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Basement Finishing

PrimeStone offers comprehensive, professionally engineered egress window solutions

Basement Finishing & Basement Remodeling in Colorado

Basement Finishing

Finishing your basement is one of the most effective ways to add living space, value, and comfort to your home. At PrimeStone, we provide fully engineered, code-compliant basement finishing and basement remodeling services throughout Colorado, including Denver, Aurora, Highlands Ranch, Centennial, Lakewood, and the Front Range.

As a structural engineer–owned design-build company, we ensure every basement project is safe, durable, and compliant with structural and building code requirements—giving homeowners peace of mind and elevated construction quality.

Our Basement Finishing Services

PrimeStone offers complete, professionally managed, and engineering-backed basement finishing solutions tailored to your budget, lifestyle, and design goals.

Basement Design & Planning

Space planning and layout optimization
Architectural and interior design options
Structural review for wall modifications, beams, and egress
Permit-ready drawings and code compliance planning
Full Basement Build-Out

Framing, drywall, insulation, and soundproofing
Electrical, plumbing, HVAC, and mechanical upgrades
Flooring installation (carpet, LVP, tile, engineered wood)
Custom lighting design and energy-efficient fixtures
Interior doors, trim, and finishing details
Basement Kitchens, Wet Bars & Living Areas

Custom wet bars and entertainment spaces
Secondary living rooms and open-concept layouts
Basement kitchenettes with plumbing and electrical design
Basement Bedroom Additionss

Code-compliant bedroom design
Egress window installation (engineer-reviewed)
Ventilation and comfort improvements
Basement Bathrooms

Full bathroom additions with plumbing rough-ins
Custom showers, tile work, vanities, and luxury upgrades
Waterproofing and ventilation solutions
Specialty & Luxury Basement Features

Home theaters and media rooms
Gym and fitness areas
Home offices and study rooms
Wine cellars and storage solutions
Fireplace integration
Custom-built storage and millwork

Because PrimeStone is structural engineer–owned, all basement finishing projects undergo structural review for load paths, framing, point loads, and code compliance—ensuring safe, long-lasting results.

Our Process

1. On-Site Evaluation & Engineering Review

We assess your basement’s structure, utilities, moisture conditions, egress requirements, and layout to create a safe and functional plan.

2. Design & Permit Planning

Our team prepares layout options, interior design concepts, and engineered details—then handles all required permits and code compliance steps.

3. Construction & Build-Out

We complete all framing, mechanicals, finishes, and custom features with precise craftsmanship and engineered oversight.

4. Final Inspection & Completion

We coordinate inspections and deliver a fully finished, move-in ready basement that meets or exceeds Colorado building codes.

Why Choose PrimeStone for Basement Finishing in Colorado?

Structural engineer–owned ensuring safe, code-compliant design and construction
Full-service design–build contractor for seamless planning and execution
Custom and budget-friendly options tailored to your needs
Transparent pricing, clear scopes of work, and no hidden costs
Expertise in moisture control, drainage, and basement waterproofing
High-quality craftsmanship trusted by homeowners and real estate professionals
Serving the Denver Metro Area and the Colorado Front Range

With engineering oversight throughout your project, you receive a beautifully finished basement built to last—safe, functional, and customized to your lifestyle.

Schedule Your Basement Finishing Consultation

Transform your unused basement into a comfortable, valuable living space.

Contact PrimeStone today to schedule your consultation and receive a detailed estimate.

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Basement Finishing FAQ

How long does a basement finishing project usually take?
Most basement finishing projects take 6–10 weeks, depending on the scope of work, permitting timelines, and any custom design features. Larger or more complex basements may take longer.
Do I need a permit to finish my basement in Colorado?
Yes. Basement finishing almost always requires permits for framing, electrical, plumbing, HVAC, and egress compliance. As a structural engineer–owned design-build company, PrimeStone handles all permitting and ensures every part of the project meets current building codes.
Do basement bedrooms need egress windows?
Yes. Any bedroom in a basement must have a code-compliant egress window to provide safe emergency escape and rescue access.
PrimeStone provides engineer-reviewed egress window installation as part of basement bedroom additions.
Can you help with basement moisture or water intrusion issues?
Absolutely. Moisture control is critical in basement construction. We assess any potential water intrusion, recommend solutions such as waterproofing or drainage improvements, and ensure the finishing process protects the space long-term.
How much does basement finishing cost in Colorado?
Costs vary widely depending on size, level of finishes, plumbing needs, and custom features, but most Colorado basements fall within:
• $40–$75 per square foot for standard finishing
• Higher for basements with luxury amenities, kitchens, or home theaters
We provide detailed and transparent estimates based on your design and needs.
Can you add a bathroom to a basement?
Yes. Basement bathrooms are a common upgrade. We handle plumbing rough-ins, layout planning, waterproofing, tile work, and full bathroom build-out—all engineered and built to code.
Do you offer design services for basement remodels?
Yes. We provide full design services, including layout planning, interior design consultation, lighting plans, material selections, and engineered drawings for permits.
What makes PrimeStone different from other basement finishing contractors?
PrimeStone is structural engineer–owned, which means every project is reviewed for safety, structural integrity, and code compliance. You receive elevated quality, transparent communication, and a fully managed design–build process.
Can you finish basements for rental units or Airbnb?
Yes. We can design basements to meet rental requirements, including separate entrances, egress compliance, additional bathrooms, and durable finishes suitable for tenants or short-term rentals.
Do you work on older homes with structural concerns?
Yes. Older basements often require structural modifications or reinforcements. With in-house engineering oversight, we can safely handle homes from all eras—including those with foundation issues, low ceilings, or outdated framing.

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