Knoxville Basement Remodeling Expert| Custom Basement Renovations & Finishing
We’re proud to be the basement remodeling company in Knoxville ,TN for over 20 years. Experts in basement finishing, basement waterproofing and moisture control, egress window installation, basement bathroom additions, In-Law suites, basement apartments, home offices, gym build outs, home movie theaters, basement bar, entertainment rooms, playrooms , basement insulation and HVAC extension, basement foundation repair and basement structural repair.
We have 20 years of experience in this industry, and we built this company because Knoxville deserves basement remodeling that’s done right the first time — engineered for our clay soil, our humidity, and our older housing stock and newly built homes.
- Knoxville Custom Basements assesses load-bearing walls/posts before altering layout.
- We address hydrostatic pressure issues-interior/exterior drain tile, sump pump, and vapor barrier installation. W
- We ensure IRC code requirements.
- We can reroute or box HVAC ductwork, plumbing stacks, and electrical panel clearances. Our insulation is rigid foam on foundation walls for thermal break and vapor retarder placement.
- For the electrical we use GFCI-protected circuits, proper amperage for finished square footage.
- Knoxville Custom Basements ensure ceiling heigh are set to code and pull permits for electrical ,plumbing, and structural changes.
- Radon Mitigation system if testing warrants it.
Get a FREE Quote.
Why Choose Knoxville Basement Remodeling Expert
Locally owned and East Tennessee proud company, we treat every basement like its our own. With transparent pricing, quality craftsmanship, we turn your unfinished basement into the space your family deserves.
Knoxville TN company
Locally owned and operated
Waterproofing Experts
We address moisture and drainage before we build.
Licensed & Permitted Work
Every project meets Knox County and City of Knoxville code-no cut corners, no surprises later.
Transparent, Upfront Pricing
Clear estimates with no hidden fees, so you know exactly what you're paying for from day one.
Quality Craftsmanship
From framing to finishing touches, we build basements meant to be lived in, not just looked at.
On-Time, On-Budget Delivery
We respect your home and your timeline- clear communication from start to finish.
Basement Remodeling and Finishing Services in Knoxville ,TN
Basement Finishing
Turning unfinished space into livable square footage: framing, drywall, flooring, lighting, and trim.
Basement waterproofing and moisture control
Protect your home's foundation to stop water intrusion, prevent mold, and safeguard your investment.
Basement Egress Window Installation
For safety and natural light we do code-required windows for emergency exits for basement bedrooms.
Playroom or bonus room
Safe, Bright, moisture-controlled lower-level spaces for children, padded flooring, built-in storage, and low-VOC finishes.
Basement Bathroom Addition
Knoxville Basements work around below-grade plumbing using a sewage ejector pump or upflush system.
Basement Apartment
Turn your unused basement into a code-compliant legal accessory dwelling unit (ADU)- complete with egress windows, separate plumbing and electric.
Home office
Make a productive space for year round comfort with dedicated electrical circuits for equipment and lighting. Built to code designed for focus.
Fitness and Gym
Built to handle daily wear and tear. Custom Basements make durable home gyms with moisture-resistant flooring and reinforced subfloor to support heavy equipment with dedicated ventilation.
Basement Materials, Installation and Finishes
Basement Flooring
Installation services include waterproof vinyl plank, epoxy coating, moisture-resistant tile, or engineered hardwood. All options designed for basements.
Basement Electrical
Our electrical services include panel upgrades, recessed lighting installation, outlet and switch additions, and code-compliant wiring for basement bedrooms, media rooms ,and wet bar setups.
Basement HVAC
HVAC services cover ductless mini-split installation, dehumidification systems, supplemental heating and cooling and ventilation upgrades to keep finished basements comfortable, energy-efficient, and moisture- free all year-round.
Basement Plumbing
Plumbing services include wet bar and bathroom rough-ins, floor drain installation, sump pump connections, and sewer line upgrades to support fully functional basement living spaces.
