TES Compliance carries out fault finding and repair work on solar panels and battery storage systems for homes, businesses and solar farms across the UK, diagnosing and fixing the issues affecting your system’s performance, safety or output.
When your solar panel system develops a fault, whether that’s reduced output, an inverter error, or a battery storage issue, our engineers carry out a full diagnostic to identify exactly what’s causing the problem. We check panel connections, wiring, inverters, isolators and battery storage components using specialist testing equipment, rather than guessing based on symptoms alone.
The most common faults we find include loose or corroded connections, failing inverters, damaged or degraded panels, and battery storage systems that are no longer holding charge properly. Once we’ve identified the cause, we carry out the repair work needed to get your system back to full performance, replacing individual components where possible rather than the whole system.
If you’re not sure whether your system has a fault or just needs a routine check, our Solar Panel Inspection service covers periodic inspections, drone thermographic surveys and safety checks, and is worth booking before a small issue turns into a bigger repair job.
On completion of any repair, we provide a written summary of the fault found and the work carried out, so you have a record for your own files or to share with your insurer.
Every repair is carried out by NICEIC approved engineers, working to the same standards as our inspection and testing services. You can be confident the work is done to a professional, recognised standard.
We test your system fully before recommending any repair, checking connections, inverters, isolators and battery storage components to identify the actual cause of the fault rather than just treating the symptoms.
Where possible, we repair or replace the specific component causing the fault rather than the whole system, keeping the work proportionate to the problem.
Our engineers diagnose and repair faults across both solar panels and battery storage systems, so you don’t need a separate contractor for each part of your installation.
You receive a written summary of the fault found and the repair work carried out, giving you a record for your own files or to support an insurance claim.
TES Compliance carries out solar panel repairs across the UK, for homeowners, businesses and solar farm operators, with flexible scheduling to get your system back up and running.
A solar panel repair is the fix that follows once a fault has been found, whether that’s through your own observation, a periodic inspection, or a drop in performance you’ve noticed on your system’s monitoring app. Where an inspection identifies and documents a problem, a repair is the hands-on work to put it right.
Most faults start small. A loose connection or a failing bypass diode might only cause a slight drop in output at first, but left alone it can lead to heat build-up, further component damage, or in more serious cases a fire risk. Addressing a fault as soon as it’s found protects both the performance of your system and your investment in it.
Battery storage faults follow a similar pattern. A cell that’s no longer holding charge properly, or a fault in the battery management system, can reduce the amount of stored energy available to you and, if left unresolved, shorten the lifespan of the whole battery unit. Our engineers diagnose these faults using the same specialist testing equipment used across the rest of our electrical work.
Getting a fault repaired promptly also matters for insurance and warranty purposes. A documented repair, carried out by a qualified engineer, gives you a clear record that the issue was dealt with correctly and on time.
If your solar panels have stopped generating power completely, this is usually caused by an inverter fault, a tripped isolator, or a wiring issue rather than the panels themselves. Our engineers can quickly identify what’s stopped your system and get it running again.
If your system is generating noticeably less than it used to, or your monitoring app is showing a sudden drop, it’s usually a sign of a fault rather than normal wear.
An error code or warning light on your inverter is one of the clearest signs something needs attention. Our engineers can diagnose the cause and carry out the repair needed.
Cracked glass, discolouration or visible damage to a panel can affect both its output and its safety, and should be checked and repaired promptly.
If your battery storage system is discharging faster than it should, or not reaching full charge, this usually points to a fault in the battery or its management system.
High winds, hail or heavy snow can damage panel mounting, cabling and connections, even where the damage isn’t obvious from the ground.
No obligation · Fast response
Costs depend on the fault found and the parts or work required, so we always diagnose the issue first before quoting for the repair. Get in touch via our request a quote page for a tailored price.
We aim to respond quickly once a fault is reported, and offer flexible scheduling to get your system back up and running with minimal delay. Timescales depend on the fault and any parts required.
Yes, our engineers diagnose and repair faults across both solar panels and battery storage systems, so you don’t need a separate contractor for each part of your installation.
Our engineers work across a wide range of solar panel and inverter makes and models. Let us know the details of your system when you get in touch and we’ll confirm we can help.
In the rare cases where a component can’t be repaired, we’ll explain your options clearly, including replacement, so you can make an informed decision. We’ll always aim to repair rather than replace wherever possible.
If you already know your system has a fault, we can go straight to diagnosing and repairing it. If you’re not sure whether there’s a problem, our Solar Panel Inspection service is a good starting point.
Don’t leave compliance to chance. Our fully qualified engineers are ready to assess, certify and protect your property, whether commercial or domestic. With coverage across the UK.
No obligation · Fast response
