Basement finishing: a whole new floor.
Tired of the unfinished space under your house? Picture a hangout with a wet bar, a guest room, or a full lower level with its own bath. We frame it, wire it, and plumb it with our own crews. So the trades never wait on each other. You get one team and one written proposal.
What kind of basement are you picturing?
Most people who call us land in one of the four projects below. Whichever one fits your house, the work underneath is the same. A basement finish is a stack of trades, each one waiting on the one before it. We lay out every trade in one written proposal before anyone starts, then run it with one named project manager. The wiring and the plumbing are both our own crew, roughed in the same day, so the job never stalls.
01 You want one big open room to live in
The most common scope, usually 1,000-2,000 sqft: an open main area with recessed lighting and flooring, often a wet bar and an adjacent half-bath. Includes framing the perimeter and interior walls, R-15 to R-19 foundation insulation and R-13 to R-19 rim-joist insulation per Virginia code, electrical (a 60A or 100A subpanel, branch circuits, recessed lighting, dimmer zones, low-voltage pre-wire for ethernet and audio), drywall and paint, flooring (LVP, carpet, engineered hardwood, or polished concrete), trim, interior doors, and hardwired interconnected smoke and CO detectors. Typical: 8-12 weeks on site.
02 You need a real bathroom and a bedroom down there
The most common configuration: an open main area plus a full bath and a bedroom with egress. Adds plumbing (drain, vent, and supply rough-in for the bathroom and wet bar, handled in-house as of our 2026 Virginia plumbing license), egress window install per IRC R310 (foundation wall cut, Boman Kemp window well, window framing), bedroom electrical on a separate circuit, and full-bathroom waterproofing with Schluter Kerdi on shower walls and floors. See our basement bathroom and basement bedroom pages. Typical: 10-14 weeks on site.
03 You want the basement to do something special
For homeowners adding a home theater build-out (in-wall speakers, projector pre-wire, acoustic treatment), a wine cellar (climate-controlled space with custom racks), an in-law-suite kitchenette, a sauna or steam shower, or custom millwork beyond standard finishes. The same one-contractor, same-day rough-in structure applies: Class B Builder, Master Electrician, and plumbing all on one schedule, all in-house. These higher-end finishes typically run $100K-$150K+ and add 2-4 weeks to the typical timeline.
04 Your basement is already finished and needs one thing fixed
When the basement is already finished but a bedroom does not have IRC R310-compliant egress, when adding a basement bathroom to an already-finished space, or when installing an egress window on its own. A standalone egress retrofit typically runs 1-2 weeks and $4K-$8K, and is often required to legally sell a home with a basement bedroom that does not currently have egress. See the standalone pages: Basement Bathroom, Basement Bedroom, and Basement Egress Window.
More trades than a kitchen, more code than either
A basement finish needs framing, electrical, and plumbing all in one project window: more trades than a kitchen, more square footage than a bathroom, more code requirements than either. That is the structural reason this is Anson's most-booked Remodeling category. Three licenses, one company, one schedule. No 6-week delay waiting on a plumbing sub before drywall can close.
Framing to rough-in to drywall, one crew
The standard Anson basement sequence: framing complete (perimeter, interior walls, soffits), then electrical and plumbing rough-in the same week, same crew (subpanel per NEC 250.32 grounding, branch circuits, recessed lighting boxes, drain/vent/supply for the bath or wet bar), then a combined inspection, then drywall, insulation, and finishes.
Moisture-first basement finishing
Basements fail most often from moisture. We assess existing waterproofing and the sump pump during the consultation; if either needs upgrading, we surface it before starting the finish. Foundation wall insulation per Virginia code (R-15 to R-19), rim-joist insulation (R-13 to R-19), and a pressure-treated bottom plate on wall framing to break the moisture-wicking path from the concrete.
Three permits, a schedule of values
Full basement finishes typically require all three permits. We pull building, electrical, and plumbing in your jurisdiction (Prince William, Fairfax, Loudoun, Arlington, or your independent city). Permit lead time in NoVA runs 1-4 weeks. One contract with a schedule of values: deposit, framing, rough-in, drywall, flooring, final.
Square D, Eaton, Siemens, sized for your plans
A 60A or 100A subpanel dedicated to the basement is standard. We typically match the main panel brand for breaker compatibility: Square D (Schneider) QO or Homeline, Eaton CH, or Siemens. The subpanel is sized for your actual basement plans plus reasonable future growth, not the bare-minimum code requirement. Branch circuits dedicated where you will actually plug things in. Outlets positioned for your real furniture plan. Low-voltage pre-wire for ethernet and audio routed during rough-in. If your main panel needs to come out first, see panel replacement.
