St. Louis Basement renovation Services
Most basements in St. Louis are either sitting unfinished or stuck in a previous decade. A well-planned basement renovation turns that overlooked square footage into some of the most enjoyed space in your home.
More than just finishing a basement
There’s a big difference between “finishing” a basement and truly renovating one. Finishing means framing walls and hanging drywall so the space is technically usable. Renovation goes further. It means designing a lower level that feels like a natural extension of your home.
Our team approaches every basement project by first understanding what you want the space to do. Then we address the unique challenges that come with below-grade construction: moisture control, ceiling height, natural light limitations, egress requirements, and HVAC integration.
Because we handle design and construction under one roof, every detail is coordinated from the start. Fewer surprises, fewer delays, and a finished product that matches what was promised.
What can your basement become?
The best basement renovations are designed around how your family actually wants to use the space.
Entertainment space
Open-concept living with seating, a wet bar or beverage station, and space for games, movies, or hanging out. The go-to gathering spot for family and friends.
Home theater
Dedicated theater rooms with acoustic treatment, tiered seating, built-in speakers, and controlled lighting. Basements are naturally suited for this.
Guest suite
A self-contained lower level with bedroom, bathroom, kitchenette, and private entrance. Perfect for visiting family or aging parents.
Home office or studio
A dedicated workspace below grade that offers quiet, privacy, and a clear boundary between work and home life. Proper lighting, electrical capacity, and climate control included.
Kids' playroom or rec room
Space for kids to spread out and be themselves. Durable materials, easy-to-clean surfaces, and smart storage. Evolves as kids grow into a teen hangout, study area, or gym.
What a basement renovation can include
Every basement is different, but here are the elements we work with most often:
Moisture management
Waterproofing, vapor barriers, sump pumps, and drainage solutions. The most important step.
Framing & insulation
Properly framed walls with moisture-resistant insulation for comfort and efficiency.
Flooring
LVP, engineered hardwood, tile, and carpet selected for below-grade performance.
Ceiling solutions
Drywall for a clean look or drop ceilings for mechanical access. Designed to maximize headroom.
Lighting
Recessed, cove, wall sconces, and task lighting to make the space warm and inviting.
Bathroom addition
Full or half bath, tying into existing plumbing or installing a sewage ejector system.
Wet bar or kitchenette
Beverage station, wet bar, or full kitchenette with sink, fridge, and counter space.
Egress & HVAC
Code-required egress windows/doors plus heating and cooling extension or mini-split.
Basement renovation across St. Louis
Basements in the St. Louis area come with their own characteristics depending on when and where the home was built.
South City, Webster Groves & Maplewood
Lower ceiling heights, stone or block foundations, and limited natural light. Creative solutions needed for clearance, moisture, and egress. But a well-renovated lower level can double the usable space in a 1,000 sq ft bungalow.
Kirkwood, Ladue & Clayton
Partially finished basements with outdated paneling, drop ceilings, and old carpet. Prime candidates for a full renovation that strips everything back and starts fresh with modern materials and better lighting.
Chesterfield, Town and Country & Ballwin
Taller ceilings, poured concrete foundations, and often roughed-in plumbing. Many were built with future finishing in mind, making renovation more straightforward. Focus is on design and finishes.
What our clients are saying…
“Aleto Construction Group did an excellent job on our main floor bathroom. They were professional, knowledgeable, good work ethic, met deadlines and worked with us on the budget. The workers were professional and cleaned up after themselves at the end of each day. We would hire them again and they were all friendly too from the owner on down to all the workers!”
Patricia, Google Review
Featured basement renovation project
Transforming a basement into an entertainment space
A Chesterfield couple wanted to create a wonderful space to entertain and relax when their family was in town; so they looked to transform their basement into the perfect spot. The living room was extended to open the space and an existing fireplace updated to give the space a more modern look.
Frequently asked questions
Do I need to waterproof before finishing?
Moisture management is critical for any basement renovation. We assess conditions during design and recommend the appropriate level of protection before any finishing work begins.
Can I add a bathroom to my basement?
Yes. If your home has roughed-in plumbing, the process is more straightforward. If not, we install a sewage ejector system. Our team handles plumbing, tile, fixtures, and all related work.
What about the basement ceiling height?
Most codes require 7 feet minimum for habitable space. Solutions include flush-mount lighting, recessed details, and visual techniques that make the space feel taller. In some cases, the floor can be lowered.
Do I need permits for a bathroom renovation in St. Louis?
Yes. Most basement renovations require permits for framing, electrical, plumbing, and HVAC. Egress requirements must also be addressed. Our team handles all permitting.
Related home renovation services
Planning more than a basement renovation? Explore our other home renovation services:
Whole home renovation
Transform your entire living space — updating layouts, finishes, and systems so everything works together.
Kitchen renovation
We rethink how your kitchen flows, functions, and feels from layout to custom storage and premium appliances.
Bathroom renovation
Convert dated bathrooms into spa-like retreats with custom tile, modern fixtures, and intelligent layouts.
Ready to unlock your lower level?
Your basement has more potential than you think. Tell us what you’d love to do with the space, and we’ll help you figure out the smartest way to make it happen.