Paver Driveways in Fairfax, Arlington & Alexandria

Two Ways to Build a Paver Driveway — and the One We Recommend

The base does the structural work; the paver is the wear surface. There are two legitimate ways to build that base, and we install both — drawing on 20+ years of hands-on structural concrete and hardscape experience. Most paver crews only offer the first system below. Because Tuck GC is a structural concrete company, not just a landscaping outfit, our standard build sets the pavers over a poured concrete foundation. Here are both systems, top to bottom, with the honest pros and cons of each.

System 1: The Concrete-Base Build (Our Standard & Recommendation)

Think of it this way: we first build you a normal concrete driveway like the ones we pour across Northern Virginia — then add a layer of strength and beauty on top of it.

• 1. Excavation & Compacted Stone Bed We excavate to the design depth, stripping the topsoil and soft surface material, then install approximately 4 inches of compacted VDOT 21A crushed stone — the same draining, load-bearing bed we place under every concrete driveway we build.
• 2. The 4,000 PSI Concrete Foundation Over the stone we pour approximately 4 inches of 4,000 PSI concrete. This slab is the structure: it carries the load and bridges soft spots in the subgrade, so the surface resists the rutting and washout that a loose aggregate bed can develop.
• 3. Wet-Set Mortar Bed Each paver is set into a wet mortar bed bonded to the slab, so the finished surface acts as one monolithic assembly instead of thousands of floating pieces.
• 4. Polymeric Sand Joints & Mortared Edge We typically finish the joints with high-grade polymeric sand and run mortar along the outer edge of the perimeter course to contain it. There is no bond beam on this build because none is needed — the concrete slab itself is the edge-to-edge foundation.

Why we lean this way: tire paths resist rutting, individual pavers are bonded to the slab instead of floating free, and the base is far more resistant to the settlement that sends aggregate systems in for re-leveling and resetting years down the road. And because structural concrete is our core trade, we deliver this build at a price point similar to what many installers charge for an aggregate-only system — a superior assembly for comparable money. The honest tradeoffs: it is a rigid system, so mortar and joints behave like the rest of exterior masonry (see The Tuck Standard), and it is an impervious surface, so it is not the right fit where a project calls for permeable pavers.

System 2: The Aggregate-Base Build (The Floating System)

The traditional flexible method: the pavers float on a deep bed of compacted stone. Built correctly, it is a proven, legitimate system — and it is the required base for permeable paver driveways, which must drain freely through an open-graded stone bed (you cannot put permeable pavers over concrete). Here is that build:

• 1. Deep Excavation (10-14 Inches) We dig out 10 to 14 inches below finished grade — roughly double a patio dig — to strip the organic topsoil and the soft, disturbed material sitting over the Marine Clay that underlies Fairfax, Prince William, and the older Arlington and Alexandria neighborhoods. That clay can run ten feet deep — no residential excavation digs past it — so the goal is not to chase firm soil; it is to reach the design depth, compact what remains, and stabilize it with the geotextile and stone layers that follow, so the driveway rides on an engineered base above the clay.
• 2. Geotextile Stabilization Fabric The step most contractors skip. We roll a heavy woven geotextile over the clay before any stone goes down. The fabric is a separation layer: it keeps the stone base from punching into wet clay and slowly sinking, which is what creates the wheel ruts you see in failed driveways. It also spreads the wheel load across a wider footprint, the way reinforcement does in concrete.
• 3. The "21A" Structural Base We install 8 to 10 inches of VDOT-spec 21A crushed stone — a dense-graded aggregate that locks together under compaction. We place it in 3-inch lifts and compact each lift with a reversible plate compactor before the next goes down, because stone dumped deep and compacted once stays loose in the middle. The result is a stiff, load-bearing slab of stone that carries the vehicle, not the soil.
• 4. Concrete Bond Beam (The Edge Restraint) Pavers fail at the edges first. Plastic edging spiked into the ground heaves loose with the first hard frost, and the perimeter pavers start drifting into the lawn. Instead, Tuck GC pours a concrete bond beam: we trowel wet concrete along the full perimeter, locking the outer course of pavers into a continuous wedge of cured cement. That haunch is what gives a driveway its lateral interlock and keeps every paver inside it tight.
• 5. Polymeric Sand Locking We sweep high-grade polymeric sand into the joints and vibrate it down so it fills the full paver depth. Misted with water, the binders set up firm but semi-flexible — it holds the field in tension (true interlock), sheds water, and chokes out the weed seeds and ants that exploit loose joint sand.

