Question 1

What is a precast concrete retaining wall?

Accepted Answer

Precast concrete retaining walls are made from factory-manufactured concrete blocks assembled on site. They are engineered for strength, consistency, and durability — ideal for both residential and commercial applications.

Question 2

How high can a precast concrete retaining wall be built?

Accepted Answer

With the large block system, precast concrete walls can be built to virtually any height required. For walls over 1 metre in Ontario, a building permit is typically required and we advise on local requirements.

Question 3

What is the difference between large block and small block precast concrete?

Accepted Answer

Large block systems use heavier, bigger units that provide maximum retainment for steep slopes and tall walls. Small block systems use a more refined unit, often with natural stone coping on top, offering a balance of structure and curb appeal at a lower cost.

Question 4

How long does a precast concrete retaining wall last?

Accepted Answer

A properly installed precast concrete retaining wall with adequate drainage can last 50 years or more. The concrete blocks are resistant to freeze-thaw cycles common in Ontario winters.

Question 5

Do precast concrete walls require drainage?

Accepted Answer

Yes — all retaining walls require proper drainage behind them to prevent hydrostatic pressure buildup. We install drainage aggregate and weeping tile as part of every retaining wall project.

Question 6

What areas do you serve for precast concrete retaining walls?

Accepted Answer

We install precast concrete retaining walls throughout Oshawa, Whitby, Ajax, Pickering, Clarington, and the broader Durham Region.