Skip to content
On-site serviceUK-wideAll brands

Solar inverter replacement supply, fit, and commission

We supply, decommission the old unit, install, commission, and document a replacement inverter. All major brands. Like-for-like or upgrade to hybrid for battery and EPS compatibility. Written quote before any work starts.
£795 · cost confirmed before work begins
  • All major inverter brands
  • DNO G99 variation included
  • Post-installation report provided
Book inverter replacement

Not certain the inverter is faulty? Start with a free remote diagnostic (no fix, no fee) — the cost is credited to the replacement if you proceed with us.

Book replacementDiagnose first — free if we can't fix
Written quote before any work begins
All brands: GivEnergy, SolarEdge, SMA, Sunsynk, Growatt, Solis, and more
DNO G99 variation included
Post-installation report provided
5.0
13 Trustpilot reviews
Trustpilot Google

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 Trustpilot

When my GivEnergy system had an issue, I was completely left without support and had honestly lost all hope. Thankfully, I searched online and found Ron, which completely turned things around. After sending him a message, he responded incredibly fast and called me to assure me that he would get the problem fixed. I really admire his dedicated, supportive nature and his determination to find a solution. With this kind of outstanding attitude and customer service, he has absolutely secured a future customer in me.

Sree · May 2026 Trustpilot

Ron want out of is way to help, nothing was to much. He was very thorough in what he did Very knowledgeable I would highly recommend Ron and his company He did a fantastic job for me. if you have any problems, he'll do his best to help you out and resolve your problem. I wouldn't hesitate to recommend them

Dennis Brown · May 2026 Trustpilot

Ron took me through a diagnostic to confirm my GivEnergy Inverter had a fault. A common one as it turns out with the AC Inverter. As GivEnergy is defunct there is no immediate fix, aside from sourcing 2nd hand replacement. It may be that a fix becomes available over the summer which would make a lot of GivEnergy customers happy (Again)

Tony Deacon · May 2026 Trustpilot

Contacted Ron with a problem and he sorted it out quickly with no problems at all. Very knowledgeable on anything solar/ batteries. I would recommend him to anyone

Phill · May 2026 Trustpilot

I've spoken to Ron a couple of times with issues with my Givenergy installation. Such a friendly knowledge guy very highly recommended. Thank you very much for resolving my issues

michael fairhurst · May 2026 Trustpilot

Contacted Solar Tech Support in desperation. After explaining the issues I had with my system a diagnosis was made and a solution proposed. Fantastic service, even contacted a manufacturer to arrange replacement parts for me. Great communications, explained all they were doing and what I had to do, clearly and precisly. Followed up to confirm all was ok. Excellent service.

Mr Machin · May 2026 Trustpilot

After GivEnergy went into liquidation, just my luck, my battery started playing up (internal board crashed). Contacted my installer - not interested! Found Solar tech support on a Google search. Sooo glad I found this company! Ron is extremely helpful and has plenty of experience. He soon confirmed what the fault was, and helped me to get my system up and running again. Now moved my GivEnergy account to Solar tech support, and will definitely use again if I have more issues. Unusual to find such a helpful company in these times, no morons reading scripts, just direct contact with the engineer.

Keith Ballard · Apr 2026 Trustpilot

Contacted Solar Tech Support when trying to understand what my Givenergy inverter problem might be and what might be my options. Received good/honest advise which backed up my thoughts.

Hugh Speirs · Apr 2026 Trustpilot

Ron is a super star. Two months ago my GivEnergy battery failed a firmware upgrade leaving it a brick. My installer couldn't/wouldn't fix it. GivEnergy couldn't/wouldn't fix it. Then they went into administration and all hope was lost. A flurry of emails later and Ron had diagnosed the fault (failed USB flash drive, something I'd suspected) and talked me through resolving it. Two months of nothing resolved in about 3 hours. It's great to work with someone who pays attention to the details, knows that they're doing (not just following a script) and gets stuff sorted without a fuss or up-charging.