The honest tradeoffs: a floating system flexes with frost and repairs by lifting and relaying individual pavers — but the stone bed is doing all the structural work under every tire, and even a well-built aggregate driveway can eventually develop wheel-path settlement that calls for lifting and re-leveling sections. It is the right system for permeable projects and for designs that specifically call for a fully flexible surface.

Which system is right for you? For most paver driveways we recommend — and typically install — the concrete-base build. We steer you to the aggregate build when the project is permeable, when zoning pushes you toward a pervious surface, or when the design calls for a floating system. Either way, the same workmanship standards and the same warranty in your contract apply.

Material Science: Pavers vs. The Rest

How interlocking concrete pavers (ICP) compare to stamped concrete and asphalt on the specs that actually matter in a freeze-thaw climate — strength, how the surface handles ground movement, and how it repairs.

Choosing a brand: We are a multi-brand paver installer, so we match the manufacturer to your home rather than to our warehouse. We are an experienced installer of Techo-Bloc (our primary line for driveways, with the deepest catalog of vehicular-rated, freeze-thaw-tough pavers), as well as EP Henry and Nicolock. We also install Belgard, Cambridge Pavingstones, Unilock and Hanover, plus traditional clay brick when a colonial or estate look calls for it. For a driveway the key spec is paver thickness and ASTM vehicular rating — most patio-weight units are too thin to carry SUVs — so we steer every brand selection toward its heavy-duty driveway series.

The Northern Virginia Factor: Zoning & Permeable Pavers

The "Lot Coverage" Issue: In crowded areas like Arlington, Falls Church, and Vienna, zoning laws strictly limit how much of your lot can be covered by "impervious" surfaces (concrete/asphalt) to prevent flooding. If you want to widen your driveway, you might hit this limit.

The Permeable Solution (PICP): We specialize in Permeable Interlocking Concrete Pavers. These systems use open-graded stone bases that allow rainwater to drain through the driveway and into the ground. Fairfax County views this as a "Best Management Practice" (BMP), often allowing you to build a larger driveway than would be permitted with standard concrete.

Note that the impervious-surface and lot-coverage limits above are local county and city zoning rules governing the private driveway surface itself. The driveway apron — the section that ties into the public road — is a separate right-of-way slab with its own permit; see our Driveways & Aprons hub for the apron permit pathway in your jurisdiction.

What Drives the Cost of a Paver Driveway in Fairfax, Arlington & Alexandria

Paver driveways carry more cost than poured concrete because every unit is laid by hand, and the price tracks the labor and the build beneath the surface. The biggest drivers are the square footage and the paver line you choose — Techo-Bloc, EP Henry, Belgard, Cambridge Pavingstones, Nicolock, Unilock, Hanover, or clay brick all price differently, and driveway-rated thicker units cost more than patio-weight pavers. Demolition and excavation, and the structural base beneath — compacted 21A stone topped with a 4,000 PSI concrete foundation on our standard build, or a deep compacted aggregate bed with geotextile and a bond-beam edge on the floating system — are where most of the material goes. Pattern complexity, borders, demolition of an old surface, permits for any apron or widening, and site access on older Arlington and Alexandria lots round out the estimate. We quote every paver driveway individually rather than post a misleading per-square-foot price.