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.

Solar Thermal Maintenance & RepairSolar Thermal Maintenance, Repair & Servicing Which? Trusted Trader

In and around Greater London and the Home Counties

Now Which? Trusted Traders
Maintenance & Repairs conducted by Qualified Solar Thermal Hot Water Engineers
Rayotec repair and maintain solar hot water systems of all sizes ranging from single panel domestic systems to commercial systems on schools, universities, hospitals and apartment blocks.   We look after the thousands of systems that we have installed over last 30 years as well as systems installed by other companies. Our aim is to give a professional service at a competitive price.

Why Choose Rayotec

  • Experienced: We have installed and serviced thousands of solar thermal systems over the last 30 years
  • Great Value: We used employed engineers rather than subcontractors to lower costs             
  • Trustworthy: Rayotec have been endorsed by "WHICH?" the UK's largest independent consumer organisation

Fault Finding & Repair Service
Sometimes, regardless of the care you take, things can go wrong with your solar thermal system. In these situations you can get in touch with us knowing that, with our local offices in the South East and our wealth of experience and knowledge of solar thermal hot water systems we will be able to get to you quickly to locate the problem and resolve it so that your system is back up and running as swiftly as possible.
Solar Heating Engineer
Common problems we deal with:
  • Faulty pumps
  • Control unit and sensors failing
  • Air locks / blockages with the pipework
  • Leaking components ( pipework, expansion vessels)
  • Leaking hot water cylinders
  • Storm damage
  • Loss of pressure 

Maintaining your Solar Thermal System

Health Checks for Solar Thermal Hot Water Systems

Solar hot water systems are reasonably low maintenance but is still important to give your system the care that it deserves to keep it working smoothly and efficiently to ensure you an abundant supply of hot water for your home. It is important that you give your solar thermal system an occasional inspection yourself to check for any obvious issues, and arrange regular check ups to  ensure that your system continues to work at its maximum efficiency and getting you the most out of your investment.

Health Check & Antifreeze Change

All solar hot water systems use antifreeze as it's heat exchange liquid to protect it from freezing in the colder months. This liquid degrades over time and should be changed every few years so we recommend a Full Health Check every four years to review the system and check the quality of the liquid to ensure it is working as it should to protect your panels from low temperatures in the winter. During our 4 yearly assessment we will:

  • Solar Hot Water Servicing & MaintenanceInspect the solar array for any damage or material failure (if access is available otherwise from ground level visual assessment)
  • Inspect any visual pipework and insulation
  • Check the performance of all system valves and controls
  • Check the circulation of the system
  • Test the quality of the anti-freeze liquid
  • Drain down and dispose of old fluid where necessary
  • Supply new anti-freeze and recommission where necessary


Taking care of your Solar Thermal System

Keep Them Clean. The variability of The Great British Weather is such that dirt and dust are not likely to build up on your solar panels, making them pretty much self-cleaning, but it is worth keeping an eye just to make sure that there is no build up of grime that can reduce the effectiveness of the panels. 

Look out for Over Hanging Trees. Keep an eye out for any infringing greenery that has sprouted up and may be overshadowing your roof and blocking the precious sunlight from your panels. (Make sure that you check with the necessary authority before you start lopping down trees!).

Cast an occasional eye over the system. Every now and again do a quick visual check to make sure there are no obvious faults. That there are no leaks around the joints (antifreeze has a distinctive pungent smell), that the pressure is as it should be, the fan comes on when it is supposed to, there are no obvious cracks or damage etc.

Get Regular Health Checks. Just like your car, your Solar Hot Water System needs a regular check-up to make sure that the system is operating as it should. Our experienced and efficient team of engineers are familiar not only with the systems that we have installed ourselves but also a whole  range of different Solar Thermal Systems and will use their knowledge and expertise ensure your solar energy system continues to provide you with plenty hot water, and ensure you enjoy all the long term benefits of a properly functioning solar energy system for many years to come.

Keep reading to find out more about Rayotec and our Services: It's good to know that your solar energy system is working efficiently to provide your home with plenty of hot water. Periodic inspections and regular maintenance will ensure that your solar energy system is kept in top working order for many years to come. Rayotec Ltd have been operating for 3 decades in the Renewable Energies Industry. Our experienced team of  engineers are fully qualified to assess your solar heating system and keep it running smoothly. As well as maintaining the systems installed by ourselves, our expertise extends to other systems to.

Experienced - As a family business with 30 years in working in Solar Energy under our belts you can rest assured that we have the knowledge and expertise to check your system thoroughly and efficiently. As Which? Trusted traders we ensure that the work we do is of the highest quality and that our customers get the exceptional service that we are known for. 

Great Value - As a well established business we are able to group our calls geographically and with every call including up to 1 full hour of labour we are able to offer the highest level of service at the best possible price.

Local - Based in the South East of London we are in the perfect place to offer expert, local advice and servicing to the Greater London Area and the Home Counties

Find out about our Maintenance and repair packages for Solar Thermal Hot WaterFor more information on our Solar Hot Water Maintenance & Repair Services or to get a tailored quote call 01932 784848 or click the button on the left to get in touch through our on-line messaging service


Reviews - What our Customers Say...

"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