Solar Panel Repair near you

Two hazards sit on top of each other. The first is the roof: reaching an array means working at height on a surface that may be brittle, wet or steep, and the fittings themselves are slippery. The second is that the direct current side of a photovoltaic system is energised by light rather than by a switch. Isolating the inverter does not de-energise the array or its wiring in daylight, which is why the DC side is specialist work rather than something to poke at with the mains off.

The fire picture has sharpened. The Building Safety Regulator published research by OFR Consultants on 13 February 2026 on thermal exposure to roofs from fires involving photovoltaic panels. Its finding is structural rather than alarmist: a PV installation creates semi-enclosed spaces between the roof and the panel that trap heat and redirect flames towards the roof surface, with heat fluxes beneath arrays reaching up to 50 kW per square metre against the 12.5 kW per square metre used in standard roof testing, and flame spread under critical conditions accelerating by a factor of 38 compared with a roof with no PV.

For a homeowner the practical reading is not that arrays are dangerous. It is that the space under the array is part of the system, that debris, nesting material and damaged cabling in that cavity matter more than they look like they should, and that an inspection which only reads the inverter display has not looked at the part the research is about.

MCS - the Microgeneration Certification Scheme - certifies both products and installers for small-scale renewables. The installation standard for solar PV is MIS 3002, and the version current on the review date is 6.0, issued on 18 March 2026. An MCS certificate is issued to the consumer after a certified installer has installed certified products, and MCS says consumers should receive it within 10 working days of completion.

MCS certification is not a legal requirement for installing solar panels. It is a commercial one, because it is the gate to the incentives. That distinction is the thing to hold on to when a repair is being arranged: nothing about a straightforward repair is unlawful if done by a competent electrician who is not MCS registered, but the certificate attached to your installation was issued on the basis of a certified installation, and substantial changes are worth discussing with an MCS certified contractor before they happen rather than after.

The practical rule of thumb is proportionate. Replacing a failed isolator, resealing a penetration or clearing a cavity is maintenance. Replacing the inverter with a different model, adding panels, or reconfiguring strings changes the installation that was certified, and if your export arrangements depend on that certificate it is worth asking the question first. Keep the original certificate, the handover pack and the maintenance guide together - MCS says the handover pack should include a maintenance guide covering common inverter signals and basic troubleshooting.

The Smart Export Guarantee is the mechanism that pays you for electricity you export, and Ofgem's rules define who has to offer it. A licensed electricity supplier with at least 150,000 domestic electricity customers as at 31 December is a Mandatory SEG Licensee, must offer SEG payments to eligible generators and cannot opt out; smaller suppliers may join voluntarily. All licensed suppliers must notify Ofgem by 14 February each year, and the SEG year runs from 1 April to 31 March. Any tariff rate offered must always be above zero, and payments are calculated from export meter readings.

Two things follow when something breaks. First, if payments stop but generation looks normal, suspect the metering or the tariff arrangement before suspecting the array - SEG payments come from export meter readings, so a meter exchange or a supplier switch can interrupt them while the panels carry on working perfectly. Second, because eligibility is tied to certification, a repair that changes the certified installation is a conversation to have with your supplier as well as your installer.

Keep the paper trail. The MCS certificate, the export meter arrangement and the SEG contract with your supplier are three separate records, and a repair that touches the first can affect the third. Before authorising anything beyond straightforward maintenance, ask the installer in writing what happens to the certificate.

The inverter is the component most likely to end a system's quiet life, and MCS says as much to consumers: panels can last over 25 years while the inverter may need replacing during that time. It is the part with electrolytic capacitors, cooling fans and firmware, and it lives in a loft or a garage where summer temperatures are not kind to any of those.

Repair makes sense where the fault is a discrete, serviceable item and the unit is still supported - a fan, a fuse, a communications board, a firmware fault. Replacement makes more sense when the unit is out of support, when spares are no longer made, or when the repair cost approaches a new unit that would also be more efficient and would monitor better. The hidden factor is compatibility: a replacement inverter has to suit the existing string configuration and voltages, and choosing one that also supports a future battery avoids paying for the same job twice.

Panels are different. An individual panel can be replaced, but matching it to the rest of a string matters electrically, and an array installed years ago may use a module no longer in production. That sometimes makes replacing a string, or accepting a slightly mismatched module with the consequences understood, the better answer. Ask the installer to explain the string implications rather than just quoting for a panel.

Access dominates. Getting safely onto the roof - scaffold, tower, or a mobile platform on a difficult approach - is frequently a larger line than the component. Roof pitch, height, the state of the tiles and whether a neighbour's land is needed for the scaffold all move it. After access, the variables are whether the fault has been diagnosed before the visit or is being found on the day, whether a replacement inverter is a like-for-like swap or a reconfiguration, whether panels are still available in the original specification, and whether the visit also has to address roof penetrations. Bundling a repair with a full inspection while access is paid for is usually better value than two visits.

LokalMatch handles introductions only. Describe the system and the symptoms once, with your postcode, and installers covering your area make contact themselves. There is no fee for homeowners - the pros are the ones who pay for enquiries. LokalMatch does not repair anything, does not set or influence prices, and does not vet, rank or recommend the firms that reply to you.