Closed· Confirmed
Mark Group
North Ryde, NSW
Closed
30 April 2024
Trading since
1 July 1974
Systems installed (est.)
~84,150
Size
Large
Why we think this
Closed because SolarQuotes has been told it went out of business; ABN 75120430800 (MARK GROUP PTY LTD) cancelled on 16 April 2015. Closure dated 30 April 2024, from Last SolarQuotes review (last seen trading). Against that: Google still lists Mark as open; ABN 66604691867 (SEGH PTY LTD) is still active; ABN 75695794202 (MARK GROUP PTY LTD) is still active; ABN 89671084361 (MARK AUSTRALIA PTY LTD) is still active. Google and websites often lag a collapse, so the registers win.
The date comes from: Last SolarQuotes review (last seen trading).
The business has stopped trading: a register, Google or the industry's review sites say so.
What customers said
The 50 most recent of its 1683 SolarQuotes reviews
The 5 star reviews say
Five-star reviews praise the sales staff as knowledgeable, sincere and helpful, and the installers as efficient, professional and tidy, with quick installation after the sale. One reviewer also notes the system worked well once running, though several mention delays from the electricity supplier rather than the installer.
The 1 star reviews say
One-star reviews complain about poor installation quality (wiring, conduit, brackets and roof work), systems that underperformed or never worked properly, slow and poor repairs (an inverter fault left about three months, a dead data card), unanswered warranty claims, and a company merger or change of ownership leaving customers without support. Some describe lying and blame-shifting, and one describes a large loss of money through lost production and damage.
Summaries of the reviews, written by us from the public reviews.
The evidence
The legal entities behind it
SEGH PTY LTD
ABN 66604691867 · Australian Private Company · Active · since 11 March 2015
Trading names: Mark Group
MARK GROUP PTY LTD
ABN 75695794202 · Australian Private Company · Active · since 2 March 2026
Trading names: MRK IT SERVICES, MRK TRADING, MARK FACILITIES MANAGEMENT
MARK GROUP PTY LTD
ABN 75120430800 · Australian Private Company · Cancelled · since 16 April 2015
MARK AUSTRALIA PTY LTD
ABN 89671084361 · Australian Private Company · Active · since 5 September 2023
Installer gone? We look after orphaned systems.
If the company that put in your solar or battery has closed, we can check the system, chase the manufacturer's warranty and keep it running.