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Top-Rated Retaining wall installation pros in Thornton - Updated Nov 2026

Avatar for Colorado Wall Design and Build, LLC
Colorado Wall Design and Build, LLC
5.0(
23
)
Retaining Wall - Install

Serving Thornton, CO and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

"I had an outstanding experience working with Colorado Wall Design and Build, LLC from start to finish. Their team was professional, knowledgeable, and extremely detail-oriented throughout the entire project. From the initial consultation to the final walkthrough, they communicated clearly, stayed on schedule, and delivered exactly what they promised. The quality of their workmanship truly stands out. The wall was built with precision and care, and you can immediately see the pride they take in their craft. Everything was clean, structurally solid, and visually impressive. They handled challenges professionally and kept the project moving without delays. What I appreciated most was their transparency and reliability. There were no surprises — just honest communication and top-tier work. It’s hard to find contractors who combine skill, integrity, and efficiency the way they do. I highly recommend Colorado Wall Design and Build, LLC to anyone looking for high-quality wall construction"
Before
After
Before
After
Property line wall

+6

2 neighbors recently requested a quote
Recommended by56%of homeowners
Avatar for Armando Stone Works
Armando Stone Works
5.0(
100
)
Retaining Wall - Install

Serving Thornton, CO and surrounding areas

Approved

In business since 2016

Free estimates

Customers say: Quick response

"Everyone at Armando Stoneworks is very efficient, professional and skilled. We loved working with them and will recommend them to anyone who is in need of help with their stonework and retaining walls."
Before
Kitchen
Kitchen
Kitchen
Kitchen

+638

Response time50 mins
Response rate93%
Recommended by81%of homeowners
Avatar for D & D Tree Service & Landscape
D & D Tree Service & Landscape
4.7(
105
)
Retaining Wall - Install

Serving Thornton, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Emergency services offered

"The men that did the work related to the prepping the yard for the retaining wall, placing the rock and pavers for the walkway did a very good job and it really looked nice. I've worked in construction and building maintenance for over 50 years, so I know what's good workmanship and what's poor. The worker who did the framing for the new sidewalk, steps and porch was poor workmanship. Nothing was level or straight and I had to have the other crew correct the forms before concrete was poured. The guys that finished the concrete did an excellent job. Never let D&D workers connect the lawn sprinkler piping to your house water piping. They seem to be handymen, not real plumbers. Beside not installing necessary valves and fittings to winterizing the sprinkler system, all the copper pipe was installed crooked, under stress and not supported correctly. Overall, half the crew did very good work, the other half needs training."
dndtrees.com
Backyard Landscaping
Deck & Concrete
Summer Vibes
Response time1 day
184 neighbors recently requested a quote
Recommended by69%of homeowners
Avatar for Rock N Block- Turf N Hardscapes
Rock N Block- Turf N Hardscapes
4.9(
33
)
Retaining Wall - Install

Serving Thornton, CO and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2017

Free estimates

Warranties offered

"I am very happy with my experience with Rock N Block. They did a great job installing turf in my backyard. They worked with me to give many options to make this project fit in my budget. The installation team were very professional and the yard looks wonderful!"
Backyard Turf Installation
Landscape Design
Frontyard Full Makeover
Backyard Turf Installation
Additional Photos

+60

20 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Peppers Landesign Services
Peppers Landesign Services
4.7(
122
)
Retaining Wall - Install

Serving Thornton, CO and surrounding areas

Approved

Super Service Award Winner

Credit card accepted

Customers say: Super punctual

"I recently had two retaining walls built on our property by Gabe @ Peppers Landesign Services, and after the heavy storms we've experienced, I can confidently say that they exceeded every expectation. The retaining walls performed flawlessly, they are beautiful and handled a tremendous amount of water without any issues at all. It's obvious that the project was designed and built with quality, craftsmanship and attention to detail. The entire team was professional, knowledgeable, and great to work with from start to finish. It's reassuring to know we made the right investment and we're incredible grateful for the outstanding work. If you're looking for a landscape contractor who stands behind their work and delivers exceptional results, I highly recommend Gabe and his team. Thanks for a job very well done!"
IPE Fencing Project
Retaining walls, flagstone, and concrete
Patios Project
Animal Fencing Project
Fencing, stamped patios, metal railing, and covered structure