Basement Remodeling Cost
How much does it cost to remodel your basement
Basement remodeling costs in Knoxville typically range from $25-$75 per square foot, depending on the size of the space and the scope of the project. For a standard 1,000-sqft basement, homeowners can expect to invest between $25,000- $75,000 for a full remodel, while smaller basement finishing projects in the 300-700 sqft range often fall between $6,500 and $16,500.
Factors that affect Basement Remodel Cost
A basic basement finishing project - flooring, drywall, insulltation, and lighting- tends to land on the lowerend of the basement renovation cost range. A basement remodel with a a full bathroom, kitchenette, or custom layout pushes toward the higher end.
Hidden Costs to Basement Remodeling
Moisture Mitigation
If your basement has any history of dampness, you may need a vapor barrier, interior drain tile, or a sump pump added before finishing even starts. This can add $2000-$7000 depending on severity.
Electrical panel upgrades
Older East Tennessee homes often have panels that can't handle the added circuits for a finishing basement. Upgrading can cost $1500-$3,500.
Mold Remediation
If demo reveals existing mold behind paneling or insultation , remediation before build-out is non-negotiable and rarely quoted upfront. Cost can vary from $1500-$15,000+.
Egress Window Installation
Required is you're adding a bedroom. A new Egress window well can run $2,500-$5,500 depending on excavation depth and foundation type.
HVAC extension or mini-split
Running ductwork to a basement, or adding a dedicated mini-split system can add $3000-$8,000.
Ceiling height issues
If your ceiling is borderline for code, you may need to lower floors or reroute ductwork/plumbing to clear the legal minimum. IF its just a few problem spots (a duct or beam encroaching) you can expect $1,500-$5,000. If you need to lower the basement floor that can be a costly fix.
Plumbing for a bathroom
If your basement is below the main sewer line, you'll need an ejector pump system, not just standard drain lines. That's a meaningful cost difference .
Egress Window Installation
Required is you're adding a bedroom. A new Egress window well can run $2,500-$5,500 depending on excavation depth and foundation type.
Check Out What Our Knoxville Clients Say
"We'd lived with an unfinished basement for ten years. The redesign added a guest suite and a playroom, and the 3D preview meant zero surprises on the final walkthrough."
Frances Wagner
Farragut, Knoxville TN
"Moving my dad in with us felt overwhelming until we found this team. The in-law suite they built has its own bathroom and kitchenette, fully up to code, done in under 10 weeks."
Maurice Smith
Hardin Valley, Knoxville TN
"They caught a moisture issue during the consultation that two other contractors missed. Now we've got a finished home gym with zero humidity problems."
Matilda Ellis
Fountain City, Knoxville TN
Basement Remodeling FAQ
How much does a basement remodel cost?
Most basement remodels in the Knoxville area run $25-6=$60 + per square foot depending on scope.
Do I need a permit to finish my basement?
Yes, in most cases. Knox county and the City of Knoxville both require permits for electrical, plumbing, and structural work. We will pull these for you!!
How long does a basement remodel take?
Typically 4-8 weeks for a standard finish, longer if you're adding a bathroom, moving walls, or dealing with moisture issues first.
Will my basement stay damp after finishing?
The #1 concern in East TN clay soil and humid climate. We will address waterproofing, drainage, and vapor barriers BEFORE framing ---not after.
How do I keep my basement from feeling cold and dark?
Proper insulation, recessed lighting, and light wall colors go a long way. Egress windows also add natural light if you're already required to install one.
Does finishing a basement add home value?
Yes-typically 70-75% ROI on resale, and it's one of the cost-effective ways to add usable square footage compared to a home addition.
Serving Knoxville, Maryville, and surrounding counties
-Alcoa
-Louisville
-Oak Ridge
-Bearden
-Farragut
-Clinton
-Vonore
-Maynardville
-Lafollette
-Kodak
-South Knoxville
-Seymour
-Halls
-Fountain City
Lenoir City
-Kingston
-Sevierville
-Jefferson City
-Norris
-Harriman
-Tellico Village