Stone fire pit with a seating wall on a flagstone patio

Porches, Decks and Patios in Chantilly

Our shop is on Gum Spring Road, minutes from most Chantilly neighborhoods.

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Chantilly is home for JK General Contractor. Our shop is on Gum Spring Road, so most Chantilly projects are a short drive for our crews and trucks.

Two Counties, Two Permit Offices

Chantilly sits on the line between Fairfax and Loudoun counties. Most addresses in ZIP code 20151 are in Fairfax County, while much of 20152, including South Riding, is in Loudoun County. Each county has its own permit process, and we work with both.

That line matters more than most homeowners expect. Two houses a mile apart, both with a Chantilly address, can go to different permit offices with different forms and review times. We check the county for your street before we draw anything, so the plans are made for the office that will review them.

Common Projects for Chantilly Homes

Most Chantilly subdivisions went up between the late 1980s and the 2000s, so their original decks and patios are wearing out now. Common projects here include:

Why hire a builder based in Chantilly?

Because being nearby changes how the job runs. Our crews start their day at your house instead of on the road, the trucks and equipment come from a few miles away, and the concrete for footings comes from our sister company in Sterling, just up the road. And if anything needs attention after the job, it is a quick trip back.

HOA Review

Most Chantilly and South Riding neighborhoods have an HOA with an architectural review step. We prepare the plans and material information the board needs and build once the approval is in hand.

What should I ask before replacing an old deck in Chantilly?

Ask what is under it. On a deck from the 1990s, the question is rarely the boards; it is whether the footings are deep enough, whether the ledger is still sound and flashed, and whether the framing can carry what you want to add, such as a roof. We look at all three at the estimate. If the structure is worn, we price a full replacement. If part of it can carry a screened room, we tell you that too.

What does a Chantilly estimate look like?

A visit to the house. After you call or send the form, we phone you back the same or next business day to pick a time. We walk the yard or the front of the house with you, measure, look at the grade and the old structure, and talk through materials with samples in hand. Then you get a firm written price for the scope we agreed on, with the county and HOA steps listed, so you know what happens next and in what order.

Chantilly and its neighbors

We build all over Chantilly and in the communities next to it: South Riding and Aldie to the west in Loudoun, and Centreville to the south in Fairfax. For the wider area, see our Loudoun County and Fairfax County pages, or our Prince William County page for Haymarket and Gainesville, or the full list on Areas We Serve.

Frequently Asked Questions

Is my Chantilly address in Fairfax County or Loudoun County?

It depends on your ZIP code and street. Most of 20151 is in Fairfax County, and much of 20152, including South Riding, is in Loudoun County. JK General Contractor confirms the county at the estimate and files with the right permit office.

Can you replace the original deck on my house?

Yes. JK General Contractor removes the old deck, installs new footings and framing, and builds the new deck in composite.

Where is JK General Contractor's shop?

At 26158 Gum Spring Rd, Chantilly, VA 20152. JK General Contractor's office is open on weekdays, and estimates are done at your house.

Which project do Chantilly homeowners ask for most?

Replacing an aging deck, often with a screened porch on part of it, and adding a stone patio below. JK General Contractor builds all three as one project.

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