Property guide
Find the Right Solar System for Your Property
Twelve questions about the property, the roof and how you use electricity. At the end you get guidance: which guides to read, which services are likely to be relevant, and what a survey would have to establish. No savings figure, no payback period, no generation estimate — those need a survey and a design.
- Twelve questions
- Guidance, not a quotation
- Nothing leaves your browser
The right system for a Victorian terrace with a shaded rear elevation is not the right system for a 1990s detached house with a clear south roof, and neither is the right system for a barn conversion with a metal sheet roof. This tool sorts the general patterns for you so you can start from the guidance that actually applies to your property rather than from a page written for someone else's.
It is not a design tool and it does not price anything. Use the arrow keys or the mouse to answer, move between steps with the buttons, and the guidance appears on this page beneath the form.
About your property
Step 1 of 4
What this can and cannot do
It can tell you which property guides describe a building like yours, which technology is usually relevant to a roof like yours, and which of our services are likely to be in scope. It can tell you what a surveyor would be looking at when they arrive.
It cannot tell you whether your rafters will carry an array, how much of your roof is genuinely usable once edge zones and obstructions are allowed for, what shades the roof in February, whether your consumer unit can take a generator, or what any of it would cost. Those are survey questions, and they are the reason we survey before quoting. The stages are set out on how Solar Fx works, and the cost factors on solar panel cost.
Common questions
Does this tell me how much I would save?
No, and deliberately so. It produces no savings figure, no payback period and no generation figure. Those depend on measured roof area, real shading, your annual usage, your tariff and your export rate, and none of that can be established from twelve questions. What this does is point you at the guidance that fits your property and tell you what a survey would need to establish.
What happens to my answers?
Nothing leaves your browser. There is no submission, no stored record and no result page with a web address you could share. The guidance is worked out on your own device from the answers you have selected, and it disappears when you close the page.
How accurate is the guidance?
It is guidance rather than a diagnosis. It reflects general patterns — what a slate roof usually requires, what shading usually implies for the electrical design, what a conservation area usually means for consents. Your property may sit outside those patterns. Final suitability, the appropriate system size and the yield you could expect all depend on a site survey and a full design.
I answered "not sure" to several questions. Is that a problem?
Not at all. Roof covering, orientation and shading are all confirmed properly at survey, and conservation area status is checked against the local authority record rather than taken on trust. Answering honestly that you do not know produces more useful guidance than guessing.
Or start from a guide directly
If you already know which of these describes your property, go straight to it.
- Property and roof guideEvery guide by property age, property type, roof covering and orientation.
- TechnologyPanels, inverters, optimisers, batteries, mounting and monitoring, explained individually.
- ServicesInstallation, storage, EV charging and aftercare, with what is included in each.
- Listed buildings and conservation areasWhat consent is likely to be needed, and what tends to be acceptable visually.
- North-facing and shaded roofsWhat shading does to output, and how the electrical design responds to it.
- What happens during a solar surveyThe visit that turns guidance into a design and a fixed written quotation.
Sources
- Solar panels — planning permission — Planning Portal. Accessed 2026-08-23.
- Distributed Generation Connection Guide: G98 for Single Premises — Energy Networks Association. Accessed 2026-08-23.
- Solar photovoltaic (PV) — Consumers — MCS. Accessed 2026-08-23.
Information reviewed on 2026-08-23.
Turn guidance into a design
Send us the postcode and the property and we will confirm coverage, arrange a survey and produce a written design and fixed quotation.