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Find Basement remodelers in Portland

Avatar for Mt. Tabor Construction
Mt. Tabor Construction
4.7(
83
)

Serving Portland, OR and surrounding areas

Approved

In business since 1985

Customers say: Super punctual

"Fantastic! Rob has extensive expertise and was able to help us out with a wide range of projects. He's efficient and cares about finding the best solution for the homeowner, rather than up-selling. He was a joy to work with."
Patio Cover
Bathroom remodel
Fencing
Bedroom Remodel
Built-in Shelving

+2

1 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Lo's Contracting, Inc.
Lo's Contracting, Inc.
4.7(
599
)

Serving Portland, OR and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

"Lo's did a wonderful job on our recent home repairs and remodeling work. Amadou and his crew were a pleasure to work with-- friendly, considerate, on time, fast. Amadou takes time to talk with you about the job to make you feel comfortable about the plans. The work was better than we could have ever imagined, and we had such a positive experience that we decided to re-hire them immediately to paint the exterior of our house."
Remodeling
Exterior Home Painting
Additional Photos
Additional Photos
Additional Photos

+7

1 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for A M Leech Construction, LLC
A M Leech Construction, LLC
4.5(
86
)

Serving Portland, OR and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"Adrian and his crew made our project incredibly smooth. Adrian was always available for a quick call or text when issues or questions came up. His crew members were very friendly and polite and it felt very comfortable having them in our home for several months. We couldn't be more happy with how the basement remodel turned out. We interviewed and received quotes from several firms, and Adrian's price was very competitive and at the same time his professionalism and quality of work was exceptional. His original schedule was very close to the how the timeline actually turned out, and the source of the biggest delay was our own indecision rather than any planning or coordination issues on his part. Adrian is friendly and straight talking. He gave me options of ways to save money and talked through design tradeoffs. We went through several iterations of the remodel design and he was very patient as we tweaked and thought through each of the options. Now we have an additional bedroom, a bathroom and a finished laundry and craftspace. I would give AM Leech the highest recommendation."
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
Avatar for Rutledge Construction, LLC
Rutledge Construction, LLC
4.9(
36
)

Serving Portland, OR and surrounding areas

Approved

In business since 1997

Free estimates

Credit card accepted

"WE LOVE JOSH! We initially hired him to remodel a kitchen after another contractor botched the job. Josh fixed everything and got everything finished the way it should been in the first place! We have since hired him for two more jobs: pouring a concrete driveway extension for RV parking, and replacing some siding and painting the entire exterior of the house. Josh is meticulous and clearly takes pride in his work, he is super easy to work with! I HIGHLY recommend Josh, we will continue to hire him for all of our construction needs!"
Interior finishes
Custom kitchen
Interior finishes
Mango custom cabinets
Robusta floor

+165

Response time1 day
2 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Gryphon Custom Home Builders and Remodeling LLC
Gryphon Custom Home Builders and Remodeling LLC
5.0(
11
)

Serving Portland, OR and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

"Awhile back I decided it was time to replace my old, crumbling shed. After doing a search on Angie’s List, I hired Gryphon Construction because they had good reviews. The process worked, and I must say that I’m super happy with the results I got. Not only were Akeem and company great to work with, they did an excellent job, and and I’m extremely happy with my new shed. (The only reason I’m not calling it “shop” is because I didn’t have power installed). It’s solid, has a locking door, as well as a window, and looks more like a tiny house than the shed that proceeded it. And while they were here, I also had them install a new track for a broken pocket door, which involved removing some dry wall to get at the work-out track. They did a great job on that, too, and I’m very happy with the remodel. I found them to be pleasant to do business with, as well as very conscientious, timely, and they have a strong sense of craftsmanship, which, after all, is what we all want in a good contractor. I highly recommend them!"
The Linox
Grey Josephine
The Linox
Grey Josephine
The Linox

+51

9 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Robin Renovation
Robin Renovation
4.8(
14
)

Serving Portland, OR and surrounding areas

Approved

In business since 2022

Free estimates

Warranties offered

"We are so happy that we went with Isaiah and his team at Robin Renovation! The projects included new hardwood flooring in two rooms and on stairs, gas fireplace insert replacement, lots of tiling and drywall. All of the employees who came to our home did exceptional work along with being communicative, tidy and patient with our dogs. I received continual updates from scheduling manager Jodi who kept meticulous details about all of the simultaneous projects. The cost of the work was well worth it the quality. I highly recommended Robin Renovation for anyone needing renovations!"
Remodeling - Kitchen & Bathroom Project
The entire bathroom was waterproofed and slopped perfectly to prevent leaking, but maintain her stability in either wheelchair or with arm braces.
A beautiful new kitchen in a venerable old home.
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project

+24

1 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for MSW Remodeling, LLC
MSW Remodeling, LLC
4.9(
12
)

Serving Portland, OR and surrounding areas

Approved

In business since 2023

Free estimates

Customers say: Terrific value

"I received several bids for my fence project. I was quit surprised to learned most are specialized in the fact they only install the fence. They do not stain their finished work. But of course they have someone they can recommend. I have a small retaining wall that needed shored up and completed. They don't do it, but they know someone they could recommend. Well lucky for me I found Micheal. He gave me a fair and reasonable bid for all the work I needed completed. He and his crew worked on my project in a timely manner. I would recommend MSW Remodeling LLC to others. I plan to use Michael in the future for my other honey do list."
My jobs
My jobs
My jobs
My jobs
My jobs

+30

Response time20 mins
3 neighbors recently requested a quote
Recommended by75%of homeowners
Integrity Construction & Restoration, Inc.
4.6(
42
)

Serving Portland, OR and surrounding areas

Approved

In business since 2007

Free estimates

Small jobs welcome

"I had originally hired a different contractor who never finish the job. Phil and his amazing crew came in and did amazing fast work. Iâ m so impressed I would highly recommend them. They remodel our basement where there was a kitchen living room and bedroom. They completed in within a reasonable amount of time and very fair on their pricing."
patio cover
walk in shower
bathroom remodels
Two level cedar deck.
Before picture.

+26

Recommended by97%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.