Boman Kemp wells, foundation cuts in-house
IRC R310 egress is required on every basement bedroom: an emergency escape opening of at least 5.7 sqft, 24-inch clear height, 20-inch clear width, sill height no higher than 44 inches, with a window well and a permanent ladder if the sill is below grade. Boman Kemp egress window wells are our standard (Bilco is an alternative for specific applications).
LVP, engineered hardwood, drop vs. drywall
LVP (luxury vinyl plank) is the most-common basement floor in 2026 NoVA basements: moisture-resistant, durable, $5-$10/sqft installed (LifeProof, CoreLuxe, Pergo Outlast). Engineered hardwood runs $10-$15+/sqft installed for higher-end spaces. Carpet for replaceability in moisture-prone areas; polished concrete for an industrial, modern look. Ceiling choice is a drop ceiling (cheaper, mechanical-access-friendly) versus a drywall ceiling (a finished look with strategic access panels).
What finishing your basement actually looks like
It's the same three steps as every Anson job, with one part that's all basement: three trades and three permits, lined up so the rough-in never waits on a sub. We pull the permits and run the schedule. You stay out of it.
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Free consultation on site (45-60 minutes)
Brad personally runs most basement consultations to handle the panel-capacity check, scope the moisture and egress conditions, and assess the basement-bath or wet-bar plumbing now that it is in-house. He walks the unfinished space with you and asks the questions that shape a real plan: where the TV goes, how many bedrooms, whether the wet bar is in scope, who the basement is actually for. No high-pressure design pitches. No deposit asked for at the door.
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Written proposal (within 48 hours)
A line-by-line written proposal covering every trade's scope, fixed pricing, the permit plan, the timeline broken out by week, and a payment schedule tied to project milestones. Explicit plumbing line items (rough, trim, and fixtures for the basement bath or wet bar), not "plumbing sub coordination" placeholders. No vague electrical-allowance line items. No "to be determined" placeholders.
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Execution with a named PM (8-14 weeks on site)
The same crew runs framing through finish. Electrical and plumbing rough-in happen the same day, same crew, with one combined inspection. Schluter Kerdi waterproofing goes on the basement bathroom shower walls and floors where scoped. Weekly photo updates throughout the build. A final walkthrough on every basement finish, regardless of size, with any punch-list items documented and resolved before sign-off. Manufacturer warranties (subpanel, flooring, fixtures) handed over at walkthrough.
Basement-finish pricing, and what shapes the number
Basement-finish pricing turns on a handful of variables: the square footage (most NoVA basements run 1,000-2,000 sqft), whether a bathroom is included (adds $15K-$30K), whether a wet bar is included (adds $8K-$20K), whether a bedroom needs egress (adds $5K-$10K for the egress install), the flooring tier (LVP versus engineered hardwood versus polished concrete), the ceiling type (drop versus drywall), and any top-tier features (home theater build-out, wine cellar, sauna, in-law-suite kitchenette).
What a basement finish looks like in practice
"A 600-square-foot single-room basement finish is the same job, mentally, as a 1,400-square-foot full lower level with a bedroom, bathroom, and wet bar. We just have fewer trades on site for fewer weeks. Same proposal, same project manager, same walkthrough at the end. The job size does not change the standard."
Why homeowners hand us the whole basement and stop worrying about it
A Master Electrician walks your basement first
Brad Anson is a Virginia Master Electrician (Shreve/McGonegal lineage), Class B Builder, and Virginia plumbing license-holder as of 2026. He is on most basement consultations himself, checking whether your panel can carry the new load and reading the moisture and egress before anyone talks price.
The wires and the pipes are both our own people
There is no subbed electrician and no subbed plumber to chase down between stages. Our own crew sets the subpanel and runs the bathroom rough-in on the same day, and the named project manager who scoped your basement is the one who hands it back to you at the walkthrough.
Every trade priced in writing before we touch a stud
One proposal lays out framing, electrical, and plumbing with fixed pricing and a schedule of values, no vague allowances. We pull all three permits ourselves, and the 5-10% contingency for what hides behind old walls only gets charged if we actually use it.
5.0 on Google, and basements are what we book most
Basement finishing is Anson's most-booked Remodeling category, on 20+ years of master-craftsman work and a 5.0 Google rating. The Heritage Hunt and Lake Ridge lower levels we finished this past year came in part from homeowners who called us back for the next room.
What homeowners ask us before they start
How long does a basement finish take?
Most full basement finishes take 8-14 weeks on site in Northern Virginia. A simpler open-plan scope, like a single open room with a closet and standard lighting, runs 8-12 weeks. A larger lower level with a full bathroom, a bedroom with an egress window, a wet bar, and home theater wiring runs 10-14 weeks.
