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Retaining Wall in Slidell, LA (70458) · Local Professionals

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Slidell sits right on the edge of Lake Pontchartrain, and if you live in 70458, you already know the ground under your yard can turn soft fast. The lots along Bayou Liberty and the canals off the lake are low and wet, and the older brick and timber walls around raised slabs and driveways take a beating from our summer storms.

That is why homeowners in Slidell call New Orleans Retaining Wall. We have seen the leaning timber walls near Olde Towne and the cracked block planters in neighborhoods off Gause Boulevard, and we know how to fix them so they hold.

Retaining Wall in Slidell (70458)

Slidell is not New Orleans, and the ground here proves it. Along the bayous and lake canals, you are dealing with soft, organic clay and peat that stays wet most of the year. Bulkheads and bank walls take the brunt of it, and when the water table sits a few feet down, hydrostatic pressure builds behind any wall that does not drain. We see it in the 1950s to 1970s slab ranches and the raised homes built after 2005, where poured concrete around driveways and timber bed edges start to sink or bow. Formosan termites love the old railroad ties and timber walls that are common in older Slidell yards, and hurricane rain or a summer cloudburst can saturate the backfill and push a wall over in one afternoon. Our team handles slope stabilization and concrete retaining walls for these wet, low lots, and we build drainage into every job so the wall can breathe.

We have been serving Slidell and the surrounding New Orleans area for years, and we know the difference between a wall that just looks fine and one that is actually holding the grade. If your property backs up to a canal or sits on a slope near Bayou Liberty, we can tell you what will last.

Our services in Slidell

How a Job Works in Slidell

Step 1: Call us at (504) 399-7980 or send a message, and we will set up a free on-site assessment. We walk the property with you, look at the wall, the soil, the drainage, and the access, and we give you a straight answer about repair, replacement, or a new build. No pressure, no sales pitch.

Step 2: Once you approve the estimate, we schedule the work. In Slidell, that often means planning around tight side yards and coordinating with the City of Slidell on permits if the wall is tall or supports a driveway. We handle the paperwork and keep you posted on timing, especially during hurricane season when the weather can shift a schedule.

Step 3: When the job is done, we clean up the site, haul off old materials, and walk the finished wall with you. We leave your yard clean and show you how the drainage works so you can keep an eye on it.

Pricing in Slidell depends on the size of the wall, how easy it is to get equipment to the site, the condition of what is there now, and how fast you need it done. As a ballpark, timber retaining walls start around $20 per square foot, block and segmental walls and boulder walls start around $25 per square foot, and concrete retaining walls start around $35 per square foot. Installation starts at $30 per square foot, replacement at $35 per square foot, and railroad tie wall replacement at $35 per square foot. Repairs start at $1,500, while leaning or collapsed wall repair and drainage work start at $2,500. Slope stabilization and erosion control estimates are free. Call (504) 399-7980 for a free estimate on your Slidell property.

My bulkhead along the canal in Slidell is leaning. Can you repair it or does it need to be replaced?
It depends on how far it has moved and what is behind it. A slight lean from soft clay can sometimes be stabilized with better drainage and anchoring, but if the wall is bowing badly or the soil behind it is washing out, replacement with a concrete or block wall is usually the smarter long-term fix. We assess the soil and drainage first, because in Slidell the wet ground is often the real problem.
Do you respond to storm damage and collapsed walls after a hurricane in Slidell?
Yes. After heavy rain or a storm, we prioritize walls that have collapsed, slid, or are threatening a home or driveway. Call (504) 399-7980 and describe the situation, and we will get out as soon as we can to secure the area and give you a repair plan.
What does a typical retaining wall repair cost in Slidell?
Most repairs start around $1,500, and larger jobs like leaning or collapsed wall repair start around $2,500. The final price depends on the length and height of the wall, the material, how much drainage work is needed, and access to the site. We give you a written estimate before any work starts.
Do I need a permit for a retaining wall in Slidell?
Many jurisdictions require a permit for walls above roughly 4 feet measured from the footing, or when the wall supports a surcharge like a driveway or structure. Engineered drawings may be required for tall or tiered walls, and setback rules apply. Check with the City of Slidell through Slidell's official city site for the current requirements, and we can help you understand what your project will need.
What if my neighbor says the wall is on their property line in Slidell?
Property line disputes are common with older Slidell lots, especially where fences and walls have been there for decades. We recommend getting a survey if the line is unclear before any work begins. If your neighborhood has an HOA, we can coordinate with them on design and approval so the wall meets the rules.
Are you insured for retaining wall work at my Slidell property?
Yes, we are fully insured with general liability and workers' compensation coverage. That protects you and your property while our crew is on site, and we are happy to provide proof of insurance before we start.
How can I prevent my retaining wall in Slidell from failing during the rainy season?
The biggest thing is drainage. Make sure the weep holes and drainage behind the wall are clear, and watch for soggy spots or soil settling near the top. In Slidell, the water table is high and summer storms are intense, so a wall that cannot drain will eventually lean or crack. We can inspect your wall and recommend fixes before the next storm season.
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Our services

Our Retaining Wall Services in New Orleans

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Retaining Wall Installation

New engineered retaining walls built to hold back soil, level your slope, and last for decades.

