Underpinning
Strengthening the ground beneath existing foundations to help manage settlement and support your structure.
Discuss your project
Ground stabilisation.
Built on experience.
Specialising in micro-fine grout injection for residential, commercial and civil projects across Perth.
10+Years of hands-on
industry experience
industry experience
Local knowledge.Proudly Western Australian
Across every scale.Residential · Commercial · Civil
Tell us about your projectFree, no-obligation quotes 01 / Our services
Solid ground.
For what’s next.
From existing foundations to new excavations, we provide grout injection services tailored to your site.
Soil stabilisation
Improving ground stability around excavations and construction works in suitable soils.
Discuss your projectRetaining wall support
Grout injection to provide additional backing and support to existing retaining walls, subject to site conditions.
Discuss your projectVoid & cavity filling
Filling difficult-to-access underground spaces and cavities with grout.
Discuss your project05Basement waterproofing
External grout injection treatments to help reduce water ingress around basement walls, where site conditions and access allow.
06Sinkhole remediation
Filling voids and treating the surrounding ground to help stabilise affected areas.
07Temporary retaining
Temporary ground support for excavation works while permanent retaining structures are constructed.
02 / On site
Experience you can see.
A closer look at the ground we work with.
Project photographs from Perth Underpinning.
03 / Perth Underpinning
Local knowledge.
Hands-on experience.
10+
years of industry
experience
We’re a local WA business with a practical approach to ground stabilisation.
With over a decade of industry experience, we work with homeowners, builders and contractors on residential, commercial and civil projects.
Every site is different. We take the time to understand the conditions, discuss the work and provide a clear, no-obligation quote.
- Specialist micro-fine grout injection
- Personal service and straightforward advice
- Solutions considered around your site
From first call to completion
A clear way forward.
- 01
Discuss & inspect
We discuss your concerns and review the site conditions.
- 02
Plan & quote
We explain the proposed scope and provide a clear quote.
- 03
Carry out the work
We complete the agreed grout injection and stabilisation works.
- 04
Complete & follow up
We review the work and discuss any relevant next steps.
What is micro-fine grout injection?
Also called permeation grouting, it involves injecting a fine cement-based grout into suitable soil. The grout enters spaces between soil particles and, as it cures, forms a stronger mass.
Is grout injection suitable for every soil?
It generally works best in permeable, granular soils such as sand. Clay, silt, rock and other ground conditions can restrict grout flow. Suitability needs to be considered for each site.
How do I arrange a quote?
Call 0456 789 179 or email projects@perthunderpinning.com.au. Let us know the site location, what you’re planning and any concerns. Photos and available plans help us understand the project.
Let’s talk about your project
Start on
solid ground.
Get in touch for a free, no-obligation quote.
Call Perth Underpinning0456 789 179projects@perthunderpinning.com.au
Monday–Friday · 7am–4pm
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