Christopher · Apr 2026 Trustpilot

I can add to the list of customers who had already 'given up' on GivEnergy due to their appalling customer service, and that was before they went into administration (their Trustpilot reviews don't lie!). So you can imagine my desperation when, having changed my ISP and my Inverter, predictably, proving to be the only device that didn't connect automatically to my new network, I found zero prospect of any customer support with GivEnergy having called in the administrators just five days earlier! The salvation came from Solar Tech Support. My IT advisor stumbled across their web site and some very helpful tips for beleaguered GivEnergy customers, as well as an offer to provide direct assistance. Nothing ventured, I decided to drop them an E-Mail, with very low expectations based on my experience of GivEnergy customer support. Within an hour Ron had responded with some pin point advice, and after a few exchanges of E-Mails he had nailed the problem, enabling the combined efforts of my IT advisor and solar installer to resolve it and reconnect my Inverter. Thank you Solar Tech Support, and Ron in particular, for coming to the aid of a deserted and despondent GivEnergy customer. Expert, razor sharp advice and first class customer service, even though I wasn't officially a customer.

customer · Apr 2026 Trustpilot

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 Trustpilot

I sent a message on their website regarding a problem I have on my Givenergy system. Although not supplied by Ronald, I thought it was worth an email. Within the hour on a Saturday, he phoned and we discussed the problem. He logged in remotely and gave excellent advice. I'm too far away for his on-site help but he did diagnose the problem and was happy also to chat through my thoughts about an upcoming solar/battery install I'm planning. Great bloke.... if only he was nearer!

Philip · Apr 2026 Trustpilot

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 Trustpilot

When my GivEnergy system had an issue, I was completely left without support and had honestly lost all hope. Thankfully, I searched online and found Ron, which completely turned things around. After sending him a message, he responded incredibly fast and called me to assure me that he would get the problem fixed. I really admire his dedicated, supportive nature and his determination to find a solution. With this kind of outstanding attitude and customer service, he has absolutely secured a future customer in me.

Sree · May 2026 Trustpilot

Ron want out of is way to help, nothing was to much. He was very thorough in what he did Very knowledgeable I would highly recommend Ron and his company He did a fantastic job for me. if you have any problems, he'll do his best to help you out and resolve your problem. I wouldn't hesitate to recommend them

Dennis Brown · May 2026 Trustpilot

Ron took me through a diagnostic to confirm my GivEnergy Inverter had a fault. A common one as it turns out with the AC Inverter. As GivEnergy is defunct there is no immediate fix, aside from sourcing 2nd hand replacement. It may be that a fix becomes available over the summer which would make a lot of GivEnergy customers happy (Again)

Tony Deacon · May 2026 Trustpilot

Contacted Ron with a problem and he sorted it out quickly with no problems at all. Very knowledgeable on anything solar/ batteries. I would recommend him to anyone

Phill · May 2026 Trustpilot

I've spoken to Ron a couple of times with issues with my Givenergy installation. Such a friendly knowledge guy very highly recommended. Thank you very much for resolving my issues

michael fairhurst · May 2026 Trustpilot

Contacted Solar Tech Support in desperation. After explaining the issues I had with my system a diagnosis was made and a solution proposed. Fantastic service, even contacted a manufacturer to arrange replacement parts for me. Great communications, explained all they were doing and what I had to do, clearly and precisly. Followed up to confirm all was ok. Excellent service.

Mr Machin · May 2026 Trustpilot

After GivEnergy went into liquidation, just my luck, my battery started playing up (internal board crashed). Contacted my installer - not interested! Found Solar tech support on a Google search. Sooo glad I found this company! Ron is extremely helpful and has plenty of experience. He soon confirmed what the fault was, and helped me to get my system up and running again. Now moved my GivEnergy account to Solar tech support, and will definitely use again if I have more issues. Unusual to find such a helpful company in these times, no morons reading scripts, just direct contact with the engineer.

Keith Ballard · Apr 2026 Trustpilot

Contacted Solar Tech Support when trying to understand what my Givenergy inverter problem might be and what might be my options. Received good/honest advise which backed up my thoughts.

Hugh Speirs · Apr 2026 Trustpilot

Ron is a super star. Two months ago my GivEnergy battery failed a firmware upgrade leaving it a brick. My installer couldn't/wouldn't fix it. GivEnergy couldn't/wouldn't fix it. Then they went into administration and all hope was lost. A flurry of emails later and Ron had diagnosed the fault (failed USB flash drive, something I'd suspected) and talked me through resolving it. Two months of nothing resolved in about 3 hours. It's great to work with someone who pays attention to the details, knows that they're doing (not just following a script) and gets stuff sorted without a fuss or up-charging.

