My Givenergy system went offline, so I lost control of it. Ron from STS and Craig from Norfolk Solar were most helpful in diagnosing the problem by phone. Full marks for their patience and ability.
Tony Jackson · Jul 2026 Google
Independent · Engineer-led · UK-wide
Solar diagnostic & repair services
We fix solar PV and battery storage systems. Remote or on-site, all major brands, transparent pricing. Start with a diagnostic if you're not sure what's wrong — we'll tell you exactly what it will take to fix it.
- Remote or on-site — all major brands
- Transparent pricing — cost confirmed before work
- Independent, engineer-led · UK-wide
Not sure where to start?
Start with a remote diagnostic. We review your system data and identify the fault — then advise on the best next step. No callout charge, no obligation to proceed.
Book your free remote diagnosticView pricingRon dealt with a battery issue within an hour on a weekend remotely. Very clear instructions to fix the issue worked first time. Excellent service.
Si Whaley · Aug 2026 Google
Ronald at Solar Tech Support was very quick and knowledgeable in helping me restart my GivEnergy solar electric battery. I would highly recommend his services.
Thomas Croke · Aug 2026 Google
Very speedy response. Handled by a real human who took my system through a logical process with the desired outcome within minutes of them accessing my inverter settings. Ron passed me on to Ash, they are both ex-Givenergy people who clearly know their stuff and can give the reassurance of proper technical support now that the Givenergy support desk has closed. A worthwhile investment in ensuring my expensive kit is kept fully functioning.
Paul · Jul 2026 Google
I had a red status light on my GivEnergy battery pack and Ron at Solar Tech Support was a great help resolving the problem. He was able to do a remote diagnosis of the invertor BMS firmware and hardware and gave very quick practical and professional support. Thanks Rob
Rob Heminsley · Jul 2026 Google
Excellent service from Solar Tech Support. Extremely quick to respond, easy to deal with and clearly very talented engineers. They were persistent throughout a complex GivEnergy battery issue and resolved everything completely. Highly knowledgeable, professional and reassuring support from start to finish. Highly recommended.
David Harris · May 2026 Trustpilot
Diagnostic & repair
Remote
Free
Remote solar diagnostic
Fault identified in 30 minutes. Written report, settings validation, clear next steps. No call-out charge.
View service →
On-site
From £295
Solar system repair
On-site diagnosis and repair for all fault types. Cost confirmed before work begins. Most repairs from £295, typically up to £495.
View service →
Same-day
From £395
Emergency solar repair
Same-day response for urgent faults, system failures, and safety-critical alarms. Call before noon.
View service →
Remote diagnostic · free
Health check · £145
Most repairs · from £295, typically up to £495
Inverter replacement · from £995 to £1,495
Emergency callout · from £395
Specialist services
Annual maintenance visit · from £195
On-site inspection of panels, cabling, inverter, and battery. Electrical safety checks, settings audit, and written maintenance report. All brands.
System recovery
For systems with multiple or cascading faults — where a single repair isn't the right approach. Full diagnostic, prioritised fault resolution, recovery plan.
Independent solar inspection
Pre- or post-purchase inspection report. Suitable for solicitors, surveyors, and buyers of properties with an existing solar or battery installation.
Warranty claim support
An independent engineer's report to support a manufacturer or installer warranty claim. Evidence-based, clearly written, accepted by most manufacturers.
Monitoring account transfer
Transfer monitoring access from a previous owner or installer to your own account. All major brands except GivEnergy, which the owner does in the app. Common after house purchases and installer closures.
On-site WiFi setup
On site for every brand, from £195. We connect your dongle or logger to your WiFi, set up your router, including a separate 2.4 GHz network if it needs one, and check it's reporting. If the signal doesn't reach, a WiFi extender is an extra £75, and we carry them with us.
Solar system health check
Full remote health check — generation performance analysis, battery health, settings audit, firmware review, and monitoring verification. Written report with priority actions within 24 hours.
DNO export application support
G98 notification and G99 approval paperwork support. For new installations, system upgrades, and cases where the original application was filed incorrectly. Fixed fee £95.
Post-install snag inspection
Independent inspection after your installer has left. We check physical quality, settings, documentation, and cosmetic finish — then give you a written snagging report. From £295.
