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Google Reviews

Thank you Mainmark for your professionalism and outstanding work

We have an older home (80 years old) on a sloped block and it was starting to show some signs of subsistence (cracks in the walls, floor boards dropped). We had emailed and contacted a couple of companies and settled on Mainmark to provide advice and remediation works. Their communication was fantastic from our initial enquiry right through to the job being completed. We understood the issues, what work needed to be done, and the costs that were involved. All provided before we signed any contracts or made a deposit. On the day the team were on time and efficient in getting the job done. The work required them to be inside and outside our home. They were very respectful and cleaned up after completing the work. Just to add, the day the team worked was a very hot November day. This was no bother for them and they worked above beyond our expectations. Thank you Mainmark for your professionalism and outstanding work. We would recommended anyone to get in touch with them for issues regarding their home.

Sarah – NSW

The results are unbelievable

Kevin and his team were amazing! They explicitly explained the process to me and the results are unbelievable. I can now sleep peacefully at night knowing the problem has been solved and their work is guaranteed for 50 years. Everyone I spoke with from this business is lovely and helpful. I highly recommend Mainmark.

Tamara Finn – NSW

The Team were professional & friendly

We have had a substantial crack in our house foundation, Mainmark quoted a price that we accepted, the team arrived on time , carried out the repair to the house foundation to the extent that the crack closed up & The Levels of the brickwork came back to the correct position . The Team were professional & friendly, I will highly recommend this companies work .

Douglas Byron – NSW

Very streamlined process from start to finish

Extremely satisfied with the work performed by Mainmark. Very streamlined process from start to finish. Each step was explained by staff, who were very polite and respectful to both me and my home.

Catherine Pannam – VIC


Looking for a company with experience Mainmark are who you should use

Looking for a company with experience Mainmark are who you should use, will discuss your issues and give you a professional answer and explain what is happening. Had Connor out and he even checked levels for me for peace of mind.

Rod Higgins – VIC


On time, minimum disruption and cost effective solution

Professional service from a team of very good people. On-time, minimum disruption and cost-effective solution that is clean and guaranteed.!

Manual Vlandis – NSW

Job was done promptly and neatly

Had recurring subsidence issues in my garage after initial treatment in 2017. Manager came on site, we had a discussion about tree roots and retaining wall effectiveness and came up with a satisfactory solution. I received first cancellation and the job was done promptly and neatly.

Rejinx01 – QLD

Great confidence from beginning to the end

Many thanks to a great and professional team who gave me great confidence from the beginning (David in the office) to the end. Special thanks to Alan who came out to investigate my issue and in a calm way, explained what the problem was and how they would rectify it and of course, great work by the personnel from Mainmark who attended my home on Monday. I couldn’t be happier with the result!!

Julie Mclaughlin – VIC


Fantastic result on stabilising our foundation

Fantastic result on stabilising our foundation. Mal, Inoke & Sevoke were very polite and helpful and explained the process thoroughly and left the property clean and tidy. Extremely happy with the result and service by Mainmark and their expert staff. Will certainly recommend to anyone needing ground stabilising. Thank you

Peter Maghazey – NSW

The best solution to fix this problem was obviously resin injection

It was in March 2023 that a subsidence issue was found in my property in Ballarat as part of a building inspection report. The best solution to fix this problem was obviously resin injection. I got a number of quotes and consulted a number of experts to finally appoint the best ground engineering service for this purpose. Sam Hassan from Mainmark was able to gain my trust. He is very good at supporting the customer throughout the entire work process from the initial property inspection, to contract and price negotiations and finally the project completion. His careful assessment of the issue did make us organizing a drain inspection and helped us with discovering few drainage issues at the property as well which got addressed and fixed afterwards. Mainmark were really efficient and completed the Teretek injection in less than 4 hours. Polyurethane resin injection is an expensive service but when it becomes a necessity, it’d be better to be applied sooner than later and surely I highly recommend Mainmark Australia for this purpose.

Kirarash Mostafavi -VIC

The team from Mainmark were great.

The team from Mainmark were great. Did an excellent job. Very professional and friendly. Thank you Ben, Dylan, Anv and Steve. Great job!

Samuel Tasdelen – VIC

Brilliant workmanship

Big thanks to Steve, Ben & Anu. Brilliant workmanship and extremely helpful. Cheers guys.

Mick Nigro – VIC

HIghly recommend!

Highly recommended! We noticed a crack appear in one of the walls in our house and wanted to have our concrete slab checked to see if it was sinking before it got worse. We called Mainmark Ground Engineering and they sent out Connor and Philip to do an assessment and quote. We were a bit nervous about what they would say because we had no idea about what could be wrong or what it could cost to fix. They were super friendly and professional and did a detailed level check of the entire floor with some high tech looking devices and came to the conclusion it was nothing to worry about, it was just sessional movements from the weather getting hotter and the house expanding a little.They also gave us advice on what to look out for with concrete slabs in the future. We really appreciate the effort and attention to detail they showed. It’s refreshing to deal with people like this, I’d recommend these guys to anyone!