Top-tier scope (a home theater build-out, a wine cellar, a sauna) adds another 2-4 weeks. The timeline depends on basement size, the scope of trades involved, the jurisdiction's inspection schedule, and whether the existing electrical panel needs an upgrade before work begins. We give you a realistic week-by-week schedule in your written proposal and flag any risk factors up front. Because electrical and plumbing are both in-house, the rough-in does not stall waiting on an outside sub between stages.
How much does basement finishing cost in Northern Virginia?
Mid-range full basement finishes in Northern Virginia typically run $40K-$90K (an open-plan main area with standard finishes and an optional half-bath). Higher-end finishes run $100K-$150K+ (a full bath, a bedroom with egress, a wet bar, top-tier finishes, and optional home theater, wine cellar, or sauna). A standalone egress window install runs $4K-$8K.
A 600-square-foot open finished space with standard lighting and a single closet sits at the lower end. Adding a bathroom adds roughly $15K-$30K; a wet bar adds $8K-$20K; a bedroom with egress adds $5K-$10K for the egress install. Flooring tier (LVP versus engineered hardwood versus polished concrete) and ceiling type (drop versus drywall) move the number too. We provide exact pricing in your written proposal after a panel-capacity check and a walkthrough, with no allowance line items and no surprises after work begins.
Do I need to address moisture before finishing the basement?
Yes, almost always. We assess your existing waterproofing and sump pump during the consultation. If either is at end of life or has a known issue, we address it before framing starts. We do not finish over a moisture problem. We fix it first.
The common moisture issues we find during consultations: sump pumps at end of life or with no battery backup (Zoeller, Wayne, and Liberty are the residential pumps we typically install), foundation cracks, inadequate exterior grading, and old foam board sitting against bare concrete. We frame on a pressure-treated bottom plate to break the moisture-wicking path from the slab. For deeper waterproofing such as a French drain or exterior excavation, we coordinate with a specialist outside our Class B scope, and we tell you that up front rather than burying it.
Do you handle permits and inspections?
Yes, we pull all permits and schedule all inspections as part of every basement finish. A full finish with a bath or wet bar typically requires three permits: building, electrical, and plumbing. We pull all three in your jurisdiction and walk the inspector through the job.
Basement work requires permits in every Northern Virginia jurisdiction (Prince William County, Fairfax County, the City of Manassas, Manassas Park, Loudoun County, Arlington, and the rest). Each jurisdiction has its own application process and inspection schedule. Permit costs are itemized in our proposal, not buried as an allowance, and permit lead time in NoVA usually runs 1-4 weeks. You will not be standing in line at a county office or fielding calls from inspectors.
Do I need a subpanel for my basement?
Yes, most basement finishes in Northern Virginia require a subpanel. A finished basement adds 30 to 60 amps of load: lighting, outlets, HVAC adjustments, and appliances if there is a wet bar. Most NoVA homes built before 2000 do not have main-panel headroom for that. A 60A or 100A subpanel dedicated to the basement provides the capacity.
The subpanel also simplifies any future electrical work down there and isolates the basement from the rest of the home for serviceability. We assess your existing panel during the consultation. If your main panel is one of the older Federal Pacific Stab-Lok or Zinsco models common in 1980s and 1990s NoVA homes, or has aluminum branch wiring, we will recommend replacing it before the basement work begins. We typically match the subpanel brand to the main panel (Square D, Eaton, or Siemens) for breaker compatibility.
Will I need a separate electrician or plumber for the basement work?
No. Anson handles both electrical and plumbing in-house: Master Electrician #2705178102 plus a Virginia plumbing license as of 2026. Bathroom and wet bar plumbing rough-in is our crew. Subpanel, branch circuits, recessed lighting, and smoke and CO hardwiring is our crew. There is no subbed electrician and no subbed plumber to coordinate.
Electrical and plumbing rough-in are synchronized to the same day, by the same crew, with one combined inspection. Tile for the basement bath, HVAC ductwork extension, and specialty work (a sauna heater circuit, for example) are coordinated through subcontractors we have worked with for years. The acquired-2026 plumbing license eliminated the single most-common basement-remodel delay we used to see: waiting on a plumbing sub between rough-in stages. That is a large part of why our basement finishes hold their schedule.
Other services basement finishes touch
A basement finish usually involves one or more of these. The first two sit under the Basements sub-hub.
Picturing what your basement could be? Let's walk it together.
Free 45-60 minute walkthrough. Written proposal within 48 hours. Class B Builder, Master Electrician, and plumbing, all under one roof. Three trades, one contract.
"We had three contractors quote our basement and Anson was the only one who actually walked us through what the electrical would need before talking price. The other two had vague electrical allowances. Anson handed us a proposal that broke out every circuit, every outlet, and the subpanel size, and the final number was within $300 of what they quoted. The basement has been finished for two years and we have not had a single issue."
Sarah K., Heritage Hunt, Gainesville