• About Us
  • Solar PV Repairs 
  • Solar Thermal Repair 
  • Electric Underfloor Heating

About Us

Rayotec Ltd is a family run business based in Sunbury-On-Thames, in Middlesex. With over 3 decades of experience in the field of renewable energies & underfloor heating. Established in 1987, we are a MCS government accredited company and have won multiple awards for our contribution to the industry.

At Rayotec we understand that it is difficult to decide which company is the most trustworthy and technically able which is why we have joined the “Which Trusted Traders” scheme. It gives our customers peace of mind and it has also given us the confidence that what we are doing is right. 

Solar Repair

Electric Underfloor Heating

Rayotec Office

Solar PV Repair & Maintenance

Even though solar PV systems are generally very reliable sometimes things do go wrong. If your system stops generating energy or doesn't seem to be generating as much as it used to, one of our expert engineers can come and assess system, identify the problem and resolve any issue quickly and efficiently to ensure that your Solar PV System is back to full working order as quickly as possible. All of our call outs include up to 1 hour of labour and often we can resolve any problems within this period.

Common issues with Solar PV systems:

  • Faulty parts including inverters
  • Damage by pests such as pigeons
  • Storm damage
  • Reduction in electricity generation
  • Loose electrical connections


Solar Thermal

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 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
  • Panels being removed and reinstalled due to reroofing


Electric Underfloor Heating

Rayotec Ltd has a range of underfloor heating kits suitable for under tiles, carpet, wood, vinyl and amtico floor coverings. The friendly team at Rayotec will advise you throughout your project answering any technical queries and tell you exactly which underfloor heating system is best for you.

The Rayotec systems are extremely competitively priced and if you order before 1pm, orders will be with you next working day.

Whether you are doing a refurbishment, renovation, extension or new build, electric underfloor heating is an effective solution to heat your home. Running costs are also kept to a minimum by the element being installed directly under the flooring and with the digital programmable thermostat provided, the system will only switch on when the room is calling for heat.