Categories > Repairs
5 Best Foundation Repair Services in Perth to Fix Cracks Fast
After a few chats with building inspectors, I’ve learned that cracks and wonky floors aren’t exactly charming character features. Finding the best foundation repair in Perth can quickly jump from home project to urgent priority.
Perth’s mix of sandy soils and reactive clay can keep a house on its toes, sometimes literally. Leave movement unchecked, and today’s hairline crack could become tomorrow’s much uglier repair bill!
If the place is genuinely sinking, underpinning or ground stabilisation may be needed to get things level again. I’ve looked into Perth specialists worth considering before your home develops any more unwanted personality.
How much does foundation repair cost in Perth?
Foundation repair in Perth generally costs $2,000 to $25,000 for a standard residential property. The final bill depends on the extent of the movement and the stabilisation method needed.
Minor crack repairs can cost around $500 to $1,500. Resin injection usually runs from $4,000 to $16,000.
Traditional concrete underpinning can cost $1,000 to $4,500 per linear metre. Severe structural subsidence may push the total to $50,000 to $80,000+.
You may also need a structural engineering report from about $1,500, or a soil report costing $500 to $3,000. Plumbing and drainage repairs can add another $2,000 to $7,000.
1. CGI Solutions
Address: 26 Thornbill Way, Churchlands
Contact: 0410 308 454
Hours: Monday-Friday, 7 AM – 6 PM
CGI Solutions caught my eye for keeping foundation repair relatively low-key. With more than 20 years of construction experience, they specialise in microfine chemical grout injection for stabilising problem soil.
Their method uses a low-viscosity cement grout injected at low pressure into the ground. It’s designed to bind with the soil without the kind of major disturbance that can make repair work feel like an excavation project.
I also like that they cover more than one structural headache, including underpinning, soil stabilisation, and retaining work.
Free cracked-wall assessments and transparent quoting make the first step feel less daunting too.
The main drawback is availability, since they’re closed on weekends. Their services are also fairly specialised, so properties needing a very different repair method may have to look elsewhere.
Quickly assessed the situation and provided an excellent solution
Ashley was incredibly competent and helpful throughout the entire process.
He quickly assessed the situation and provided an excellent solution.
My house had several settlement cracks and needed to be stabilised, and CGI Solutions did an outstanding job.
I would highly recommend their services to anyone in need of professional and reliable support.
Maximilian Ullrich | Google Review
2. Advanced Ground Solutions
Address: 6 Noble Street, Kewdale
Contact: 0419 440 037
Hours: Monday-Friday, 7:30 AM – 4 PM
Advanced Ground Solutions stood out to me for not treating every sinking slab like it needs the same fix. They work with Perth’s coastal sands and reactive clays, then match the repair method to the ground conditions.
Their toolkit includes grout injection, polyurethane foam, and ground screws. That flexibility is handy when you’d rather avoid turning the backyard into a concrete-heavy construction zone.
I also like that they assess the underlying issue before recommending a solution. They work across residential, commercial, and infrastructure projects, so they’re used to jobs of very different sizes.
The main catch is that their focus is specialised ground-engineering work, so they may not be the one-stop shop for unrelated building repairs that come with foundation damage. They’re also closed on weekends.
To anyone having issues with their ground and foundation
Quick response to our enquiry, and the team were able to solve our issues at our property without any problems. The team that did the grouting into the ground were quick and cleaned up after themselves. Recommend to anyone having issues with their ground and foundation.
- Cassy Watkins | Google Review
Did their thing and helped get everything stable and secure again
We had some major cracks in our walls from some movement in our foundations. Joe and the team were so professional and fairly priced. Came in, did their thing and helped get everything stable and secure again. Big thank you!
- Garry F | Google Review
3. Coastline Chem Grout
Address: 9 Parker Avenue, Sorrento
Contact: 0450 818 944 / 0400 325 975
Hours: Monday-Saturday, 7 AM – 6 PM
Coastline Chem Grout appealed to me because you’re dealing directly with the people doing the actual work. Owners Craig and Nathan handle enquiries, quotes, equipment, and the job itself, which keeps things refreshingly hands-on.
They’ve got more than a decade of experience and focus heavily on chemical grout injection for Perth’s sandy ground. It’s a low-impact approach designed to stabilise soil without turning the place into a full-blown construction circus.
They also tackle issues like cracked walls, sinking floors, and foundation movement across residential and commercial jobs. I like that their setup feels specialised rather than scattergun.
