Already Have a Solar Quote? Get It Sanity-Checked for Free
Solar is a 25-year purchase, and most people only ever see one quote. Before you sign, let a second set of MCS-certified eyes go through it line by line. If it's a good deal, we'll say so — and you can sign it with confidence.
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Why Get a Second Opinion?
Two solar quotes are rarely quoting the same job. One includes scaffolding, the grid application and an insurance-backed warranty; another leaves them out to hit a headline price. The checklist below is what we'd want spelled out before signing anything — whether the quote is ours or anyone else's. We don't do name-and-shame — and when a quote is solid, we say so.
What a Scottish Solar Quote Should Include
Ten things to check before you sign. Bring your quote to us and we'll go through every one of them with you — free.
Full hardware spec, by name
A good quote: Panel make, model and wattage; inverter brand and model; battery make with its usable capacity in kWh. Every component named, so you can look up its warranty and real-world reviews.
Red flag: "Tier 1 panels" or "premium battery" with no model names. You can't compare prices, check warranties or verify claims on a mystery product.
Scaffolding — included or extra?
A good quote: Scaffolding on a simple two-storey Scottish home usually costs between £500-£750, but can cost significantly more if the job is complicated.
Red flag: No conversation or written documentation regarding scaffolding at all — which could mean a surprise invoice after you've signed.
Who handles the DNO application (G98/G99)
A good quote: Bigger systems need sign-off from your electricity network operator — a "G99 application". The quote should say who handles it and whether it's included in the price.
Red flag: No mention of the G99 at all, or no straight answer on cost — some companies charge extra for the application.
MCS certificate — and when you'll get it
A good quote: No MCS certificate, no Smart Export Guarantee application — you can't get paid for exported electricity without it. It should be issued within days of commissioning, and the quote should say so.
Red flag: Vague or missing certificate timelines. Every week spent chasing paperwork is a week of export income you can't claim.
Workmanship warranty, in writing, insurance-backed
A good quote: A stated workmanship warranty (separate from the panel and inverter manufacturer warranties) that's insurance-backed — so it still protects you even if the installer stops trading.
Red flag: Verbal promises, or a warranty that lives and dies with the company that gave it.
Realistic generation figures
A good quote: MCS methodology puts most of central Scotland at roughly 790–860 kWh per kWp per year for a south-facing roof (Glasgow ~840, Edinburgh ~860). So a 4 kWp system in Glasgow generating around 3,360 kWh a year is realistic — and the quote should show the MCS estimate for your actual roof.
Red flag: Generation promises far above the MCS estimate with no shading or orientation survey to justify them. Optimistic kWh in the quote become disappointing kWh on your roof.
Honest savings assumptions
A good quote: The savings maths should state its assumptions: the electricity price used, how much of your generation you're assumed to use yourself, and export income at a realistic Smart Export Guarantee rate. Savings are always estimates — a good quote says so.
Red flag: Not showing how the savings figure is worked out, or assuming you'll use 100% of the electricity your panels generate. (A generation guarantee backed by the MCS estimate is different — generation is measurable; savings depend on usage and prices no installer controls.)
VAT shown correctly
A good quote: Home solar and battery installations are zero-rated for VAT until 31 March 2027. The quote should simply reflect that in the price.
Red flag: 0% VAT dressed up as a special discount the installer is generously giving you — it's government policy, and every installer's price includes it.
Deposit protection and cooling-off
A good quote: MCS installers must belong to a consumer code with deposit protection — the quote should say which one. You also normally have a 14-day cooling-off period for contracts signed at home or online.
Red flag: Pressure to sign for a "tonight only" discount. A real price is still real next week — manufactured urgency usually means the maths doesn't survive a second look.
Been told about a government grant as part of the pitch? Check it against our guide to what solar funding actually exists in Scotland in 2026 — some schemes salespeople still mention were withdrawn years ago.
How the Quote Check Works
No pressure, no hard sell — a plain-English verdict on the quote in front of you.
Book a Slot
Pick a time that suits you — a quick call or a home visit, whichever you prefer. Have the written quote to hand.
We Go Through It Line by Line
Hardware, scaffolding, grid paperwork, MCS timeline, warranty, generation and savings assumptions — checked against the nine points above.
You Get a Straight Answer
If the quote holds up against the checklist, we'll tell you — sign it with confidence. If it falls short, we'll show you exactly where, and you decide what to do next.
Don't Take Our Word for It
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Our Word, In Writing
No asterisks the size of icebergs. Three promises, plain English.
Your deposit is protected
Independent insurance covers it from the moment you pay it. Your deposit is never at risk.
Our workmanship is guaranteed for ten years
A decade of cover on the work itself, backed by insurance rather than a handshake. If anything needs putting right, we put it right.
Your first year's output is guaranteed
If your system generates less than its official MCS production estimate, you're covered in full — on the rare chance it's ever needed.
Quote Check Questions
No. Our policy is simple: we don't name or criticise other installers — we check the quote against the same checklist on this page, whoever wrote it. If it holds up, we'll tell you so — even though we'd rather win the job ourselves. If something's missing or the numbers look optimistic, we'll show you exactly where, in plain English.
Just the written quote or proposal you were given. If it includes a system design or generation estimate, bring that too. A recent electricity bill helps us sense-check the savings assumptions but isn't essential.
It's free and there's no obligation. Our angle is simple and we're open about it: some people who get a quote checked ask us to price the same system, and we win enough of those to make the time worthwhile. If you take your original quote, you've lost nothing and gained a second opinion.
Usually not. Contracts signed in your home or online normally come with a 14-day cooling-off period, and MCS installers must belong to a consumer code that protects your deposit. It's still worth checking the quote — you may be perfectly happy to proceed once you've seen it stands up.
The same few come up again and again: unnamed "Tier 1" hardware, scaffolding missing from the price, nobody handling the G99 grid application, generation figures well above the MCS estimate for the roof, and discounts that expire the moment the salesperson leaves. Any one of them is worth a second look before you sign.
Can't find the answer you're looking for?
Two Quotes Beat One
Bring us the quote you've got. Fifteen minutes with it could save you from a 25-year mistake — or confirm you've already found a good deal.
Not sent a quote yet and just want a feel for the numbers first? Try our solar calculator to estimate your savings.