Interior · Portland Metro

Basement Finishing in Portland, OR

A finished basement adds living space without an addition. Portland basements need moisture handled first, then we frame, insulate, drywall and finish with flooring, lighting and a bath if you want one.

CCB #262386 · Licensed, bonded & insured
Free on-site estimate · fixed written quote
Expected range: $30,000 – $90,000
Timeline: 5 - 10 weeks

Call or text(503) 962-9293

Basement Finishing by JOCS Construction in Portland, Oregon

What's Included

Basement Finishing, Done Start to Finish.

Moisture assessment and control
Framing and insulation
Drywall and ceilings
Moisture-rated flooring
Bathrooms and wet bars
Egress windows
Permits

Expected range: $30,000 – $90,000 Timeline: 5 - 10 weeks

Expected range for most Portland-metro projects. Smaller jobs can come in under it; larger scope, premium materials or hidden damage can run higher. Your written quote is exact.

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How It Works

Four Steps. No Surprises.

Free Visit

We look at the job, measure and answer your questions.

Written Quote

A clear, fixed price in writing. No surprise add-ons.

We Build

One crew, one point of contact, weekly updates.

Walkthrough

We check every detail with you before we call it done.

Common Questions

Basement Finishing FAQ.

How much does it cost to finish a basement in Portland?

Typically $40-$90 per square foot, higher if you add a bathroom or egress window.

Can a finished basement be a legal bedroom?

It needs a code-compliant egress window and proper ceiling height. We tell you what's needed at the estimate.

What about moisture?

We address it before anything else. Finishing over a moisture problem traps it in the walls.