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

Simmark is 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 plumbing (Shoalhaven & Illawarra 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 Wollongong, Nowra and Mittagong, we have a wide service area that covers all of the Shoalhaven as well as the Illawarra and Southern Highlands. Just some of the town we regularly visit include Bowral, Moss Vale, Berry, Ulladulla & Kangaroo Valley.

Latest News

Tesla Tiny House is Coming….

Tesla Tiny House is Coming….

The Tesla Tiny House is coming to Wollongong UOW Innovation Campus on Thursday 23rd of August 2018 4pm-7pm and Shellharbour Civic Centre Friday 24th of August 12pm - 5pm.   Come and learn about running a fully sustainable house with solar and battery power at this...

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Join us for a Free Energy Seminar this Spring

Join us for a Free Energy Seminar this Spring

Meet your local Simmark team at two great community events this Spring - Berry Small Farm Field Day 7-8 September and the Home and Garden Show Bowral 15-16th September.  Learn how to take control of your power bills with latest in home solar and battery storage...

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Great Job Team Simmark with our solar power and Tesla battery install. saving $4k PA + the security of backup power whenever there’s a blackout. A fully professional team, prompt support and impressive result.

Mike J.

I contacted Simmark regarding a solar system having been let down by another supplier. It was like chalk and cheese. Upfront service was fast and professional and the work was carried out by many employees all of whom were the most respectful bunch you would wish to have at your home. Our new panels were great but the Tesla powerwall 11 is the bees knees!

Muddy D.

They’ve helped set up many aspects of our farm, and have done a great job! They are always polite and helpful, and they do very neat and thoughtful work. Their pricing is transparent and reasonable. Highly recommended.

James R.