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Simmark Shoalhaven

Simmark Shoalhaven

5.0(132 reviews)See reviews ↓·Nowra

About the company

Simmark Shoalhaven is a solar panel installer based in Nowra. Simmark was established in 1997 and is family-run, having operated for over 28 years. It was founded by Mark Simms and is run by Matt Simms, son of founder Mark Simms. Simmark operates three branches, located in Nowra, Bowral and Kiama, and serves the Shoalhaven, Illawarra and Southern Highlands regions. It has served over 22,000 customers.

Simmark's team includes battery-certified technicians, Level 2 electricians, accredited solar installers, and licensed AC installers. Simmark is a Daikin Specialist Dealer and a Tesla Certified Installer. It uses Tier 1 panels and inverters for solar installations and conducts a site visit before every quote. Its main services include air conditioning, solar, electrical, EV chargers, and heat pump hot water.

What customers say

Based on genuine customer reviews

In Nowra and the surrounding Shoalhaven district, Simmark has built a reputation through solar panel and battery installations, air conditioning work, off-grid power systems and ongoing maintenance. A number of reviews mention the professionalism of the installation crews, with named staff such as Beau, Tom, Jake, Luka, Joel and Ace singled out for their knowledge and courteous manner.

One thing mentioned again and again is the care taken to explain each stage of the work, from the initial quoting and system sizing through to the finishing details. A handful of customers describe the teams as punctual and respectful, arriving when arranged and keeping households informed as the job progressed. The quality of the finished result is a recurring theme, whether the job involved a Tesla Powerwall upgrade, a new solar and battery setup, a Tesla car charger or servicing of existing air conditioners.

Reviewers also note that work areas were left clean and tidy, that problems encountered during installation were solved on the spot, and that advice on energy options was offered without pressure. Maintenance visits over several years are described in similar terms, with tradespeople happy to answer questions. Off-grid solar work and architecturally sensitive installations receive particular praise for thoroughness.

Air conditioning system supplierElectricianSolar energy companySolar energy system serviceSolar energy equipment supplierSolar hot water system supplier
Simmark Shoalhaven — Customer photo
Simmark Shoalhaven — Customer photo
Simmark Shoalhaven — Customer photo
Simmark Shoalhaven — Customer photo
Simmark Shoalhaven — Customer photo

Reviews

Reviews are taken from publicly available sources.

RK
Ron Kerr20 August 2026

We recently had solar panels and a battery installed in Berry. Beau and his team worked for three days undertaking the installation. We could not speak highly enough of the quality of their work. They were meticulous in their work, polite and kept us up to date with the progress of the installation. The area was left spotlessly clean and we highly recommend Simmark and their team for communication, quality of service and a great deal.

S
Sue19 August 2026

Solar batteries installed. Good price. Very happy with the service provided by Simmark. We previously had solar panels installed by Simmark but

BC
Brad Cohen6 August 2026

The team came out to upgrade my Tesla Powerwall, and I couldn’t be happier with the service. Beau, Tom, and Jake were professional, courteous, and highly knowledgeable. Their expertise was evident throughout the entire installation. Safety was clearly their highest priority, and they completed the work thoroughly without taking any shortcuts. They kept me informed throughout the process, left the work area clean and tidy, and delivered a high-quality installation. I would highly recommend this team to anyone looking for professional and reliable service. They left me as one very happy customer.

PH
Paul Hennessy11 June 2026

Great 5 star service yesterday from Simmark Shoalhaven who installed a 16kw Sigenergy battery for us in Woonona. Ace, Tom and Josh arrived on time, were friendly and polite with the job done in a few hours. They took away the rubbish and Ace took the time to explain the battery workings and the Sigenergy app. Thoroughly recommend!

GC
Geoff Collett4 June 2026

Great service and a good price. Simmark replaced one split system A/C and added an extra smaller unit as well as an EV Charger, backed up power point and some extra downlights. I would highly recommend them to others. Everything was installed professionally. It was all working beautifully the same day. Great work !

MD
michelle Davies4 June 2026

These guys are amazing! Super professional, kind, easy to deal with and great after sale care! They are the full package!

DN
David Novak1 June 2026

This has been a professional process from the pre sales engineering with Joel through to the installation team headed up by Ace. The system has been professionally sized for ours needs and the install is very good.

Solar panel installers in Nowra compared

Ordered by rating, weighted by the number of reviews — businesses with only a handful of reviews do not jump to the top automatically. 5 businesses in this category in Nowra are compared.

RankProviderRatingReviewsOpen Sat.
1Simmark Shoalhaven (this page)★ 5,0132No
2Solahart Shoalhaven★ 5,0120No
3Eternal Energy★ 5,017Yes
4Virtual Power Co★ 4,9191No
5Innovate Energy★ 4,9547No
Contact
+61244221244www.simmark.com.au121B Mcmahons Rd, North Nowra NSW 2541
Working hours
Monday09:00–16:00
Tuesday09:00–16:00
Wednesday09:00–16:00
Thursday09:00–16:00
Friday09:00–16:00
SaturdayClosed
SundayClosed