Looking for a durable, attractive, and low-maintenance retaining wall solution? 

Allan Block retaining walls are one of the most trusted retaining wall systems used throughout Vancouver, Richmond, Surrey, Burnaby, Coquitlam, Langley, and the Lower Mainland.

Whether you're replacing a failing timber retaining wall, stabilizing a slope, creating usable outdoor space, addressing drainage issues, or building a large engineered retaining wall, Allan Block retaining walls provide exceptional long-term performance and curb appeal.

Terraform Construction Ltd. specializes in Allan Block retaining wall installation, Allan Block retaining wall repair, engineered retaining wall construction, drainage improvements, and retaining wall replacement for residential, strata, and commercial properties throughout Metro Vancouver.

Our retaining wall team works with homeowners, strata councils, property managers, developers, and commercial property owners seeking a retaining wall system that combines structural strength, attractive design, and long-term value.

Speak with our team about your project today.

An Allan Block retaining wall is an engineered segmental retaining wall system constructed using interlocking concrete retaining wall blocks designed to manage grade changes, retain soil, improve drainage, and provide long-term slope stabilization.

When installed correctly with proper drainage, structural backfill, and base preparation, Allan Block retaining walls commonly provide 50+ years of service life.

Yes. Allan Block systems can be engineered using geogrid reinforcement and structural design calculations for taller retaining walls, challenging soil conditions, commercial developments, and strata projects.

Absolutely. Proper drainage is one of the most important components of any retaining wall system. Drain rock, drain tile, filter fabric, and positive water discharge help prevent hydrostatic pressure and premature wall failure.

For many applications, yes. Allan Block retaining walls generally offer a longer lifespan, lower maintenance requirements, improved structural performance, and better long-term value than traditional timber retaining walls.

Allan Block is one of the most recognized and widely used retaining wall systems in North America. The system utilizes precision-manufactured concrete retaining wall blocks that interlock together to create retaining walls capable of handling both residential and engineered applications.

Unlike traditional poured concrete retaining walls, Allan Block systems offer flexibility while maintaining exceptional strength. This flexibility allows the wall to better accommodate minor soil movement and seasonal changes while maintaining structural integrity.

Allan Block retaining walls are commonly used for:

• Backyard Retaining Walls

• Garden Retaining Walls

• Raised Planter Beds

• Landscape Terracing

• Slope Stabilization

• Waterfront Properties

• Hillside Properties

• Strata Developments

• Commercial Properties

• Engineered Retaining Walls

Because of their appearance, durability, drainage performance, and engineering capabilities, Allan Block retaining walls have become one of the most popular retaining wall choices throughout British Columbia.

Allan Block is one of the most recognized and trusted retaining wall systems in North America. Designed using precision-manufactured concrete retaining wall blocks, Allan Block systems create durable, attractive, and structurally sound retaining walls capable of supporting both residential and engineered applications.

Unlike traditional poured concrete retaining walls, Allan Block retaining walls utilize interlocking segmental retaining wall blocks that work together to create a flexible structure capable of accommodating minor soil movement while maintaining long-term stability.

Allan Block retaining walls are commonly used for:

✔ Backyard Retaining Walls

✔ Raised Garden Beds

✔ Landscape Terracing

✔ Slope Stabilization

✔ Waterfront Properties

✔ Hillside Properties

✔ Strata Developments

✔ Commercial Properties

✔ Engineered Retaining Walls

✔ Retaining Wall Replacement Projects

Because Allan Block systems combine strength, appearance, drainage performance, and engineering flexibility, they have become one of the most popular retaining wall choices throughout Vancouver, Richmond, Surrey, Burnaby, Coquitlam, Langley, and the Lower Mainland.

One of the biggest advantages of Allan Block retaining walls is their exceptional lifespan. When installed correctly with proper drainage, base preparation, and structural backfill, Allan Block retaining walls commonly provide 50 years or more of service life.

Unlike timber retaining walls, Allan Block systems are not susceptible to rot, insect damage, or deterioration caused by constant moisture exposure.

Allan Block retaining walls are available in multiple colours, textures, and block styles, making them suitable for both modern and traditional landscape designs.

Whether you're creating a contemporary outdoor living space or a natural landscape environment, Allan Block retaining walls provide a clean, professional appearance that enhances curb appeal.

Allan Block retaining walls can be designed as:

• Straight Walls

• Curved Walls

• Terraced Walls

• Raised Planter Beds

• Seating Walls

• Garden Walls

• Stair Systems

• Large Engineered Retaining Walls

This design flexibility allows property owners to customize retaining wall systems to suit their property and project goals.

Proper drainage is critical to retaining wall longevity.

Allan Block retaining walls integrate extremely well with drainage systems, helping reduce hydrostatic pressure and improving long-term wall performance.

For larger retaining walls and more demanding site conditions, Allan Block systems can be engineered using geogrid reinforcement and structural design calculations.

Unlike wood retaining walls that may eventually require replacement or repairs, Allan Block retaining walls require very little ongoing maintenance.

Even the highest-quality retaining wall blocks can fail if they are installed incorrectly. Proper excavation, drainage, compaction, and structural backfill are critical to long-term retaining wall performance.

At Terraform Construction Ltd., every Allan Block retaining wall project begins with a detailed site assessment.

We evaluate:

• Existing grades

• Soil conditions

• Drainage requirements

• Site access

• Wall height requirements

• Engineering requirements

• Long-term performance expectations

We excavate the retaining wall footprint and remove unsuitable materials.

A compacted granular base is installed to provide a stable foundation for the retaining wall.

Drain tile, drain rock, and filter fabric are installed to help reduce hydrostatic pressure behind the wall.

Blocks are carefully installed and aligned to ensure proper structural performance and appearance.

Approved backfill materials are placed and compacted behind the wall.

The site is graded, cleaned, and prepared for landscaping.

A properly installed Allan Block retaining wall should provide decades of structural performance and visual appeal.

Homeowners throughout Metro Vancouver choose Allan Block retaining walls to improve drainage, create usable outdoor space, stabilize slopes, and increase property value.

Common residential applications include:

Transform steep or difficult-to-use areas into level outdoor living spaces.

Create attractive planting areas while improving drainage and landscape organization.

Manage significant grade changes while enhancing the overall appearance of your property.

Reduce erosion and improve long-term landscape stability.

Define patios, fire pit areas, seating spaces, and entertainment areas.

Whether you're replacing a failing retaining wall or building a new retaining wall as part of a landscape renovation, Allan Block provides one of the most durable solutions available.

Terraform Construction Ltd. regularly works with strata corporations, property managers, condominium developments, and townhouse complexes throughout Metro Vancouver.

Strata councils often select Allan Block retaining walls because they offer:

✔ Long Service Life

✔ Low Maintenance Costs

✔ Attractive Appearance

✔ Engineering Flexibility

✔ Excellent Drainage Performance

✔ Strong Long-Term Value

Common strata retaining wall applications include:

• Parking lot retaining walls

• Walkway retaining walls

• Landscape terraces

• Common area improvements

• Property boundary walls

• Slope stabilization

• Erosion control

• Retaining wall replacement projects