SFGEO | Solid Foundation Geotechnical’s cover photo
SFGEO | Solid Foundation Geotechnical

SFGEO | Solid Foundation Geotechnical

Engineering Services

Marrickville, New South Wales 449 followers

From drill rig to design. SFGEO provides end-to-end geotechnical engineering and drilling services across Sydney Metro.

About us

SFGEO is a Sydney-based geotechnical consultancy and drilling contractor built for professionals who need fast, reliable ground data and a team they can actually talk to. We work with residential developers, civil and infrastructure contractors, commercial developers, architects, and environmental consultants across Greater Sydney. Whether you need a rapid site classification, construction-phase sign-offs, or a specialist drilling crew for your next environmental or geotechnical investigation, we have the people and the equipment to deliver. Our Services: 🔍 Site Classifications (AS2870) & Geotechnical Investigations (AS1726) 🏗️ Construction Phase Support — footing inspections, pier assessments, proof rolls, engineered fill compliance (AS3798) 📐 Geotechnical Design — pile design inputs, retaining wall parameters, bearing capacity, working platform assessments 🚜 Drilling & Sampling — we operate our own 4WD-mounted drill rig for auger drilling, DCP testing, tight-access drilling, and environmental soil/groundwater sampling (PSI/DSI Stage 1 & 2) Looking for additional drilling capacity? We regularly subcontract to other geotechnical consultancies and environmental engineers who need dependable field support without the overhead of maintaining their own equipment. Independent, insured, and professionally affiliated. We're the kind of firm that gives you a straight answer and gets the work done. Based in Marrickville | Sydney Metro Coverage Get in touch: 0423 483 555 | info@sfgeo.com.au

Website
www.sfgeo.com.au
Industry
Engineering Services
Company size
2-10 employees
Headquarters
Marrickville, New South Wales
Type
Privately Held
Founded
2025
Specialties
Site Classification, Geotechnical Investigation, Foundation Inspection, Temporary Works Inspection, Proof Roll Inspections, Batter Inspection, Slope Stability, Crane Pad Inspection, Bearing Capacity Inspection, Piling Inspections, Piling Platform Design, Pavement Investigation, Pavement Design, Drilling, Coring, Soil Testing, Ground Water Monitoring, Site Inspections, Geotechnical Reports, Environmental Sampling, Environmental Drilling, Ground Water Monitoring Wells, and Hydraulic Conductivity

Locations

  • Primary

    107 Sydenham Rd

    Level 3

    Marrickville, New South Wales 2204, AU

    Get directions

Employees at SFGEO | Solid Foundation Geotechnical

Updates

  • SFGEO | Solid Foundation Geotechnical reposted this

    Happy Friday LinkedIn! It’s been a massive week for me and SFGEO | Solid Foundation Geotechnical, the biggest in our young little existence. While I wait for the builder to go yell at some tradies I thought this is a good opportunity to show my appreciation to my family, friends and network. Without support and encouragement from you all, I don’t think we’d be where we are as a team so thank you to all! As a token of my appreciation please look at this beautiful sandstone cut face, isn’t she beautiful 😂🙏🏽

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  • Behind every architecturally designed home is a geotechnical report helping shape it. At SFGEO, we work across the whole project team. We help homeowners and architects secure DA and CDC approvals with confidence. We give structural engineers the bearing capacities, rock depths, and subsurface conditions needed to design the right foundation. No over-engineering, no under-engineering. And we give builders the clarity to plan before they're on site. It starts with a site walkover, then our in-house drill rig boring into the soil. Logging soil profiles, confirming conditions against AS 2870. Same day. No subcontractors. No third-party delays. Once works begin, we're back on site verifying pile and footing conditions, confirming that what's under the ground matches the design assumptions, and keeping the project moving. We specialise in architecturally designed and custom residential builds because that's where accurate data matters most. Build it right the first time. 0423 483 555 | sfgeo.com.au #GeotechnicalEngineering #AS2870 #ResidentialConstruction #SydneyArchitects #KnockDownRebuild