Installer technical support B2B
Technical overflow for active installers dealing with a complex fault or needing a reliable aftercare partner. Engineer-to-engineer. Fixed fee £95.
Inverter replacement
End-of-life or failed inverter? We supply and fit replacement inverters for all major brands — diagnosis, sourcing, install, and commissioning in one service. From £995.
Independent system design
Independent solar design before you commit to an installer — aerial-imagery layout, OpenSolar yield model, and a written spec you can tender to any installer. Fixed fee £245.
Quote sense check
Written review of an installer's solar quote — equipment SKUs verified, ROI sanity-checked, pricing benchmarked against trade. Red flags identified before you sign. £95 per quote.
Solar remove & reinstall
Re-roofing or roof repairs? We remove, store, and reinstall your solar system, then recommission it against a pre-removal baseline. Roofer coordination included. From £1,495.
Solar decommission & removal
Permanent end-of-life removal — DNO de-registration, panel removal, FIT/SEG paperwork, and WEEE recycling with a completion certificate. From £995.
Commercial solar O&M B2B
Independent operations and maintenance for commercial solar PV. Annual inspection from £10/kWp/annum, real-time fault monitoring, emergency repair, system takeover, and independent audits.
We do not handle GivEnergy account transfers, because the owner can do them in the app. Read the GivEnergy transfer guide.
Not sure what's wrong?
Use the fault finder to describe your symptoms and get pointed to the right starting point — whether that's a remote diagnostic, a specific problem page, or an emergency callout.
Solar fault finderReady to book?
Tell us what you're seeing — fault codes, lights, what the system is doing. We'll review it and come back with the right service and a proposed time.
Book a diagnostic or repairFrequently asked
Start with the free remote diagnostic if you're not sure what's wrong: we review your system data, identify the fault, and tell you exactly what it will take to fix it. If the fault is already confirmed and needs an engineer, book solar system repair; for urgent failures and safety-critical alarms, use the same-day emergency repair service. Specialist jobs such as inspections, monitoring account transfers, warranty claims and paperwork each have a dedicated service listed above.
The remote diagnostic is free, on a no-fix-no-fee basis. On-site repair starts from £295, same-day emergency callouts are from £395, and a full remote health check is £145. Every price is confirmed in writing before any work begins, so there are no surprise invoices.
Remote diagnostics are typically carried out the same or next day, and most faults are identified within a 30-minute session. For urgent faults and safety-critical alarms, the emergency repair service offers same-day response when you call before noon. On-site repair visits are then scheduled once the fault is confirmed, so you only book an engineer when the fix is known.
Yes in most cases: STS is independent, engineer-led and works across all major inverter and battery brands. Remote diagnostics and health checks are available UK-wide. On-site visits cover a wide area from our Yorkshire base, with South Wales served from Cardiff; see the areas page for the full coverage list.
Get started
Not sure which service you need?
Describe what’s happening and we’ll point you to the right starting point — or just book a remote diagnostic and we’ll work it out together.
- Free remote diagnostic — covers most faults · no fix, no fee
- Written report included with every session
- No fix, no fee covers remote fixes. On-site work is quoted in writing before we start.
Service notice
We’re busier than ever. Thank you for your patience.
Due to unprecedented demand we’re currently only carrying out on-site work in Yorkshire, and replies are taking up to 7 days. Remote diagnostics continue for the whole UK as normal.
Every message is read and answered, so please don’t send it twice; that only slows the queue.
Ronald Director, Solar Tech Support
On-site: Yorkshire only, for now
Remote: UK-wide, as usual
Remote fix: £125 if we fix it, no charge if we don’t
Replies: within 7 days
We use cookies to measure traffic and ads, sharing limited hashed data with Meta and Google. Decline keeps only essential cookies. Privacy policy
STS Solar Tech Support
Usually replies within minutes
Hi there!
Got a solar fault or need a quick answer? Drop us a message and we usually reply within a few minutes. Mon–Fri, 9am–7pm.
Start WhatsApp Chat
Got a solar fault or need a quick answer? Drop us a message and we usually reply within a few minutes. Mon–Fri, 9am–7pm.
End-to-end encrypted