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 Hot Water Maintenance & Repair

Now Which? Trusted Traders
Solar hot water systems are reasonably low maintenance, but it 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.

Why Choose Rayotec
Repair & Maintenance of Solar PV Panels - Which? Trusted Traders
  • 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 keep prices low             
  • Trustworthy: Rayotec have been endorsed by "WHICH?" the UK's largest independent consumer organisation
  • Free Advice: Whether we installed your system or not, We will always give free advice by phone or email if you have any concerns about your solar thermal system.

Rayotec repair and maintain solar hot water systems of all sizes.  Whether you have a small single panel domestic system on your home or a large scale commercial system, we offer the highest quality service at incredible value, with transparent pricing - No hidden costs.   
For commercial jobs we cover most of England. For domestic call outs we cover the South East and London including: Surrey, Sussex, Hampshire, Middlesex, Berkshire, Kent and Greater London.

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


Rayotec TeamOur Services:

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.

Common problems we deal with:
  • Faulty pumpsSolar Heating Engineer
  • 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
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

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.

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 ke eping 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.

Rayotec Ltd

Rayotec is a  family run business. With over 30 years of experience 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. We have installed thousands of system throughout the South of England and as a well established business we are able to group our calls geographically in order to keep your costs low, 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. Added to that, as we are b ased 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. To find out more about Rayotec click here...

Customer Reviews

Checkatrade Customer in West Byfleet Posted 08 Apr 2019
Service and Repressurise Solar Thermal System.

“I cannot fault the standard of service from this company. In my first telephone enquiry, all of the options were clearly explained and once I had made my decision I was contacted the following day to arrange an engineer visit. The engineer arrived on the day and at the time promised, and carried out the required work efficiently and professionally. He then explained the work he had carried out. I cannot recommend this company highly enough.”
Checkatrade Customer in Lutterworth Posted 08 May 2018
Repairs to solar equipment.

“Good, efficient service.”
Checkatrade Customer in Weybridge Posted 17 Jan 2018
Overhaul and maintenance of solar water heating system.

“Very professional and customer friendly.”
Checkatrade Customer in Leatherhead Posted 16 Jan 2018
Service heating panels. Change fluid.

“On time, efficient, no mess, very pleasant.”
Customer in Farnborough Posted 29 Nov 2017
Kept fully informed on engineers eta. Job completed as described. Engineer very polite and helpful.
D Bowles, Estates Manager Posted 20 Sep 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.
Repeat Customer, Harrow Posted 09 Aug 2017
I had a solar water heater panel serviced. I have dealt with this company on more than one occasion and all jobs have gone well. I have already recommended them to others
Customer in Rickmansworth Posted 31 Mar 2017
Very good, friendly man and as far as I can tell the work was done efficiently and well.
Customer in Maidenhead Posted 07 Nov 2016
Very helpful, very prompt and efficient
Customer in Crowthorne Posted 07 Nov 2016
Their time keeping was very good, they rang before they came and were very tidy. I am very pleased with the work
Customer in Littlehampton Posted 01 Nov 2016
The work was carried out satisfactorily but a leak developed in the pump and this was mended at a later date
Customer in Haslemere Posted 24 Oct 2016
I was very impressed. They were efficient and professional I could not fault them
Anonymous Posted 04 Oct 2016
Rayotec Ltd replaced a faulty pump on this customers solar thermal system. "They are brilliant! 10 out of 10"
Customer in Harrow Posted 30 Aug 2016
Dealt with this company on more than once occasion and all jobs have gone well. I have already recommended to others
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