O'Keefe Built
“Jerry made several changes and suggestions on the original bid, and Chad & Sergio were extremely communicative and great to work with on the deck project.”
Best Retaining Wall Contractors in Longmont, CO
24 companies listed · 16 in Longmont · 9 open weekends · 22 rated 4.5+ · 3 show a license
Data verified October 27, 2026
J & S Landscape
“We really appreciated and recognized that Scott, who has been in the business since he was a teenager, was at our home every day bright and early to ensure crews, supplies and materials were arriving just as they were needed and planned”
Mountain View Landscaping & Concrete
“Best of all, he was on site from the very beginning to the very end, made sure everything was done exactly as we had discussed, and brought with him a very experienced, knowledgeable and friendly work crew.”
Ed's Gutierrez Concrete
“Gutierrez Brothers gave a fast and fair estimate, did the work quickly and professionally, and kept us informed along the way to make sure we were happy.”
R R Concrete LLC
“Once they started the work, they did the job in just a couple days and cleaned up after themselves and even went over and above and did some extra that was not on the original bid and we were not charged.”
Tellez Concrete and Design Llc.
“We could not has chosen better or been more pleased with the work, start to finish, We would highly recommend Tellez Concrete and Design LLC for their integrity, promptness and extraordinary finished work.”
Listed for homeowners in and around Longmont, CO, these 24 companies build and rebuild retaining walls. Wall types, materials and hours are what each company publishes for itself, and the ratings and quoted lines are drawn from public reviews.
Area overview: Longmont, CO
Of the 24 companies we list here, 16 are in Longmont itself and 8 come from towns including Loveland (2, 17 mi), Erie (1, 7 mi) and Berthoud (1, 10 mi). The companies on this page are rated from 4.0 to 5.0 across 577 reviews; 3 have 50 or more reviews and 22 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise quality (94%), professionalism (94%) and responsiveness (89%). The topics that come up most in reviews of the companies on this page are "price", "estimates" and "communication". 8 are open on Saturdays and 2 on Sundays. 3 show a license on their websites and 4 have a BBB rating of A or A+. 14 have ten or more years of experience, the longest 64 years. 1 offers financing or payment plans; 9 give free estimates; 5 are family- or locally-owned and 1 lists coupons or special offers. We have a website on file for 21 of the companies on this page; 18 publish a contact page; 12 list a public email and 1 takes bookings online. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.
Do these companies show photos of finished walls?
A website link sits on 21 of the 24 wall builders here. A photograph of a finished wall tells you very little, because everything that fails is behind the face. Look for pictures taken mid-build instead: the base trench, the drainage stone going in, the grid rolled out between courses. A company that photographs that stage is proud of the right part.
Construction Concepts Inc
“Great people!”
New Era Landscape
“He is knowledgeable and kind - a great combination!”
Concrete
“Hugo was excellent to work with, and the team from B&M did an excellent job on removal, grading the subsurface, placing rebar/mesh reinforcement, pouring, and surfacing the new slab.”
Brady Landscaping & Construction
“At no time during this process did they ever say well it's going to cost you more for us to do this very amicable Jose, Oscar and Rolando the guys who actually did the work knew their stuff and were very efficient and focused in their work.”
KMN Concrete
“KMN put in a new set of stairs leading up the front of our house, a two-foot driveway extension, two small patios, and a walkway along the side of the house.”
Perez Landscaping & Concrete
“Fair price offered, along with warranty and option to check in should any issues arise down the road.”
GR Concrete Construction LLP
“My husband is an employee”
Frontier Stone LLC
“I wanted a beautiful private area for my garden, and they really went above and beyond to make everything look beautiful and up to date with building a garden wall.”
Faurot Construction
“Another project popped up as well, fixing some loose fence posts along my driveway, and they tacked that on and handled both quickly and with great quality.”
Gutierrez Concrete Bros
“The Best company and experience around Colorado State.”
Concrete Structures Inc
Jones Excavating & Plumbing
“Josh Jones and his ability to hire the cream of the crop workers makes Jones Excavating and Plumbing the number one excavation and plumbing company you need to call to get the work you need done right the first time.”
Blue Tree Resources Excavation & Demolition
“He made sure the site was leveled for proper drainage of rain water, cleaned up the job site by hauling away all the debris and even swept away stray dirt.”
Boulder Landscape and Design
“Boulder Landscape & Design initially did a complete overhaul of our backyard in 2015, including sprinklers, sod, a flagstone patio and walkway, and additional landscaping and plantings.”
Bedrock Landscape LLC
“I am so happy with their work, which was done in the time they said it would take, and on top of that they worked well with any Changes that came up and always had smiles that brighten your day (had to mention that because you hardly see that anymore...”
Brothers By Nature Outdoor Contracting
“Brothers by Nature came by and cleaned up our yard for installation (huge plus), set up rebar and the foundation for the concrete, poured and stamped concrete within probably 5 hours (give or take).”
G2 Construction LLC
“We were so impressed with their work, we then hired them to completely re-do our backyard, with a deck removal, brand new gorgeous concrete patio, new drive way, new sod in the yard and yard edging with gravel.”
Jr's Landscaping Services
“JR came in and re-did our driveway, helped me set up my garden area (including the drip irrigation to make it more self-sufficient), pulled all my weeds to make my plants "happy" again....”
Why these companies made our list
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