Fairfax · Loudoun · Prince William · Class A Licensed

Northern Virginia's Premier General Contractor

Custom decks, screen porches, sunrooms & home additions. Designed in 3D, permitted by us, and built to last across Fairfax, Loudoun & Prince William County.

Get My Free Quote See Our Work
Scroll

Most Northern Virginia contractors leave you chasing updates. We don't. From the first 3D sketch to the final walk-through, one accountable Class A team handles design, permits, and the build, so you always know exactly what's next.

  • 0Years building NoVA
  • 0Avg. review rating
  • 0Counties served
  • AClass license, insured
What we build

One contractor.
The whole project.

Custom multi-level composite deck builder in Northern Virginia
01

Decks & Outdoor Living

Custom decks, pergolas & privacy screens engineered for how you actually use your backyard.

Screen porch and sunroom addition in Fairfax County, VA
02

Screen Porches & Sunrooms

Home addition contractor framing a room addition in Northern Virginia
03

Home Additions & Garages

Concrete driveway and garage construction in Northern Virginia
04

Concrete, Garages & Siding

Concrete driveways, multi-car garages and full exterior siding. The finishing touches that lift your whole property.

  • Exterior siding
  • Concrete driveways
  • Multi-car garages
  • Large-scale remodeling
  • Permit acquisition
OSSA commercial construction crew framing a condominium project in Northern Virginia B2B Division
Commercial & Property Management

Commercial construction property managers rely on.

We bring the same Class A discipline to condo communities and commercial clients: structural work, renovations and repaints delivered on schedule, so you look good to the board.

  • Structural Framing & Drywall
  • Condominium & HOA Renovations
  • Commercial Painting
  • Balcony & Exterior Rebuilds
Explore Commercial Services
From plan to finished

See the vision become real.

Drag to reveal how a 3D concept turns into a built project. Every OSSA job starts as a plan you can see before we pour a footing.

Finished multi-level composite deck built by OSSA in Northern Virginia Finished build
3D design concept rendering of the deck before construction 3D concept
How it works

Seven steps. Zero surprises.

One accountable team from the first sketch to the final walk-through, so you always know exactly what's next.

  1. 01

    Discovery

    An on-site consultation where we listen to your goals, budget, and timeline before anything else.

  2. 02

    Photorealistic 3D Design

    Renderings on photos of your actual property, so you see it before we build it.

  3. 03

    Permitting & HOA

    We handle every county permit and HOA submission. You never chase paperwork.

  4. 04

    Foundation & Engineering

    Code-compliant footings engineered for Virginia soil and weather.

  5. 05

    Master Build

    Precision execution by an accountable, in-house crew, never subcontracted strangers.

  6. 06

    Precision Detailing

    Quality inspection and the finish work that separates good from flawless.

  7. 07

    Handoff & Warranty

    A final walk-through backed by a 2-year craftsmanship and 5+ year manufacturer warranty.

Recent work

Built across Northern Virginia.

Drag
Multi-level composite deck with pergola in Fairfax County, VA
Custom Deck & Outdoor LivingFairfax County, VA
Composite deck with integrated lighting at twilight in Reston, VA
Deck with Integrated LightingReston, VA
Premium sunroom and screen porch addition in Loudoun County, VA
Screen Porch & SunroomLoudoun County, VA
Home addition framing by general contractor in Prince William County, VA
Home Addition · FramingPrince William County, VA
Low-maintenance composite deck build in Ashburn, VA
Low-Maintenance Composite DeckAshburn, VA
Concrete driveway and garage construction in Centreville, VA
Concrete Driveway & GarageCentreville, VA
Deck replacement and repair project in Reston, VA
Deck ReplacementReston, VA
Commercial condominium balcony rebuild in Northern Virginia
Condominium Balcony RebuildCommercial Division
4.9 ★ · Verified local reviews

Homeowners across NoVA trust OSSA.

Reviewed on
★★★★★ 4.9
★★★★★ Top Rated
★★★★★ Screened & Approved
★★★★★
"The care your crew showed handling our personal items, both on the deck replacement and the painting of the upper-level balcony areas, was amazing."
Suzi StoneReston, VA
★★★★★
"The manager gave the estimate in a professional manner and the team performed with excellence. They repaired my deck exactly as stated in their estimate. I will definitely use them again."
Mamie J.Rocky Mount, NC
★★★★★
"Worked fast. Definitely took my needs into account and were very communicative throughout the project."
Susan L.Reston, VA
★★★★★
"I had drywall sagging from my ceiling. OSSA sent a skilled person who figured out the best way to shore it up and finished within a day. He even touched up the paint, which wasn't part of the contract. It all looks great."
David B.Reston, VA
★★★★★
"We were very impressed with the deck work OSSA did for us. The materials were ordered and delivered quickly, the crew showed up on time, did a very good job, and completed it quickly."
Jerry P.Manassas, VA
★★★★★
"Your team is very professional, and they do outstanding work. I would highly recommend them for projects."
Cynthia L.Manassas, VA
Financing available

Build now, pay over time.

Flexible financing makes your project achievable on your schedule. Ask us about plans during your free consultation.

Explore Financing
Free, no-pressure quote

Let's talk about
your project.

Tell us what you have in mind. We'll follow up with clear next steps, usually within one business day.

No spam. We'll only use your details to discuss your project.