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TRUSTED BY SANDY, OR HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon26
    Verified basement remodels reviews

Top-Rated Basement remodelers in Sandy - Updated Nov 2026

Integrity Construction & Restoration, Inc.
4.6(
42
)
Basement - Remodel

Serving Sandy, OR and surrounding areas

Approved

In business since 2007

Free estimates

Small jobs welcome

"Hired integrity construction to raise a small section of an attic ceiling to match the height and shape of the rest of the ceiling and to make a half bath bigger by moving a wall into some dead space. Their framing, drywall installation, mudding and taping were excellent. Their suggestions on how to make the bathroom bigger were great and resulted in a tiny half bath becoming a roomy one. These people know their stuff. Will definitely call them again for my next remodeling project."
patio cover
walk in shower
bathroom remodels
Two level cedar deck.
Before picture.

+26

Response time9 hrs
Response rate100%
Recommended by97%of homeowners
Avatar for Madsen Construction
Madsen Construction
5.0(
7
)
Basement - Remodel

Serving Sandy, OR and surrounding areas

Approved

Free estimates

Credit card accepted

We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a locally owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today, and we look forward to working with you!

Decorative fence
Decorative fence
Decorative fence
Business details
Business details

+3

6 neighbors recently requested a quote
Avatar for Elm Construction Services, Inc.
Elm Construction Services, Inc.
4.3(
34
)
Basement - Remodel

Serving Sandy, OR and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"I just want to say thank our project manager Max! He was on top of things and kept the project moving smoothly! I can’t express how stress free this remodel went compared to other remodels I’ve done. He communicates clearly, and followed up regularly. I’m just so impressed with how my new kitchen looks. From the blue prints to real life it’s exactly what I wanted and imagined. Thank you thank you!"
GAF Roof Installation
GAF Roof Installation
GAF Roof Installation
GAF Roof Installation
GAF Roof Installation

+27

Response time5 hrs
Response rate99%
685 neighbors recently requested a quote
Avatar for MRI Construction Services
MRI Construction Services
4.1(
39
)
Basement - Remodel

Serving Sandy, OR and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"I've worked with MRI on many projects at our office building in Lake Oswego and have also hired them for repairs at my home. Every experience has been positive. They are extremely knowledgeable, professional, and capable of handling a wide range of maintenance and construction-related projects. The team is easy to work with, communicates well, and consistently delivers high-quality results. Good people who take pride in their work. I highly recommend them. -Matt P. (OCP Facilities Management)"
Doors
Doors
Doors
Doors
Doors

+196

Response time8 hrs
Recommended by70%of homeowners
Avatar for G & S Premium Construction LLC
G & S Premium Construction LLC
4.5(
2
)
Basement - Remodel

Serving Sandy, OR and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

At G & S Premium Construction LLC, we take great pride in our experience, expertise, quality and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

Remodeling
BigFoot NW Construction, LLC
New to Angi
Basement - Remodel

Serving Sandy, OR and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

Bigfoot NW Construction LLC is an experienced full service Residential General Contractor serving the Greater Portland area. We are a small motivated crew with thousands of hours of experience with many unique and challenging projects in all aspects of Construction, Home Improvement, Remodeling and Property Services. We offer three distinct divisions; Design, Build and Dig. Each division specializing in the Design of a space or property, the build or remodel of the property or home and finally the Dig, hardscape and outdoor living space of your property and home. We offer very competitive pricing, attention to detail and understand every project is unique with your satisfaction as our number one goal.

Avatar for The Renovation Company
The Renovation Company
4.5(
73
)
Basement - Remodel

Serving Sandy, OR and surrounding areas

In business since 2011

Free estimates

Credit card accepted

"We hired Fine Finish for our kitchen remodel and addition, and they did an awesome job.  Our project manager, Aaron was
great, and Mark and his wife kept us up to date with job progress.
We got a project plan up front that told us when we needed to make material decisions to keep the project on track and the project was completed on time and on budget. The new addition blends in perfectly with our craftsman style home which is one of our key requirements in selecting a contractor. 
If you are looking for a remodeling contractor that goes the extra mile on communication, responsiveness and does the job at a competitive price, this is it.

"
Recommended by89%of homeowners
Avatar for Portland Construction LLC
Portland Construction LLC
5.0(
61
)
Basement - Remodel

Serving Sandy, OR and surrounding areas

In business since 2018

Free estimates

Emergency services offered

"Chuy helped us with drywall repair and finishing work in our house- like floor transitions. He did a wonderful job! He was super communicative and was even very understanding when I had to push the start date out a week due to my son being sick. I would definitely recommend him without reservation. We are so happy with the work that he did! It looks great and the price was fair."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+38

Recommended by98%of homeowners
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Basement Remodel FAQs, answered by experts

The time it takes to finish or remodel a basement can vary significantly, ranging from a few weeks to several months or even up to a year. On average, the construction phase can take four to eight weeks, but the total project time can extend to three or four months when including planning and permits. The timeline depends on several factors, including the basement's size, design complexity, the scope of the work, and your contractor's availability. A more detailed breakdown for an average-sized basement might include: framing (3-5 days), electrical and rough-in plumbing (3-5 days), drywall installation (5 days), flooring (2-3 days), and final touches like painting and trim (about a week). If preliminary work like installing a waterproofing system or addressing structural issues is needed, the timeline could extend to six to twelve months. Factors like difficult access, material transport, and ventilation needs can also add to the project's duration.

Basements with persistent moisture problems or flooding shouldn’t be finished until the moisture issues have been fixed. In addition, if your foundation is cracked, you have unmitigated radon levels, or you have asbestos or lead pipes, remediate the underlying problem before finishing your basement. Turning a basement into living space before fixing these issues can lead to serious health risks or structural damage. 

It’s less expensive to finish your basement than it is to build an addition to your home. The average cost to refinish a basement is $32,000 (between $7 and $23 per square foot) while building an addition to your home costs $50,325 ($80 to $210 per square foot). Depending on the size of your basement and other factors, like moving plumbing and electrical, refinishing a basement is a more cost-effective option in most cases.

A walkout basement is considered to be partially below grade because at least one wall is entirely exposed. In some cases and in specific municipalities, inspectors and appraisers will still count walkout basements as below grade, which means the space can’t serve as living space or be rented out. If you intend on using the area as living space or a separate apartment, you should check with your local building department to make sure it’s legal to do so.

In many homes, an unfinished basement is an ideal place for an in-ground pool. The concrete floors, protection against water damage, and access to the ground below your home make this a large contender. Speak with a local basement remodeling contractor to ensure your space is right for the large construction.

The Sandy, OR homeowners’ guide to basement remodels

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