Edgar Stone Masonry  /  Flagstone & Bluestone Patios
Services · Flagstone & Bluestone Patios

Flagstone & bluestone patios, set to be inherited.

Terraces, courtyards and pool decks in natural stone — wet-set in mortar on a reinforced, drained concrete base, so the surface stays as level as the day it was finished.

Commissions

Terraces we’ve set by hand.

Real projects, photographed on site — every one hand-set by Edgar’s crew.

Flagstone Terrace — Potomac, MD · PA flagstone & wave wall · Edgar Stone Masonry
Flagstone Terrace
Potomac, MD · PA flagstone & wave wall
Flagstone Patio & Seating Walls — Arlington, VA · Bluestone caps · Edgar Stone Masonry
Flagstone Patio & Seating Walls
Arlington, VA · Bluestone caps
Thermal Bluestone — McLean, VA · Pool deck to front walk · Edgar Stone Masonry
Thermal Bluestone
McLean, VA · Pool deck to front walk
Bluestone Patio — Arlington, VA · Full-color flagstone · Edgar Stone Masonry
Bluestone Patio
Arlington, VA · Full-color flagstone
Blue Select Patio — Falls Church, VA · Steps & columns · Edgar Stone Masonry
Blue Select Patio
Falls Church, VA · Steps & columns
Circle Patio — North Potomac, MD · Flagstone & curved wall · Edgar Stone Masonry
Circle Patio
North Potomac, MD · Flagstone & curved wall
How we build it

The part you never see is the part that lasts.

01

Excavate to solid ground

Soil and organic material come out, and the grade is set so water leaves the patio instead of sitting under it.

02

A reinforced, drained base

Compacted stone and a reinforced concrete base — the part you never see, and the part that decides whether it lasts.

03

Cut to its place

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

04

Wet-set in mortar

Each stone is bedded in mortar — not sand — leveled by hand, with a gentle pitch so rain runs off.

05

Joint & finish

Joints are packed and tooled, edges and steps are capped, and the site is cleaned to the last stone.

The stone

Chosen to outlast the house.

  • Blue Select bluestone — dense, uniform blue-gray; the refined, formal choice
  • Full-range Pennsylvania flagstone — natural earth tones for a warmer terrace
  • Thermal-finished bluestone — an even, textured surface for pool decks and treads

Compare every stone in The Stone Library.

The Edgar Warranty. Five years on every new stone commission, ten years on the base beneath it — transferable to the next owner. Read it.
Questions

Before you commission.

Flagstone or bluestone — what is the difference?

Bluestone is a dense sandstone quarried in Pennsylvania and New York. “Blue Select” is its most uniform blue-gray grade; “full-range” keeps the stone’s natural mix of earth tones. Both are flagstone — flat, split stone — and we wet-set both the same way.

Will a patio heave in winter?

Heaving comes from water in the base freezing and expanding. A drained, reinforced base with every stone bedded in mortar keeps water out of the places where it does that damage.

Can you build around a pool?

Yes — pool decks and surrounds are some of our most exacting work. We set thermal-finished stone for an even, slip-resistant surface, dead level against the coping.

How long does a patio take?

It depends on size, access and the base the site needs. Your proposal states approximate start and completion dates before you sign.

We build across D.C., Maryland and Northern Virginia — see our work in McLean · Potomac · Falls Church · Arlington · Washington, D.C.
More of what we build: Retaining & Seat Walls · Chimneys, Fireplaces & Veneer · Outdoor Kitchens & Living · Steps, Walkways & Borders · Repair & Restoration.

Final Folio — The Commission

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.

Not sure where to start? Plan your commission in sixty seconds →

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