Sloped and waterfront lots are the rule in Southern Maryland, not the exception, and a properly built retaining wall is what keeps that soil in place. Gray & Sons Contracting builds segmental block, stone, and timber walls with the drainage and engineering they actually need to last. Winter is the time to plan and lock in your spot for spring. Free written estimate.
A retaining wall is one of the few landscape structures that's doing real structural work every single day, holding back tons of soil and the water in it. Get it wrong and it leans, bulges, and fails; get it right and it turns an unusable slope into level, dry, usable yard for decades. As a family-owned general contractor, Gray & Sons Contracting builds walls for homeowners across Calvert, St. Mary's, and Charles County, and we build the part you don't see, the base, the reinforcement, and the drainage, with the same care as the face you do.
Engineered interlocking block is the modern standard for good reason: the units lock together, batter back into the hillside for strength, and accept geogrid reinforcement that ties the wall deep into the retained soil on taller builds. We build with Versa-Lok, Allan Block, and Belgard block in colors and textures that suit the house, on a compacted base that keeps the courses true and level.
For a rugged, natural look, especially on wooded and waterfront lots, a boulder or natural stone wall settles into the landscape like it's always been there. We set the stone with proper backfill and drainage behind it so it holds the grade as well as it looks, not just a pretty pile that washes out in the first hard rain.
Pressure-treated timber walls are a cost-effective option for lower terraces and garden beds where the look fits. We build them with proper deadmen tiebacks anchored into the bank, gravel drainage behind, and rated hardware so the wall stays put instead of bowing outward after a couple of wet seasons.
This is the heart of the job. Behind every wall we build goes clean drainage stone and a perforated pipe that carries water away, so hydrostatic pressure never gets the chance to build. On the many Calvert and St. Mary's lots dealing with runoff, an erosion control wall in St. Mary's County paired with proper grading stops soil from washing downhill and protects foundations, driveways, and shorelines from undermining.
Not every wall is holding back a hillside. A low sitting wall defines a patio and adds seating, and a series of terraced walls turns one steep, useless slope into stacked, plantable, walkable levels. We design terraces so each wall stays within a safe unreinforced height where possible, which keeps the project cleaner and the cost down.
Retaining walls in our area typically run about $30 to $60 per face square foot, that's the exposed height times the length of the wall. Four things move that number more than anything: the height of the wall (taller walls need deeper footings, geogrid reinforcement, and often engineering), the material you choose, how much drainage stone and pipe the design requires, and whether a tall or load-bearing wall needs a stamped engineered design and permit. Site access matters too, a wall a machine can reach costs less to build than one everything has to be carried to. We walk the slope, assess the drainage, and put an exact number in writing for free.
A leaning or bulging wall is telling you the drainage behind it has failed and pressure is winning, that's a rebuild, not a patch, and it's worth a free look before it lets go.
We build with Versa-Lok, Allan Block, and Belgard segmental retaining wall systems, engineered block designed to interlock, batter, and accept geogrid reinforcement so the wall works as a system, not just stacked units. These lines hold color, resist freeze-thaw spalling, and come backed by real manufacturer warranties. For the right setting we also work in natural stone, boulders, and pressure-treated timber. Whatever the material, we build to spec on a compacted base with full drainage behind, because a retaining wall lives or dies by what's behind the face.
We build retaining walls throughout Calvert, St. Mary's, and Charles County across Southern Maryland, including Prince Frederick, Solomons, Lusby, Huntingtown, Dunkirk, Owings, St. Leonard, Leonardtown, California, Lexington Park, Hollywood, Waldorf, and La Plata. See our full service area.
Because a retaining wall is rarely the whole project, it's what makes the rest possible. Once a slope is terraced and stable, that new level becomes the spot for a patio or walkway, the reclaimed grade gets softened with landscaping, and a stepped yard often ties up to a deck at the house. Planning it all with one crew means the walls, levels, and drainage are designed to work together from the start. One call, one crew, one standard of work, and if you plan the wall over the winter, you're ready to build the moment spring arrives.
Tell us what your lot is doing and we'll come walk it. New wall or failing one, you'll get a straight answer on drainage, engineering, and a free written estimate.