You bought your house for the upstairs. The basement was a bonus. Now your family's grown, you're working from home, the in-laws are visiting more, the kids need a place that isn't the living room — and there's a thousand square feet of unfinished space sitting under your feet.
We've been remodeling Miami Valley homes for more than 17 years from our showroom in Kettering. Basements are different from any other room — moisture, code, low ceilings, mechanicals across the joists — so we build them differently. Steel studs where wood is risky. Rigid foam against the foundation walls. Egress windows where code requires them.
Whole basements, partial basements, walkout basements. Same crew that builds our award-winning kitchens and baths upstairs.
We come to your house, look at the basement, and listen. You leave knowing what's possible and roughly what it costs.
Floor plans, elevations, fixture specs. Picked together at our Kettering showroom — every cabinet door, tile, and faucet on display.
We pull every permit. You don't talk to the building department. We know the inspectors and the timelines.
Framing, plumbing, electrical, HVAC. Inspections in sequence before anything gets covered up. The longest phase.
Drywall, basement flooring, trim, doors, hardware, fixtures. The room comes together.
City inspector signs off. We walk it with you, punch list in hand. Anything not right gets fixed before the last check.
Cabinet door samples. Quartz slabs. Tile. Plumbing fixtures. Flooring. Lighting. We have what we use, on display, in our showroom — so the choices you make in the design phase aren't abstract.
Bar, lounge, bedroom, bath, game room — built ground-up
The Johnstone basement is a complete second home built one floor down. We took an unfinished basement and rebuilt it as a family room with a wall-mounted TV, a custom wet bar with marbled-quartz counters and copper-tile backsplash, a code-compliant bedroom with egress window, a full bathroom with custom tile shower, and a dedicated game room.
Every fixture, every piece of cabinetry, every tile and finish was specified at our Kettering showroom and built in to standard the same trades use upstairs. The result is a basement that doesn't read as a basement — just as the most comfortable rooms in the house.
Same crew, same standards, same permit knowledge across all 9 cities.
In the Miami Valley, the cost to finish a basement runs $60,000 to $100,000+ for a typical 800–1,200 sq ft project, depending on whether you're adding a bathroom, a bedroom (with egress window), and how much custom millwork you want. A simple open family room with a half bath lands toward the lower end; a full in-law suite with a kitchenette pushes past $100,000. We give a fixed-price proposal after the on-site consultation — no hourly drift, no "from $30k" range that doubles by week three.
Most basement projects run 8 to 14 weeks from permit pull to final inspection. Bigger scopes with multiple new rooms and a full bath push to 16–20 weeks. We give you a week-by-week schedule before we start.
Almost always yes. If you're adding a bedroom, a bathroom, electrical circuits, or finishing more than a small area, your city wants a permit. We pull them — you don't have to talk to the building department. Skipping permits creates problems when you sell.
Not if it's built right. We insulate the foundation walls with rigid foam (not just batt insulation against bare concrete — that traps moisture). We seal vapor properly. We extend HVAC or add a mini-split if the main system can't reach. Done correctly, a finished basement is the most comfortable room in the house in summer.
Usually yes. Basement bathrooms require running new drain lines — sometimes a sewage ejector pump if the basement is below the main drain. A basement bedroom requires a code-compliant egress window. Both add cost and time, but they also add the most resale value of any basement work.
Yes — but how much depends on what you build. A basic finished family room recovers about 50–70% of its cost at sale. A finished basement with a bathroom and a code-compliant bedroom (in-law suite configuration) often recovers 70–90% in the Dayton market and reads as added square footage on appraisal.
Stop by our showroom at 1922 S Smithville Rd in Kettering, or schedule a free in-home consultation. We'll look at the space, talk through what you want, and give you a real number — not a "from $30k" range that doubles by week three.
Real Dayton pricing, the 7-phase build process, and the moisture, code, and design decisions that determine whether your basement adds $30K–$80K of livable space — or a flooded headache.
A typical 1,200 sq ft basement finish runs 8–12 weeks. The phases below run in this order — never compressed, never skipped.
Every decision that affects whether your basement project succeeds or fails — written from real Ohio jobs, in the order we plan them.
A finished basement is the cheapest square footage you'll ever buy — or the most expensive mistake. Get the moisture, framing, and permits right, and you've added $30–$80K of livable space for the price of a mid-size sedan.
Finishing an unfinished basement in the Miami Valley is a full construction project — not a weekend Design & Layout. We pull a permit, plan around your foundation type, and execute every trade in the right order so the finished space passes inspection and lasts. Searching for a "basement contractor near me" in the Miami Valley? You're looking for a crew that handles framing, mechanicals, and finishes under one roof — that's us.
Basement framing uses pressure-treated bottom plates against the slab, 2x4 stud walls held off the foundation for moisture clearance, and code-compliant fire-blocking at top plate transitions. Basement insulation is rockwool batts or rigid foam in cavity and rim joists — the rim joist is where most the Miami Valley basements lose heat.
Engineered subfloor panels (DRIcore or equivalent) over a vapor-rated moisture barrier so finished flooring sits warm and dry. Slabs get a moisture test before subfloor goes down.
If your foundation has visible cracks or seepage, we crack-inject and waterproof before drywall. Battery-backup sump pumps with sealed lid systems are standard insurance for the Miami Valley basements.
Dedicated circuits for entertainment, hardwired smoke and CO detection in every bedroom, supply and return ducts sized to actual cubic footage, and rough-in for any added bathroom, wet bar, or laundry.
Basement drywall goes up after framing and rough-in inspections clear: 5/8" drywall on common walls and ceilings, level-4 finish in bedrooms and bathrooms, paint-grade level-3 in mechanical rooms. Flooring is luxury vinyl plank, engineered hardwood, or carpet — your choice, our spec.
