Basement Retention Packages Across Melbourne & Victoria

Aldig delivers engineered basement retention solutions across Melbourne and Victoria, with the flexibility to provide either a complete design-and-construct service or construct retention systems from client-supplied engineering documentation. Our specialist team works with homeowners, builders, developers and consultants to deliver safe, reliable and efficient retention systems that create stable excavations, protect neighbouring structures, and support successful basement construction.

Basement
Retention Packages Across Melbourne & Victoria

Aldig delivers engineered basement retention solutions across Melbourne and Victoria, with the flexibility to provide either a complete design-and-construct service or construct retention systems from client-supplied engineering documentation. Our specialist team works with homeowners, builders, developers and consultants to deliver safe, reliable and efficient retention systems that create stable excavations, protect neighbouring structures, and support successful basement construction.

Basement Retention Packages

Built on Experience. Backed by Quality.

Over 20 years of experience delivering smarter basement solutions by identifying risks and reducing unexpected costs before construction starts.

Every successful basement begins with a well-designed and expertly constructed retention system. At Aldig, we deliver reliable basement retention solutions that provide the stable foundation for safe, efficient and successful construction. From piling, capping beams, bulk excavation and shotcrete walls to complete retention systems, we work with homeowners, builders, developers and consultants to ensure every project is built on solid ground.

Basement excavations place significant pressure on surrounding soil, neighbouring structures and property boundaries. That’s why we take a proactive approach; helping identify the most suitable retention solution early in the project to minimise risk, improve constructability and avoid costly delays.

Our focus is on controlling ground movement, maintaining excavation stability and preparing the site for the next stage of construction. This is particularly important for Melbourne projects with restricted access, sloping sites, neighbouring buildings or challenging ground conditions, where careful planning and specialist expertise make all the difference.

Whether you require a design-and-construct solution or construction to an
existing engineer’s design, Aldig provides the experience, technical capability and practical knowledge to deliver quality basement retention systems with confidence.

BASEMENT RETENTION PACKAGES

Control ground movement before excavation starts

A basement retention package brings together the key works needed to support the site before and during excavation. Aldig plans and delivers retention systems based on access, excavation depth, boundaries, ground conditions and the surrounding structures that need to be protected.
Whether your project requires piling, capping beams, bulk excavation, shotcrete walls or a combination of these works, we help create a practical retention solution suited to the site.

Retention System Design

Effective basement construction begins with a well-planned retention strategy. At Aldig, we provide practical retention system design solutions that consider site conditions, excavation requirements, neighbouring structures and the overall construction methodology to develop safe and efficient outcomes.

Our experienced team works closely with homeowners, builders, engineers and consultants to assess project requirements and recommend retention systems suited to each site. By considering factors such as ground conditions, access limitations, excavation depth and surrounding constraints, we help identify solutions that minimise risk and improve constructability.

From initial concept discussions through to detailed construction planning, Aldig’s approach focuses on creating retention designs that are practical, buildable and aligned with the requirements of the project. Whether supporting a complete design-and construct package or working alongside your chosen consultants, we provide the expertise needed to deliver stable.

Retention Piling

Retention piling provides essential ground support by stabilising surrounding soil before and during basement excavation. At Aldig, we deliver a range of piling solutions tailored to the specific requirements of each project, including bored piers, CFA piling, contiguous piling, secant piling and tight access systems.

These retention systems are designed to control ground movement, maintain excavation stability and protect surrounding structures, making them ideal for basement projects located near property boundaries, existing homes, neighbouring buildings and other sensitive environments.

By combining specialist piling expertise with practical construction knowledge, Aldig develops and constructs retention solutions that provide a safe and stable excavation platform for the next stages of basement construction. Whether delivered as part of a complete design-and-construct package or constructed to engineer-supplied documentation, our team provides reliable solutions suited to Melbourne’s diverse ground conditions and complex building environments.

Retention Capping Beam

Retention capping beams play a vital role in tying retention piles together, creating a strong and stable system that supports the excavation throughout construction. At Aldig, we construct reinforced concrete capping beams designed to distribute structural loads, improve structural integrity, increase stability and provide an integrated structure for the next stages of basement construction.

With a focus on quality workmanship and precision, Aldig constructs capping beams that are accurately set out, built to specification, and seamlessly integrated with the overall retention system, providing a safe, reliable and efficient foundation for basement construction.

Retention Shotcrete Walls

Retention shotcrete walls provide an effective solution for stabilising exposed excavations, forming durable basement perimeter walls and completing the retention system in preparation for the next stages of basement construction.

At Aldig, we specialise in constructing quality reinforced shotcrete walls tailored to the unique requirements of each project, combining structural performance with architectural considerations to achieve a solution that is strong, stable and visually refined.

As certified and insured Cetco waterproofing membrane installers, we can also provide integrated waterproofing solutions, giving clients confidence that their basement structure is protected from the ground up.

Through experienced construction methods and a detailed understanding of basement structures, Aldig delivers shotcrete walls that provide long-term durability, reliable performance and a high-quality finished appearance.

