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Find Basement remodelers in Portland

Avatar for Lo's Contracting, Inc.
Lo's Contracting, Inc.
4.9(
531
)

Serving Portland, OR and surrounding areas

Angi Approved

In business since 2002

Free estimates

Credit card accepted

"They were everything we needed. Very communicative all the way. Got in quickly to do this repair for us. They kept their word for when they would arrive, how long the job would take and got everything done quickly and efficiently."
Remodeling
Exterior Home Painting
Additional Photos
Additional Photos
Additional Photos

+7

Response time2 days
1 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Express Restoration, LLC
Express Restoration, LLC
5.0(
21
)

Serving Portland, OR and surrounding areas

Angi Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"We couldn't be happier with the overall service and quality of construction. We converted a space for multi gen living that included removing and adding exterior doors and windows along with interior wall removal and builds. The process of scheduling trades was seamless, and work was completed within 2 1/2 weeks. Our neighbors are loving the new exterior look which included a ground level deck for zero entry (no stairs)."
full exterior remodel
Full exterior remodel
Exterior
Full interior update
Remodel of a bathroom

+59

Response time1 day
Response rate93%
11 neighbors recently requested a quote
Hillhouse Construction
5.0(
34
)

Serving Portland, OR and surrounding areas

Angi Approved

In business since 2013

Free estimates

Small jobs welcome

"Needed some stair repairs in our old house. Saw HHC on Anji and through Google. Called them up. Got a quick call response: 1. Came out that day to check things out & give an estimate. 2. Got an estimate and we settled on a date a couple days later. (While Josh said they could do it right away we couldn't.) 3. They came, they saw, they informed, they fixed, they cleaned up, 4. The stairs look (and work) wonderful. 5. The cost was less than the estimate. So, I'm thinking WHAT IN HELL KIND OF CONSTRUCTION COMPANY IS THIS? 1. Nice guys 2. Highly skilled in their work/field. 3. Informative on any issues during the work. 4. Did what they said they would do. 5. Fixed the stair issues. 6. While we were writing the check (less than the estimate), One of them was tightening door knobs, door hinges. I said, "Hey, you guys..." and Josh said, "We fix things". What kind of construction company? THE BEST! (One thing I would recommend: If it's inside work, you might consider some ear plugs)."
 Bathroom Remodel
 Living Room with Fireplace
 Entry Way
 Kitchen Remodel
Recommended by100%of homeowners
Avatar for Dluxe Construction LLC
Dluxe Construction LLC
4.8(
23
)

Serving Portland, OR and surrounding areas

Angi Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"Dluxe Construction built an ADU for us. Our contractor Anwar took the time to figure out exactly what we wanted and he and his crew made it come to life. He responded to me whenever I reached out. He is an excellent communicator and listener. He has a strong work ethic and takes the time to get every last detail correct. And he does these things in a timely manner."
Modern Remodeling
Exterior Remodeling
House Remodeling
Exterior Remodeling
House Remodeling

+272

Response time1 day
Response rate98%
22 neighbors recently requested a quote
Avatar for A M Leech Construction, LLC
A M Leech Construction, LLC
5.0(
73
)

Serving Portland, OR and surrounding areas

Angi Approved

In business since 1998

Free estimates

Emergency services offered

"AM Leech completed my basement finishing project in May 2023. It has been 2 1/2 years since the work was completed and it still looks fabulous. They were great to work with. I would definitely hire them again."
Tile shower with teak bench
Basement bedroom and closet
Basement stairs
Custom basement winder stairs
Custom tile shower

+112

Response time2 days
7 neighbors recently requested a quote
Recommended by94%of homeowners
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FAQs for basement remodeling projects in Portland, OR

Finishing a basement turns unused square footage into livable space and returns up to 70% of what you spend when you sell your home. Beyond that resale boost, you gain a playroom, home office, or guest suite you can start enjoying right away. That mix of daily comfort and solid return on investment (ROI) makes basement finishing one of the smartest upgrades you can tackle.

In some parts of the country—especially lots on swamps, high water tables, or other wetlands—local codes prohibit basements. Saturated soil puts constant pressure on foundation walls and lets water seep in faster than any sump pump can handle. 

If your property sits on waterlogged ground, building on a slab or crawl space is often safer, more affordable, and code-compliant.

Most basements wrap up in four to eight weeks. Framing takes three to five days, with electrical and plumbing rough-ins following over the next week. Add five days for drywall, two to three for flooring, and another week for paint, trim, and punch-list items. 

Delays can happen if materials run late or your contractor’s calendar is packed, so build in a little cushion when you plan.

Whether a finished basement counts toward your home’s official square footage depends on local rules. Many areas only include below-grade space if it has code-approved egress, fully finished walls, ceilings, and floors, plus consistent heating. 

Check with your local assessor or building department before you start; meeting those standards can affect taxes, appraisals, and resale value.

Building codes require a checklist: dedicated heat and electrical service, a code-approved stairway, and at least one egress window or exterior door. Walls, ceilings, and floors must be fully finished and meet insulation, ventilation, and fire-separation standards. If you add a bedroom, you’ll also need a closet, proper clearances, and safe exits. If you change the layout later, be ready to update the space so every new room still meets today’s code.

The Portland, OR homeowners’ guide to basement remodelings

From average costs to expert advice, get all the answers you need to get your job done.