Basement Finishing
Fully Permitted. Every Trade. One Contract.
Josh Brooks Construction finishes basements from raw concrete to beautiful living space. Bedrooms, bathrooms, home theaters, wet bars, and mother-in-law suites — all in-house, fully permitted, one point of contact from framing to final walkthrough.
Turn Dead Space Into Valuable Living Space
The average unfinished Colorado basement represents $35,000–$95,000 in dormant home value. Josh Brooks Construction transforms that raw space into fully legal, code-compliant living space that adds immediate equity and daily usability to your home.
We handle every trade in-house: framing, rough plumbing, electrical, insulation, drywall, flooring, trim, paint, bathroom tile, and cabinetry. No subcontractor coordination, no scheduling chaos.
All basement finishes are fully permitted and inspected by Boulder County. Egress windows cut and installed for legal bedrooms.
Legal Bedrooms
Egress windows, closets, proper ceiling height and electrical to meet code.
Full Bathrooms
Rough plumbing, tile shower, vanity, toilet, exhaust. Full permits.
Home Theaters
Acoustic insulation, dedicated circuits, recessed lighting, projector prep.
Wet Bars & Suites
Full kitchenettes, wet bars, and mother-in-law apartment configurations.
Basement Finishing FAQs
How much does basement finishing cost in Longmont CO?
Basement finishing in Northern Colorado typically ranges from $25 to $60 per square foot fully finished. A 1,000 sq ft unfinished basement runs $25,000–$60,000 depending on bathroom count, ceiling height, and finish level. Full mother-in-law suites with kitchenettes run toward the higher end. We provide free itemized estimates within 48 hours.
Do I need a permit to finish my basement in Boulder County?
Yes. Any basement finish in Boulder County that includes framing, electrical, plumbing, or egress windows requires a building permit and inspections. We pull all permits as part of our contract. Unpermitted basement finishes create serious problems at resale and can be ordered demolished by the county.
How long does basement finishing take?
Most basement finishing projects take 8–14 weeks from permit issuance to final inspection. Simple open-plan finishes are faster; full builds with bathrooms, bedrooms, and wet bars take longer due to rough-in inspection scheduling.
What is an egress window and do I need one?
An egress window is a minimum-size window that provides emergency exit from a basement bedroom. Boulder County requires egress windows in any basement room used as a bedroom. We cut the opening, install the window well, and handle waterproofing as part of the finish package.
Free Basement Finishing Estimate
Typical project: $25,000–$95,000. All trades included. Veteran & Senior discounts. Serving Longmont, Boulder County, Weld County & Larimer County.
2167 Frontier St, Longmont CO 80501 • Boulder County License CON-24-0152 • $1M/$2M Insured • 31 Years Experience