  • SFGEO | Solid Foundation Geotechnical reposted this

    Nine months ago I backed myself. I bought a ute, a DCP kit, grabbed my laptop and made the decision to go out on my own and build a geotechnical firm that does things differently, CLIENT FOCUSED, from the ground up. There have been many late nights of reports and admin, wondering if I made the right decision and whether the phone was ever going to ring. But it rang. This week I hit two huge personal milestones. We relocated the office to Marrickville, and finally got our ute-mounted, SPT capable Drill Rig on the road. Not just the fact that we did it, but what it means we can do now. I established SFGEO because I kept seeing the same issues, and I'm sure many of you have seen them too, the lack of support for younger staff, no proper infrastructure, and clients' projects being treated as transactions rather than the important milestones they actually are. That's what I want to change. Now that we have a proper base, the next goal is to bring on some undergrads or grads. Get their boots in the dirt, run the tests with them, teach them how to make the calls on site and then show them how it translates into the report. That's how it should work. With the new setup, that's exactly what we're planning to do. I never want SFGEO to be a massive company, I want it to keep to its roots of family owned, locally based, and FULLY INDEPENDENT. That way when you choose SFGEO as your geotechnical consultancy, you know the advice and drilling services we provide is because we care about your project and not because we have to keep our board rich. To my family, my friends, and the clients who took a chance on me, thank you. You backed me when all I had was the idea and a ute. Let SFGEO help deliver one Solid Foundation at a time. #GeotechnicalEngineering #Sydney #SFGEO #Marrickville #Engineering #NextGenEngineers

    Nine months in and we've decide to make some changes. Solid Foundation Geotechnical now have more capabilities so we can cover more of Sydney. We started SFGEO with a goal of keeping it local, keeping it independent, and make sure we aren't just here to deliver some fancy, technical report. Instead we are here to be your project partner. This week officially, we have MOVED, we have ADDED and we have UPGRADED to make that vision a reality. New Office - Marrickville (Coffee Capital, reporting for duty) We've officially set up at Suite 3.01, 107 Sydenham Road, Marrickville. Combined with our existing Parramatta base, we can seamlessly mobilise from the East and Inner West right through to the North and West — full Sydney coverage, without the delays. In-House 4WD Drill Rig - SPT & DCP Capable Its not just about drilling holes, our new ute-mounted rig brings SPT capabilities in a mobile package. We also keep a DCP kit to make sure all in-situ testing is covered. Now whether its a complex commercial project or residential job, we can get more data without the cost of floating in oversized specialised rigs when they aren't needed. This expanded capacity also means we can offer reliable subcontract drilling and field support to our fellow geotechnical and environmental consultancies across Sydney. Engineer Operated This is our real differentiator. The rig is operated directly by a Geotechnical Engineer. The same person pulling samples and running the tests is the one classifying the profile and writing your final report. Cleaner data, sharper foundation design inputs, and no lost-in-translation moments between the driller and the desk. To the family, friends, and early clients who backed us in these first nine months, we really thank you. We built because of you and with your help and guidance. We've also just launched our new website to reflect these upgrades: sfgeo.com.au Working on something that we might be able to assit you with? Shoot us an email over or send us a text, we're always happy to have a quick chat about your project. E info@sfgeo.com.au M 0423 483 555 #GeotechnicalEngineering #SydneyConstruction #SiteClassification #EnvironmentalDrilling #SPT #Marrickville #Parramatta #SFGEO

