Retaining Walls Thunder Bay | Engineered Concrete & Block | Concrete Solutions

ENGINEERED EARTH RETENTION

Why Choose Concrete Solutions for Retaining Walls in Thunder Bay

Retaining walls in Northwestern Ontario face punishing conditions: lateral earth weight, saturated spring clay soils, and brutal frost cycles. Without proper gravel backfill, geogrid anchoring, and continuous drainage, poorly built walls bow, crack, or overturn within just a few seasons. At Concrete Solutions, we engineer and construct retaining structures built to endure for decades.

We build poured reinforced concrete walls, architectural segmental retaining blocks (such as Allan Block), and tiered garden slope systems. Every wall incorporates non-woven geotextile separation, washed 3/4" clear stone drainage corridors, and perforated weeping tile outlets to eliminate hydrostatic pressure behind the wall face.

What Sets Us Apart

Engineered drainage with clear stone & weeping tile
Geogrid soil reinforcement for high surcharge loads
Poured reinforced concrete & modular block solutions
Permit coordination & structural engineering compliance

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Engineered retaining wall construction in Thunder Bay by Concrete Solutions

HOW WE WORK

Our Retaining Wall Engineering Process

Every retaining wall is constructed from a solid footing up, engineered against hydrostatic pressure.

01

Slope & Surcharge Analysis

We calculate bank slope, soil type, and above-wall weight loads to determine footing depth, setback angles, and drainage routes.

02

Trenching & Base Compaction

We excavate into stable subgrade and mechanically compact a level Granular A crushed stone footing pad below finished grade.

03

Wall Erection & Geogrid

Blocks or formwork are laid plumb and level, pinning high-tensile geogrid reinforcement sheets into the backfill bank.

04

Clear Stone & Drain Tile

We install perforated weeping tile, backfill with clean 3/4" clear aggregate wrapped in filter fabric, and cap the wall.

OUR WORK IN ACTION

Recent Retaining Wall Projects

Explore real photos of our recent projects completed across Thunder Bay and Northwestern Ontario.

PROJECT SHOWCASETHUNDER BAY, ON

Engineered concrete retaining wall in Thunder Bay

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Engineered Wall

Engineered concrete retaining wall in Thunder Bay

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CLIENT REPUTATION

What Our Clients Say

Read real feedback from homeowners, builders, and businesses across Thunder Bay and Northwestern Ontario.

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Landon

Google ReviewBasement In-Floor Pour

“Concrete solutions recently did our basement infloor heating and concrete pour. Great work, job turned out nice and floors are toasty warm. Thank you”

AB

Angelina Benincasa

Google ReviewConcrete Sidewalk

“Very responsive and friendly. Talked me through the process, went over various options. Did a beautiful job on my sidewalk. Highly recommend!”

SI

Shelley Isleifson

Google ReviewStamped Patio & Sidewalk

“Great job replacing sidewalk and added a patio at back loved the idea of stamped concrete and worked out beautifully”

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Philippe Fournier

Google ReviewWorkmanship & Pricing

“The absolute best price and workmanship around thank you concrete solutions for your time and for doing such a great job”

TC

Trevor Cava

Google ReviewAttention to Detail

“Wonderful attention to detail. Took the time to explain the process. Really passionate about their work.”

COMMON QUESTIONS

Frequently Asked Questions

Key considerations on retaining wall heights, building permits, materials, and drainage in Thunder Bay.

Do I need a building permit or engineering drawings for a retaining wall?

Under the Ontario Building Code, retaining walls exceeding 1 meter (approximately 3.3 feet) in exposed height or walls carrying a surcharge load (such as a driveway or structure above) require engineered design and a municipal permit. We manage the permitting and engineering requirements on your behalf.

What is the primary cause of retaining wall failure in Thunder Bay?

Hydrostatic water pressure. When water collects behind a wall without adequate drainage, saturated soil expands and exerts tremendous lateral force. In winter, this moisture freezes and pushes the wall outward. We prevent this by installing clean 3/4" clear stone backfill and continuous perforated weeping tile.

Should I choose poured concrete or segmental retaining block?

Both deliver exceptional longevity when properly built. Segmental blocks (such as Allan Block) provide versatile curving lines and stone aesthetics with dry-stacked flexibility. Poured concrete walls deliver monolithic structural load capacity, ideal for tight property lines and heavy vehicular driveways.

Can retaining walls help reclaim sloped or eroding yard space?

Yes. Terracing a steep hill with retaining tiers converts steep, unusable land into level recreational lawns, functional parking areas, or beautiful multi-level garden patios while permanently halting soil erosion.

COMPREHENSIVE EXPERTISE