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Home additions in Northern Virginia
More room without moving: designed in 3D, engineered, permitted and built under one roof, with a two-year labor warranty. Licensed in Virginia, Maryland and DC.
★ 4.8 · 280+ reviews on Google and Houzz · Fully insured, including workers' comp
How we build additions
Home additions from engineering to the final walkthrough
The design, the engineering partner, the permits, the build and the warranty, under one roof.
Design in 3D
Your designer plans the new space with you and shows it in 3D on our showroom screen, so you can walk through it before anything is built.
Structural engineering
Our specialist partner Boz Engineering Group (Koray B., licensed civil engineer) handles the structural engineering, always under our supervision and our warranty.
Permits and inspections
We handle the whole permit process: the building permit, the trade permits, the scope, the county fees and every inspection. You never deal with the county.
Materials first
We order every material before we touch your home, and construction starts only when everything is in our own warehouse.
A clean job site
Our own truck drops a 14-foot container on demo day and takes it away when demolition is done.
Two-year labor warranty
Every project includes a two-year labor warranty. Most remodelers offer one year.
Addition types
Additions with a new kitchen or bathroom
Kitchens and bathrooms are what we build every day. If your plan is a kitchen addition or adds a bathroom, the same designers, cabinet lines and tile partners carry through: see kitchen remodeling and bathroom remodeling.
Licensed in VA, MD and DC
- Virginia
DPOR Class A #2705163164 · official lookup ↗ - Maryland
MHIC #110852 · official lookup ↗ - Washington, DC
DLCP #410526031952 · official lookup ↗
Fully insured, including workers' compensation. Certificate of insurance available on request.
Home addition cost
What a home addition costs
A starting point from our sold jobs. Your design and selections set the final price, and every proposal is calculated for your home.
Home addition
Priced from your designSize, foundation, structure, the rooms inside and your selections set the price.
How long it takes
Set by your design and permitsConstruction starts only when the design is final, every material is in our warehouse and the permits are in hand.
Sena tells you where yours lands on the first call, and your proposal is calculated line by line for your home. See home addition pricing and financing through independent lenders.
Talk about your addition →Our process
How a home addition works with us: 3 phases
You always know who is leading, what happens next and what you need to do.
Phase 1
Plan and design
Leads: Sena, then your designer- First call with Sena, our sales director
- Free in-home consultation and measurements
- 3D design on the showroom screen; change it until it is yours
- Material selections and your proposal
- Contract, then the hand-off meeting: final measurement with your designer and project manager
Phase 2
Order and permits
Leads: Our operations manager and permit department- Every material ordered and received in our warehouse
- We handle every permit and inspection
- Start date set by your designer, project manager, operations manager and Sena
- Your job-start email and preparation checklist
Phase 3
Build
Leads: Your project manager and lead technician- Demo day: our container arrives, the permit goes on the door
- Inspections scheduled by our team; we meet the inspector
- Countertop and glass partners measure; you approve their drawings
- Final walkthrough with your project manager; two-year warranty starts
Need more room?
Sena, our sales director, calls you back within 2 business hours, listens to what you need the new space for, and matches you with your designer.
Near you
Home additions near you
Local permits, nearby projects and the showroom closest to you.
Planning
Addition ideas and related services
Questions
Home addition FAQ: permits, engineering and licenses
Do I need a permit for a home addition?
Yes, a home addition needs a building permit, and the rules differ by county and city. We handle the whole permit process, from the building and trade permits to the county fees and every inspection, so you never deal with the county.
Who does the structural engineering?
Our specialist partner Boz Engineering Group (Koray B., licensed civil engineer) does the structural engineering for our projects, always under our supervision and our warranty.
Who designs the kitchen in a kitchen addition?
Your designer does. Kitchens are what we build every day: your designer plans the new kitchen in 3D on our showroom screen, and you pick the cabinets, counters and tile in person, from the same lines we install in every kitchen remodel.
Are you licensed to build additions?
We are licensed in Virginia (Class A, DPOR), Maryland (MHIC) and Washington, DC (DLCP), and fully insured, including workers' compensation. Each license number links to the state's official lookup at the bottom of every page.
Who does the work?
Our own project managers and lead technicians run every job. We bring in trusted specialist partners for countertops, glass and engineering, and extra crews when a schedule needs them, always under our supervision and our warranty.
Showrooms
Remodeling showrooms in Fairfax, Sterling and Bethesda
Open Monday to Saturday, 9 am to 5 pm. See cabinets, counters, tile and fixtures in person.