Flagstone is natural stone split into flat slabs, and a flagstone patio has a look that pavers cannot match: no two pieces share quite the same color, grain or edge. It suits homeowners who want real stone underfoot, whether the patio wraps a fire pit, holds the dining table or meets the bottom of the deck stairs.
We build flagstone patios across Northern Virginia, and South Riding, Brambleton and Aldie are close to home: all three are Loudoun County communities a short drive from our shop on Gum Spring Road. As a flagstone patio builder, we run the whole job, from stone samples at the first visit to the final walkthrough.
What we build
- Square-cut flagstone patios: rectangles and squares laid in a pattern
- Irregular flagstone patios: pieces with natural edges, fitted together like a puzzle
- Flagstone around a fire pit, with a curved seating wall if you want one
- A flagstone patio for an outdoor kitchen, or in front of an outdoor fireplace
- Flagstone walkways that match the patio, from the driveway or up to the front stoop
- Flagstone over an old concrete patio, when that concrete is sound and not heaving
Flagstone is one of several patio stones in our patios and hardscapes work, and where the yard drops away, a retaining wall can hold the ground level for it.
Flagstone patio installation over a concrete slab
A new flagstone patio starts with digging. We dig out the patio area, Capitol Concrete pours a 4-inch concrete base, and we set its slope away from the house so rainwater heads for the yard. The flagstone is then fitted and laid over that slab; the pieces vary in thickness, and the flat slab gives every one of them the same solid floor.
Plan on a few days to two weeks on site for most flagstone patios, with size, digging and steps setting the pace.
Square-cut or irregular flagstone?
Both are real flagstone; the shape of the pieces is what changes the feel of the patio.
| Square-cut flagstone | Irregular flagstone | |
|---|---|---|
| The pieces | Cut into rectangles and squares | Natural broken edges, no two alike |
| The joints | Straight lines in a repeating pattern | Joints that wander between the stones |
| The feel | Tailored; suits straight edges | Relaxed; suits curves |
We bring samples of both to the estimate, and pavers too if you want to compare.
Hiring a stone patio contractor: flagstone or pavers?
Choose flagstone for the look of natural stone, and pavers for a long list of colors and shapes; natural stone usually costs more. If you are still deciding, compare our paver patios, or look at travertine patios for a lighter natural stone.
Want to see flagstone samples?
Call or write, and we will bring square-cut and irregular flagstone to your yard so you can judge both against the house.
Where We Build Flagstone Patios
A flagstone patio at ground level usually needs no county building permit, though most HOAs review it first; we put together the drawing, the stone samples and the product sheets the review board wants to see. If steps or walls bring in a county permit, we file it in Loudoun, Fairfax or Prince William County.
What drives flagstone patio cost?
Mostly the stone: natural stone usually costs more than pavers, and the flagstone you pick moves the price. The size, the ground, the access and any extras move it the same way they do on a paver patio. Your price comes in writing after we have seen the yard, as one firm number rather than a range.
Can flagstone go over an old concrete patio?
Sometimes. Flagstone goes over old concrete only when that concrete is sound and not heaving, and then the old slab does the job of the base. A slab that has cracked and lifted would carry its movement up into the stone, so it comes out and the patio is rebuilt on a new base from Capitol Concrete. We look at the old slab at the estimate and tell you which way it goes.
Flagstone patios in South Riding and Brambleton: the HOA review
South Riding and Brambleton both have architectural review boards, and with natural stone the board is looking at the stone itself, so a sample goes in with the application; the rest of the review runs as it does for a paver patio. Aldie, to the west, is in Loudoun County as well, so any permit there comes from the same county office.
