Cahill Corporation Ltd T/A as Cahill Electrical and Cahill Renewables

It’s been five months since my solar and battery installation, and everything has been working exactly as expected. From the initial call with Josh to the office team, the surveyor, the scaffolders, roofers and electricians, every single person I dealt with was professional and accommodating. Minor hiccups were addressed effectively. The quote was well presented and looked professional. Cahill offered me the best hardware for my needs (high-efficiency AIKO panels and a Tesla Powerwall 3) at a reasonable price. The sales team were responsive throughout the process, answering my technical questions promptly. Antony, the surveyor, took the time to understand my requirements and reassured me about the installation, confirming the optimal number of solar panels to maximise my roof space. At that point, I knew I could trust Cahill to deliver, and I was happy to proceed. Scaffolding was up within two hours and held firm during several days of strong winds. On installation day, the team arrived on time, which was excellent. The lead electrician deserves special thanks for coordinating the team and completing the underground ducting neatly despite the challenges. The roofers installed the solar panels efficiently and were happy to answer my questions. Before leaving, the team walked me through the Tesla app, and the system was fully operational. I was able to start saving immediately by reducing my reliance on the grid. Exporting excess solar and battery energy required permission from the DNO and my energy supplier, along with some help from Tesla support, and Cahill assisted with all of this post‑installation. What set Cahill apart was their willingness to go the extra mile — nothing was too much trouble. Choosing a reputable installer isn’t easy, but Cahill delivered a compliant, high‑quality installation without cutting corners. I’m very happy with the system and would confidently recommend Cahill Renewables to friends and family.

From first contact to completion of install Cahill have been a pleasure to work with. I'm happy to support a local business that provides quality workmanship and at a competitive price. Thorough explanations were provided at quoting and after installation. Highly recommend this team if you're looking for anything electrical or sustainable energy related

I must say what a pleasure it has been to do business with such a friendly and helpful company. Josh, you have been brilliant and very helpful explaining the ins and outs of how the system works and making sure that we have the best system that meets our needs. Ross our surveyor was also helpful, friendly and very knowledgeable. The ladies in the office were friendly and extremely efficient. Even James your delivery guy was friendly. And finally Jim our engineer. What an: Amazing, conscientious, happy, helpful and knowledgeable young man he is. Nothing was too much trouble and his work was exemplary. So neat and tidy and not a scrap of mess left behind. He explained everything to my husband Brian and I, went through the app with us and went well beyond what we would expect from him. So thank you all for making this a pleasurable and exciting experience. We will have no hesitation in recommending Cahill Renewables.

Cahill installed our solar system in November 2024. I contacted them yesterday with a oroblem with the Fox app and Morgan took on the job of sorting it out. After 24 hours he had sorted out everything and the system is now working perfectly. Highly recommended, very professional.

I am leaving this review on be half of my Mum, from our experience with a Employee of Cahill Renewables. Sadly, my Dad and Sister died within 11 weeks of each other, which left a huge problem with getting everything over to my 87 year old Mum's name, as the whole solar panel system was in my Dad and Sisters name. So my Mum could inherit the system, the Fit company wanted certain information that sadly, as my Sister was not the best paperwork keeper. OVO suggested that we contacted Cahill to see if they could help with gaining the info OVO required. I spoke to and absolutely wonderful young man called Joshua Ells. Even though we are not Cahill customers, Josh was so helpful, giving me some amazing advice regarding the solar panel system my Mum has, was so patient with me as I don't know much about solar panels. Josh's advice was so valuable, that within a couple of days we had sorted everything out that has been going on for over 6 months. Josh, thank you so much for your time and patients, you are an absolute credit to Cahill Renewables. If this is the way Cahill employees treat someone who is not a Cahill customer, I can only begin to imagine the amazing service Cahill provide for their existing customers. Thanks again Josh, Paul