Southern Highlands & Shoalhaven Air Conditioning, Solar & Batteries, Electrical & More

Simmark is the leading multi-service contractor in the Shoalhaven 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 plumbing (Shoalhaven only).

We have been in business for over 22 years and believe our unique combination of expert workmanship and friendly service make our technicians the best in the local area. With bases in both Nowra and Mittagong, we have a wide service area that covers all of the Shoalhaven as well as the Southern Highlands. Just some of the town we regularly visit include Bowral, Moss Vale, Berry, Ulladulla & Kangaroo Valley.

Tesla Powerwall Certified Installer

Latest News

Tiny House in the News

Tiny House in the News

Simmark’s upcoming Tesla Tiny House events this week made news headlines as interest grows ahead of our two upcoming events.We are delighted to announce that Solar Passive Design Expert Andy Lemann from “The Greeny Flat” will be joining us to talk...

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Blog

HOW MUCH STORAGE DO I NEED?

HOW MUCH STORAGE DO I NEED?

Many customers ask us about battery sizes and how much storage is right for them. The key is to determine how much energy you are consuming when the sun isn’t shining. That will tell you how much battery capacity you need, which will in turn determine how much...

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