Our offices are now closed for the festive period and open on January 3rd. However, you can still place your orders online and take advantage of the 2016 prices on all Christmas orders taken during this period. Orders will be despatched for delivery on the 4th and 5th of January.

Maintenance and Repair of Solar PV & Solar Thermal SystemsWhich? Trusted Trader

In and around London and the Home Counties

NICEIC Approved and now we are proud to be Which? Trusted Traders

Speak to our expertsIt is great to know that your solar energy system is working at its best efficiency to provide you with energy or hot water and maximising your Feed In Tariff. Regular health checks will help keep your system in tip top condition to ensure you get the most from of your system.

Expert Solar Panel Maintenance & Repairs


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 for nearly 3 decades 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 ValueGreat Value Solar Panel Maintenance and Servicing

Cost Effective, Grouped Calls, Up to 1 Hour of Labour, 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.

Great Service for Solar Panel Repair & Maintenance Close to Home


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 the Greater London area, Hertfordshire, Buckinghamshire, Middlesex, Surrey, Sussex, Hampshire, Berkshire and Kent.

Find out more about our Solar Panel Maintenance Service

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 performance
  • Failure of components
  • Storm damage
  • Repairs through insurance claims
  • Re-positioning of panels
  • Change of antifreeze for solar hot water
If you have any questions about any of the above services or should you wish to arrange a routine 'check-up' for your system send us an email through our 'contact us' page or give us a call on 01932 784848. For more information on our specific services keep on reading.

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

Solar PV Repair & Maintenance

One of the great things about Solar PV is that it doesn’t have a lot of moving parts and so they don't require a huge amount of work to keep them in good working order. Solar panels generally have a warranty of around 25 years with invertors having a warranty of around 5 years for older models and most newer ones up to 10 years. The solar panels on your home don't even need that much cleaning, unless you live in a particularly dusty area or have inconveniently situated bird perches above your panels, we have sufficient rain in this country for the panels to keep themselves pretty clean..

However, if you look after your Solar PV system with regular services you can ensure that you are getting the maximum efficiency and power from your Solar panels, with all the benefits that brings, and make sure that your Solar PV system has a long and happy life, providing you with lots of clean energy and saving you money.

We offer a number of different Solar PV maintenance packages depending on your requirements as well as more in depth fault-finding and repair services.          

Fitter on roof
Comprehensive Service / Health Check

Every now and again we recommend a thorough work-up of your whole PV system, a deep clean to keep everything working at its top efficiency. In addition to doing all the standard checks and controls our engineers will also

  1. Check the invertor for error messages
  2. Check the functional operation switches
  3. Do a complete shut-down test of the invertor
  4. Do a full test and inspection on the AC side of system
  5. Remove the fan housing and clean the fan unit 
  6. Carry out a system performance check

For more information on our services for Solar PV or for a tailored quote please give us a call on 01932 78 48 48 or contact us through our online messaging service

Solar Thermal Hot Water Repair & Maintenance

Solar Thermal Maintenance
There is nothing worse than not having hot water. Regular 'check-ups' of your Solar Hot Water system will help protect it against the damages of hard water corrosion and ensure that you are kept supplied with plenty of steaming water. You can keep an eye out yourself for fluid leaks (antifreeze has a very strong smell) and keep a check on the pressure (every month or so) to make sure it's still within the manufacturers recommended range however a regular once over will make sure that every aspect of the system is kept in full working order for many years to come. 

4 Yearly Service/Antifreeze change

  1. Inspect the solar array for any damage or material failure (if access is available otherwise from ground level visual assessment)
  2. Inspect any visible pipework and insulation
  3. Check the performance of all system valves and controls
  4. Check the circulation of system
  5. Test the quality of anti-freeze fluid
  6. Drain down and dispose of old fluid where necessary
  7. Supply new anti-freeze and re-commission where necessary

Reviews - What our Customers say....

 "Their time keeping was very good, they rang before they came and were very tidy. I am pleased with the work"                                                                                                                                                                                                   - Anonymous, Crowthorne.

"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"                                                                                                                                                                                                                    - N. Allen, Maintenance and Services Manager.

"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."                                                                                                                                                                                                                    - D. Bowles, Estates Manager.                                       

         Which Trusted Traders

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