If your finished basement includes a bedroom, code requires an egress window with a properly sized well, ladder, and drainage. We cut, frame, install, and waterproof the assembly as part of the build.
Finished basement cost varies more than any other remodel because the existing conditions vary. Two the Miami Valley basements with the same square footage can cost $30,000 apart depending on bathroom count, bar specifications, and waterproofing scope. The ranges below are representative of what we actually quote in the Miami Valley.
Open rec room, half bath, simple lighting. No bar, no bedroom suite, no waterproofing scope. Engineered LVP throughout.
Rec room plus full bath, basement bedroom with egress window, dedicated home theater zone, basement bar with sink. Mix of LVP and carpet.
In-law suite with kitchenette, full bath, dedicated home theater with sound isolation, custom basement bar with bourbon shelving, walk-out patio integration.
The 70%+ ROI numbers you see in remodeling magazines assume good design and code compliance. The biggest ROI killers we see in the Miami Valley basements: low ceilings the design didn't address, unpermitted bedrooms (no egress window), and subfloor systems skipped to save money. Done right, a finished basement adds livable square footage at the lowest dollar-per-foot of any home addition.
Your basement layout drives every spec decision after it. We start with how you'll actually use the space — entertaining, hosting family, working from home, exercising, or all of the above — and back into framing, mechanicals, and finishes from there. These are the most-requested the Miami Valley basement layouts.
A basement permit in the Miami Valley is non-negotiable for our crew. We pull every permit, schedule every inspection, and get every project to a clean Certificate of Occupancy. Skipping permits is how a finished basement turns into a deal-killer at resale — and how an unpermitted basement bedroom becomes a fire-code liability.
Framing inspection (after walls and rough mechanicals), insulation inspection, drywall close-up inspection, electrical rough and final, plumbing rough and final, mechanical (HVAC) rough and final, and the final building inspection that signs the project off.
Every basement bedroom needs an egress window meeting code dimensions (typically 5.7 sq ft net opening, with a usable well). Smoke alarms must be hardwired and interconnected throughout the dwelling. Fire blocking at top plate, soffit, and chase transitions is non-optional — we install it before drywall every time.
If your basement has a walkout, a code-compliant walkout patio door needs proper framing, landing pad, threshold height, and grading. We coordinate these with the building inspector before pouring any landing or installing any door.
Code minimum finished ceiling height is 7'0" in most habitable basement spaces. the Miami Valley ceiling realities: 6'10" in historic Oakwood up to 9'+ in newer Centerville and Springboro builds. We plan HVAC trunks, plumbing drains, and beam wraps carefully to preserve every inch.
the Miami Valley basements are not generic. Foundation type, ceiling height, walkout potential, and water table all shape the design. Here's what we see in the Miami Valley — and how we plan around the low ceiling basement, partial basement, and other reality checks every project starts with.
Local knowledge • Dayton, Ohio
We’ve finished basements across the South Park Historic District, Cross Pointe, Forest Ridge, Sulphur Grove, and Washington Square — and just about everywhere else inside the Dayton city limits. Our shop and crew sit 7–10 minutes from any Dayton neighborhood, so the same NARI award-winning team runs your project start to finish: on-site consultation, full design drawings before any demo, then permits, inspections, and a punch-list walk-through before you write the final check.
From the Journal
Pricing data, design playbooks, and project case studies from RA Cooks Renovations.
One Contractor, Full Project
Most projects need more than one trade. RA Cooks Renovations handles all of it under one roof — same crew, same project manager, one warranty.
Full bath remodels — vanities, walk-in showers, soaking tubs, layout changes, tile end-to-end.
Learn more →Custom cabinetry, countertops, backsplash tile, and full layout redesign — designed in our showroom.
Learn more →Family rooms, in-law suites, theaters, gyms, bars — finished basements designed for daily use.
Learn more →Multi-room renovations and additions — one design team coordinates every trade from drawings to final walkthrough.
Learn more →Asphalt re-roofs, full tear-offs, and inspections — NARI-certified work warrantied in writing.
Learn more →Installation Services
Same in-house crew, same warranty, all designed and built in our showroom.
Bathroom floors, walk-in shower walls, kitchen backsplashes, mudrooms, fireplace surrounds, and feature accents.
View →Solid and engineered hardwood — installed, sanded, stained, and finished. Refresh existing or start new across the Miami Valley.
View →Waterproof, scratch-resistant LVP installed throughout your home. The look of hardwood without the maintenance — installed level and clean.
View →Durable, budget-friendly hard-surface flooring with the look of wood and modern wear layers that hold up to kids and pets.
View →Subway, mosaic, slab — installed clean to the cabinets and outlets with no caulk-ledge gaps.
View →Reclaim space and add accessibility — full Wedi waterproofing, custom niches, and bench seating for safe daily use.
View →Pre-hung swing, barn, pocket, French — sized, plumbed, and finished to match your trim package throughout the house.
View →From the Journal
Pricing data, design playbooks, and project case studies from RA Cooks Renovations.
Take the next step
Our NARI-certified team will measure your space, listen to your goals, and send a transparent line-item proposal within 5 business days. No pressure, no surprises — just a clear plan for the project you’ve been picturing.
Free Basement Finishing Guide
A 35-page Dayton-area planning guide covering egress, moisture control, framing, electrical, and finish decisions. Get the same playbook our consultation team uses with homeowners.
Download the Free Guide
Local & Nearby
Touch the materials, see the finishes, and meet the team that will design and build your project — by appointment or walk-in.
Stop By Our Showroom
Mon–Fri, 8:30 AM–4:30 PM
Get Directions →15 pages · CertainTeed Integrity Roof System · the cheap-roof math, plus a $1,000 design credit if you book within 14 days.