Christopher · Apr 2026 Trustpilot

I can add to the list of customers who had already 'given up' on GivEnergy due to their appalling customer service, and that was before they went into administration (their Trustpilot reviews don't lie!). So you can imagine my desperation when, having changed my ISP and my Inverter, predictably, proving to be the only device that didn't connect automatically to my new network, I found zero prospect of any customer support with GivEnergy having called in the administrators just five days earlier! The salvation came from Solar Tech Support. My IT advisor stumbled across their web site and some very helpful tips for beleaguered GivEnergy customers, as well as an offer to provide direct assistance. Nothing ventured, I decided to drop them an E-Mail, with very low expectations based on my experience of GivEnergy customer support. Within an hour Ron had responded with some pin point advice, and after a few exchanges of E-Mails he had nailed the problem, enabling the combined efforts of my IT advisor and solar installer to resolve it and reconnect my Inverter. Thank you Solar Tech Support, and Ron in particular, for coming to the aid of a deserted and despondent GivEnergy customer. Expert, razor sharp advice and first class customer service, even though I wasn't officially a customer.

customer · Apr 2026 Trustpilot

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 Trustpilot

I sent a message on their website regarding a problem I have on my Givenergy system. Although not supplied by Ronald, I thought it was worth an email. Within the hour on a Saturday, he phoned and we discussed the problem. He logged in remotely and gave excellent advice. I'm too far away for his on-site help but he did diagnose the problem and was happy also to chat through my thoughts about an upcoming solar/battery install I'm planning. Great bloke.... if only he was nearer!

Philip · Apr 2026 Trustpilot

Replacement pricing

String inverter
£795

Single-phase, 2–6 kW. Like-for-like or current generation equivalent.

Hybrid inverter
From £995

Upgrade to hybrid for battery and EPS compatibility. CT clamp check included.

Three-phase / large
From £1,200

8 kW+ and three-phase units. Assessed individually.

Commercial inverter
From £1,995

Commercial three-phase string and central inverters — SMA, Huawei, Solis, SolarEdge, GoodWe. See commercial emergency repair.

Hardware and labour quoted separately. All costs confirmed in writing before work starts.

What's included
Old unit decommission and removal

Safe isolation of DC strings, AC supply, and battery (if present). Disconnection and removal of the old inverter. Responsible disposal — we take it away. All connection points documented before disconnection.

New unit supply and installation

Replacement inverter supplied and sourced from authorised distributors. Mounted, earthed, DC strings reconnected with polarity verified. AC connection made including new MCB/RCBO if required. All connections to manufacturer specification.

Commissioning and configuration

Commissioned to UK G99 parameters. Export limit set. Monitoring account created or migrated from old serial number. Battery parameters configured (timed charge windows, SOC, tariff schedule) if applicable. EPS re-enabled if previously active.

DNO G99 variation

G99 variation form submitted to your DNO on your behalf. Covers the change of generation equipment. Includes reference number in post-installation report. No extra charge — included in the service.

Testing

Full generation test on-site. Battery charge/discharge test if applicable. EPS function test if EPS circuit present. System confirmed operational before engineer leaves site.

Post-installation report

Written report documenting: new inverter model and serial number, configuration settings, test results, monitoring portal details, and DNO notification reference. Keeps a permanent record for warranty, insurance, and future reference.

What is not included by default: If upgrading to a hybrid inverter and adding a battery at the same time, the battery hardware and connection are a separate line item quoted alongside the inverter replacement. EPS circuit wiring (if not previously installed) is also quoted separately — see the EPS installation guide. Everything is itemised in the written quote before work begins.

Inverter brands we replace

String inverters (like-for-like replacement)

SMA Sunny Boy, Fronius Symo, Solis, Solax, Huawei SUN2000 (standard), SolarEdge (standard), Growatt ShineWay, Enphase IQ (microinverter), ABB, Kostal. If your brand is not listed, contact us — we cover all UK brands.

Hybrid inverters (upgrade options)

GivEnergy AIO, Sunsynk Hybrid, Growatt SPH/SPA, SolaX Hybrid G4, Fox ESS H1/H3, Lux Power LXP, Sigenergy SigenStor, AlphaESS, Huawei SUN2000 + LUNA battery. We recommend options based on your DC array, battery goals, and budget.

