Endorsed by Which?

Tethys Energy Ltd

5.0

55 Reviews

Opening Hours
Today -
  • Monday 08:00–17:00
  • Tuesday 08:00–17:00
  • Wednesday 08:00–17:00
  • Thursday 08:00–17:00
  • Friday 08:00–17:00
  • Saturday - Closed
  • Sunday - Closed

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After undergoing rigorous assessment to become endorsed, every Which? Trusted Trader agrees to our Code of Conduct. This gives consumers the reassurance that they have the best possible protection and adds an extra layer of security to ensure best practices and procedures are followed. Which? fully investigates any breaches and will take any necessary action to ensure consumer protection.

About

Incorporated in 2013, Tethys Energy has been providing solar PV and battery storage solutions to home owners and businesses around Berkshire and the local area for a decade.

With extensive experience in the design and installation of these renewable energy systems and EV charging, we are proud to be members of Which? Trusted Traders and strive to provide a first class customer service through bespoke designs to meet our clients needs.

What we do

  • Renewable energy

    • Solar panels
    • Solar Panel Maintenance
    • Solar water heating
  • Cleaning services

    • Solar panel cleaning
  • Electricians

  • Electric Vehicles

    • Electric Vehicle Charging Points
  • More Services

    • solar pv repair
    • ev installer
    • battery installation

Customer reviews

Why you can trust these reviews

All reviews are verified as being genuine and a true customer of this trader.

How can we be so sure?

100% of the reviews we publish have been through our stringent moderation process.

