Retaining Wall Construction, Repair, and Replacement

We can build beautiful, functional, retaining walls.

We Build, Repair, and Replace Retaining Walls
We are your Longmont, Colorado retaining wall specialists!

Retaining walls are an exceptional addition to any landscape, particularly if your property features a natural slope. With the construction of a retaining wall, you can reclaim lost space and transform previously unusable terrain into functional outdoor areas. These walls serve as sturdy barriers, holding back soil and earth to create level spaces for various purposes. From the construction of stunning garden beds and lush lawns to the establishment of inviting patios, outdoor cooking areas, and convenient parking areas, the possibilities are endless.

Frontier Stone specializes in the construction of segmental retaining walls that combine functionality with aesthetic appeal. Our expert team has the knowledge and experience to design and build retaining walls using a variety of high-quality materials. Whether you prefer the natural charm of rock and boulders, the timeless elegance of brick, or the durability of concrete block, we have the expertise to bring your vision to life.

With Frontier Stone, you can expect meticulous craftsmanship and attention to detail in every retaining wall project. We understand the importance of structural integrity, ensuring that our walls are built to withstand the pressures of the surrounding terrain while providing a beautiful backdrop for your outdoor space. Our goal is to create durable, long-lasting retaining walls that enhance the beauty and functionality of your landscape.

Take advantage of the untapped potential of your sloping property with a professionally constructed retaining wall by Frontier Stone. Let us transform your outdoor space, maximizing its usability and creating a visually stunning environment. Contact us today (303) 472-6790 to discuss your project, and let our skilled team turn your landscape vision into a reality.

Why Do You Need Retaining Walls On Your Property?

  • Are you concerned about soil erosion wreaking havoc on your property, endangering its stability and beauty? A professionally constructed retaining wall can be your ultimate solution.
  • Has your existing retaining wall fallen into disrepair, demanding immediate attention and skilled reconstruction?
  • Do you dream of transforming your sloped property into a captivating landscape masterpiece, creating visually stunning terraces and level areas?
  • Are you yearning to craft a new outdoor living space where you can entertain, relax, and embrace the beauty of your surroundings?

Frontier Stone is a hardscaping contractor based out of Longmont, Colorado and serving Boulder County and Weld County and the surrounding areas.  We specialize in designing and building functional retaining walls for property owners looking to landscape their naturally sloped property.  From a 40′ foot long curved block retaining wall to hold back earth around the edge of your home to larger, more complicated, retaining walls for your terraced property.  The team at Frontier Stone will be able to provide you with a retaining wall solution that will benefit your specific property.

Construction Of New Segmental Retaining Walls

At Frontier Stone, we are experts in constructing exceptional segmental retaining walls. The advantages of choosing segmental retaining walls are numerous and contribute to an outstanding outdoor space. These walls not only provide aesthetic appeal but also offer design flexibility, cost-effectiveness, ease of installation, and remarkable durability.

One of the significant benefits of segmental retaining walls is their aesthetic appeal. We understand the importance of creating a visually pleasing environment, and segmental walls provide a harmonious blend of functionality and beauty. With a wide range of design options available, we can customize the wall to complement your landscape.

Flexibility in design is another key advantage of segmental retaining walls. We work closely with you to understand your vision and design preferences. Whether you desire a contemporary look or a timeless charm, segmental walls offer the flexibility to create the perfect style that aligns with your unique taste.

In addition to their visual appeal and design versatility, segmental retaining walls offer economic advantages. These walls are cost-effective compared to other options while providing excellent structural integrity. With Frontier Stone, you can have a durable and long-lasting retaining wall without compromising your budget.

The ease of installation is another standout feature of segmental retaining walls. As pre-engineered systems, they streamline the construction process. This means that the wall can be built according to your project specifications without the need for extensive architectural or engineering designs. Our team can construct the wall to meet engineering requirements, ensuring compliance and safety. If necessary, we can also involve a qualified engineer to review and approve the project, especially for walls with specific height or size considerations.

Retaining Walls & Building Permits in Boulder County and Weld County, Colorado

For retaining walls in Weld County and Boulder County, specific regulations apply to ensure structural integrity and safety. Retaining walls that are under 3 feet in height can be built without a permit or any engineering requirements.  Retaining walls that exceed a total height of 3 feet (measured from the top of the wall to the bottom of the footer) or are situated on slopes with a gradient of 15 percent or greater must be designed by a licensed engineer in the state of Colorado. This requirement ensures that these critical structures meet engineering standards and considerations.

