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.

Maintenance and Repair of Solar PV & Solar Thermal Systems

A Local Company Covering the South East and Greater London

NICEIC Approved and now we are proud to be Which? Trusted Traders
Rayotec have been trusted for repairing  and maintaining domestic and commercial  systems  for nearly 30 years.  We look after the thousands of systems that we have installed as well as systems installed by other companies. Our aim is to give a professional service at a competitive price.

Why Choose Rayotec
  • WhichFree Assessment and Fault Finding: Free telephone or email assessment and fault finding. Particularly with pv solar systems, in many cases we give advice over the phone that allows customers to get their system up and running themselves at no cost.
  • No Hidden Charges: Transparent Pricing - If a visit is required then it includes up to an hours labour which is long enough to fix many common problems.
  • 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 

COVID-19 Update - During these uncertain times it more important than ever to look after your solar hot water or 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.

Contact Us Now

For Advice or to Book an Engineer


Free AssessmentWe give a free telephone or e mail assessment for every new customer. With pv systems, often by asking a few questions we can fault find and 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. (With solar heating systems, a chargeable engineers visit is nearly always required.)

Reasons to Choose Rayotec:
Rayotec Service Team

Family Run Business, Operating for 3 decades, Which? Trusted Traders -  Rayotec Limited is a family run business now in its second generation. Established in 1987, we have been operating in the renewable energies industry and have installed and serviced thousands of domestic and commercial Solar Hot Water and Solar PV systems throughout the UK.  Also, as Which? Trusted Traders, we underwent a thorough assessment of all our business processes and procedures and a review of our financial health to ensure that our customers interests are put first.

Great Value

Cost Effective, Grouped Calls, Up to 1 Hour of Labour Included With Every Call-Out, Efficient Resolution of Faults -  As a long established company  we are able to 'group' service calls geographically, allowing us to offer you a high level of service at the best possible price.  We offer cost effective maintenance and repair services for all our own systems and also for Solar PV and Solar Thermal Systems installed by other companies. All of our call outs include up to 1 hour of labour and most problems are resolved within the hour. Whether it's a commercial or a domestic system, our experienced team of engineers can conduct simple services from a quick check to a full in-depth work up to ensure that every aspect of your Solar Energy System is functioning efficiently and effectively to give you clean energy and save you money.


Close to Home, Quick Response -  Rayotec is based in the South East of England and offers expert, local advice and servicing for all Solar Energy and Solar Thermal systems at very competitive prices throughout the Home Counties. We cover Surrey, Sussex, Hampshire, Middlesex, Berkshire, Kent and Greater London.

Common Issues

With our wide range of experience we can answer all your questions regarding your solar energy system. However, the most common requests we get, in addition to calls for routine services, are regarding:

  • Poor performanceMaintenance and Repair services for Solar PV Panels
  • Failure of components
  • Storm damage
  • Repairs through insurance claims
  • Re-positioning of panels
  • Change of antifreeze for solar hot water

Get in Touch (Phone or E mail)

Which? Trusted Trader

We are very proud to announce our new status as Which? Trusted Traders. A quarter of all business who apply, fail to pass the rigorous checks conducted by Which? so we are very pleased to be counted amongst this elite group of traders

To find out more about our Solar PV Panel and Inverter Maintenance, Repair and Fault Finding Services from our Expert Team of Engineers - Just Click Here
Solar Thermal Hot Water Maintenence & Repair
To find out more about our Solar Hot Water System Fault Finding, Repair and Maintenance Services from our Expert Team of Engineers - Just Click Here


Customer Reviews

J Hubbard Posted 13 Aug 2019
Excellent company to deal with and very honest
R. Douetil - Rayotec Customer Posted 22 May 2019
I have recently had my solar heating system serviced by Rayotec Ltd., on phoning an appointment was soon made and as I work during the week was scheduled for a Saturday. An engineer phoned on the Saturday morning to announce he had finished his previous appointment and would be with me within 10 minutes. The engineer was polite and extremely knowledgeable , the service was completed without fuss antifreeze replaced and system reset.
Due to an unrelated issue , a power surge in my electrical system, I had to call Rayotec again, who made an immediate appointment for the Saturday, and attended to replace the solar control panel, the new unit was explained in full by the engineer before leaving, and the system is now running very well.
My point of contact at Rayotec was Perry Viner who was courteous at all times and did everything that could be expected to accommodate my requests for a Saturday appointment. I can whole heartily recommend Rayotec Ltd.,when it comes to Servicing or installing Solar powered systems.
Guildford Customer from Checkatrade Posted 18 May 2018
“Arrived as arranged , careful worker, sorted problem and fitted new inverter.”
Woodbridge Customer from Checkatrade Posted 13 May 2018
“Prompt, courteous and intelligent service. Removed all rubbish. Couldn't have asked for more.”
Reading Customer from Checkatrade Posted 12 Apr 2018
- Installation of a new electric inverter
“Rayotec were very helpful and professional. They identified the correct replacement. The installation engineer was excellent.”
Guildford Customer from Checkatrade Posted 09 Jan 2018
- Check system and supply and fit new inverter.
“Carried out to my satisfaction very well. Very pleased with all aspects of work from initial contact with Rayotec to job completion.”
Rayotec Customer, Crowthorne. Posted 11 Sep 2017
Their time keeping was very good, they rang before they came and were very tidy. I am pleased with the work
N. Allen, Maintenance and Services Manager Posted 25 Jul 2017
Mina and the team at Rayotec are a pleasure to deal with. Any communications are always handled politely and promptly and they are always on hand to offer unbiased advice on various systems with emphasis on customer care. I would recommend Rayotec for any solar needs, be it installation or maintenance
P Manley Posted 01 Apr 2017
Rayotec installed our Solar PV system so when the inverter failed, typically only months after the manufacturer's warranty expired, I contacted them about a replacement. I spoke with Reza who gave me two options with prices and when I had made my decision Reza kept me informed of progress of the order and the install date. The wait time for installation was only one week and good communication was maintained throughout this period. Dave came to install the new inverter and he was excellent. He was punctual, very efficient with a high level of expertise, very helpful and always polite - a credit to Rayotec. When Dave identified a further problem with my panel array, caused by nesting Jackdaws between the panels and the roof, he was again very knowledgeable and helpful in recommending a pest control company who could resolve the problem. I am very happy with the service I received from the Rayotec Team and cannot recommend them highly enough.
D. Bowles, Estates Manager Posted 21 Feb 2017
Rayotec have been working with us for several years, helping us to continue our aim on reducing our carbon footprint by using Rayotec solar thermal system to heat our hot water requirements. This coupled with Rayotecs after sales service, providing peace of mind for our ongoing maintenance requirements
         Which Trusted Traders

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