The trade-off is that their foundation work centres strongly on chemical grout injection. If your property needs a very different underpinning system, another specialist may be a better fit.
Delivered very fast and was very reliable
I was dealing with Craig and his team to do a substantial amount of work for chemical grout injection. Craig was very responsive and went beyond the amount of work which was contracted. He delivered very fast and was very reliable. I can only recommend him also being much more affordable than his competitors. He knows his trade very well.
- Manfred Beiter | Google Review
Left the place clean, and the job was done efficiently
Don’t bother calling around, Coastline Chemical Grout is the company to go with. Craig and Nathan were brilliant. I tried calling other companies before I found Coastline Chemical Grout, and we are so glad we went with them. Craig is highly professional yet approachable. He left the place clean, and the job was done efficiently. Couldn’t have asked for better communication and transparency from a company.
- Bec Pearce | Google Review
4. Mainmark Perth WA
Address: 4/115 Excellence Drive, Wangara
Contact: 1800 623 312
Hours: Monday-Friday, 9 AM – 5 PM
Mainmark Perth, WA, stood out to me for bringing some serious tech to the sinking of foundations. They’ve been pioneering resin injection since 1989, using Teretek resin to re-level structures without major excavation.
Their method is designed to fill voids, strengthen weak ground, and lift slabs with minimal disruption. That’s a big plus if you’d rather not have your property looking like a dig site.
They also have in-house engineers and work across residential, commercial, infrastructure, and mining projects. Plus, I like that Teretek resin materials come with a 50-year product warranty.
The downside is that the Wangara location is listed as a warehouse only, not a showroom. They’re also closed on weekends, which can make weekday appointments less convenient.
Communicated with me every step of the injection
After meeting with Gavin to assess the house, he gave me a very professional opinion and solution. When I did not understand how to do my foundation injection. Gavin invited me to visit their site work and Dean gave me a good introduction. Thank you very much for Dean and two boys working for two days. They are very professional, and communicated with every step of the injection. They cleaned up and seal the holes at the end of job. Highly recommend Dean team . Thank you so much. Well done .
- qiu | Google Review
Thank you for the best possible outcome achievable
So You’re looking to relevel or support a foundation?
You have been stressing out?
Look no further:
SERIOUSLY stop looking and getting no where with those other companies.
From the very first phone call with Rona, site inspection from Gavin, to the four person crew led by Jamie that actually turned up have all been nothing less than professional’s. Not a single word of aggression, all working as a team and communicating like it was the most important job they have ever done
Thank you for the best possible outcome achievable
Kind regards
Robert
- Robert Perks | Google Review
5. Chemical Grout Injection
Address: Unit 15, 15 Carbon Court, Osborne Park
Contact: (+61) 400 214 627
Hours: Monday-Friday, 7 AM – 5 PM
Chemical Grout Injection impressed me with how comfortably they handle awkward sites and unstable ground. With more than a decade in business and over 2,000 projects completed, they’ve clearly had plenty of practice.
Their microfine cement injection is well suited to Perth’s sandy soils, while truck-mounted batching plants and zero-swing excavators help with tight access. It’s a clever setup when space is already working against you.
Better still, their system is designed for virtually no noise and no vibration.
They also offer free, no-obligation quotes and employ a full-time mechanical engineer to keep refining their equipment.
The trade-off is that they focus heavily on underpinning and soil retention rather than general structural repairs. Some jobs may also require access holes around 30 millimetres wide through existing finishes.
Very easy to deal with, was priced well
We are building a pool at home and needed addition foundation support for both our house and retaining wall due to the proximity of the pool to both. So I contacted Chris from Chemical Grout Injections who was very easy to deal with, was priced well compared to other businesses I had received quotes from. But it was the aftercare that was really pleasing. Even coming back to jackhammer a lot of excessive grout which had leeched into the excavation zone.
- Mark Dunn | Google Review
Very impressed with his knowledge, professionalism
We at Omega Homes have used Chris on two building projects requiring excavation on the boundary of neighbouring properties recently and both times we’ve been very impressed with his knowledge, professionalism & completely unflappable disposition.
Having used different grouting companies before, it always seemed more about what can’t be done as opposed to Chris’s attitude of let’s look at how we can make it work.
We will definitely be using Chemical Grout Injection for all our grouting needs in the future & have no hesitation whatsoever in recommending them.
- Tony Hollingsworth | Google Review
