How Much Does a Retaining Wall Cost in Denver, CO?


Retaining walls is a crucial investment for property owners in Denver, CO., especially given the region's varying terrain and soil conditions. Understanding the cost factors associated with retaining wall installation can help you make informed decisions. The cost spectrum for retaining wall installation in Denver can vary widely based on several factors, including size, materials used, and additional features.

Cost of Retaining Wall Installation in Denver, CO.

Homeowners retain their walls for different purposes. But for most people in Denver, CO, retaining walls can present a unique way for eye aesthetics. Besides captivating functions, they will also add value to your property and they are usually made from affordable, high-quality materials.

Typically, you can retain walls in Denver, CO to increase your home’s value, and they are earth-friendly, durable, and are available in several designs that can match each homeowner’s specific needs. Apart from the rock types and other materials to make retaining walls, other methods are also available to construct your retaining wall. You can stone-filled mesh fit a gabion wall shape, a traditional stone-and-mortar wall, or a dry stack wall that is constructed from stones but without a mortar and can be moved.

In Denver, the cost of retaining and maintaining walls can be significantly low. After constructing your desire, you don’t have to worry about keeping it up, only that if you create a dry wall and plan to shift the stones around from time to time. The good thing about Denver retaining walls is that they are efficient, and if created accordingly, they can withstand a substantial amount of weight. Additionally, retaining a wall can help to hold back water or soil for several years without need for maintenance. In most cases, retaining walls crafted from sustainable materials are affordable, attractive and long-lasting just like standard walls.

Low End

At the lower end of the spectrum, the cost of retaining a basic wall starts at around $1,000 to $3,000 for smaller projects. These types of walls typically utilize cheap materials and straightforward installation methods. That means no costly process of acquiring and retaining them. A wood retaining wall can cost you around $20 to $25 per square foot which means a 50-square-face-foot wall can cost $1,000 to $1,300. But for a modern type of retaining wall created, a precast interlocking concrete stone block is the perfect choice since it locks together without using mortar. It costs somewhere between $15 to $30 or more per square foot or roughly $750 to $1,500 for 30 inches and 20 feet long walls.


For a medium-sized wall project covering about 175 sq, you can expect to spend between 3,000 to $8,000. The average wall projects are crafted from mid-range materials and conventional installation processes.

High End

The cost of retaining a wall on the higher end runs from $8,000 to $20,000 or more and the wall usually is constructed with premium materials like natural stones, intricate designs or challenging site conditions. Costs can also climb if extensive site preparation or a complicated drainage system is required.

Retaining Wall Cost Estimator by Size

Most retaining walls can cost around $20 to $53 per square foot, which translates to an average of $33 per square foot. To determine a retaining wall’s cost per square foot, you multiply its length and width both in feet.

42 sq. ft. – Retaining a small wall of about 42 sq. ft can cost you approximately between $1,500 to $3,000, depending on various facets such as material used and site conditions – since some sites can be more challenging than others.

175 sq .ft. – 175 square footage is a medium-sized wall and the project cost per square foot can run from $4,000 to $7,000 factoring in the labor cost and materials involved.

350 sq. ft. – Larger walls can cover an average of 350 square feet and the cost of retaining it can range somewhere around $7,000 to $12,000 or even more especially if it involves premium or complex designs.

Other Factors That Affect Cost

Retaining a wall in Denver, CO can be determined by various facets including building materials, labor cost, land preparation, and wall type.

Building Material: The different types of materials available such as boulders, railroad ties, concrete, interlocking blocks, or gabion walls can significantly impact the cost because each comes with a unique price tag.

Wall Type: Retaining a wall depends on the type of wall and how it was constructed. Each retaining walls are crafted with a distinct method and related costs can affect the cost

Placement: Some sites are not easily accessible which can greatly influence labor costs. Factors like terrains, difficult-to-reach areas or sloped landscapes may require more effort and tools which may increase overall expenses

Land Preparation: Retaining walls also involves other activities such as grading, excavation, and soil stabilization which adds to the total cost of installation.

Waterproofing: Adding a waterproof membrane to your wall can enhance the longevity of the retaining wall but it comes with extra costs

Reinforcement: Some conditions like wall height or soil condition may require reinforcements such as geogrids or steel bars to strengthen the retaining wall

Drainage: Often water can build up behind the wall which can damage the retaining wall – and erecting proper water drainage solutions can help prevent water buildup, and mitigate the risk of erosion and property damage.

Retaining Wall Installation Quotes Are Included/Not Included

Including Quotes

Asking for quotes from several reputable Denver retaining wall contractors is the best way to get an accurate estimate for your specific project. They can factor in all the variables mentioned above and provide a tailored price.

Excluding Quotes

While this guide offers ballpark figures, remember these are just starting points. Material prices can fluctuate, and your project's unique needs might differ.

Types of Retaining Walls and Their Costs

If you’re thinking of retaining a wall and want to know the types of retaining walls available and their diverse costs, here is a list of them:

Here's a quick reference for common retaining wall materials in Denver:

Boulder: $40 - $80+ per sq ft (depending on size and variety)

Railroad Tie: $20 - $40 per sq ft (treated wood, may not be allowed in all areas)

Concrete: $40 - $80+ per sq ft (poured concrete or blocks)

Interlocking Block: $30 - $60+ per sq ft

Block Retaining Wall: $20 - $50+ per sq ft (depending on block type)

Gabion Wall: $40 - $70+ per sq ft (wire cages filled with rocks)

Retaining walls can be a valuable addition to your Denver property, but it's important to be prepared for the investment. By considering the cost tiers, size variations, and additional cost factors, you can get a good starting point for budgeting. Remember, quotes from qualified contractors are essential for a truly accurate estimate. With careful planning and informed decision-making, your retaining wall project can become a reality, adding beauty, function, and potential value to your Denver landscape.

Frequently Asked Questions

It involves a lot of facets such as material used, labor, site preparation, and other additional features like reinforcements and drainage systems. Also, the complexity of the retaining wall project, terrain conditions, and the type of materials used influence the overall cost.

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