Quick answers on rooftop solar

South is best, but east and west roofs work well too. Panels on both faces spread the power across the morning and afternoon. Installers check your roof at the survey.

Usually not for panels on a house in England. Conservation areas, listed buildings and flats have extra rules. The Planning Portal explains them, and your council's planning team can confirm.

Yes, but you'll need written permission from your landlord or freeholder before any work. Tell us in the form.

Usually. Installers work around stacks and rear wings. You may fit fewer panels than on a semi, so 3kW is a common starting point.

Many 1930s semis have room for around 4kW on one roof face. Hips, bays and dormers change that, so the survey decides.

We'll only show ranges from real local quotes, with the date they were checked. Until we hold enough, the size table says 'being gathered'.

Panels, inverter, scaffold, fitting, electrics and the network operator notice, each listed. Our line-by-line checklist helps you compare.

No. Panels work without one. A battery helps most if you're out in the day or on a cheaper overnight rate.

Usually. Ask for an inverter that can take a battery, so adding one later is simpler.

Installers who cover your postcode, to arrange a survey and quote. We may email you first if we need to check something.

We pass your request on as soon as we have installers covering your postcode, and they contact you from there. If we can't cover your area, we'll let you know.

Use the contact form and pick 'Withdraw or update my details'. We'll stop, and delete what we don't need to keep.

Yes, for homeowners. You only pay the installer you choose, for work you agree to.