How an inverter replacement works — step by step

1
Enquiry and assessment

Submit details of your system (inverter brand, model, fault description, panel count). If any uncertainty about whether the inverter is truly faulty, we carry out a remote diagnostic first. We confirm the correct replacement specification and provide a written quote covering all costs.

2
Written quote and approval

You receive a written quote before any work begins. It covers: replacement unit cost (hardware), installation labour, commissioning, DNO G99 variation, and any additional components. Once you approve the quote, we order the hardware and schedule the installation date.

3
On-site installation day (4–6 hours)

Engineer arrives on the agreed date. Old inverter safely disconnected and removed. New inverter mounted, all connections made to specification. Commissioned to UK G99 parameters. Monitoring portal configured. Battery reconnected and configured if applicable. Full test carried out before sign-off.

4
Documentation and DNO notification

Post-installation report provided with all settings, test results, and new inverter details. G99 variation form submitted to your DNO — you receive the reference number in the report. You leave with a complete record of the replacement and a system that's fully documented for insurance and future reference.

Combine replacement with a battery upgrade

If your current inverter is a string model (no battery capability), replacing it with a hybrid model opens the door to battery storage in the same job or as a follow-on. This is often the most cost-effective approach — one scaffold hire, one electrical installation, one DNO application.

We can quote the inverter replacement and battery installation together as a package, or separately if you want to phase the investment. Both jobs are assessed and quoted in writing before any commitment.

On-site inverter replacement across Yorkshire & beyond

We carry out inverter replacements on-site across a wide coverage area from our Yorkshire base — including Leeds, Bradford, Wakefield, Harrogate, York, Sheffield, Huddersfield, Doncaster, Hull, Barnsley, Scunthorpe, Grimsby, Mansfield, Derby, Nottingham, Manchester, Darlington, and Middlesbrough.

See all areas we cover →

FAQ

Inverter replacement — common questions

String inverter replacement (supply, fit, commission) £795. Hybrid inverter (upgrade option) from £995. Three-phase and larger residential units from £1,200. Commercial three-phase inverter replacement from £1,995 — we work with all major commercial brands including SMA, Huawei, Solis, SolarEdge, and GoodWe. See commercial emergency repair for more detail. All costs include decommissioning the old unit, DNO G99 variation, monitoring setup, and post-installation report. Hardware and labour are quoted separately. All costs confirmed in writing before work begins — no surprises.
Not always. If your inverter has clearly failed (physical damage, manufacturer confirmed replacement needed, documented fault code with no resolution path), we can proceed directly to replacement. If there is uncertainty about whether the inverter is at fault or whether repair is viable, a free remote diagnostic is worth doing first — it prevents ordering an unnecessary replacement. The diagnostic fee is credited against the replacement.
All major UK brands: GivEnergy, SolarEdge, SMA, Fronius, Sunsynk, Growatt, Solis, Huawei, SolaX, Fox ESS, Enphase, Lux Power, Sigenergy, AlphaESS, Victron, and more. We replace like-for-like or can recommend a current equivalent or upgraded hybrid model based on your goals.
Yes. If replacing with a hybrid model, we can supply and install a compatible battery in the same visit or as a planned follow-on job. Combining the work in one visit saves on labour and scaffold costs. Both the inverter and battery are quoted separately in writing before any commitment.
No. Inverter replacement is not a planning matter in England, Scotland, or Wales for standard domestic installations. A G99 variation form to your DNO is required — we handle this as part of the service. Listed buildings or properties in conservation areas should check with their local authority, though in most cases inverter replacement is unaffected by heritage restrictions.
Yes — we travel to all areas of the UK for inverter replacement work. A mileage supplement may apply for locations far from our base in Yorkshire. Contact us to confirm availability and lead times for your area. Remote diagnostics are available nationwide immediately.
Book

Book inverter replacement

Tell us about your system and we'll confirm the right replacement specification, provide a written quote, and schedule an installation date. All costs confirmed before work starts.

  • Written quote before work begins — £795
  • All major brands — string and hybrid
  • UK-wide coverage

By submitting you agree to be contacted about your diagnostic request. We don't share your data with 3rd parties.

Call 07944 877 329 Book free diagnostic