Basement Packages

Turnkey Basement Builders in Sydney

Planning a basement for your home or development project? Substructure Solutions offers complete basement construction packages tailored to your space, your needs, and your site conditions.

As experienced basement builders in Sydney, we handle the entire process: excavation, construction, waterproofing, and more. We deliver quality, end-to-end results with minimal disruption.

Whether you're starting from scratch or adding a new basement build, our team brings decades of underground construction experience to every job. With a focus on safety, durability and smart design, we build basements that work hard and last.

Our turnkey basement packages eliminate the guesswork involved in building underground. We coordinate all the moving parts, so you don't have to.

What’s Included In Our Basement Construction Packages?

Excavation & Site Prep

Excavation & site prep with safe and efficient removal of soil and minimal impact to.

Piling & Retention Systems

Basement piling and retention systems to stabilise the surrounding soil.

Concrete Basement Construction

Concrete basement construction using high-strength materials and structural steel, where required.

Custom Ground Slabs

Ground slabs tailored to the structural design and load requirements of your build.

Wall System Options

Wall systems, including block work, shotcrete or Dincel, which are the most common choices for strength and efficiency.

Suspended Slabs

Suspended slabs to support upper levels or complex internal layouts.

Basement Waterproofing

Basement waterproofing services with proven membranes and techniques to protect against leaks, moisture and dampness.

Drainage & Ventilation

Drainage, ventilation and other essential services.

Fit-Out & Internal Build

Fit-out ready finish or full internal build, depending on your goals.

We work with homeowners, architects, and developers across Sydney to bring bold basement solutions to life, from storage levels and home gyms to wine cellars and underground garages.

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Why Choose Substructure Solutions?

Not all basement construction contractors are the same. At Substructure Solutions, we specialise in complex and custom basement builds. Our team understands the unique risks and engineering challenges involved in working below ground, and we have the experience to manage them confidently.

You’ll get:

  • A dedicated contractor for basement excavation and builds.
  • Transparent pricing and staged packages customised to your site.
  • Skilled engineers, operators and project managers.
  • Site-specific strategies for drainage, waterproofing and soil retention.
  • Guidance on approvals and compliance.
  • Ongoing communication throughout the build.

Looking for inspiration? Explore our projects, including underground man cave conversions, underground room extensions, and bespoke underground bunkers in Australia.

Basement Waterproofing Done Right

Water ingress is one of the most common issues in poorly built basements. That’s why our team includes a specialist basement waterproofing contractor on every job.

We offer a range of basement waterproofing solutions that match your structure and soil conditions. This might include:

  • External membrane systems
  • Negative-side waterproofing
  • Full perimeter drainage
  • Sump pumps
  • Crack injection and sealing

Proper basement waterproofing services aren't optional. They're part of ensuring your basement remains usable, valuable, and structurally sound for the long term.

Flexible Packages For All Types Of Basements

We know no two sites are identical, so we don’t offer one-size-fits-all pricing. Instead, we provide fully scoped, transparent basement construction packages with flexible inclusions.

We build:

  • Multi-room basements for new homes
  • Small basement additions for storage or utility
  • Reinforced concrete shelters
  • Underground bunkers in Australia for safety and security
  • High-end underground man cave and entertainment spaces

From compact plots in the Inner West to sloping blocks on Sydney’s North Shore, we tailor each package to fit your goals and constraints.

Already Have Plans?

If you've already got plans drawn up, we’re happy to work with your designer or architect to get the project moving. We can provide feasibility assessments, pricing estimates, and insight into construction staging or site limitations.

We also offer related services like remedial structural work and wall removal in Sydney. So if you're converting an existing basement or need support on adjoining structures, we can help.

Building Your Dream Underground Space

Basements add serious value to homes in Sydney, especially in areas where land is limited. With smart planning, you can create a private retreat, a secure storage space or even an income-generating level beneath your home.

Need help turning your basement ideas into reality? Speak to Substructure Solutions today and ask about our complete basement packages. We’ll walk you through your options and help you plan a build that’s safe, compliant and built to last.

Contact us now to discuss your project.

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Contact Us Today

If you're considering building an underground bunker, trust Substructure Solutions to deliver expert craftsmanship and superior security. Contact us today to discuss your project and discover the ultimate underground protection solution.

Your safety is our top priority.

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TESTIMONIAL

★ ★ ★ ★ ★

Sarkis successfully repaired my leaning pier under the house. His expertise was evident throughout the job. He finished the job in record time. To my amazement! He is brilliant!!! I had been worrying about the pier for some time b4 I called him. Don’t bother calling anyone else! Satisfied customer 100 per cent.

Bellywub69

★ ★ ★ ★ ★

Sarkis from Substructure Solutions recently completed a sizeable repair job for me. He was professional and easy to work with starting from the initial assessment and quoting, through to completion of the job. It was completed on time and on budget, and he was always quick to address my many questions and concerns along the way. I should also mention that he went above and beyond when he helped to secure a shed that threatened to blow away in a mini-gale – quite unrelated to the contracted job. I am very happy to recommend Sarkis and his team.

Chris Wickremasinghe

★ ★ ★ ★ ★

Top bloke, transparent with the pricing. Came early, did the job (added three support stumps) and finished early. Easy to work with. Definitely would work with again in the future.

Chris