Are you considering adding a basement to your home?
Before you decide, make sure your property is suitable and that the design matches your lifestyle, budget, and what future buyers might want.
Adding a basement can boost your property’s value, but costs can go up if risks are discovered late. At Aldig, we assess site conditions and project needs early to identify potential issues.
Planning ahead helps avoid surprise costs, keeps your project on schedule, and makes sure the basement fits your property.
This way of working delivers efficient results and lasting quality, even on sites in Melbourne that are hard to access or have challenging conditions.
Checking if your project is possible early on is key to keeping costs under control.
Start with our feasibility and risk review to help you avoid common basement construction mistakes. We look for issues that can lead to extra costs or delays, such as limited access, complex excavation, groundwater problems, and the impact on nearby properties.
If your basement plans need adjustments to fit your budget, make construction easier, or meet regulations, our in-house engineers are here to help. We team up with your architect and consultants to review plans, sort out technical details, and document changes early. This way, approvals stay on schedule, and your project keeps moving forward.
Waterproofing isn’t just one decision. It’s a system designed for your specific site. We’ll help you explore your options and see if your basement matches your soil and water-table conditions. Wet and dry basements need different plans, so choosing the right approach is important.
When building close to property lines or digging deep, it's important to think about retention and excavation support. Talk to a retention specialist to find the safest way to handle your site and understand how it could affect your project.
Aldig helps you plan your basement with confidence by making important technical decisions early and explaining them clearly. We make sure nothing is left out, so there are no surprises later. We cover how to access the site for excavation, manage water, select the right waterproofing, and determine the best way to support walls near boundaries.
Our design and feasibility package takes the guesswork out for architects, engineers, and builders. This means approvals and pricing are more accurate because the tough issues are solved from the start.
Aldig uses a practical planning process to help you make smart basement choices before you face high costs or commitments. We review your site, your goals, and any plans you have, then sort out the details that can lead to redesigns, delays, or budget problems. We keep communication clear at every step and always focus on compliance and buildability. When it’s time for approvals and pricing, you’ll have a basement design that works both on paper and in real life.
We support residential builders and developers with basement construction, excavation and structural works designed to maximise space on urban blocks. Our team delivers reliable solutions for homes, townhouses and multi-unit projects where basements are used for parking, storage or added living areas. Every residential project is completed to meet Melbourne’s regulations and long-term structural requirements.
Aldig assists commercial builders with basement levels designed for car parking, plant rooms, storage and service areas. Our experience covers retail complexes, mixed-use buildings, office developments and hospitality sites across Melbourne. We construct strong, compliant underground structures that integrate seamlessly with broader commercial building programs.
We provide specialised underground and structural services for civil infrastructure projects that demand accuracy, safety and high-performance materials. Our work includes retaining systems, deep excavation, shotcrete, piling and foundation support for bridges, tunnels, transport corridors and public facilities. These solutions are engineered to support heavy loads and long-term public use.
Aldig delivers robust basement, substructure and ground-support services for industrial sites and mining-related developments. Our capabilities include excavation in challenging ground conditions, reinforced concrete works, retaining walls and underground access structures. We ensure each project is built to withstand demanding environments and operational pressures.
With years of proven results in Melbourne’s basement and concrete structure construction, Aldig brings expertise, quality and reliability to every project.
Backed by experience, Aldig uses proven data and costing models to ensure your project is accurately costed—minimising the risk of costly blowouts.
Our team specialises in overcoming challenging sites, tight access, and complex builds—using our own specialised equipment and in-house experience to deliver quality results.
Aldig is an accredited and fully insured waterproofing contractor, committed to quality and compliance.
Feedback from our clients highlights the care and technical skill that define our work. These testimonials reflect real experiences from homeowners, builders, and developers who have trusted Aldig with their basement and concrete structure projects. Their words speak to our commitment to quality, problem solving, and reliable project delivery.
The cost of basement construction in Melbourne varies depending on factors such as soil conditions, excavation complexity, size, design finishes, and access to the site. On average, basements can range from $3,000 to $5,000+ per square metre. For an accurate estimate, it’s best for Aldig to provide you a tailored quotation that is suited to your particular project.
“The cost of building a basement under an existing house in Melbourne varies depending on site conditions, soil type, access, size, and design complexity. On average, retrofitting a basement is more expensive than building one with new construction, as it requires careful excavation, underpinning, and structural support to protect the existing home.