Claire Tao – VIC

Mainmark did an exceptional job

Mainmark did an exceptional job correcting a running crack in our brickwork. Peace of mind with a 50-year warranty is also a great selling point. Chuffed with the end result.

Nathanael Jeanneret – VIC

Communications with head office (lovely Sandy) were faultless!

Martin came out to inspect my property and from the get-go – I knew I would end up choosing Mainmark. Martin took the time to review the property and also spent time discussing the issues with me. A clear scope of work & a quote came quickly. Once I accepted the quote, communications with head office (lovely Sandy) were faultless! I was considered in all plans. On the day of the job, 3 top blokes (Kevin & crew) turned up on time and were not only focused, but super friendly. They left the work area clean & tidy. The end result – incredible! My driveway and concrete pathway is no longer sinking with unsightly gaps. I’m thrilled! Within a day of final payment, I was given my 50 year warranty certificate. Thanks Mainmark! Can’t recommend you guys enough!

Kate Chapman – NSW

great technical advice and fast service

Excellent service and product, great technical advice and fast service. Left site very tidy

Jo Watts – SA

I am very pleased with the results

Hi, I have a high set house in Beenleigh QLD. I engaged Mainmark Ground Engineering to come out and see if they can help to firm up and lift corner of the house and provide a quote. I was a bit unsure whether to accept quote and go ahead with work, but the area manager Brett was great he said we will be able to close gap as he was a experienced installer of the product used. He knows his job and gave me the confidence to go ahead with the work, I am very pleased with the results thanks Brett and Mainmark Ground Engineering team. Sorry no photos of crack before.

Colin Healy – QLD

Our cracks resolved in front of my eyes

Our cracks resolved in front of my eyes. Incredible. Unfortunately the gap between the ceiling and roof is still a big problem that we still need someone to help us sort out. Excellent customer service

Graham Straughan – SA

Professional insight, honesty and expertise

Just had Paul come out today to look at a crooked garage wall for us. He explained the likely causes and suggested that we resolve some of the environmental issues first as their solution wouldn’t be appropriate until this was done. Really appreciated his professional insight, honesty and expertise.

Joe K – VIC

A very well oiled operation!

Every touch point as part of the process (from calling with an initial enquire to the team turning up on time on the day of the job) was seamless and easy. Well done Mainmark on having a very well oiled operation! We were told the team would need to cut holes in floor boards as part of the job. I expected there to be some work for us to repair the boards when they finished however, it was all repaired for us on the day. Very happy with the result.

Trilby McNeilage – VIC

Professional from first contact

Professional from first contact, this company kept us informed from the very beginning. We are more than happy with our results and highly recommend them. Every staff member was informative, approachable and felt they couldn’t do enough for us. A special thank you to Davide, Dr. Phil, George, Ben ( a perfectionist ), Nick and Dillon for making this process seamless and we enjoyed meeting you. Very rarely do you find a company that you genuinely like all the staff members, great team Thank you Mainmark

Anne Rose – NSW

The people onsite are very professional and polite

The people onsite are very professional and polite. Shaun are very informative and helpful also Rob Voyle paid a visit on the day on the job. The managements are informative about the dated of the job they are reliable. So thank you all.

Antonio Buco – SA

Extremely helpful

Mainmark were extremely helpful in assisting us to rectify a troubling building problem.

Catherine Maud – VIC

Very professional service from start to finish

Very professional service from start to finish. The guys lifted and levelled my footing, being so careful not to damage my hedges. Wonderful outcome, job done as requested. Would highly recommend this Company. Great bunch of guys.

Dianne Plumb – NSW

The team were competent, knowledgeable and flexible

The mainmark underpinning service for this 60s dwelling was an affordable and guaranteed solution to an obvious former stability issue due to former poor drainage. The team were competent, knowledgeable and flexible. I would recommend Mainmark for a solution option in similar circumstances.

Kevin Holland – VIC


Would recommend them to anyone

Very informative, explaining what was being done through every step of the job, would recommend them to anyone who needs their house relevelled. This crack has been closed significantly, the sun doesn’t shine through it any more ?? …

Kim Rist – NSW

Respectful and courteous

Would highly recommend the service from Mainmark. They were professional and did the job as expected. The guys that attended our house were respectful and courteous, we even baked chocolate fudge for them. I would highly recommend their services.

Terry Wenban – QLD

An exceptional job

Mainmark did an exceptional job correcting a running crack in our brickwork. Peace of mind with a 50 year warranty is also a great selling point. Chuffed with the end result.

Nathanael Jeanneret – VIC

Contacts were helpful & prompt

I have tried many solutions to my soil problem, then I came across an ad. for this product which is inserted into the ground to stabilise the soil , it’s from Mainmark Engineering Qld. All my contacts were helpful & prompt.

Margaret Wilcox – QLD

© 2023 The Mainmark group of companies. ‘Mainmark®’, ‘Terefil®’, ‘Terefirm®’ and ‘Teretek®’ are trademarks of the Mainmark group of companies.

Mainmark Ground Engineering Pty Ltd
ABN: 51 606 182 503





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