Aldig Advantage

What you get with Aldig basement retention packages

Aldig delivers complete basement retention packages as a single, coordinated scope, reducing trade interfaces, improving construction sequencing and providing builders with a clear pathway into the next stages of construction.

Each package is tailored to the unique requirements of the project, considering site conditions, access constraints, design complexities, challenging ground conditions, excavation depths and the structural support required to deliver a safe and effective retention solution.

By integrating retention planning with excavation requirements from the outset, Aldig helps homeowners, builders and consultants achieve greater pricing clarity, improved coordination and confidence that their project is supported by a practical, buildable solution delivered by an experienced team committed to quality outcomes.

Coordinated package delivery
A coordinated package delivery approach brings retention, foundation and structural requirements together under one experienced team, improving communication, reducing project risk creating a central point of responsibility. This ensures a seamless transition through each stage of construction, providing greater certainty, efficiency and control throughout the project.
Construction-Led Design & Buildability Advice

20+ years of specialist experience delivering complex construction and basement projects, Aldig provides practical construction advice during the planning stage to help identify risks, improve buildability and develop solutions that work in the real world.

Tight access and complex site experience

Extensive experience working with Melbourne and Victorian sites where access, neighbouring structures, sloping blocks or restricted working areas need careful planning. Our specialised equipment navigate tight access conditions, including confined areas, doorways and garages, allowing us to deliver basement and foundation solutions where traditional construction methods may not be suitable.

Practical construction sequencing

Aldig’s skilled team carefully plans equipment access, spoil removal, site logistics and the sequence of works to ensure retention construction is delivered efficiently and integrates seamlessly with the overall project programme. Our practical approach helps minimise delays, reduce site constraints and create a smoother transition through each stage of basement construction.

Clear pricing and scope

Aldig provides clearly defined retention packages, giving builders and consultants visibility of inclusions, sequencing and site requirements before construction begins.

Through early feasibility assessments and practical design-and-construct solutions, we help identify efficient construction methods, reduce risk and provide greater cost certainty throughout the project.

Strategic Planning for Successful Retention

A proactive approach to retention planning that considers site conditions, excavation requirements and construction sequencing to deliver safe and stable solutions. By controlling ground movement and providing the required structural support, Aldig helps create a secure foundation for the next stages of basement construction.

Our Process

How Aldig Delivers Basement Retention Packages

Aldig follows an experienced, practical and structured approach to delivering basement retention packages across Melbourne and Victoria. We begin by understanding the specific site conditions, project requirements and construction challenges before defining and coordinating the most suitable retention solution. From restricted-access Melbourne sites to complex designs across Victorian properties, our process focuses on identifying risks early, improving coordination and delivering a customer-focused approach that prepares the site for a safe and efficient basement construction process.
  • Initial consultation and project intake

    We begin by reviewing your drawings, geotechnical information and project requirements to develop a clear understanding of the site conditions and construction objectives. This includes assessing retention requirements, pile and socket depths, excavation depths, site access, boundary conditions and any project complexities that may influence the construction methodology. At this stage, we work with the client to determine the most suitable delivery approach; whether Aldig assists with the design development of the retention system, the whole basement or proceeds with construction based on client-supplied engineering documentation.

  • Site Assessment

    Every site presents unique challenges. We assess access limitations, neighbouring structures, ground conditions, excavation requirements and site constraints to determine the most suitable retention approach for a safe and efficient construction process.

  • Retention Package Planning & Scope Definition

    Working closely with the client, Aldig develops a clearly defined scope of works that outlines the required retention solution, project inclusions and construction requirements. This ensures all key elements are considered upfront, including retention piling, capping beam, bulk excavation, shotcrete walls and any associated works required for successful delivery. By establishing a detailed and accurate scope, we provide greater clarity around project expectations and develop a fixed-price proposal based on the agreed requirements. Our approach combines practical construction knowledge with careful planning to deliver a retention solution that is buildable, transparent and aligned with the client’s objectives.

  • Access and construction sequencing

    We coordinate machinery access, spoil removal, site entry and staging so the ground support works can be delivered efficiently and with fewer site disruptions.

  • Coordinated retention works

    Aldig delivers retention works as a single, coordinated package, ensuring each stage is carefully planned and seamlessly integrated with the overall construction program. By managing critical construction interfaces and coordinating retention activities under one experienced team, we improve efficiency, reduce project risk and prepare the site for the next stage of basement construction.

  • Ready for Next Construction Stage

    With the retention system complete, the site is stabilised, supported and ready for the next stage of construction. Whether you choose Aldig to continue delivering your complete basement or structural concrete package, or conclude our scope at the retention stage, you can move forward with confidence knowing your project is built on a professionally delivered retention solution.

Clients We Serve

Builders, Developers, Architects, Engineers and home owners.

Residential New Developments

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.

Residential Renovations

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.

Commercial buildings

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.

Why Aldig

What Sets Us Apart

Decades of Specialist Experience

With years of proven results in Melbourne’s basement and concrete structure construction, Aldig brings expertise, quality and reliability to every project.

