For most of the last decade, buying solar in the UK meant a doorstep visit from someone whose job was to close you on the night. The standard pitch — "the price goes up tomorrow", a tablet with pre-loaded "savings", a paper contract on the kitchen table — was a sales operation first and a quote second. That model is finally on the way out. Online solar quotes, video consultations, and emailed proposals are now genuinely available across the UK.
If you've Googled "buy solar online UK" recently and weren't sure whether it's a real option or a slightly slicker version of the same pressure-sell, this is the honest answer.
What "buying solar online" actually means in 2026
The phrase covers a spectrum, and it's worth knowing which version you're getting.
- Calculator-only — the "online quote" is a sliding-scale calculator. You enter a postcode and roof size, it spits a price. Useful for ballpark, but it's not an install quote — it's a marketing tool.
- Calculator + sales call — the calculator generates a lead, then a phone sales rep follows up to "refine" it (and try to close you). The online part is the funnel, not the sale.
- Full virtual sale — postcode in, video consultation with an actual engineer, custom design, itemised proposal by email. No on-site visit before install day unless the property genuinely needs a survey. This is what we mean by "buying solar online" in any honest sense.
The Geko model sits in the third bucket. So do a small but growing number of UK installers — Egg, Sunsave, and a handful of regional MCS-aligned outfits. None of the big-name doorstep brands have moved here yet, which is why the online search results for "buy solar online UK" are still mostly calculator pages, not real sale-completion paths.
The step-by-step of a real virtual solar consultation
Here's what a proper online buying process looks like end-to-end. Use it as a checklist when you're comparing installers.
- Step 1 — Postcode capture. You enter your postcode (and ideally upload a recent electricity bill). The installer uses satellite imagery to identify your roof, orientation, and any shading. Some installers will give you a credible ballpark within 24 hours from this alone.
- Step 2 — Video consultation. 30–45 minutes with an engineer (not a sales rep). They share-screen your roof on a satellite map, walk through panel placement, talk through how the system will interact with your actual usage (from the bill), and answer questions live.
- Step 3 — Custom design + itemised proposal. Designed in-house, signed off by an MCS or MCS-aligned engineer. The proposal arrives by email: equipment specifically named (brand, wattage, warranty), install cost itemised, finance options shown alongside outright purchase. No bundled "system price".
- Step 4 — Decision on your time. A reputable virtual installer will not pressure you. The quote you're sent is the quote you'd get next month too. If you hear "this price is valid for 7 days" you're back in the doorstep world with extra steps.
- Step 5 — Site survey (only if needed). Listed buildings, conservation areas, unusual roof geometry, or shared roofs sometimes need an in-person check before contract. The survey itself shouldn't lock you in.
- Step 6 — Install day. The first time anyone from the installer sets foot on your property. Typically one day on a single-storey or two-storey UK home. Scaffolding goes up the day before, panels and inverter the next morning.
What you'd actually rather skip
The reason buying solar online matters isn't just convenience. The doorstep sales model has specific problems that disappear when the sale moves to video.
- No commission rep — the salesperson at your door is typically paid 10–18% of the system price. That commission is baked into your quote. A virtual model can strip it out.
- No "valid today" pressure tactics — written, emailed quotes don't pressure-evaporate the way kitchen-table pitches do.
- No bundled pricing — an itemised quote shows you the equipment cost, the labour cost, the scaffolding, the DNO fee, the finance arrangement separately. Bundled "system price" quotes exist to make like-for-like comparisons hard.
- Easier multi-quote comparison — when proposals arrive by email, you can put three installers' quotes side-by-side at your own pace. That alone is worth more than the time you save on the consultation itself.
Where to be careful with online solar quotes
Three things worth checking before you sign anything that came out of a virtual process.
- Is the installer MCS-certified (or aligned + audit-in-progress)? MCS is the gate for Smart Export Guarantee registration and was historically required for 0% VAT eligibility. Always verify on mcscertified.com using the company's MCS number.
- Is the workmanship insurance-backed? An Insurance-Backed Guarantee (IBG) — typically via NICEIC for electrical-installer-routed installs — means your workmanship warranty stays valid even if the installer ceases trading. Without IBG, a 10-year warranty depends on a 10-year company.
- Is the proposal genuinely itemised? If your quote says "4kW system: £8,500 all-in" with no breakdown of panels, inverter, battery, install labour, scaffolding, and DNO fees, that's a bundled quote dressed up as transparent. Ask for the line items.
The short version
Buying solar online in the UK is real, it's increasingly the norm, and it's usually cheaper than the doorstep route once you factor in commission. The only catch is that the model is still new enough that most search results blur "online lead-capture calculator" with "actually completing the sale online". Make sure you know which one you're getting.
If you want to see what a full virtual buying process looks like, our walk-through is at our online solar page — enter a postcode, get a ballpark within 24 hours, book a video consultation if it stacks up. No doorstep visit at any stage.