Aldig delivers engineered basement construction and retention solutions across Melbourne and Victoria, supporting homeowners, builders and consultants from excavation through to completion. With over 20 years of experience, we specialise in complex basement projects, providing safe excavation conditions, stable retention systems and reliable structural solutions tailored to each site. From tight-access residential basements to technically demanding projects, we combine practical expertise, quality workmanship and careful planning to deliver durable, high-performance results.
From high-end residential homes and basement extensions to complex multi-level commercial developments and tight-access sites, our experienced team manages every stage of construction. Our end-to-end service includes piling, basement retention systems, excavation, waterproofing, reinforced concrete structures, and project coordination, ensuring a seamless construction process from start to finish.
Through our integrated approach, we reduce project risk, improve construction efficiency, and deliver outstanding quality while providing proactive communication and support throughout every stage of the project.
With more than 20 years of specialist experience, homeowners, builders, architects, and developers across Melbourne trust Aldig to deliver safe, high-quality, engineered basement solutions on even the most challenging sites. Our commitment to quality workmanship, technical expertise, and lasting client relationships has established us as a trusted partner for basement construction across Melbourne.
If you’re looking for an experienced basement construction contractor who understands the complexities of underground construction, our team is ready to help bring your project to life with confidence.
Our experienced team assesses your project early to identify design improvements, construction efficiencies and cost-control opportunities before works commence.
Working from your existing engineering design, or one completed by our in-house engineer, we develop a clear, fixed-price solution that identifies risks early, minimises variations and helps eliminate unexpected costs throughout construction.
We consider site access, excavation methodology, structural requirements and construction sequencing to ensure the proposed solution is practical, efficient and buildable.
By addressing potential challenges before construction begins, we give builders and homeowners greater cost certainty and confidence from day one.
With over 20 years of specialist experience, Aldig delivers complete, end-to-end basement construction packages for tight-access sites, complex builds, and basements excavated in rock or sand.
Our specialist capabilities include piling, AFS, blockwork and Dincel walls, waterproofing, concrete slabs, suspended slabs, architectural finishes, and structural solutions for both habitable spaces and garages.
We can also integrate turntables, car stackers and car lifts to maximise functionality and make better use of your available basement footprint.
One specialist trade. One coordinated team. One point of responsibility — from groundworks through to completion.
Aldig delivers retrofit basement solutions for existing homes, heritage properties and complex sites where conventional construction methods may not be suitable.
Our team specialises in tight-access construction, underpinning, tunnelling, staged excavation, structural support and complex basement designs beneath or alongside existing structures.
From careful ground retention and excavation through to waterproofing, reinforcement and concrete construction, we develop practical solutions that minimise disruption while protecting both the existing property and neighbouring buildings.
Our experienced team transforms challenging and underutilised spaces into high-quality, functional basements and living spaces.
Aldig delivers reliable basement waterproofing solutions designed to protect underground structures from groundwater, moisture ingress and long-term water damage.
As insured and certified installers of the CETCO Voltex waterproofing system, our team applies proven waterproofing solutions in accordance with manufacturer requirements and project specifications.
From new basements and complex structures to tight-access sites and challenging ground conditions, we carefully coordinate waterproofing with the surrounding structure to provide effective, long-term protection.
Protect your basement with specialist waterproofing, quality installation and the confidence of working with an experienced and certified team.
Our architectural finishes combine precision, quality workmanship and attention to detail to deliver concrete that performs as a structural element while enhancing the overall design of your project.
From off-form concrete and feature walls to carefully detailed architectural elements, we focus on achieving refined finishes that complement the surrounding architecture and add lasting value.
Every detail is considered, from formwork preparation and reinforcement placement through to concrete placement, curing and finishing, ensuring a consistent and high-quality result.
With a commitment to quality workmanship and refined execution, we deliver architectural concrete finishes that stand out for all the right reasons.
Aldig follows a clear and organised process designed to deliver safe, durable and efficient basement construction across Melbourne. Each stage is handled by experienced professionals who focus on communication, compliance and reliable workmanship from start to finish.
This critical preliminary stage allows us to refine the piling and foundation solution to suit the specific requirements of the project, reduce construction risk, and support long-term structural performance.
At Aldig, we provide specialist piling and retention solutions for complex Melbourne sites. Our proven construction methods help minimise vibration, reduce disruption to surrounding properties, and ensure each project is completed safely, efficiently, and in accordance with Australian standards and engineering requirements.
With more than 20 years of experience, Aldig delivers expert basement solutions with a focus on precision, innovation, and long-term performance. From complex retrofit basements and tight-access sites to premium habitable spaces, every project is carefully planned and constructed to maximise functionality, property value, and longevity.
A full basement sits entirely underground and usually extends beneath the full footprint of the house. This type of basement is ideal for garages, storage areas, home gyms, recreational spaces, and additional living areas.
Commonly constructed on sloping blocks or hillside properties, a daylight or walk-out basement is partially underground, with one side opening directly to ground level. This design integrates naturally with the surrounding landscape while maximising natural light, ventilation, and access to outdoor areas. It is an excellent option for pool houses, indoor-outdoor entertaining spaces, or bright and spacious living areas.
A partial basement is constructed beneath only part of the home’s footprint while remaining fully underground. This option is well suited to wine cellars, home theatres, golf simulators, storage areas, or private retreats.
A walk-up basement includes an opening to a courtyard or lightwell, with stairs providing direct access to ground level. This design improves natural light and ventilation, making it suitable for habitable spaces such as bedrooms, home offices, entertainment rooms, or additional living areas.
A retrofit basement involves constructing a new basement beneath an existing home or building. This complex process requires careful planning, specialist engineering, precise excavation, and appropriate structural support to protect the existing structure throughout construction. When completed correctly, a retrofit basement can significantly increase usable floor space, improve functionality, and add long-term value to the property.
Aldig delivers reliable piling and foundation systems for high-end homes and multi-unit builds. We design and install cost-effective residential piles and foundations that meet Australian Standards and builder timelines.
Aldig specialises in delivering high-quality piling, foundations and underpinning for residential renovations across Melbourne. Whether you're extending, adding a basement, or strengthening an existing structure, our team provides safe, reliable solutions tailored to your site conditions.
Aldig provide high-capacity piling and foundation solutions for childcares, car parks, medical centres, retail, and mixed-use developments. Our systems handle complex loads and tight urban sites with precision, safety, and efficiency
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.
Access depends on whether the basement is for vehicles, pedestrians, or both. Options include:
Our basement builders in Melbourne design access solutions that are safe, functional, and compliant with building codes.
Basements typically use:
The type of wall depends on the basement design, soil conditions, and waterproofing requirements.
Partner with Aldig’s engineering and construction specialists in Melbourne for expertly designed, structurally sound basements and underground concrete solutions.
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