For 36 years, master mason Edgar Alvarado has laid the patios, walls, and chimneys that define the DMV's finest estates — structurally exact, hand-set, and built to outlast the homes they grace.
We do not install stone.
We inscribe it.
Every terrace, wall, and chimney we set is meant to be read by the generations who inherit it — level, silent, unmoved. That is the only standard Edgar has ever worked to.
We don't pour shortcuts. Every project begins below the surface — reinforced footings, engineered drainage, and a compacted base built to hold for decades. What you see is hand-laid natural stone. What lasts is the discipline underneath it.

For more than 36 years, Edgar Alvarado has worked the stone of the Washington region by hand — no classrooms, no shortcuts. Every technique he uses was proven on real jobsites, under real load, through decades of field leadership.
He is not a distant owner who signs a contract and disappears. He shows up. He reads the site. He sets the standard — and he does not leave until the work is right. That is why homeowners across Potomac, McLean, Bethesda, Georgetown, and the wider DMV trust him with their most valuable investment: their home.
Integrity over shortcuts. Precision over speed. Stonework that performs for decades, elevates the home, and carries the legacy of true masonry leadership.
Edgar Alvarado didn't come to stone looking for a career. He came looking for mastery — and never left. While others chased the next trend, he spent three and a half decades learning what only time can teach: how stone moves, how water finds its way, how a wall built right outlives the hands that laid it.
Today that same discipline runs through every ESM project. One trade. Done one way. The right way.
Edgar begins in the trade beside his father and his older brother — both masons — learning wet-set mortar and structural stonework the way it was built for centuries.
Two decades of estate work across McLean, Potomac, and Bethesda build a reputation among the region's finest homes and designers.
A fully insured, owner-operated firm — still led personally by Edgar on every job, now backed by a hand-picked crew held to his standard.
Every terrace, wall, and chimney we set is built to be inherited — the work that outlasts us all.
“Anyone can lay a stone. It takes thirty-six years to know it will still be there in a hundred.” — Edgar Alvarado, Master Mason
Natural flagstone, bluestone, fieldstone, and cobble — laid across estates throughout the Washington metropolitan region.












Open a town to see every commission we have set there — the stone, the details, and what that ground asks of it.
VirginiaMcLeanPool decks · hillside staircases · fieldstone fireplacesVisit the McLean page →
MarylandPotomacChimneys · pavilions · outdoor kitchensVisit the Potomac page →
VirginiaFalls ChurchGrand staircases · Blue Select steps & columnsVisit the Falls Church page →
VirginiaArlingtonFlagstone patios · seating wallsVisit the Arlington page →
D.C.WashingtonWater gardens · walls & stepsVisit the D.C. page →Selected estates across the capital region — each one hand-set by Edgar and his crew.
Stone is set when the ground is ready. The calendar is set long before. Each winter, Edgar opens a limited book of spring commissions — walked, designed, and priced in the quiet months, and built first when the season breaks.
Edgar walks your property this winter. Design, stone selection, and drainage are settled while the ground rests.
Your commission is priced and placed in the Book. One deposit holds your spring start window.
Reserved estates are scheduled before the season opens to new requests — the first start dates of the year.
From six feet of weeds to a terrace built to last.
Another yard. Same standard.
Raw footage from active jobsites — stone cut, set, and finished by hand. No staging, no stock.
New work from the field, every week — follow @edgarstonemasonry
Edgar is on every job, start to finish — not a salesman, not a subcontractor. When you hire Edgar Stone Masonry, the hands that quote the work are the hands that build it. That's rare in this trade, and it's the reason our clients call us back for the next project, and the one after that.
Edgar leads every project personally, supported by hand-picked lead masons held to one exacting standard. As we take on select estates across the DMV, our crews grow — but the standard never does.
Since 1988If it’s stone, it’s ours. The heavy, structural work other crews won’t touch — engineered from the base up, set by the same master hands for thirty-six years. Not placed. Built.
Hand-laid natural stone terraces, courtyards, and entertaining spaces.
Explore →Natural stone and boulder walls — structural, sculptural, and built to hold.
Explore →Full-height chimneys, columns, and load-bearing stone facades.
Explore →Belgian cobble borders and premium paver fields set on engineered, reinforced bases.
Explore →Curved stone steps and walkways that move through a landscape with intent.
Explore →Fireplaces, kitchens, fire features, and water features in natural stone.
Explore →Most crews lay stone on sand. It looks right for a season — then the first freeze lifts it. We build the way the old masons did. Every step, by hand.

