Main Street Home Improvement — Home Additions

Home additions in Northern Virginia

Home addition in Vienna, Northern Virginia

Room additions, second stories, sunrooms, and in-law suites for homes across Vienna, McLean, Fairfax, and Great Falls, planned and built by one accountable team and backed by our 10-year transferable labor warranty.

Home addition in Vienna, Northern Virginia
HOME ADDITIONS & EXPANSIONS

More room to live, without moving.

We build home additions for homeowners across Northern Virginia who love where they live but need more space. From room additions and sunrooms to second stories and in-law suites, we handle the plans, structure, and finish with one accountable team, and back every addition with our 10-year transferable labor warranty.

What we do.

Room additions

Add a bedroom, family room, or bonus room that blends seamlessly with your existing home.

Second-story additions

Build up instead of out with a second-story addition that adds space without losing your yard.

Sunrooms & four-season rooms

Bright, comfortable sunrooms and four-season rooms that connect you to the outdoors year round.

In-law & guest suites

Attached suites with their own space, comfort, and privacy for family, guests, or rental income.

Kitchen & suite expansions

Bump-outs and expansions that give your kitchen or primary suite the room it deserves.

Garage & bonus spaces

Garage additions, above-garage rooms, and bonus spaces built around how you live.

Thinking about an addition?

How we work.

1

Consultation & feasibility

We walk your home and lot, talk through goals and budget, and assess what's possible.

2

Design & plans

We develop the layout and plans and coordinate any structural or architectural needs.

3

Permits & approvals

We handle permitting and HOA or county approvals so you don't have to chase them.

4

Build

One team manages foundation through finish, tying the addition into your existing home.

5

Warranty

You're covered by our 10-year transferable labor warranty.

Building additions across Northern Virginia.

We build home additions throughout Northern Virginia, including:

Plus Arlington, Tysons, Oakton, Reston, Dunn Loring, Wolf Trap, Alexandria, Haymarket, Ashburn, and surrounding Northern Virginia communities.

HOME ADDITION FAQs

Common questions.

Still have a question? Call 703-587-7762 or contact us.

Additions vary widely with size, type, and complexity, a sunroom and a second-story addition are very different projects. Because they involve foundation, structure, and finish, we build a detailed scope and budget together up front.

Additions generally take a few months, longer than an interior remodel, because of design, permitting, foundation, and structural work. We give you a clear schedule before we start.

Yes, additions require permits and often HOA or county approvals. We handle the permitting and approval process for you, and we know the local requirements in Fairfax County and the surrounding areas.

That's the goal. We match rooflines, siding, trim, and finishes so the addition looks like it was always part of the house, not bolted on.

Yes. Every home addition is backed by our 10-year transferable labor warranty.

What our customers say.

Homeowners across Northern Virginia trust us for honest work and results that last.

Add the space your home is missing.

Tell us what you're picturing and we'll help you plan it, with a free, no-pressure consultation.