How to Get and Compare Solar Panel Quotes
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Gathering quotes is the most important practical step in buying solar, and the one most likely to save — or cost — you money. A little structure turns a confusing pile of figures into a clear comparison. Here is how to get quotes worth comparing, and how to read them properly.
Always get at least three quotes
One quote tells you a price; three tell you whether it is a fair price. We recommend obtaining at least three quotes, all from MCS-certified installers, so you can spot an outlier in either direction and judge what represents good value for your home. Solar pricing varies legitimately with roof complexity, system size and components, so seeing a spread is normal and useful — what you are looking for is the quote that offers the best combination of quality and price, not simply the lowest number.
What every quote should include
A quote you can actually compare should clearly state:
- The total system size in kilowatts-peak (kWp) and the number of panels.
- The panel make, model and wattage, with the product and performance warranties.
- The inverter make and model, and whether optimisers or micro-inverters are included.
- Any battery, its capacity in kWh, brand and warranty.
- The estimated annual generation in kWh and a realistic savings estimate.
- A single, all-inclusive price covering scaffolding, wiring, the network operator notification and commissioning — with 0% VAT applied correctly.
- The installer's MCS number and consumer-code membership (RECC or HIES).
If any of these are missing, ask for them. A reputable installer provides this detail as standard; reluctance to do so is itself informative.
Watch for these pricing tricks
- Inflated "before" prices. A huge "discount" from a fictional higher price is a sales device. Judge the final figure on its merits.
- Same-day-only deals. Genuine pricing does not expire overnight. Pressure to sign immediately is a red flag.
- Split quotes. Be wary of an "electrical upgrade" billed separately, which may attract standard-rate VAT and obscure the true total.
- Vague bundles. If you cannot see what each part costs, you cannot compare like with like.
- Optimistic generation figures. Compare the estimated annual kWh between quotes; an unusually high figure may be flattering the savings.
Quotes need a survey
A meaningful quote follows a survey of your roof — its size, pitch, direction, shading and the state of your electrics. A figure offered purely over the phone, before anyone has assessed your property, is guesswork. Increasingly, installers do an initial assessment using detailed aerial imagery and then confirm with a visit; either way, the quote should reflect your roof, not a generic template. See five questions to ask for what to cover during that survey.
Comparing on value, not just price
The cheapest quote is not automatically the best, nor is the dearest. A slightly higher price that buys better panels, a stronger inverter, proper shading mitigation and an installer who will still be around to honour the warranty can be far better value over 25 years than a rock-bottom figure that cuts corners. Lay the quotes side by side, line up the specifications, and weigh quality, warranties and aftercare alongside the headline number. Our guide to cheap solar panels explains where corners tend to be cut.
Take your time
Finally, do not let anyone rush you. Solar is a long-term decision, and the materials and a fair price will still be available next week. Collect your quotes, line them up against the checklist above, sleep on it, and choose the installer whose design, transparency and manner you trust most. Done patiently, comparing quotes is straightforward — and it is where the savviest buyers make their best savings.
Keep your comparison on record
As the quotes arrive, jot the key figures into a simple table: system size, panel and inverter make, battery if any, estimated annual generation, all the warranties, and the final all-inclusive price. Laid out side by side, the differences that matter leap off the page, and any odd one out — a suspiciously low price, an unusually high generation claim, a missing warranty — becomes obvious. This small discipline also signals to installers that you are a careful buyer, which tends to bring out their best and discourages the vaguer sales tactics.
Beware the "free survey, instant price" pitch
Some operators offer a same-day visit that ends in a high-pressure pitch and a price that "expires" if you do not sign on the spot. A genuine survey followed by a considered written quote is a different thing entirely. There is no legitimate reason a fair price should vanish overnight, so treat urgency as a warning rather than an opportunity. The best installers are happy for you to take their quote away, compare it with others, and come back when you are ready. Patience costs you nothing and protects a five-figure decision.
A final word on trust
Ultimately, a quote is also a glimpse of the company behind it. Clear pricing, a proper survey, realistic generation figures and a willingness to answer questions all point to a firm that will look after you long after the scaffolding comes down. Vagueness, pressure and inflated promises point the other way. Use the figures to compare value, but pay attention to the conduct too — the way an installer behaves while courting your business is usually a fair preview of the aftercare you will receive once they have it.
One last practical tip: ask each installer to confirm the headline points of their quote in writing, by email if nothing else. Verbal assurances are easily forgotten or disputed, whereas a written specification — system size, components, warranties and the all-inclusive price — gives you a firm basis for comparison and a record to hold the company to later.
Comparing quotes well is where the savviest buyers save the most, so it rewards the modest effort it takes. A clear table, three honest quotes and a little patience routinely beat the best discount a single high-pressure salesperson can offer.