+73

Response time1 day
19 neighbors recently requested a quote
Recommended by69%of homeowners
Avatar for KDZ Construction, LLC
KDZ Construction, LLC
4.9(
24
)
Retaining Wall - Install

Serving Thornton, CO and surrounding areas

Approved

In business since 2018

Free estimates

Customers say: Quick response

"The whole experience was easy. Ivan and Yuliana stopped by to asses the project, promptly got me a quote, scheduled the service and even called earlier to see if they could get it done sooner. Above all, the work performed was stunning. Ivan and his crew of two spent 8 hours on a small piece of my basement wall and the time they put into shows. I d recommend them to anyone looking for masonry work."
Building the foundation
Fitting the Grill
Brick and Stone
Power washed and Finished!
Plants integrated

+13

Response time2 days
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Architect-Tonic Stone Designs, LLC
Architect-Tonic Stone Designs, LLC
4.5(
41
)
Retaining Wall - Install

Serving Thornton, CO and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

"Great looking variegated-colored block wall. They worked well with me and my ideas on the process of how to build the wall that I wanted. I was satisfied with the wall work that I am having them do a second project."
My jobs
My jobs
My jobs
My jobs
My jobs

+5

16 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Collective Concepts
Collective Concepts
5.0(
14
)
Retaining Wall - Install

Serving Thornton, CO and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"They constructed a retaining wall for us. They are very easy to work with. They kept us apprised of the work and did an excellent job! I would hire them again and highly recommend them!"
Excavation Start
Structural imported
Almost Done
Build Complete
Completed

+25

Response time1 day
Response rate91%
7 neighbors recently requested a quote
Avatar for Timberline Gardens Landscape, Inc.
Timberline Gardens Landscape, Inc.
4.8(
40
)
Retaining Wall - Install

Serving Thornton, CO and surrounding areas

Approved

In business since 1968

Free estimates

Credit card accepted

"Timberline Gardens Landscaping did a major construction of a three-tier retaining wall in our back yard area. We were specific on how we wanted the retaining wall be installed including using geogrid to tie back the wall system. We included two sets of steps to two tiers. The result was an exceptional retaining wall. The steps look terrific and provide easy access to two tiers. The crew was helpful in guiding us on the location of the wall installation and did an exceptional work during the installation. The crew was knowledgeableand professional, and their insight was invaluable. Shelly and Judy were patient with our numerous questions prior to and during construction and helped us with many decisions are the project progressed. Great work."
Waterfalls
Ponds and Streams
Residential Landscaping
Paths Patios and Steps
Retaining Walls

+31

Response time1 day
8 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Design & Build Outdoor Living
Design & Build Outdoor Living
4.2(
178
)
Retaining Wall - Install

Serving Thornton, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Warranties offered

"As Fernando said to me, We are a well oiled machine and indeed they are. I'm very happy with the results. The crew worked fast but efficiently. Our project was a frontyard short retaining wall and a replacement backyard patio using BELGARD pavers."
Longmont
Lower backyard
Michael's backyard
Michael's backyard
Beautiful paver project

+50

Response time2 days
Response rate89%
33 neighbors recently requested a quote
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Showing 1-10 of 518
Retaining Wall Installers FAQs, answered by experts

With foundation walls, the slab on grade and force at the top of the wall is resisted by flooring. With retaining walls, the force at the top of the wall is not resisted.

Small retaining walls still require a foundation of some kind, typically a concrete footing. This helps to ensure the wall is structurally sound and prevents the ground from shifting over time, especially during those winter freeze/thaw cycles. The footing helps spread the weight of the wall and the load it carries over a larger area of the ground, thus assisting with stability. This is true of small retaining walls, larger rock garden walls, and the like. 

Proper design and construction prevent erosion and add structural stability to landscapes.

Failure to compact the soil during construction is the most common cause of leaning retaining walls. In addition, poor drainage can lead to excessive water pressure behind a retaining wall, pushing against it until it begins to move forward away from the soil it is holding back.

Each design is different, so we can’t say definitively if you’ll need a dedicated drainage system in place for a two-foot retaining wall. However, you can likely skip the drainage, as this project is typically served for walls that are 4 feet tall or more. Even with a relatively low wall, consider drainage if you are building on top of clay or poor-draining soil types or if there are buried water sources nearby, like a well used for other outdoor garden projects.

The Thornton, CO homeowners’ guide to retaining wall installation services

From average costs to expert advice, get all the answers you need to get your job done.