Solar4Good

UK solar workmanship warranties commonly run 5–10 years; panel performance warranties 25 years; inverter warranties 5–12 years. Ask Solar4Good specifically what's covered, who underwrites it, and what happens if they go out of business (an MCS Insurance Backed Guarantee — IBG — covers this scenario).

Review volume is limited at present. Ask Solar4Good for two or three customer references from their last 6 months of work; reputable installers will provide them. A small review count isn't disqualifying for a newer firm, but you should expect to see recent project photos.

SEG registration is usually handled by your electricity supplier rather than your installer, but Solar4Good should provide the MCS certificate and inverter performance data your supplier will request. Ask Solar4Good whether they walk customers through the SEG paperwork as part of handover.

Many Greater London-based installers cover a 20–40 mile radius from their base. Solar4Good's exact catchment isn't published on EnergyRanked — ask directly. Distance affects scheduling and travel charges; an installer 90 minutes from your property may quote more for the same work than one 20 minutes away.

London gets enough annual sunlight for a typical 4 kW domestic system to produce roughly 3,200–3,800 kWh/year. Payback periods are typically 8–11 years at current electricity prices. Ask Solar4Good for site-specific yield modelling based on your roof orientation, pitch and shading.