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  • Nine months in and we've decide to make some changes. Solid Foundation Geotechnical now have more capabilities so we can cover more of Sydney. We started SFGEO with a goal of keeping it local, keeping it independent, and make sure we aren't just here to deliver some fancy, technical report. Instead we are here to be your project partner. This week officially, we have MOVED, we have ADDED and we have UPGRADED to make that vision a reality. New Office - Marrickville (Coffee Capital, reporting for duty) We've officially set up at Suite 3.01, 107 Sydenham Road, Marrickville. Combined with our existing Parramatta base, we can seamlessly mobilise from the East and Inner West right through to the North and West — full Sydney coverage, without the delays. In-House 4WD Drill Rig - SPT & DCP Capable Its not just about drilling holes, our new ute-mounted rig brings SPT capabilities in a mobile package. We also keep a DCP kit to make sure all in-situ testing is covered. Now whether its a complex commercial project or residential job, we can get more data without the cost of floating in oversized specialised rigs when they aren't needed. This expanded capacity also means we can offer reliable subcontract drilling and field support to our fellow geotechnical and environmental consultancies across Sydney. Engineer Operated This is our real differentiator. The rig is operated directly by a Geotechnical Engineer. The same person pulling samples and running the tests is the one classifying the profile and writing your final report. Cleaner data, sharper foundation design inputs, and no lost-in-translation moments between the driller and the desk. To the family, friends, and early clients who backed us in these first nine months, we really thank you. We built because of you and with your help and guidance. We've also just launched our new website to reflect these upgrades: sfgeo.com.au Working on something that we might be able to assit you with? Shoot us an email over or send us a text, we're always happy to have a quick chat about your project. E info@sfgeo.com.au M 0423 483 555 #GeotechnicalEngineering #SydneyConstruction #SiteClassification #EnvironmentalDrilling #SPT #Marrickville #Parramatta #SFGEO

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  • SFGEO | Solid Foundation Geotechnical reposted this

    I can’t reiterate enough how satisfying it is to help clients get a very important step closer to living in their future home. Having your foundations designed and constructed correctly is essential for any project to move forward with confidence. At SFGEO | Solid Foundation Geotechnical I wanted to make sure that we aren’t just a team that helps ticks a box for certifiers, rather, we get involved and hands on from preliminary works through to the finished slab. Today the home owner came and thanked me because, saying they were so lost before we jumped on board and was at the point of giving up on the build before our initial consultation. They had no idea what a pile was, and their contractors were overwhelming and pressuring them but we stepped in and took the lead. It made me so happy to know that I could put them at ease, liaise with contractors on their behalf and keep them informed and on track the whole way along. That’s the difference I wanted to make and am glad we are on the right track!

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  • SFGEO | Solid Foundation Geotechnical reposted this

    On drawings, plans and projected schedules getting your slab right is easy, in reality it there are a lot more hiccups. I came to site today to check out some piers, but ended being the foreman cause all the labourers are out, and we have rain tomorrow and for several days and we need concrete in asap! I don’t leave you hanging and wondering what to do next. That’s the difference I wanted to make when I established SFGEO | Solid Foundation Geotechnical. I dont want to just give you a fancy report, I wanted to make sure that your foundations all the way to your finished slab are done right so you can build with confidence, build off a solid foundation.

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  • SFGEO | Solid Foundation Geotechnical reposted this

    Another early morning, another opportunity to help an excited family take their first and most important step towards their dream home. Having an accurate and detailed geotechnical report can help you save so much in the long run and assist to avoid nasty surprises during construction. At SFGEO | Solid Foundation Geotechnical we care about your biggest investment just as much as you, so if your looking for a tailored solution to meet your needs for your forever home visit our website www.sfgeo.com.au and book your free consultation.

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  • SFGEO | Solid Foundation Geotechnical reposted this

    Long weekend is over and we are right back into it helping our clients get in their new homes quicker. At SFGEO we don’t sit behind a desk, we jump into the excavations and tell you what’s really happening! If you need geotechnical advice on your next project that’s more than just a report but without having to take out a second mortgage, feel free to reach out for a chat 0423483555 or send an enquiry through our website www.sfgeo.com.au.

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