Battery & inverter health checks
Red lights, error codes, storage that is empty by morning. Our certified engineers test every cell, read the fault log properly and tell you whether it is a repair or a replacement — before you spend anything.
Takes about 60 seconds · MCS-certified engineers · No obligation
Batteries and inverters are the most expensive parts of a solar system and the first to fail. Pick what yours is doing and we will send someone who works on that brand.
Diagnostics
The most expensive parts of your system, and the most likely to fail. Degraded cells and stale firmware quietly halve your storage long before anything turns red.
Health check
High grid voltage, dropping SEG payments, an app insisting everything is fine — plenty of faults only show up when someone puts a meter on the system.
Cleaning
Dust, pollen, moss and bird mess build a film across the glass that light never gets through. It comes off with de-ionised water and a pole — usually from the ground.
Bird proofing
Pigeons nesting under your panels are noisy, filthy and expensive — they strip cable insulation and block the airflow the panels need to stay cool.
The slow leak
Cells drift out of balance, firmware falls behind, and the usable capacity drops a little each year. Nothing on the app turns red — the number simply gets smaller, and you buy the difference back off the grid.
sitting idle every night — a third of the storage you already paid for
Illustrative figures for a degraded 9.5 kWh battery. How much is recoverable depends on cell condition and age — some of it comes back with balancing and firmware, some of it doesn’t. Your health check measures what yours is actually storing.
No guesswork off the app. This is the list your engineer works through, and every line ends up in your report with a measured figure against it.
The number that says whether your battery is still doing its job: what it actually stores today, measured against what you paid for. Cell imbalance and degradation show up here long before an app flags them.
The log read properly rather than guessed at — recurring faults, shutdown events and grid trips.
Out-of-date firmware is one of the commonest causes of poor performance. Updated on the visit.
Whether it fills when it should, holds overnight, and discharges at the rate it is rated for.
Lithium batteries and hot inverters are a real fire risk. DC and AC isolation, breakers, surge protection and earthing continuity all tested, plus ventilation and mounting checked.
Terminal torque, cable condition and connector heat, and confirmation your SEG export is being recorded.
Every kind of roof
Solar array not generating? Feed-in tariff payments dropped off? Pigeons can do real damage to wiring, and dirt and grime steadily eat your efficiency. A health check catches all of it while it’s still cheap to fix.
Terraces, semis, new-builds, listed cottages with slate — the network has engineers who work on all of them, every week.
Sixty seconds on the form — what the system is doing, and your postcode. That’s enough for us to find the right engineer for the job.
A certified engineer surveys the system, finds the actual fault and puts a fixed price in writing. No charge for the survey, no obligation to go ahead.
Say yes and the work goes ahead — most jobs finish on the first visit, with before-and-after readings so you can see what you got back.
About 60 seconds · No obligation
Whatever’s on your roof and in your garage, someone in the network works on it every week.
Also serviced: SMA & Sunny Boy, Fronius, Tesla Powerwall, GivEnergy, Solax, Enphase, Victron, Sofar, Huawei, Samsung SDI and Solis.
My solar panels stopped generating and I was losing my FIT payments. The engineer came out, quickly diagnosed a fault with my Fronius inverter, and had it fixed the next day. Fantastic service and communication throughout.
We had a terrible problem with pigeons nesting under our solar panels. The noise and mess were awful. The team came and fitted the bird protection mesh quickly and professionally. They were tidy and the problem is completely solved. A huge relief!
Booked a general maintenance check for peace of mind. The technician was brilliant — very thorough and professional. He spotted a loose connection that could have become a serious problem. I feel much better knowing the system is safe.
Panels hadn’t been touched in nine years and were filthy. Cleaned from the ground in under two hours, no scaffolding needed, and the app showed the difference by the same afternoon. Genuinely wish I’d got it done years sooner.
Still not sure? Start a survey — it costs nothing and the engineer will tell you straight.
Book your survey
One short form, and a certified engineer near you picks it up. No cost for the survey, and a fixed price before anyone touches the roof.
Takes about 60 seconds · No obligation