Custom building · remodeling · concrete
Custom homes and renovations built for Northern Virginia.
Design-build construction, additions, outdoor living and concrete—managed by one accountable team from the first site walk to the final walkthrough.
Who we are
A Northern Virginia builder that understands the entire property.
Blackline Builders is a Northern Virginia contractor for custom homes, renovations and concrete.
We work from the ground up: the footings and slab, the frame, the finishes and the drive out front. Because concrete is part of what we do, the work that holds a house up gets the same attention as the rooms you live in.
- Based in
- Manassas, Virginia
- We build
- Custom homes, renovations, additions and concrete
- Working in
- Loudoun, Fairfax, Prince William, Arlington and Fauquier
What we do
Custom building and remodeling services.
New homes, renovations, additions and outdoor living, and the concrete underneath and around all of it.
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New home construction
Custom homes designed around your lot and the way you live.
- Custom home building
- Modern farmhouse homes
- Design-build construction
- Tear-down & rebuild
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Renovation & remodeling
Whole houses, kitchens, baths and basements, reworked with care.
- High-end home remodels
- Whole-house renovations
- Kitchen renovations
- Bathroom renovations
- Basement finishing & remodels
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Additions & outdoor living
More room inside, and better places to be outside.
- Room & second-story additions
- Owner's suite additions
- In-law & multigenerational suites
- Covered porches & pavilions
- Decks & patios
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Concrete
Foundations, driveways, patios and walls, placed with the same care as the house.
- Foundations, footings & slabs
- Concrete driveways
- Patios, walkways & steps
- Retaining walls
- Stamped & decorative concrete
Why Blackline
Why Northern Virginia homeowners choose Blackline.
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Concrete and construction, planned together
We take on concrete work as well as the house above it. Footings, slabs, walks and driveways are planned with the build instead of being handed off at the end.
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One project manager from start to finish
One person keeps the schedule, the selections and the site moving, and is the person you call with a question.
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Designed for the ground it sits on
Soils change across Northern Virginia, from clay in eastern Loudoun and Fairfax to Piedmont soils further west. Foundations are designed for the site, not copied from the last one.
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Local reviews, planned for early
Each county and independent city runs its own permitting, and historic districts and planned communities add design review. We plan for those steps from the first conversation.
Process
A clear path from first walk to final walkthrough.
Six steps, in the same order every time, whether it is a new home, a renovation or a driveway.
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01
Conversation
Call or write to us about your lot, your house or your project. We listen first.
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02
On-site estimate
We walk the property with you, talk through goals and constraints, then follow up with an estimate.
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03
Design & selections
Plans, finishes and details are settled before anything is built.
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04
Proposal
A written proposal once the design and selections are defined.
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05
Permits & approvals
Applications and reviews with your county, city or community board.
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06
Build & walkthrough
From site work to final finishes, then a walkthrough together.
Service areas
Custom home building and remodeling across Northern Virginia.
Based in Manassas, we serve Loudoun, Fairfax, Prince William, Arlington and Fauquier counties, plus Alexandria, Fairfax and Manassas.
FAQ
Questions before you build or remodel.
Straight answers about areas, licensing, cost and scheduling. Anything else, ask us on site.
All questionsWe work across Loudoun County (Ashburn, Leesburg, Sterling, Aldie, Purcellville and Middleburg), Fairfax County (Reston, Herndon, Vienna, McLean, Great Falls, Centreville and Chantilly) and the City of Fairfax, Prince William County (Gainesville and Haymarket) and the City of Manassas, Arlington and Alexandria, and Fauquier County (Warrenton). We're based in Manassas.
Yes. Blackline Builders is a licensed Virginia contractor; we're happy to share license and insurance details during your consultation.
It depends on the lot and the site work it needs, the size and design of the house, the finishes you choose and the permitting requirements where you're building. Because every project is different, we price each one individually after an on-site visit.
Timing depends on the size and complexity of the design, your selections, the condition of the site and the permitting and review process in your county or city. We schedule each project individually after an on-site visit, once the scope is clear.
Fixed-price proposals are available once design and selections are defined. Ask us about it at your consultation.
Yes. We build custom homes, take on renovations and additions, and do concrete work. Concrete is also available as a standalone project, from driveways and patios to foundations and retaining walls.
Start a project
Bring us the lot—or the home you want to transform.
We'll meet you on site, walk the property with you and talk through what the work will take.