DIY Retaining Walls vs. Professional Installation: What Homeowners Need to Know Before Building

December 18, 2023

A retaining wall is more than a decorative feature—it’s a structural system designed to support soil, prevent erosion, manage drainage, and create usable space in your yard. With so many online tutorials and DIY videos available, some homeowners are tempted to build retaining walls themselves. But retaining walls—especially in Michigan’s freeze–thaw climate—require engineering, skill, and precise installation to perform safely and last for decades.

As a result, many DIY walls fail within the first few years, leaning, bowing, cracking, or collapsing entirely. Professional installation, on the other hand, ensures stability, longevity, and a clean, polished appearance that adds lasting value to your home.

In this blog, we’ll break down the differences between DIY retaining walls and professional installation so you can make an informed decision for your Oakland County landscape.

Why Homeowners Attempt DIY Retaining Walls

DIY retaining walls are appealing for several reasons:

✔ Lower upfront cost

✔ Feeling of accomplishment

✔ Creative control

✔ Convenience of weekend work

However, what many homeowners don’t realize is that retaining walls require far more knowledge and preparation than they appear to on the surface.

The Hidden Challenges of DIY Retaining Walls

Retaining walls fail more often than any other hardscape project—especially when installed by inexperienced hands. Here’s why:

1. Poor Base Preparation

A successful retaining wall must begin with a deep, compacted gravel base. DIY installers often:

  • Dig too shallow
  • Skip compaction
  • Use the wrong base material

This leads to sinking, shifting, and instability.

2. Incorrect Drainage Systems

Drainage is the most essential part of any retaining wall. Without proper drainage:

  • Water pressure builds behind the wall
  • The soil becomes saturated
  • The wall begins to lean or bulge
  • Eventually, the wall fails entirely

Many DIY walls lack:

  • Drain pipes
  • Gravel backfill
  • Geogrid reinforcement
  • Proper grading

A retaining wall without drainage is a ticking time bomb.

3. No Engineering for Wall Height

Even small walls can require reinforcement. DIY installers often:

  • Stack materials without structural support
  • Ignore step-backs or batter
  • Fail to include geogrid
  • Build walls too tall for their materials

In Michigan, where frost heave is common, this is especially risky.

4. Choosing the Wrong Materials

Not all stones, blocks, or boulders are suitable for retaining walls. DIY builds frequently use:

  • Decorative blocks not meant for load-bearing
  • Boulders without proper footing
  • Stones with inconsistent sizing

This results in unstable walls.

5. Lack of Professional Tools

Professional wall installers use:

  • Plate compactors
  • Laser levels
  • Excavators
  • Block splitters
  • Compaction equipment
  • Grading tools

DIY installers often rely on hand tools, which aren’t sufficient for a wall's structural demands.

Why Professional Retaining Wall Installation Is Worth It

Driftwood Landscape builds retaining walls designed to withstand Michigan weather and soil conditions for decades.

Here’s what you get with a professional installation:

1. Proper Excavation & Base Construction

Professionals excavate deep enough to:

  • Create a stable foundation
  • Compensate for frost depth
  • Ensure long-term stability

A solid base is the foundation of a long-lasting wall.

2. Correct Drainage Systems

Driftwood installs:

  • Perforated drain pipes
  • Granular backfill
  • Filter fabric
  • Proper grading
  • Weep channels (as needed)

This prevents water buildup—the #1 cause of wall failure.

3. Engineering for Wall Height & Load

Whether your wall is:

  • Holding back a hillside
  • Supporting a patio
  • Terracing your yard
  • Creating levels

…the structure must be engineered correctly. Driftwood ensures:

  • Step-backs for stability
  • Appropriate geogrid use
  • Correct block type
  • Weight distribution analysis

This creates a safe, long-lasting retaining system.

4. Clean, Level, Professional Appearance

Professionally installed walls feature:

  • Tight joints
  • Straight lines or intentional curves
  • Uniform stone or block placement
  • Smooth transitions into the landscape

DIY walls often show unevenness or leaning because the base isn’t perfectly level.

5. Materials Selected for Michigan Conditions

Driftwood chooses retaining materials that excel in:

  • Freeze–thaw cycles
  • Moisture exposure
  • Soil pressure
  • Long-term durability

This ensures your wall ages gracefully.

6. Long-Term Value & Warranty

A professionally built retaining wall:

  • Lasts decades
  • Adds property value
  • Requires little maintenance
  • Comes with installation guarantee

DIY walls may need repair—or complete replacement—within a few years.

Common Signs a DIY Retaining Wall Is Failing

If your existing wall shows any of the following, it may require professional repair or rebuilding:

❌ Bulging in the center

❌ Leaning forward

❌ Large cracks

❌ Blocks separating

❌ Soil spilling through gaps

❌ Drainage water pouring over the wall

❌ Wall sinking or collapsing

These issues indicate structural failure caused by improper construction.

Which Retaining Wall Material Is Best for Your Yard?

Driftwood installs all major types of retaining walls, including:

Boulder Walls

✔ Nearly indestructible
✔ Natural appearance
✔ Ideal for large slopes

Limestone Walls

✔ Clean, elegant look
✔ Strong and long-lasting
✔ Great for front yard accents

Concrete Block Walls

✔ Modern appearance
✔ Engineered systems
✔ Excellent for tall or load-bearing walls

Natural Stone Walls

✔ Beautiful organic texture
✔ Works well with gardens
✔ High-end appeal

Ready to Build a Safe, Beautiful Retaining Wall?

Schedule Your Free Consultation Today

Driftwood Landscape offers expert retaining wall installation built to last through Oakland County’s challenging climate.