TL;DR
- Short walls (under 3 ft): $4,000–$8,000
- Mid-height (3–6 ft): $8,000–$15,000
- Tall / engineered walls (6+ ft): $15,000–$30,000+
- Walls over 4 ft typically require a Baltimore County permit
- Concrete block is the most popular MD material; lasts 40+ years
Retaining walls in Maryland cost $4,000–$30,000+ depending on height, length, and material. A.R. Curb Appeal LLC in Baltimore County, MD builds engineer-grade retaining walls and handles all permit coordination for walls over 4 feet.
Average Retaining Wall Cost in Baltimore County
- Short walls (under 3 ft): $4,000–$8,000
- Mid-height (3–6 ft): $8,000–$15,000
- Tall / engineered walls (6+ ft): $15,000–$30,000+
Retaining Wall Materials & What They Cost in Maryland
- Concrete block / Allan Block — durable, mid-priced, most popular
- Natural stone — premium look, highest cost
- Brick — classic Baltimore look, mid-to-high cost
- Timber — not recommended for permanent installs in Maryland's wet climate
Do You Need a Permit for a Retaining Wall in Baltimore County?
Retaining walls over 4 feet in Baltimore County typically require a permit and engineered drawings. A.R. Curb Appeal handles permit coordination so you don't have to navigate Baltimore County permitting on your own.
How Long Do Retaining Walls Last in Maryland?
A properly built segmental concrete-block retaining wall in Maryland lasts 40+ years with minimal maintenance. Natural stone walls can last a century. Timber walls rarely make it past 15 years in our climate.
Signs Your Yard Needs a Retaining Wall
- Visible soil erosion or washout after heavy rain
- Sloped yard you can't safely use
- Existing wall is leaning, cracking, or bulging
- Foundation grading concerns near the home
Ready for a Free Retaining Wall Estimate?
Get a free on-site retaining wall consultation in Baltimore County or Harford County from A.R. Curb Appeal LLC.
Call (410) 982-2201 or request a free written estimate online.