£199 (summer offer — normally £249) · Your own independent system specification, built from your real usage — so installers quote to your terms, not theirs. The most expensive mistake in home energy is buying the wrong system confidently.
Your EPC, a 12-month smart-meter export, and photos of your consumer unit, loft and roof. No site visit, no salesperson in your kitchen.
Your usage is analysed the way a plant specification would be: loads, patterns, fabric, constraints — then a system envelope is calculated to fit.
“Quote against this — no deviation.” Every tender that comes back is directly comparable, and sized for you rather than for commission.
Installers size systems to sell. A specification built independently from your usage data sets the terms before the sales pitch starts — and makes every quote directly comparable.
Your EPC, a 12-month smart-meter export and a few photos: consumer unit, loft and roof. That's it.
Yes — and it works beautifully: the £69 Second Opinion then verifies each tender against your own specification.
Fixed fee. No hardware sales, no commission, engineer-led — you pay us, so we answer only to you.
Pay £199 & start →or ask a question first