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EC Foundations
- Team
- Reinforcement
- Price
“Their analysis was that my issues were minor, that I was already mitigating the situation appropriately, and that it was not worth the very expensive cost of renovation.”
Best Retaining Wall Contractors in Nepean, ON
24 companies listed · 7 in Nepean · 2 open 24/7 · 8 open weekends · 23 rated 4.5+
Data verified October 18, 2026
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Medusa Stoneworks
- Job
- Walkway
- Property
“It is obvious that there is camaraderie and collaboration and a keen interest in maintaining professional work conduct and a safe and tidy environment.”
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Masonry Nation
- Company
- Questions
- Fireplace
“He is very knowledgeable with what materials to use, always answered my calls, but mostly I love how he was able to complete the work on time, unlike many construction workers we have dealt with in the past.”
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Ottawapro Landscape Design & Construction
- Home
- Communication
- Company
“We had Ottawa PRO Landscape provide consulting, design, installation, and coordination of our two lane, 110' driveway paving with surrounding interlock, a 45' by 5' interlocked walkway / sitting area, and improved eavestrough underground drainage.”
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BTM Builders Inc.
- Fence
“The two gentleman that arrived early in the morning set to work immediately; had taped placed plastic around the work area, and were extremely Professional and did the job perfectly!!!”
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Prestige Design & Construction Ltd
“The work was done ahead of schedule, the contractors were skilled in their respective trades, the worksite was always clean and respectful for our neighbors, and the quality of work met all of our expectations.”
Listed for homeowners in and around Nepean, ON, these 24 companies build and rebuild retaining walls. Wall types, materials and seasonal hours are what each company publishes for itself, and the ratings and quoted lines are drawn from public reviews.
Area overview: Nepean, ON
Of the 24 companies we list here, 7 are in Nepean itself and 17 come from towns including Ottawa (12), Carp (1) and Gatineau, QC (1). The companies on this page are rated from 4.2 to 5.0 across 1,541 reviews; 12 have 50 or more reviews and 23 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (89%), quality (88%) and responsiveness (76%). The topics that come up most in reviews of the companies on this page are "communication", "estimates" and "price". 2 are open around the clock; 8 are open on Saturdays and 5 on Sundays. 4 show a licence on their websites and 1 lists staff certifications (WETT). 12 have ten or more years of experience, the longest 27 years. 2 offer emergency call-outs; 2 offer financing or payment plans; 12 give free estimates; 6 are family- or locally-owned and 1 lists coupons or special offers. We have a website on file for all 24 of the companies on this page; 19 publish a contact page; 19 list a public email and 1 takes bookings online. We count these figures across the companies on this page; hours and prices change, so confirm the details with the company before you book.
Will someone price the wall without charging?
No-charge estimates are advertised by 12 of the 24 companies here. A low wall on firm ground with easy access can be priced from a walk around. Anything tall, anything on a steep slope and anything with a driveway above it needs levels taken and usually an engineer, and that part is design work somebody pays for.
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Bedrock Construction & Design
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Foundation Repair Action Restoration
- Work
- Estimate
- Honest
“He came to the house promptly to give us a very competitively priced estimate and came a day early to do the work when rain was predicted for the next day.”
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D'Agui Masonry Ottawa
- Chimney
- Property
- Clean
“All were very friendly, respective of property while preforming their tasks, worked efficiently & who as I found out, enjoyed my home baked cookies😀 Despite some inclement weather , Greg always Hello kept me informed of when all work could/would be ...”
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Ottawa Cedar
- Labor
- Price
- Hedges
“Hello it's been 4 years that I have been doing business with symetric for the size of my cedars these an exemplary service I recommend them professional work thank you symetric”
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Cornerstone Brickworks Inc.
- Job
- House
- Quote
“Cornerstone Brickworks were very accommodating to us as we had multiple contractors working on the house at the time, and the work crew that came was professional, did great work and were really good about walking us through all of the work they did ...”
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Black Tar Construction
- Paving
- Ramp
- Home
“From start to completion I found everyone I dealt with at this Company to be very helpful and thorough and most pleasant to deal with - in person, on phone ,via emails and texts - so good at communicating and explaining everything !”
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Canadian Masonry Services
- Crew
- Result
- Estimate
“I was so pleased that their estimate came in competitive with other companies cause I truly felt I wanted to work with them after Mitch came to give us an estimate.”
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Stonehenge Masonry
- Job
- Rain
- Communication
“I even asked for a walk around the house to see if there was anything else that needed attention, and this is the point where I expected a long list of extras and to my surprise the honesty about what could be an issue in the late future was pointed ...”
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WCI Ottawa
- Team
- Quality
- Home
“WCI was very quick to come out and provide the initial quote, and within two weeks of agreeing to the work they contacted us that they were available to do the job that day.”
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Top Rock
- Team
- Steps
- Walkway
“Especially appreciated how diligently they prepped the space before beginning the seal as well as how clean they left everything once they were finished!”
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Custom Interlock
- Job
- Questions
- Company
“We had quote from other landscapers and they all lack details, Chris quote was the only one that was detailed and we decided to go with him to do our retaining wall and he and his crew did a fantastic & beautiful job, couldn't be happier and will def...”
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The Foundation Guys Inc.
- System
- Radon
- Clean
“Turns out that my foundation was fine, but still he cared about me and my issues and like a family member would do he went above and beyond to try and find the source of my problems.”
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Killarney Landscaping
- Team
- Work
- Walkway
“He rebuilt our front walkway, covered our front porch and steps with stone, installed steps to create 2 side walkways around our house, built our back and front deck, created a natural looking retaining wall along the back, built 2 patios (front sitt...”
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Renovations Bourgeois Inc
- Team
- Bedroom
- Service
“He replaced our old sliding glass patio doors, giving extra attention to ensuring everything was completely sealed and perfectly balanced; he replaced our old carpet in our den with stunning mahogany, and somehow managed to make the room look beautif...”
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Ardel Concrete Services
- Basement
- Water Proofing
- Fair
“Although the issue didn't fall within warranty (because the moisture was due to damaged flagstone/threshold rather than the foundation work they had done), Steve took time to explain possible courses of action and recommended several stonemasons bett...”
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Bulgari Paving
- Driveway
- Project
- Communication
“The paid attention to details, made sure the grading was done right, interlocking lines were straight, edges were clean, installation was done as per the design provided by the customer, surrounding area was thoroughly cleaned, paving was done with h...”
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Keo-Can Landscape & Renovations
- Team
- Number
- Budget
“He provided a detailed estimate and was the only contractor who took the time to assess the grade change from covering the porch with interlock and let us know that we needed to add another step in our design, it was great to know this ahead of time.”
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Ottawa Foundation Repair
- Price
- Wall
- Questions
“I never felt uncomfortable or uninformed throughout the process; he was knowledgeable, friendly, personable, professional, and just really what you want when you hire someone to work on something especially concerning in your home.”
Retaining Wall Design & Installation Services in Nepean, ON Cost Estimates
Minimum cost
$1370
Maximum cost
$14840
National Average
$6134
Avg Per Hour Rates
$81
$3659
$9602
Fair price range is based on 306 cost profiles
Why these companies made our list
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