5.0
55 reviews
Customer Service
5.0
Quality
4.9
Value
4.9
Sort by
Excellent service from Tethys
Customer Service
Quality
Value
I contacted Jason at Tethys Energy in May about getting some Solar PV installed as part of my home renovation. He was really easy to work with, professional and responsive throughout. The system is working really well and I'd highly recommend them to anyone looking to get solar too - which everyone should!
Customer Posted on 26/10/2020 , work completed 01/05/2020
The trader replied (on 11/11/2020)
I really appreciate your feedback, thank you very much!
Excellent job, highly recommended.
Customer Service
Quality
Value
We approached Jason at Tethys Energy last year for a quote to put bird prevention netting around our solar panels but at that time we were unable to proceed. He had very promptly quoted and his quote was very competitive, so we kept his details on record. Then this year we needed to proceed as pigeons had started to go underneath our solar panels. We immediately thought of Jason and emailed him, he was able to give us an excellent updated price and was able to fit us in very promptly. He organised everything from scaffolding, doing the job and clearing up. He was very good at informing us at each stage of the job which he and Luke completed very quickly. He went above and beyond his job by replacing some of our roof tiles with spares we had and allowing us to keep the scaffolding a few days longer so the we were able to get more roof tiles replaced and the chimney repointed. I have no hesitation in recommending Jason and Tethys Energy, in fact I have already done so to a friend who has used Jason as well.
Customer in Buckinghamshire Posted on 15/10/2020 , work completed 09/10/2020
The trader replied (on 11/11/2020)
Thank you for the great feedback, I am happy to have helped.
Knowledgeable, reliable, personable installation on a challenging job
Customer Service
Quality
Value
We chose Jason for his calm efficient manner, responsiveness and evident knowledge. This wasn't an easy installation; the building's listed so panels had to go on an outbuilding with cabling to the house causing lots of challenges setting up in a very old building. So we went back and forth for ages with quotes and planning, then getting the job done and Jason was unbelievably patient throughout. Everything happened on time and on budget, and he was great with all the admin follow up afterwards and responsive glitch solving (ones caused by us not him). Definitely recommend.
Customer in Wiltshire Posted on 11/08/2020 , work completed 24/07/2020
The trader replied (on 14/08/2020)
Thank you for the great review. I really enjoyed this project in the grounds of a beautiful heritage home set within the stunning Wiltshire countryside. All the best, Jason
Great work. Solar panels all installed in two days. I would totally recommend Tethys
Customer Service
Quality
Value
Great work. I would totally recommend Tethys to install solar panels. The work was completed very efficiently. Very helpful explained how the system works and I have an app to monitor the daily energy generated.
Customer in West Berkshire Posted on 07/08/2020 , work completed 29/07/2020
The trader replied (on 18/08/2020)
Thank you for the great feedback, it's much appreciated. Jason
Solar PV Installation
Customer Service
Quality
Value
We chose Tethys Energy after talking to three good installers, partly because of good reviews but, on meeting owner Jason Fuller, we felt confident that he would be someone we could trust and work with. He was flexible when discussing the specification of the installation as we were keen to use better quality components.Tethys quotation was very fair and they did exactly as they promised. In spite of appalling weather, the job was completed on time and as specified. We recommend Tethys highly.
Customer in West Berkshire Posted on 20/03/2020 , work completed 20/02/2020
The trader replied (on 26/03/2020)
Thank you for this wonderful review and the recommendation. It is great to hear that customers trust us and find us easy to work with. Jason
Solar panels & battery installation
Customer Service
Quality
Value
Excellent workmanship in fitting and installing 18 solar panels and battery, and fantastic patience with initial consultation regarding makes and models of solar panels and of types of battery. Always turned up on time and gave plenty of notice on dates of installation, plus kept updated on progress of approval of installation from UP Power networks. Very highly recommended.
Customer in Buckinghamshire Posted on 21/09/2019 , work completed 19/09/2019
The trader replied (on 03/12/2019)
Many thanks for the kind review. Jason
All-round quality
Customer Service
Quality
Value
Jason really knows his stuff. He explained the complications of installing solar panels thoroughly and clearly, Preparations for and the carrying out of the installation were immaculate. He was always available to answer queries and prepared to go the extra mile - for instance he found us a buyer for the slates removed from our roof. If there are issues later we are sure that he will provide all the advice he can. If only all traders were like this!
Customer in Buckinghamshire Posted on 06/08/2019 , work completed 05/07/2019
The trader replied (on 03/12/2019)
I really appreciate you taking the time to leave me this review, many thanks. Jason
Installation of solar panels
Customer Service
Quality
Value
Used Jason after hearing about his company from an ex-colleague. Initially, Jason provided me with a quote and was very patient in discussing the figures with me as I was not an expert on the subject. It all looked very good but due to family circumstances we did not go ahead. Jason left us to make our decision in our own time and no pressure was bought on us. When our family issues subsided I contact Jason again and he pulled out the stops to do the installation before the critical date of end of March. All work was carried out in a very professional manner. In fact whilst on the roof, Jason noticed some issues with some of the tiles and fixed them. Also indicated there was more work that would be beneficial to be done whilst there was scaffolding in place. I contacted a roofer who came and fixed the problem. The panels were installed on time with the supporting equipment. Jason then provided support in getting the installation registered. The panels are working and we are very happy. Lastly, Jason provided an insurance policy to protect my deposit and also support in the future should his company cease trading. I have no doubts in recommending Jason.
Customer in Wokingham Posted on 30/03/2019 , work completed 20/03/2019
Professional, reliable, punctual and personal
Customer Service
Quality
Value
Jason Fuller at Tethys Energy really knows his stuff. You can go through sales reps reading from scripts at call centres or else you can call Jason and talk directly to the guy who understands the technology and the admin and who actually does the work, and at a very competitive price, too. He always went the extra mile to make sure everything was exactly right. The installation could not have been done more professionally, and it is now working beautifully. I highly recommend.
Customer in Wiltshire Posted on 27/03/2019 , work completed 21/03/2019
Highly Recommended
Customer Service
Quality
Value
Very good experience. Quotes were very detailed, with clear optional areas. From order to delivery was clearly project time scaled . Installation over 2 days went very smoothly, and system up and running with no problems.
Customer in Hampshire Posted on 17/03/2019 , work completed 13/02/2019