Transparent, Fixed Pricing

Backed by experience, Aldig uses proven data and costing models to ensure your project is accurately costed—minimising the risk of costly blowouts.

Tight Access & Complex Site Solutions

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.

Complete Waterproofing Options

Aldig is an accredited and fully insured waterproofing contractor, committed to quality and compliance.

Skilled In-House Workforce
Our projects are handled by Aldig’s own expert team, guaranteeing quality control and seamless, on-time delivery.
Tailored Solutions for Your Project
Every build is unique. We listen, plan, and deliver practical solutions to make your vision a success.

Testimonials

Trusted by Homeowners and Builders

Feedback from our clients highlights the care, coordination and technical skill behind Aldig’s basement and structural concrete projects. These testimonials reflect real experiences from homeowners, builders and developers who have trusted Aldig with complex excavation support and retention works across Melbourne and Victoria. Their words speak to our commitment to practical problem-solving, clear communication, safe site preparation, and reliable delivery from planning through to site works.

FAQs

Basement Design & Feasibility – Common Questions

A basement retention package is a coordinated set of works that prepares and supports a site for basement excavation. It may include retention piling, capping beams, shotcrete walls, and excavation support, with the scope tailored to site access, depth, boundaries, and ground conditions.
Retention is often required for deep excavations, sites near property boundaries or neighbouring homes, or where ground conditions are challenging. It creates a controlled excavation area and supports safer site preparation.

If basement retention is not planned properly, the excavation can become unsafe and unstable. Poor planning may lead to soil movement, wall collapse, damage to neighbouring structures, water ingress, site delays and higher construction costs.

Basement retention is designed to support the surrounding ground before and during excavation. Without the right engineering, sequencing and site preparation, pressure from soil, nearby buildings, groundwater or site loads can create serious risks. A properly planned basement retention package helps protect workers, neighbouring properties and the overall build, while reducing the chance of costly redesigns, emergency works or compliance issues.

Aldig provides basement retention packages for Melbourne sites, including tight-access residential blocks, sloping properties, boundary-constrained projects, and sites near neighbouring structures.
Retention piling holds the surrounding soil in place during deep excavation. It is commonly used where boundaries, nearby buildings, or excavation depth require enhanced ground support.
A retention capping beam is a structural element installed across the top of retention piles. It connects the piles, strengthening and stabilising the retention system.
Capping beams distribute loads across retention piles and improve the performance of the retaining system. This provides more reliable support as basement construction progresses.
Shotcrete walls stabilise exposed excavation faces and provide additional support where needed. They are often used in conjunction with piling and capping beams within a coordinated basement retention system.
Shoring typically refers to temporary support during construction, while basement retention refers to temporary or permanent systems that hold the ground in place during excavation. Both contribute to excavation support and site stability.
No. A retaining wall is a standalone structure that holds back soil. Basement retention is broader and may include piling, capping beams, shotcrete walls, and other support works required for basement excavation.
The appropriate retention system depends on excavation depth, site access, soil conditions, neighbouring structures, and boundary constraints. Basement excavation may require retention piling, capping beams, shotcrete walls, shoring, piled retention systems, or a combination of these methods.
Basement retention should be planned before excavation. Early planning allows homeowners, builders, and consultants to assess access limits, boundary conditions, ground risks, and required retention works.
Key factors include excavation depth, soil type, groundwater, site access, neighbouring structures, property boundaries, machinery movement, spoil removal, and construction sequencing.
Aldig works with tight-access Melbourne basement sites, where machinery access, spoil removal, boundary constraints, and nearby structures require careful planning during site preparation.
Aldig can use existing engineering plans or drawings to assess excavation depth, site access, boundary conditions, and the required retention system, ensuring alignment with the overall construction program.
Aldig coordinates the retention package with site requirements, engineering direction, and the overall construction program. This provides builders, engineers, and consultants with a clearer scope during excavation and early construction.
A defined retention package clarifies key inclusions, sequencing, site requirements, and necessary ground support works. This reduces confusion between trades and supports more accurate pricing.

Contact Aldig with your project location, available plans, excavation requirements, and site conditions. Our team will review your needs, confirm the likely scope of retention, and deliver a basement retention package specifically designed for your project needs.

Planning a Basement Excavation?
Speak with Aldig’s Basement Retention Specialists

Partner with Aldig’s team to develop a basement retention solution tailored to your project. Whether you require design and construction or construct only services, we work closely with homeowners, builders, developers and consultants to deliver practical retention systems that improve site stability, reduce construction risk and prepare your project for successful basement construction.

From initial planning and retention piling, capping beams, bulk excavation through to shotcrete walls and coordinated package delivery, Aldig provides the expertise and experience to deliver safe, efficient and reliable basement retention solutions for every site.

Send Your Enquiry

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.

This field is for validation purposes and should be left unchanged.
Name(Required)

Retention Packages

Send Your Enquiry

This field is for validation purposes and should be left unchanged.
Name(Required)