Top-rated basement remodelers.

Get matched with top basement remodelers in Sumner, WA

Enter your zip and get matched with up to 5 pros

Need a pro for your basement remodel project in Sumner, WA?

Select your specific project to find the pro for you.

TRUSTED BY SUMNER, WA HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon29
    Verified basement remodels reviews

Find Basement remodelers in Sumner

Avatar for Be Home Remodeling
Be Home Remodeling
4.7(
79
)
Basement - Remodel

Serving Sumner, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"I called this company to get a quote for a bathroom remodel. Ben was scheduled to come on site and give me a quote. I felt very comfortable with the quote and Ben. They did a great job on my bathroom finishes and plans a head. I even remodel my kitchen afterwards with them, Ben is very professional and responsive who made this process very easy. I defiantly going to use them again in the future."
Response time9 hrs
Response rate99%
572 neighbors recently requested a quote
Avatar for Streamline Construction and Interiors
Streamline Construction and Interiors
4.8(
36
)
Basement - Remodel

Serving Sumner, WA and surrounding areas

Approved

In business since 1982

Free estimates

Emergency services offered

"I had streamline construction hired to do some repairs and maintenance on my roof. The crew was on time, respectful and courteous. Job was completed in a timely manner with close attention to detail and craftsmanship. I couldn’t be any happier with their work and I will recommend Give them a strong recommendation"
pergola
chimney repair
Kitchen remodel
Kitchen Remodel
Response time8 hrs
3 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Serge's Home Imprvmnt & Rnvtn
Serge's Home Imprvmnt & Rnvtn
5.0(
37
)
Basement - Remodel

Serving Sumner, WA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"HIired Serge Home Improvement, i for a partial remodel of the kids bath-new shower surround and flooring. During the time, I got the bid and he started work, the laundry room flooded and I asked if he could work on that too. Serge worked with the insurance adjustor and myself to bring the bid in at the insurance companies expectations. He had the laundry room up and running in a couple of days, with lovely new trim. This was a huge relief, as I had now washer for 2 weeks and laundry was piling up. Most of the bids I got for the bathroom work were in $15-$20K or more range. Serge's costs were reasonable and we agreed on what he'd provide and what I'd provide-tile and surround. When asked why the tub should be replaced he explained he wanted to make sure the plumbing was correct. He was right about that, the previous owner had "tiled" himself and done the plumbing. It was mess but Serge fixed it. Furthermore, he used lots of water proofing which gave me peace of mind as the kids splash like crazy. In 2 weeks, the bathroom was finished, and ready to use. I had him re-caulk my tub, and replace light fixtures in the dinning room and family room. It cost a small bit more than I budgeted, but having done remodels in the past I expected that. We are thrilled with the updated bathroom and new light fixtures. I a already discussing future projects with Serge. The best thing about Serge is his doesn't do mind doing projects on your house off and on. My previous contractor stopped taking my projects, because "projects to small and piece meal". Thankfully, Serge doesn't have that attitude."
Siding repair
Siding repair
Siding repair
Siding repair
Fence repair/build

+49

Response time1 day
4 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Northwest Builders & Renovation, Inc.
Northwest Builders & Renovation, Inc.
4.6(
79
)
Basement - Remodel

Serving Sumner, WA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"North West Builders and Renovation helped turned my Kitchen into the dream kitchen I have always wanted. They were quick to answer, listened and helped me with everything. They did the clearing out of the old cupboards and flooring and used my idea to give our family a masterpiece. I recommend them for any renovations, they did an excellent job."
House Remodel, 2025
House Remodel, 2025
House Remodel, 2025
House Remodel, 2025
House Remodel, 2025

+32

Response time3 hrs
Response rate99%
53 neighbors recently requested a quote
Avatar for Iconiq Construction, LLC
Iconiq Construction, LLC
4.9(
31
)
Basement - Remodel

Serving Sumner, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Offers commercial services

"Iconiq Construction Service did an amazing job finishing our basement. The team was professional, efficient, and detail-oriented. The results were outstanding, creating a functional and beautiful space. Highly recommend their services!"
kitchen remodel
Kitchen remodel
addition project
bathroom remodel
bathroom remodel

+2

Response time1 day
Response rate94%
3 neighbors recently requested a quote
Avatar for NW TOPNOTCH REMODEL LLC
NW TOPNOTCH REMODEL LLC
5.0(
15
)
Basement - Remodel

Serving Sumner, WA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"We had a wonderful experience with NW Topnotch painting! They are not only very professional, but will also go above and beyond for their clientes. They are very detailed and dedicated when it comes to their job and I will definitely be using them in the future!"
Paint
Remodel
Exterior Repaint
Repaint
Kitchen Flooring

+95

Response time9 hrs
Response rate88%
5 neighbors recently requested a quote
Avatar for BZR Remodeling
BZR Remodeling
5.0(
4
)
Basement - Remodel

Serving Sumner, WA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"If your'e looking for trustworthy and stress free remodel, these are your guys. My wife and I were away for almost the entire project. Sean managed it wonderfully. He updated us every step of the way. Crew was great and respectful towards our home and neighbors. They did our master bathroom and hopefully we can start working on ideas for our guest bathroom. Excellent job BZR if i could give more than a 5 star I would."
Everett, Wa- Full Bathroom
Snohomish, Wa- Kitchen
Woodinville, Wa- Full Bathroom
Federal Way, Wa- Patio Renovation from old deck to stone walkways, retaining walls and pavers.
University Dr, Wa.- Kitchen

+7

11 neighbors recently requested a quote
...
Showing 1-10 of 289
Basement Remodel questions, answered by experts

Yes, in most cases, finishing a basement is worth the cost. The project adds valuable, usable square footage to your home and typically provides a return on investment (ROI) of 70% to 75%. For example, an average basement refinishing project costing $32,000 could add between $22,400 and $24,000 to your property's value. The final value added depends on factors like your location, the quality of materials and workmanship, and the features you include, such as a living space, bedroom, or bathroom. To be officially counted in your home's total square footage, the finished space must comply with all local building codes, including requirements for points of egress. However, in areas prone to flooding, a finished basement might be seen as a liability by potential buyers and could potentially decrease your home's value.

Installing a bathroom in a basement isn’t a project for most homeowners. Many parts—plumbing, electricity, and carpentry—go into this project, each requiring expert-level knowledge and tools. One miscalculation can lead to very expensive repairs. Plus, some homeowner’s insurance might not pay for damages caused by a homeowner DIYing this project. You can protect yourself by allowing the pros to complete this job for you. 

Walkout basements are not generally included in a home’s square footage, although they may be if they meet certain conditions that depend on local regulations. A finished walkout basement used as a living space may be counted toward square footage in some locations as long as all codes for livable space are met.

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.

A finished basement must have a heat and electrical supply with an entrance that meets building code requirements, such as a stairwell to the home's main living space. It often must include finished walls, ceilings, and floors. If the finished basement includes a bedroom, it should have a heat source, an egress window, and a closet.

Remodeling, as opposed to finishing, means altering an already finished basement by adding a bathroom, bedroom, or living area.

The Sumner, WA homeowners’ guide to basement remodels

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