Solar Panel Repair in Sussex

Standard call-out costs £90, including up to one hour on site for diagnosis. The £90 is refunded against the cost of any repair work that proceeds. Inverter replacement runs £800–£1,500 fully fitted for a typical 4kW residential system. Panel replacements run £200–£450 per panel including labour. Major rewire or consumer unit work £500–£2,000+. We quote firm prices before starting any work.

Some inverter faults can be diagnosed from monitoring data we can access remotely (with your permission). Most fault diagnosis requires an on-site visit because we need to physically test cabling, isolators, panels and DC connections. We do not give blind quotes over the phone — too often the headline symptom (e.g. “zero generation”) has multiple possible causes and getting the diagnosis wrong wastes your money. The £90 call-out gives you a clear, fixed-price quote with no commitment to proceed.

Yes. We regularly take on systems where the original installer has stopped trading. The MCS database and the panel/inverter manufacturer warranty still operate even if the installer is gone — we can manage warranty claims directly with the manufacturer on your behalf. We will also take over MCS records and SEG paperwork if needed.

Most residential solar panel installations in Sussex are completed within a single day. For larger systems, or where battery storage is being installed at the same time, the work may extend to two days. We coordinate all scaffolding, panel installation, electrical connections, and system commissioning as part of the service.

Solar panels generate electricity from daylight, not just direct sunshine, so they continue producing energy even when the sky is overcast. Output on a heavily cloudy day will naturally be lower than on a bright, clear day, but your panels will still contribute useful electricity. Solar performance varies seasonally — your panels will always produce less in November than in June. But if your monitoring shows a sudden drop in output (compared to the previous year at the same time, or vs neighbouring panels on the same array), that’s a fault signal. We see this most often after storms, after roof work, or when birds have nested under the array.

Today’s solar panels are built to last. Most come with a 25-year performance warranty from the manufacturer, and in practice many systems continue operating efficiently for 30 years or more. Inverters typically carry a 10–12 year warranty and may need to be replaced once during the overall lifetime of your system. Beyond that, solar panels require very little maintenance.

The Smart Export Guarantee is a government-backed scheme that pays you for any surplus solar electricity you export to the national grid. Your energy supplier pays you a rate per kilowatt-hour for the energy you do not use yourself. Current rates typically range from 4p to 15p per kWh depending on the supplier and tariff you choose. While the income is modest, it provides a useful additional financial return on your solar investment.

In 2026 conditions, almost always yes. A 4kW solar system in Sussex generates around £550–£700 of electricity value per year. A failed inverter (£800–£1,500 to replace) pays for itself in 1.5–2 years of restored generation. A single failed panel out of 10 (£200–£450 to replace) pays back even faster. The only common scenario where repair does not make sense is if the system is 20+ years old, has multiple compounding failures, and would be cheaper to replace entirely — we will tell you honestly when that is the case.

Yes, adding a battery at a later date is entirely straightforward. When we install a solar PV system, we design the electrical setup with future battery integration in mind, so upgrading is a simple process when the time comes. Many of our customers in Sussex choose to install panels first and add storage once they have seen the benefits and saved some additional funds.

We understand that solar panels represent a significant investment, and we can discuss flexible payment options to help make the cost more manageable. Please get in touch with us to find out about current finance arrangements available to Sussex homeowners.

The ideal system size depends on your household electricity consumption, the amount of suitable roof space you have, and your budget. As a general guide, a 3–4kW system is typically appropriate for smaller households of one to three people, while households of four or more people usually benefit from a 5–6kW system or larger. We determine the right system size for you during our free site survey, using your actual energy data to ensure an accurate recommendation.

Getting started is easy. Call us on 01273 455 695 or complete our online enquiry form to arrange a free, no-obligation site survey. We will visit your Sussex property, assess your roof and energy usage, talk through the options, and provide a personalised quote — all completely free of charge.