Included in your service

  • Compacted footing and gravel base sized to your wall height
  • Geogrid reinforcement and correct batter for long-term stability
  • Drainage aggregate, filter fabric, and weep holes built in behind the wall
  • Free on-site assessment and written estimate within 24h
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Retaining Wall Repair

Fast diagnosis and repair of leaning, bowing, or cracked walls before they fail.

Included in your service

  • Root-cause diagnosis of the failure: drainage, surcharge load, or footing
  • Tieback anchors installed to pull a leaning wall back true
  • Clearing or rebuilding the clogged, missing drainage that drove the failure
  • Same-week scheduling for walls at risk of collapse
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Retaining Wall Replacement

Full tear-out of failed railroad tie and timber walls, rebuilt in modern engineered block.

Included in your service

  • Removal and haul-away of the old rotted or collapsed wall
  • Tie-to-block conversion using segmental retaining wall (SRW) units
  • New engineered base and compacted backfill built to current code
  • Restoration of the yard grade and finished surfaces above the wall
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Concrete Retaining Walls

Poured concrete and reinforced CMU walls for maximum strength on tall or high-load sites.

Included in your service

  • Steel-reinforced footing engineered for the wall load
  • Formed and poured concrete or grouted reinforced block (CMU)
  • Waterproof membrane and drainage board on the retained face
  • Built for tall walls or walls carrying a driveway or structure surcharge
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Block & Segmental Retaining Walls

Segmental block walls in Allan Block, Versa-Lok, Keystone, and Redi-Rock systems.

Included in your service

  • Interlocking SRW units, mortar-free, with built-in setback batter
  • Wide choice of colors, textures, and matching wall caps
  • Geogrid tie-back layers for reinforced walls over four feet
  • Curves, steps, and integrated seat walls or planters
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Boulder & Natural Stone Walls

Natural boulder and stacked-stone walls that blend structure with the landscape.

Included in your service

  • Hand-placed quarried boulders keyed and buried for stability
  • Naturalistic stacked-stone and rockery finishes
  • Excavation and grading to seat a solid base course
  • Ideal for gravity walls, terracing, and erosion-prone slopes
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Timber Retaining Walls

Pressure-treated timber walls, an economical, natural-look option for lower grades.

Included in your service

  • Ground-contact-rated pressure-treated lumber
  • Deadman anchors set back into the slope for holding power
  • Gravel backfill and drainage to slow rot and pressure buildup
  • Cost-effective for shorter garden and planting-bed walls
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Slope Stabilization & Erosion Control

Hillside and erosion control that stops soil movement and protects your property.

Included in your service

  • Geogrid-reinforced soil and terraced tiers on steep grades
  • Tieback anchors or soil nailing where access is limited
  • Regrading and swales to redirect surface water off the slope
  • Erosion matting and planting to lock down the finished face
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Retaining Wall Drainage

Proper drainage is the single biggest factor in whether a retaining wall survives.

Included in your service

  • French drain and perforated pipe installed at the wall footing
  • Weep holes cut to relieve hydrostatic pressure behind the wall
  • Clean drainage gravel wrapped in filter fabric against the backfill
  • Surface grading to carry runoff away from the structure
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Railroad Tie Wall Replacement

Removal of aging creosote railroad tie walls, rebuilt in modern engineered materials.

Included in your service

  • Demolition and haul-away of creosote-treated ties from the 80s and 90s
  • Rebuild in segmental block, poured concrete, or natural stone
  • Fresh drainage gravel and perforated pipe the old tie wall never had
  • Wall height and permit review before demolition begins
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Leaning & Collapsed Wall Repair

Priority response for leaning, bulging, and collapsed walls before they take out the slope.

Included in your service

  • Emergency site securing and debris removal after a collapse
  • Tieback anchors and soil nailing to arrest a bulging wall
  • Drainage correction to release the water pressure behind the failure
  • Partial or full engineered rebuild when the wall is past saving
Learn more→
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