At Frontier Stone, we are very familiar with the retaining wall requirements in both Weld County and Boulder County and we'll be able to ensure your wall is built to meet or exceed any of their building requirements.

Proper Drainage For Retaining Walls

At Frontier Stone, we frequently receive inquiries from potential customers who are facing issues with their existing retaining walls. Whether it's a wall that is falling down, bulging, or collapsing, one of the most common causes of retaining wall failure is poor drainage.

Retaining walls are designed not only to withstand the pressure of earth and soil but also to effectively manage water flow. When water accumulates behind a retaining wall, it creates what industry professionals refer to as "hydrostatic pressure." This external force, combined with the weight of the water, can significantly compromise the structural integrity of the wall, leading to failures such as bulging or even complete collapse.

To ensure the long-term durability of a retaining wall, proper drainage is of utmost importance. A well-built retaining wall must incorporate effective drainage systems to mitigate hydrostatic pressure. Depending on the type of material used for the wall, there are various drainage solutions available. These can include lateral drains, French drains, weeping drains, blanket drains, and the use of granular soil or fill behind the wall to disperse rather than retain water.

By integrating appropriate drainage measures, a retaining wall can withstand the test of time. It allows water to flow away from the wall, preventing the build-up of hydrostatic pressure that can compromise its stability. Our team at Frontier Stone is well-versed in the importance of proper drainage in retaining wall construction. We employ best practices and industry expertise to ensure that your retaining wall not only functions flawlessly but also remains structurally sound for many years to come.

When it comes to retaining wall projects, don't overlook the significance of drainage. Partner with Frontier Stone, and let us design and construct a retaining wall that incorporates efficient drainage systems tailored to your specific needs. Our commitment to quality craftsmanship and attention to detail ensures that your retaining wall will stand strong, even in the face of hydrostatic pressure challenges.

Understanding Retaining Wall Surcharges

In the realm of retaining walls, the term "surcharge" refers to the additional weight exerted on or behind the wall. When constructing a retaining wall to accommodate a specific purpose, such as creating a parking area for a boat or an RV, it becomes crucial to consider the weight of these vehicles and their impact on the structure.

For a retaining wall to withstand the presence of a surcharge, it must be built with this factor in mind. This consideration extends to tiered retaining walls, those designed to support a fence or any other weight beyond the soil it is intended to hold back.

To reinforce the structural integrity of a retaining wall and ensure its long-lasting performance, geo-grid is commonly employed. Geo-grid is a material that provides additional tensile strength to each course of the wall, anchoring it to the ground behind. By utilizing geo-grid properly, your retaining wall gains the necessary reinforcement to withstand the excess weight and prevent collapse or buckling.

At Frontier Stone, we understand the critical role of surcharge and the significance of proper reinforcement in retaining wall construction. Our expert team incorporates geo-grid as a key component to fortify the structural stability of your retaining wall. By implementing this technique, we ensure that your wall is built to last, even under the additional weight exerted by surcharges.

When planning your retaining wall project, whether it involves accommodating vehicles or incorporating other forms of weight, Frontier Stone has the expertise to create a durable and reliable structure. Trust us to construct a retaining wall that not only fulfills its intended purpose but also stands strong for years to come.

What Materials Do We Use For Retaining Walls?

There are many different materials to build your retaining wall out of.  Below are some of the more popular materials in our area because of their availability.

  • Block retaining walls
  • Natural stone retaining walls
  • Large boulder retaining walls

How Our Retaining Wall Construction Process Works

When building a retaining wall on your property that is designed to hold back soil and earth from erosion there is very little margin for error so when required we work directly with engineers if your wall is over 6 feet in height.  There are many pre-engineered systems we can use as well that can eliminate the need for detailed building plans.

  1. We start with our initial consultation.
  2. We determine how many feet of retaining wall you need.
  3. We determine the height of the wall and if a building permit or engineer will be required.
  4. We take into account any surcharges (weight) the wall might be exposed to.
  5. We consult with you on the materials you’d like your retaining built with.
  6. We’ll provide you with an accurate written estimate for the work.

The amount of work required to build a retaining wall can vary widely from project to project.  The slope of your property, the amount of earth your retaining wall must hold back and the overall accessibility of your property will all contribute to the final cost.  We’ll be able to offer you an accurate estimate only after a site visit.

What Does It Cost To Build Retaining Walls?

Retaining walls can vary in price depending on the size, scope, length, height, and the materials chosen.  Larger walls will need to be engineered which can add to the cost.

Smaller Garden Walls

$3000 - $5000

This would be for a small garden wall (under 2 feet high) to surround a small garden or to surround a small landscaping bed.

