BASEMENT FINISHING & REMODELING
Your Basement Called.
It’s Ready.
Book a free consultation with Castle Building & Remodeling and get clear design guidance, realistic budgeting, and a remodeling plan built around your home and your family.
Building Since 1977.
Older Twin Cities homes come with unique basement challenges: low ceilings, uneven floors, aging plumbing, and moisture concerns.
At Castle Building & Remodeling, we have been solving these exact problems in Minneapolis and St. Paul homes since 1977. We plan for the quirks upfront so there are no surprises once construction begins.
WHY CHOOSE US
Why Homeowners Choose Castle for Basement Remodels
Your basement has the potential to be the most-used room in your house. Whether you envision a cozy family media room with a fireplace, a custom wet bar for entertaining, a dedicated home gym, or a private guest suite, finishing your lower level unlocks the hidden value sitting right beneath your feet.
Dry and Healthy Spaces
We do not cut corners on the details you cannot see. Before any framing or drywall goes up, we address moisture mitigation, proper insulation, and subfloor leveling to ensure your new basement is healthy, dry, and built to last for decades.
Seamless Design Integration
A finished basement should not feel like an afterthought. Our designers match the architectural character of your older home, carrying the trim, doors, and design details downstairs so the transition from main floor to lower level feels completely natural.
The Castle Guarantee
Every project comes with three promises no other contractor in the Twin Cities offers: a Lifetime Warranty on our work, a Guaranteed Completion Date, and No Unforeseen Change Orders. The price you agree to is the price you pay.
THE PROCESS
A Simple Path From First Call to Finished Basement
Know what happens next before you book. Our process is designed to remove uncertainty and keep your project moving.
We help you compare layout ideas, ceiling height solutions, storage options, egress window placement, and finish selections before you commit to anything.
Our team manages every detail with quality craftsmanship, clear communication, and respect for your home and your daily life.
WHAT WE PLAN BEFORE CONSTRUCTION STARTS
What We Plan Before Construction Starts
A better basement starts with the right decisions upfront. Here is what our design team focuses on before a single nail is driven.
Moisture and Waterproofing
We assess your foundation thoroughly before any finishing work begins. If moisture is present, we recommend and implement the right solution, whether that is interior drain tile, a sump pump, improved exterior grading, or a combination of all three.
Ceiling Height Solutions
Low ceilings are common in older Minneapolis and St. Paul homes. We use smart design strategies to maximize perceived height, including exposed painted ceilings, strategic recessed lighting, and careful routing of HVAC ductwork and plumbing to avoid unnecessary drop-downs.
Egress Windows
If your basement remodel includes a bedroom, building code requires an egress window. Even if you are not adding a bedroom, an egress window brings in natural light and makes the lower level feel significantly more inviting. We handle all excavation, installation, and code compliance.
Layout and Flow
We design your basement layout around how your family actually lives, whether that means an open entertainment space, a separated home office, a dedicated kids’ zone, or a combination of all three.
MATERIALS
Trusted Materials for
Basement Projects
We partner with trusted manufacturers and premium suppliers to deliver basement remodels that combine lasting performance, exceptional craftsmanship, and timeless design.
Crystal Cabinet
Custom cabinetry for wet bars, built-ins, and storage walls
KOHLER
Plumbing fixtures for basement bathroom additions
ADURA Flooring
Durable, waterproof flooring built for below-grade environments
Questions Before You Book?
Can I finish my basement if it occasionally gets water?
Can low pipes or ductwork be moved to increase basement headroom?
Do I need an egress window in my basement?
What are the codes for basement remodeling in St. Paul?
How much does it cost to finish a basement in the Twin Cities?
Appointment and Home Visit Scheduling
