Basement Finishing in Denver, scoped line by line
Basement finishing in Denver, CO — turn unused space into living space with OnSite crews and a transparent estimate. Call (773) 900-7007 to start.
Moisture control and egress handled to code
Framing, electrical, and finishes under one team
Transparent, sectioned estimate up front
Permits and inspections coordinated for you
Scoped, priced, approved — then built.
Send photos
Text us a couple of photos of what you're looking at. That's enough to start.
Walkthrough
A Zoom walkthrough of the space — it waives the $149 in-person written estimate.
Line-item estimate
A sectioned estimate with every line priced. You approve every line before any crew arrives.
The build
Our crews run the sequence — demo to punch list — and you sign off on the finished work.
- 01Framing
- 02Insulation
- 03Electrical
- 04Drywall
- 05Flooring
Each pass lands in your estimate as its own priced section — nothing hides in a lump sum.
Get your basement finishing estimate
Your phone and text estimate is free. An in-person written estimate is $149 — a Zoom walkthrough waives it. On hourly (time-and-materials) jobs, a $129 fee applies per material run. Tell us about the project and we’ll come back with a clear, line-item scope.
The basement finishing estimate, sectioned
- Framing
- Insulation
- Electrical
- Drywall
- Flooring
Every line priced. No lump sums.
Itemized · you approve every lineBasement Finishing in Denver — common questions
Do I need a permit to finish a basement in Denver?
Most CO jurisdictions require permits for framing, electrical, and egress. OnSite coordinates the permits for you.
Can you add a bathroom in the basement?
Yes — we handle the plumbing rough-in and finish, included in your estimate.
Do I get a written, line-item estimate for basement finishing?
Yes — you get a sectioned, itemized estimate before any commitment, so you see exactly what each part of the work costs. No lump sums, no surprise change orders.
Are OnSite crews licensed and insured?
Yes. Every OnSite crew is insured, bonded, and background-checked, and one accountable team stays with your project from the first estimate to the final walkthrough.
Do you offer financing?
Yes — financing is available through licensed lending partners, so you can spread the cost over time. It's optional and there's no obligation; we can set it up once your estimate is ready.
Is the estimate really free?
Yes. Your estimate is free and there's no obligation — we scope and price the work up front so you can decide with the full picture in hand.
More work we take on in Denver
Terms & disclosures — Colorado
OnSite General Contracting operates under Colorado state and local licensing. Estimates and contracts follow Colorado consumer-protection law.
- Colorado contracts disclose payment schedule and lien-law rights before work begins.
- Roofing work follows Colorado SB 38: no waiver of insurance deductibles; right to rescind a roofing contract if a claim is denied.
- Right to cancel within 3 business days for eligible door-to-door sales.