We dig to solid ground and build a reinforced, drained base — so water leaves and nothing shifts.

Each stone is measured and cut on the wet saw to fit its exact place. No gaps forced, no corners faked.

Every stone is bedded in mortar, not sand. Hand-fit, leveled, and locked to hold through freeze and thaw.

The cap stone is placed and tapped into a perfect level by hand — the finishing touch that locks the whole piece together.

Edgar stands behind what his hands build — five years in writing, ten on the base. Clean site, honest timeline, a result the family inherits.
A single cut on the wet saw can make or break an entire installation. Our crew works with the finest imported stone — measured, scored, and cut to a tolerance you can run your hand across and never feel.
This is the level of craft behind every ESM project, seen or unseen.
Every project is directed by master mason Edgar Alvarado and the construction discipline he has proven over three decades.
Natural stone, fieldstone, flagstone, and bluestone — chosen for durability, structural strength, and refined appearance. No low-grade substitutes.
Excavation, drainage, compaction, and footings done correctly before a single stone is set — so the work stays true for decades.
Five years on every new stone commission, ten years on the base beneath it — and it stays with the house if you sell. See the warranty →
We don't cut corners on material. Every project starts with full-range, premium natural stone — selected for strength, color, and the way it ages. No low-grade substitutes, ever.

Pennsylvania flagstone in natural earth tones — the signature of a hand-laid terrace.

Dense, cool-toned, refined. The premium choice for patios and steps.

Granite cobble for driveway borders and edging that holds its line for generations.

Hand-split boulders and fieldstone for walls that look like they grew there.
Every stone is hand-selected and sourced from the region's most trusted suppliers — because the material is the foundation of the craft.
Open The Stone Library →Design it in Stone Studio →A designer does not keep a mason on staff. They find one — and for over three decades, the region's leading designers and landscape architects have brought their drawings to Edgar. A plan is only as good as the hands that set it. We don't redraw the vision. We build it.
We read plans and hold detail. Elevations, joints, radii, coursing — set as specified, not as convenient.
Clean staging, protected grounds, and a crew that respects the household and the wider project schedule.
We don't sell design. We set stone — and we have done nothing else for over thirty-six years.
We have been the hands behind this region's finest designed landscapes for over thirty years. Architects, landscape designers and builders: we accept a limited number of collaborations each season.
Start a Conversation
EngineeringEvery spring, patios across McLean, Potomac and Bethesda come out of winter a little less level than they went in. The cause is almost never the stone.
Read →
StoneSame family of stone, two very different terraces. What the grades and finishes mean — and how to pick the one your house is asking for.
Read →
CareNatural stone is built for winter. What hurts it is how it gets treated in winter. Five rules for the months ahead.
Read →The questions homeowners ask before they trust someone with their property — answered the way Edgar would answer them on site.
Commission the stone that outlives you.
Edgar personally walks every site before a single figure is written. Estates are accepted by private consultation — a limited number each season.
We take on a select number of estates each season. Tell us about your project — Edgar will walk the site himself, assess the work, and prepare a detailed proposal. No charge, no pressure, no middleman. Just the master, and your stone.
Prefer to be guided? Plan it in sixty seconds →Thank you for reaching out to Edgar Stone Masonry. A member of our team will personally review your project and respond within 24–48 hours.
Luxury isn't loud. It's built right.