Retaining Wall Contractor in Greater Boston
Retaining walls for slope stabilization, grade change, and raised patio areas — Schlickmann builds structural walls with proper drainage and, for walls over 4 feet, engineer-stamped design.
Retaining walls in Greater Boston serve functional and aesthetic purposes — stabilizing slopes, creating level patio areas, managing grade changes between properties, and controlling erosion. A wall that retains soil without proper drainage behind it will fail regardless of how well-built the face looks. Schlickmann installs drainage aggregate and drain pipe behind every retaining wall we build.
Retaining walls over 4 feet in height require a building permit and, in most Massachusetts municipalities, an engineer-stamped design. Schlickmann coordinates the engineering for structural walls as part of our scope. Walls under 4 feet typically don't require permits, but they still require proper base preparation, batter (backward lean), and drainage to perform long-term.
Material selection: segmental concrete block (Allan Block, Versa-Lok) is the most cost-effective and longest-lasting option for functional retaining walls. Natural stone (granite, fieldstone) is the premium choice that complements Colonial and Cape architecture. Timber walls are lower cost but have a 15–20 year lifespan in New England conditions. Schlickmann builds all three.
Retaining Walls — FAQ
How much do retaining walls cost in Massachusetts?
Retaining wall construction in Massachusetts typically costs $50–$80 per square face foot for concrete block walls and $80–$120 per square face foot for natural stone. A 50-foot wall at 4 feet high runs $10,000–$20,000 installed. Engineering fees for walls over 4 feet add $1,000–$2,500. Schlickmann provides fixed-price proposals after site assessment.
Do retaining walls require permits in Massachusetts?
Retaining walls over 4 feet in height require a building permit in most Massachusetts municipalities and typically an engineer-stamped design. Walls under 4 feet generally don't require permits. Schlickmann handles permit applications and engineering coordination for all walls that require them.
Why do retaining walls fail?
Retaining walls fail from hydrostatic pressure — water accumulating in the soil behind the wall with no outlet. The water-saturated soil becomes extremely heavy and pushes the wall forward. Schlickmann installs drainage aggregate (crushed stone) and perforated drain pipe directly behind every wall we build. Without drainage, even a well-built wall will eventually fail.
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Unlike specialty contractors who stop at one scope, Schlickmann can deliver the adjacent work under the same contract.
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Licensed CSL-121587 · Fixed-price proposals · Serving Greater Boston since 2021
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