Power Your Life

Battery Storage Solutions

Power Your Life

Commercial PV Solutions

Power Your Life

Design a Complete Energy Solution

Power Your Life

Customised HVAC Solutions

Solar, Air Conditioning & Electrical Solutions

Simmark’s use of best practices makes them the leading multi-service contractor in the Shoalhaven, Illawarra, and the Southern Highlands. Our team of experienced & qualified local tradesmen provide a complete range of professional services. The different facets of our business include air conditioning, electrical, solar & batteries, data & communications, security installations and hot water services.

We have been in business for over 25 years and believe our unique combination of expert workmanship and friendly service make our technicians the best in the local area. With fully staffed offices in Nowra and Bowral, we have a wide service area that covers the Illawarra, Shoalhaven and Southern Highlands. Just some of the towns we regularly visit include Nowra, Bowral, Kiama, Kangaroo Valley, Mittagong, Moss Vale, BerryUlladulla.

Latest News


Kris looks after our air-conditioning service and we cannot praise this young man enough.

He is totally dedicated, doesn’t waste his time, not even time for a cup of tea! My husband and I believe Kris is credit to your company.


I want to say that myself and Vanessa have been extremely happy that we chose to get our solar installed by Simmark. All your staff have been very professional, polite and it’s been a pleasure dealing with Simmark. We based our decision to go with Simmark because of the good reviews online and you have lived up to your reputation. I’ve been recommending you to my in-laws for getting a solar system installed on their property.

Peter & Vanessa C

I wanted to say how much I appreciated your professionalism when sorting out where to fit the aircon. You were more than helpful and prompt with emails during the initial quotation period and the young men who fitted the aircon were polite and business like in fitting the system.
So thank you very much.

Janet M