COVID-19 NOTICE. Updated 01/06/2020

We are open as usual.
Underfloor Heating: All goods are being sent out on a next working day service however there may be delays with Parcelforce during these unprecedented times. We are still operating as normal and we can answer any questions by phone or email
Solar Maintenance: We have restarted Engineers visits for both domestic and commercial properties. Our team strictly following social distancing and follow the Governments guidelines for working in people’s homes. Due to the recent good weather, appointments are in demand and will be booked on a first come, first served basis Please contact us ASAP to avoid disappointment.

Solar PV Inverter Repair & Maintenance Service

The solar inverter is the hardest working part of any solar system and therefore the most likely to fail. Rayotec can repair or replace solar inverters with a minimum of fuss. Newer inverters often come with long warranties of 10 years giving you peace of mind.

Signs that your inverter is not working

If your FIT meter is showing that you are generating no energy or far less than normal then it could be because it your inverter has failed.
Error messages on the inverter or warning light also give vital clues that something is wrong.

Solar Inverter repair
It is important that a PV engineer visits and tests the system and identify exactly what the problem is. Many of the problems we encounter while inspecting solar systems are fixed within an hour and are covered by the callout fee. 

Common Brands of inverters

We can work with nearly all brands of inverter but we are most familiar with Fronius, Mastervolt, Aurora, SolarEdge, Steca, Kaco, SMA Sunnyboy, Solis, Growatt, ABB, Afore, Goodwee, Eversola, Chint, Solax.

COVID-19 Update - During these uncertain times it more important than ever to look after your electric system. We are operating as normal however appointments will be on a first come, first serve basis. We ask you to maintain a 2m distance from our engineers to follow Government guidance.

Free assessment
We give a free phone or e mail assessment for every new customer. Often by asking a few questions we can fault find & give advice which allows the customer to get the system up and running themselves at no cost. We will only arrange for a chargeable engineers visit if it's absolutely necessary. 

Contact Us Now

For Advice or to Book an Engineer


Our Services

Our experienced engineers will conduct a thorough investigation, not just of the inverter but of your whole system to pinpoint where the problem is and get it resolved as quickly as possible. Sometimes the inverter just can't be fixed. If this is the case & the  inverter is still within it's manufacturers warranty, we will ensure that all the necessary details are available for you to claim back directly from the manufacturers.  If the warranty has expired then we can assess your solar PV system using a Solar Design Program which calculates the best replacement inverter for you by reviewing all kinds of factors including the location of your home and the number and positioning of your panels.  

Why Choose Rayotec

  • Family Company: We are a family company established 30 years ago who care about our customers and employees
  • No Hidden Charges: Transparent Pricing - Each visit includes up to an hours labour which is long enough to fix many common problems.
  • Repair not replace: One of the few solar companies to be trained to repair certain brands of inverters rather than replacing them  
  • Accreditation: We are accredited NICEIC "Approved Contractors", the highest electrical qualifications a company can get. 
  • Experienced: We have installed and serviced thousands of systems over the last 30 years  
  • Great Value: We have local engineers dotted around the South East and group call outs together to lower costs  
  • Trustworthy: Rayotec have been endorsed by "WHICH?" the UK's largest independent consumer organisation


Where We Cover

By having experienced local engineers in a number of areas around the South of England and East Midlands we can provide a top quality, expert service whilst keeping our pricing very competitive.

We cover the Central & Greater London Areas, Surrey, Middlesex, East & West Sussex, Kent, Berkshire, Hertfordshire, Hampshire, Buckinghamshire, Oxfordshire, Northamptonshire, Rutland, Bedfordshire, Leicestershire and Cambridgeshire.

Get in Touch  (Phone or E Mail) 


Customer Reviews

Customer in Reading Posted 08 Nov 2017
A professional experience from my telephone call for help as renewing the solar generation failure by the friendly and informed electrician
Customer in St. Ives Posted 25 Oct 2017
Customer in Seaford Posted 22 Aug 2017
Customer in Sidcup Posted 17 Aug 2017
Very efficient, professional work with knowledgeable answers to questions about solar systems
Customer in Fleet Posted 13 Aug 2017
Very helpful engineer who explained options clearly and did an excellent job. He telephoned before the job analysed the problem and brought the correct equipment which meant that he did not need to go back to acquire spares
Customer in Reading Posted 03 Aug 2017
Dave was friendly, knowledgeable and willing to explain what he was doing. He clearly understands the very advanced electronics in this equipment.
Customer in Tadworth Posted 27 Jul 2017
Great work all went smoothly new changes in no time Clean work no mess Suggestions on long care made How system works informed and old unit removed for recycling Recommend the company
         Which Trusted Traders

Our membership of MCS and RECC only applies to our renewable products