Retaining Wall Contractor in Mahopac NY

Colonial Landscaping & Masonry is a trusted retaining wall contractor in Mahopac NY specializing in stone and block retaining wall installation. With over 30 years of experience, we build structurally sound retaining walls designed for proper drainage, soil support, and long-term durability in New York’s climate.

Types of Retaining walls we offer

  • Segmental block retaining walls

  • Natural stone retaining walls

  • Concrete retaining walls

  • Decorative garden walls

  • Engineered structural retaining systems

Stone & Block Retaining Wall Installation in Mahopac

We install natural stone and concrete block retaining walls to manage elevation changes, prevent erosion, and improve usable outdoor space.

Every retaining wall is built with proper base preparation, drainage, and reinforcement.

Structural Retaining Walls for Sloped Properties

Many Mahopac properties require retaining walls to support sloped terrain. Our team designs and installs retaining walls that meet structural requirements and withstand seasonal freeze-thaw conditions.

Retaining Wall Repair & Replacement

If your existing retaining wall is leaning, cracking, or failing, we provide retaining wall repair and replacement services throughout Mahopac and Putnam County.

Why Homeowners Choose Colonial Landscaping

  • 37+ years family-owned & trusted

  • Quality long-lasting materials

  • Clean, professional crews

  • Fast timelines without cutting corners

  • Transparent pricing & communication

  • Fully insured and equipped for residential & commercial work

Serving Mahopac & All of Putnam County NY

  • Carmel

  • Mahopac

  • Brewster

  • Patterson

Our work..

Get your free estimate today

Retaining Wall Contractor Putnam & Westchester | 37+ Years Experience
Family-owned Colonial Landscaping builds retaining walls that last! Quality materials. Beautiful finishes. Free estimates.

Request an Estimate

© Copyright 2026. Colonial Landscaping, Inc. All Rights Reserved.