Medium Sized Walls

$10,000 - $25,000

This would be for a medium sized wall up to 4 feet high.  Installed with drainage and geo-grid so it lasts.

Large Retaining Walls

$30,000 - $100,000+

This would be a ballpark cost for a very large or tiered retaining wall or multiple wall with courses that are 4 feet or higher

Retaining Wall Projects Can Include

A beautiful retaining wall isn't just for looks.  They have an important job to do.  Whether we're building a brand new retaining wall or replacing an existing retaining wall that has failed, there are a number of things we do.

Proper Excavation
Proper Base Materials
Drainage Installation
Lighting (extra cost)
Built-in Stairs (extra cost)
Geogrid (for stability)
Cap Stones (for looks)
Engineering (if required)

These prices do not include stairs.  If you need stairs built within your retaining wall there will be an additional cost.  These price ranges are for a typical wall built using readily available landscape block.  There are a wide variety of styles and patterns available and we'll be able to provide you with a selection during our consultation.  The price can vary significantly depending on the specific material you choose.

These prices are ball park figures to give you a rough idea as to what you should expect.  Your particular project may vary depending on site accessibility, materials chosen, and the overall scope of work.  If you need a firm price please request a consultation so we can view your potential project, listen to your ideas, and determine the actual scope of work required to complete your project.  After our on-site consultation we'll be able to provide you with a firm estimate to complete your project.

Retaining Wall Repair Or Replacement

We specialize in rebuilding retaining walls that have failed and/or collapsed.

Retaining Wall Repairs

It's pretty common for us to get called out to repair an existing retaining wall that has collapsed or failed in some way.  This could be an old wood retaining wall that is rotting away or a block wall that is bulging or on the verge of collapse if it has not collapsed already.

Typically we don't recommend "repairing" retaining walls.  The wall has failed for a reason and that reason is typically poor construction or a poor choice of materials.  When a wall has failed we will usually recommend tearing the wall out and replacing it.  This would include demolition of the old wall, re-excavating the area to allow for proper base materials, installation of proper drainage, and proper backfill.  Building it right is the more cost effective option in most situations.

Rebuilding Failed Retaining Walls

If your existing retaining wall has failed and needs to be replaced it's usually more cost effective to demolish the old wall, remove the materials, re-excavate the site, install a proper base, geo-grid if necessary, install drainage, and build the retaining wall properly.

We specialize in rebuilding retaining walls that have failed and would be happy to provide you with a consultation if you have a wall that you believe needs to be replaced.

What Our Customers Say...

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it was easy to submit an online request for an estimate and it was easy to schedule a project inspection visit. The online proposal that I received was easy to use! It was great having Frontier Stone work on our brick fireplace for our backyard.

IGNACIO R R November 15, 2023
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Exceptional Experience! ⭐⭐⭐⭐⭐ I can't express how thrilled I am with my recent experience. From start to finish, every aspect of my interaction with this company has been top-notch. The service I received was nothing short of exceptional. The staff went above and beyond to make sure I was satisfied. Their attentiveness and dedication to customer satisfaction are truly a step above. I felt like a valued customer from the moment I signed my contract. Additionally, the company's website was user-friendly, making it easy for me to find what I needed. The pricing was fair and competitive. Furthermore, the office staff was outstanding. I had a few questions before making my decision, and the response I received was quick, informative, and friendly. It's clear that they genuinely care about their customers' needs and concerns. In summary, my experience has been delightful. I will no doubt be a repeat customer and will enthusiastically recommend them to friends and family. Thank you for making me a happy customer!

Urias Alpha October 24, 2023
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It was easy to look up pricing on their website and I was able to schedule a site visit online using their website. Easy experience so far with obtaining a proposal for our front porch masonry work.

Lidio Rebolloso October 2, 2023
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Hiring this contractor was a huge mistake. The workers were constantly late, and the final result looks like it was done by amateurs. Sloppy craftsmanship and zero accountability.

Audrey Armoudlian August 23, 2023
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I need a small repair for an entryway and frontier stone was able to repair it at a great price. I will continue to support a small local business in boulder county.

Alvaro Cedillo August 22, 2023
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Their team crafted a sturdy and attractive wall that really complimented my landscaping - it's like a work of art in my backyard.

Dennis Harvey June 20, 2023
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Thanks so much for our gorgeous fire pit! Your masonry services can’t be beat!

Matondo Ruth June 19, 2023
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We used to completely ignore our backyard, but now it's an inviting place with a stunning patio for relaxing and entertaining! Great value for money as well.

Request Your Retaining Wall Consultation

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