Powerwall 3 from £7,595. Use the live figure, not that snapshot.
The hardware pitch on their solar page is LONGi Hi-MO X10 485W, all-black, HPBC 2.0, 24% efficiency on their copy, with a 30-year product and performance warranty. Each panel gets a microinverter. MCS installer number NAP-68602. Which? Trusted Trader.
Scaffolding is extra. Their FAQ puts that at about £500-£750 once they know access. They also say a standard install without a battery is typically one day, and with a battery one to two days. Fit times they advertise: as little as 2-3 weeks for solar, or around 4 weeks with storage.
If you want the two firms side by side on boilers, finance and credit, that sits on Heatable vs iHeat. Who to quote for panels in general is best solar panels UK.