As a general guide, costs can range from $3,000 to $7,000 per square metre, but every project is unique. A detailed geotechnical report and engineering design are essential to provide an accurate estimate. While it is an investment, a well-designed basement can add significant value, extra living space, and functionality to your property in Melbourne’s competitive housing market. Ask Aldig for your tailored quotation today. “
Key cost drivers in basement construction Melbourne include:
A basement offers multiple benefits for Melbourne homeowners, including:
Basement design should be completed by a qualified architect alongside experienced structural engineers. This ensures the layout is functional, compliant with building codes, and incorporates waterproofing, ventilation, and safety requirements. Aldig Contracting have an in-house engineering team which create a design which take in consideration soil conditions, site access and project requirements.
Basement engineering is carried out by structural engineers. They design the retaining walls, slabs, piles, and foundations to safely support the structure and withstand ground pressures. A geotechnical engineer may also be involved to assess soil and groundwater conditions before construction begins.
Adding a lift to your basement improves accessibility, convenience, and home value. Here’s how:
Increased Accessibility: A lift makes it easier for those with mobility challenges to access the basement, making your home more inclusive and safer.
Higher Property Value: A lift is a sought-after feature that can make your home stand out, potentially increasing its resale value.
Better Functionality: It helps transport heavy items between floors effortlessly, ideal for basements used as gyms, workshops, or entertainment spaces.
Enhanced Safety: A lift reduces the risk of injury from carrying heavy objects or navigating stairs, offering peace of mind for families.
Modern Aesthetic: Today’s lifts are sleek and can seamlessly blend with your home’s design.
Investing in a basement lift boosts both the practicality and value of your home.
Contact Aldig Contracting to explore lift options for your basement.
Yes, you can have a bedroom in a basement, provided it meets building code requirements for ventilation, natural light, and emergency egress (escape). A well-designed Melbourne basement bedroom adds functionality, comfort, and significant value to your property.
There are four main types of basement designs commonly used in residential construction: full basements, partial basements, walk-up basements, and daylight (walk-out) basements.
A full basement sits entirely underground and usually spans the full footprint of the house. This type of basement design in Melbourne is ideal for storage, garages, home gyms, recreational areas, and even additional living spaces.
A partial basement covers only part of the home’s footprint but is still fully underground. These basements are perfect for wine cellars, home theatres, golf simulators, or private retreats such as a man cave.
A walk-up basement has one side that opens into a courtyard or lightwell, with stairs providing access to ground level. This design allows natural light and ventilation, making it a great option for habitable areas such as bedrooms, offices, or entertainment rooms.
Commonly built on sloping blocks or hillside properties, a daylight basement is partially underground, with one wall opening directly to ground level. This design integrates beautifully into the landscape and maximises natural light and airflow. It’s an excellent choice for pool houses, indoor-outdoor entertaining areas, or bright and spacious living spaces.
Each type of basement has unique benefits, and our expert basement builders in Melbourne can help you choose the right design to suit your property, lifestyle, and budget.
At Aldig Contracting, we provide full end-to-end support for your basement construction project—designed to simplify the process, minimise risk, and deliver exceptional results. When you build a basement with Aldig, you gain access to a complete in-house team of engineers, construction experts, and project managers who specialise in complex basement builds, particularly on tight-access or challenging sites across Melbourne.
Our support includes:
We assess your site and plans early to identify risks, reduce delays, and help you make informed decisions. Our in-house engineer as well as speciality software allows us to determine if you project is feasible from the start.
Enjoy cost certainty with transparent pricing tailored to your project.
We handle excavation, piling, shotcrete walls, capping beams, suspended slabs, waterproofing, and more.
Whether you’re building a wine cellar, garage, or multi-purpose basement, we tailor our services to suit your needs.
Our team manages everything from planning to completion, from in-house design to owning our own equipment. We ensure seamless coordination and top-quality workmanship.
Protect your basement with robust wet and dry waterproofing strategies designed for Melbourne conditions.
With decades of experience and a reputation for delivering on time and on budget, Aldig is your trusted partner for reliable, stress-free basement construction.
Building a basement offers many benefits, including:
The main challenges when building a basement include:
Working with an experienced Melbourne basement contractor ensures these issues are managed effectively with the right design and construction solutions.
Common misconceptions about basements include:
At Aldig Contracting, we design basements tailored to each client’s needs and budget.
Partner with Aldig’s engineering and construction specialists in Melbourne for expertly designed, structurally sound basements and underground concrete solutions.
We’re here to help with any general enquiries about our services. Please complete the form below, and our team will respond to you promptly.
