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Solar Panel Repair in Newport

Newport is one of the easiest cities we reach — around 12 miles east of our Cardiff base, roughly 20 minutes along the M4, so repair jobs across the city and wider Gwent get a fast, flexible response. Newport has a dense mix of FiT-era arrays on terraces around Pillgwenlly, Maindee and Stow Hill, GivEnergy battery retrofits on the suburban semis and detached homes of Malpas, Rogerstone and St Julians, and Welsh-scheme installs from the Nest and Arbed years now reaching the age where inverters start to fail.
from £295 free remote diagnostic first · no extra travel charge
  • Served from Cardiff — next-day on-site for urgent faults
  • Every major solar and battery brand
  • Written quote before any work
Book a solar repair in Newport

Tell us what's happening — error codes, display messages, generation drop. We review your monitoring before the visit so the engineer arrives knowing what to expect.

Book a repairDiagnose first — free if we can't fix

What an Amazing service and so helpful . I have had problems with a faulty GivEnergy inverter and Ron has been so diligent in investigating and reporting on it . I’d give him more than 5 stars if I could for his help in diagnosis and potential solution. Thoroughly recommend .

Penny Ribbeck · Jul 2026 Google

What a fantastic service. Had my fault diagnosed within minutes and actually managed to resolve the issue remotely within a few minutes more. This guy is like a “Solar Batman” helping consumers fix their problems using his extensive industry knowledge and expertise. Outstanding service. Thank you so much.

Andrew Palmer · May 2026

Wow... a firmware update to my inverter sent the whole system into meltdown – the battery discharged, and the house seemed to be drawing power, and the solar, who knows where that was going? Aghhh... A short email exchange with Roland and Solar Tech Support sorted the problem... the firmware had reversed a setting (from when it was installed), and the CT clamp needed to be reversed. As soon as I had done that, the world returned to normal. Thanks, Roland; there is no way I would have come to that conclusion. Would I recommend them? You bet! Worth the fee? You bet, again!

Pete Hawkins · Jul 2026 Google

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

This company are a rare gem, I had a very unusual problem following a failed firmware upgrade on my GivEnergy kit. I then found out GivEnergy were in administration and had dismissed all their support staff! None of the usual fixes to try and restore my inverter comms would work, and I looked everywhere, forums, GivEnergy youtube support videos - even AI couldn't figure it out. My installer was talking about huge sums for system replacements, and being vague / evasive about if they'd even install replacement GivEnergy inverter. Enter Solar Tech Support, reassuring and knowledgeable from the very start, I've learnt loads about my solar system though the friendly chat while my engineer worked as he diagnosed the problem and figured out a fix procedure that I've not found anywhere else - amazing. If you need solar system repairs - especially if you like me have been left high and dry by GivEnergy, I cannot recommend this company enough. Give them a call.

Andy Thomas · Apr 2026

I have a GivEnergy system consisting of two batteries, two inverters and a controlling EMS (Energy Management System) which has not worked since Nov 2025. After six months I discovered Solar Tech Support, reached out to them and Ron phoned me back – how often do you get that service? Could not be more helpful – worked directly with me over the phone, outside what I would call normal working hours. Lucid explanations and we were able to discuss the issues and history using camera and email history. As this was a very rare setup, Ron was able to access an EMS expert in the field to confirm the solution. One sunny day in, I am now only paying for standing charge and a few pence for spikes in grid consumption while battery catches up with house demand.

Ian · May 2026
Newport faults

What breaks down on Newport solar systems

Newport's fault mix tracks its housing: the FiT and Welsh-scheme arrays packed onto terraces around the city centre are now old enough for their string inverters to fail, the newer GivEnergy retrofits out in the suburbs mostly go wrong in configuration rather than hardware, and roofs near the Usk and the Severn estuary pick up salt corrosion on top.

Ageing inverters on FiT-era terraces

Pillgwenlly, Maindee, Stow Hill and Ringland carry a heavy concentration of compact 2–4kW arrays fitted in the FiT and Welsh-scheme years of 2011–2016, and the original string inverters — mostly Solis, Growatt, SMA and Aurora units — are past the decade mark. Plenty have already gone dark. Once a unit of that age fails, inverter replacement rather than repair is usually the right call.

GivEnergy configuration and battery faults

The GivEnergy retrofits on Newport's suburban semis — Malpas, Rogerstone, St Julians — generate more of our callouts than any other battery platform. Typically the hardware is fine: the battery is importing from the grid instead of discharging what it stored, the charge schedule no longer matches the household's Octopus or Tomato slots, or the portal dropped offline when the router changed. We fix that class of configuration fault remotely from £95, and attend on-site for the rarer genuine hardware failures. GivEnergy help →

SolarEdge optimiser communication failures

SolarEdge systems are common on larger Newport properties — particularly in Caerleon, Allt-yr-yn, Malpas and Marshfield. Optimiser communication drops are the most frequent fault: individual panels showing no output in the monitoring portal while the rest of the string carries on. Usually caused by a failed optimiser or a loose DC connection at the panel — diagnosed on-site, often the same week.

