What can one say, it's a great company, top sales people and staff, very polite and not pushy. We bought a 28 panel system, 2 x 5kw invertors and a 13.5 kw battery, The installation went very smoothly and the installers where the best, very friendly and polite . To sum this up we have a great system, running full ducted for nothing and getting paid from the grid . Get in while the subsidy is still there, you won't regret it . 10/10 for this company ....

Thankyou so much Cool or Cosy for installing our battery.Best thing we ever did.Bills have gone from approx $1,000 per quart to $38. We highly recommend this company, again thankyou.

I have written to Cool or Cosy and thanked them for the job they did installing my battery system and I have no hesitation in repeating my thanks in the public domain. Professional, helpful, courteous and a far cry from the experience I have had with too many other companies. Thanks again to all those involved.

I would have no hesitation in recommending Cool or Cosy. The whole process has been so effortless from the start. The team that installed my system were very professional and did a fantastic job.

From EOI to install was quick, easy, and informative ! Can not recommend this company enough... and I do! To anyone who will listen.
My bills have gone from over $2000 to under $400 in 8 months! What is not to love! ?

We have had our solar panels for nearly a year and although we were promised we would have either a very small power bill or none at all our power bill has been just the same. There was so much trouble with the installation and they had to come back twice because it just wasn't working and I was blatantly lied to about what the problem was and it was going to cost another $2000 to fix it. Fortunately I got advice from someone else and found it was actually a problem they had caused but wouldn't admit to and that I could fix it myself for a quarter of the cost. Very unhappy with their customer service, their installation and their lies and blatant over-pricing. I would never deal with them again.

the sonnen battery is not worth the money you pay for it had it for 6 months and it has not saved me any money my power bills are still over 6 hundred dollars at first said my solar was facing the wrong way had 4 panells changed to face the right way but still no savings i have 20 panells 16 facing east and 4 facing west with 5kw converter and 12kw battery still no saving battery cost over $18000do not recommend to by battery and definately not recomend cool and cosy installer if it was explained to by rep that came to my house that my solar was not efficinate to cope with battery so what a waste if i could get it taken away i would today

Every member of the Cool or Cosy team we have dealt with have given exceptional service. Every step of our process has been fantastic. Highly recommend this company to everyone.

We had our Solar System installed by Cool or Cosy. They had also done our insulation a few years prior. Around 6 years later we got a big power bill, and dicovered our inverter had failed. Cool or Cosy came out the next day, and 2 days later a new inverter was installed. Lucky we didnt use a fly by night company. Great SA company that has been around forever, a warranty is worthless if the company has gone.

My husband and I had a Solar and Battery system installed by Cool or Cosy recently. The salesman was great (Lionel) and very knowledgeable and lovely. The system was installed very promptly and the installers were great. Answered more questions and very neat and tidy.
All working now and we can see the money we are saving already. The monitoring portal is easy and last week we were 88% self reliant for our power!

Good product, but our experience is that you won't receive any customer service from this company. Had to follow up the company many times to get an install booked (should have been a warning sign) and now trying to book a service call, and they won't even return our call! Should have purchased from another company.

I am so disappointed with this company it is the worst service I have ever received for anything I have ever bought. It is now 5 months after we have had the panels installed and we are still waiting for it to be turn.

Have been ripped off paid a deposit and bank foreclosed on me. This rip off company will not refund my deposit.