So, what’s the bottom line about the cost to repair a retaining wall? A simple, small wall can cost as little a $800 to $1,000, while an involved project with backfill, labor and excavation can cost upwards of $20,000.

Similarly, Are retaining walls covered under homeowners insurance?

21% of home insurance policies cover damage to retaining walls as a result of a storm.

Additionally, How much does it cost to reset a retaining wall? Cost to Replace Retaining Wall

Service Cost
Land Grading


$900 – $3,000 total


$160 – $230 per day
Materials $3 – $40 per sq. ft.
Labor $50 – $75 per hour

What is the cheapest retaining wall?

What is the cheapest retaining wall material?

  • Treated pine and is the least expensive material. …
  • Hardwood is more expensive than treated pine. …
  • Railway sleepers are another – slightly more expensive – option and are built to withstand ground and water contact.
  • Concrete sleepers are more expensive.

How much should I charge to build a retaining wall?

On average, building a retaining wall costs $23 per square foot. For the more budget-conscious, retaining wall prices average at $19 per square foot. On the upper end, retaining wall costs are around $50 per square foot.

Is a retaining wall considered a structure?

A retaining wall is a strong structure that is made to keep a hill, slope or mound of earth in place. … Due to the weight of the earth behind the wall, a retaining structure must adhere to high construction standards.

When should you replace a retaining wall?

Large, noticeable cracks is a sign that your retaining wall needs to be replaced. Separation of part of the wall from the main structure is a sign that your wall might collapse. Depending on the severity, you’ll want to repair or replace it. Leaking water is a sign of drainage problems.

What is the easiest retaining wall to build?

For the average do-it-yourselfer, building a retaining wall is easiest when using masonry blocks that will be stacked no taller than three feet, with no mortar binding the stones or concrete members.

How do you save money on a retaining wall?

If you like the look of concrete, you can save money by choosing interlocking concrete blocks, which can cost as little as $15 per square foot. The wall will be just as strong and just as durable, but you may be able to spend half as much on the materials. Interlocking concrete is also the best option for durability.

How long do gabion retaining walls last?

A gabion wall’s lifespan depends on the type of wire used and the amount of salt spray it is exposed to. “Something that is very coastal tends to rust out like any metal a little quicker,” Jurgensen says. “The further inland you go the longer these tend to last but 50 to 100 years is the typical lifespan.”

How much is a retaining wall per linear foot?

Generally speaking, the California average cost for a retaining wall is anywhere between $300-$900 per linear foot.

How do you calculate the square footage of a retaining wall?

Calculate the Wall’s Square Footage

Multiply the length and adjusted height measurement to determine the square footage of the retaining wall. Multiply the square footage number by 144 to find the size of the wall in square inches.

Do I need a structural engineer for a retaining wall?

In most states, retaining walls taller than four feet must be designed by or approved by a qualified, licensed professional engineer. It is important to check with and adhere to local building codes prior to design and construction.

What is classified as a retaining wall?

A retaining wall is a structure built to retain a difference in ground level. While a retaining wall can serve as the footing for a fence, the wall itself is not considered to be a fence and is covered by different laws.

Does a retaining wall need planning permission?

The principal characteristic of a retaining wall is being able to withstand the pressure exerted by the retained material, which is usually soil. … Planning permission is required if the wall is to be over 1-metre high and next to a road or pathway; or over 2-metres high elsewhere.

How do you tell if a retaining wall is failing?

The three most common signs of a retaining wall in distress are (1) Leaning; 2) Cracking and 3) Bulging of the Wall or Segments. These are telltale indicators of a wall losing its fight and at risk of collapsing at any moment, including the worst possible moment: the middle of a rainstorm.

How much does it cost to replace a retaining wall?

You’ll pay

between $250 – 550 per square metre

for a retaining wall in Sydney. This price includes both supply and installation, though you will typically get a quote that breaks each out for you.

The cost of retaining wall materials in Sydney.

Retaining Wall Material Price Per Square Metre


$30 – 220

30 sept. 2021

WHY DO Retaining walls fail?

A retaining wall will fail when it is unable to withstand the force on it created by the soil behind it. … Water is heavy, and as it builds up in the soil behind the wall the force acting on the wall dramatically increases. At some point, that force may exceed the capacity of the wall and cause the wall to fail.

What is the strongest type of retaining wall?

Concrete and Masonry Retaining Walls

Poured concrete is the strongest and most durable choice for retaining walls. It may also be carved and formed to look like mortared stone depending on your taste.

What can I use instead of a retaining wall?

  • Reinforced Soil Slopes.
  • Natural Stone Walls.
  • Wooden Timbers.
  • Gabion Walls.
  • Soil Bioengineered Walls.

Does a 2 foot retaining wall need drainage?

These walls need a drainage system regardless of the wall height. If there are poor draining soils such as clay behind the wall, there needs to be drainage incorporated the wall system. Clay when wet is very weak, so it is essential to provide a way for water to escape from behind the wall.

How deep should a retaining wall be?

To keep the bottom row of blocks from pushing outward, bury the lowest section of a retaining wall. The general rule of thumb is to bury about one-eighth of the height of the wall. For example, if your wall will be three feet (36 inches) tall, the first course of blocks should start five inches below soil level.

Should you use landscape fabric behind retaining wall?

Landscape fabric is thin and sturdy and is a simple way to preserve a retaining wall’s construction. Dig a 6- to 8-inch wide trench immediately behind the retaining wall with a shovel. Dig slowly and carefully to avoid putting added pressure on the wall and causing it to topple over. … Backfill the trench will gravel.