Estuary salt-air and chimney-shaded terraces

Properties along the River Usk and out toward the Severn estuary and Caldicot levels sit in salt-laden coastal air that corrodes rooftop isolators, MC4 connectors and earthing over time. Inland, the tightly-packed terraces of Pillgwenlly and Maindee suffer chimney and party-wall shading that drags down poorly-strung arrays. We trace corrosion, connector and shading faults and put the array back to full output.

Use the fault finder to describe what you're seeing, or book a free remote diagnostic.

Pricing

Solar repair pricing — Newport

Remote diagnostic
Free

Monitoring review, fault identification, written report. No fix, no fee.

On-site repair
£295–£995

Component swap, wiring fix, isolator replacement, connector refit. Written quote before work starts.

Inverter replacement
From £995

New unit supplied, installed, and commissioned. Newport inverter replacement →

Annual maintenance
From £195

Full system health check with written report. Maintenance details →

All prices include labour. Newport sits in our standard South Wales coverage — no extra travel charge for the short hop from Cardiff. Cost confirmed in writing before any work begins. Full pricing breakdown →

Process

How it works — enquiry to fix

The process is built so the 20-minute trip from Cardiff is never wasted: we diagnose remotely first, and the engineer crosses the Usk already knowing what the fault is.

01
Describe the fault

Give us the raw detail — error codes, display messages, generation figures, how long it's been going on. A photo of the inverter display speeds things up. Use the form below or phone us.

02
Remote diagnostic — free

The remote diagnostic happens before any van leaves Cardiff: monitoring data pulled, generation history reviewed, battery telemetry checked, fault identified. CT-clamp, charge-schedule and export-limit issues are corrected remotely, so many Newport jobs never need a visit at all. Where hardware has failed, the diagnosis tells us exactly what to load for the M4 run.

03
Written quote

You get the cost in writing before anything is booked — labour, parts and commissioning itemised. The diagnostic stays free either way, and the visit only goes in the diary once you've approved the quote.

04
On-site repair

Our engineer drives over from Cardiff — about 20 minutes east on the M4 — with the right parts. Newport is the closest city we cover after Cardiff, so urgent faults get a next-day response. Repair completed, system tested live, monitoring verified, written report provided. If anything needs follow-up, we schedule it before leaving.

Coverage

Every part of Newport — served from Cardiff

Our engineer is based in Cardiff, about 12 miles and 20 minutes west of Newport on the M4 — the closest city we cover after Cardiff itself. Every part of Newport and the surrounding Gwent area is well within easy reach, with no extra travel charge across the Newport postcodes.

Caerleon
Malpas
Bettws
Rogerstone
Pillgwenlly
Maindee
Ringland
Allt-yr-yn
St Julians
Stow Hill
Marshfield
Caldicot

We also cover the wider region across South Wales — Full Newport area guide · Cardiff · Swansea

FAQ

Solar repair in Newport — common questions

Newport is around 12 miles east of our Cardiff base — roughly 20 minutes on the M4, the closest city we cover after Cardiff itself. That means urgent faults usually get a next-day on-site visit, and scheduled repairs within the same week. A free remote diagnostic identifies most faults same-day and tells us exactly what to bring for the on-site visit.
All the major brands. Across Newport and Gwent the callout list is dominated by GivEnergy battery systems and end-of-life string inverters, but SolarEdge, Fronius, Solis, Growatt, Sunsynk, SMA, Enphase, Huawei and Fox ESS all come up regularly too. The van carries diagnostic kit for every platform plus the most common replacement parts. See all brands →
Free remote diagnostic (no fix, no fee). On-site repairs start from £295. Inverter replacement from £995 including installation and commissioning. All costs confirmed in writing before work starts — and Newport sits in our standard South Wales coverage, so there's no extra travel charge for the short hop from Cardiff. Full pricing →
Yes — this is one of the most common reasons Newport homeowners contact us. Several South Wales solar firms have ceased trading since the FiT boom, including Solar Plants Limited of nearby Port Talbot, which entered administration in January 2020 and was dissolved in February 2022. We diagnose and repair systems regardless of who installed them. The manufacturer warranties on your inverter and panels are separate from the installer. Installer gone bust guide →

Solar system not working in Newport? We'll have it sorted this week.

Set out the symptoms — error codes, zero generation, a battery that won't behave, monitoring offline, plus the brand if it's known. You'll usually have a diagnosis and a clear price within a few hours, ahead of a next-day visit from Cardiff.

  • On-site repair from £295 · inverter replacement from £995
  • Written quote before any work starts
  • Free remote diagnostic — pay only if we fix it

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Call 07944 877 329 Book free diagnostic