How much do basement finishing contractors typically cost?
- Seattle, Washington Average$25,981
- Typical Range$10,766 - $46,207
- Low End - High End$2,400 - $80,000
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Service Pros
Seattle, WA·
Additions and Remodels, Decks and Masonary, Additions and Deattached ADU's , and 8 more
"They came in after a different contractor abandoned the job and finished everything so fast! They were very responsive and made sure to show all their credentials right from the start. For any upcoming projects I'll definitely reach out to them first!"
BEA881F581D8B19BA7B02975295799C865506041547D12B588BC7D6BA9A25BE8 5. in May 2025
SH
Puyallup, WA·
Home Improvement
"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."
A H. in December 2023
Renton, WA·
Basements, Kitchens, Home extension , and 2 more
"Our two bathrooms were remodeled by BB Builders Pro, who worked carefully with us and went above and beyond to ensure our satisfaction. Highly recommend them for any remodeling services!"
5C5A268702708ABABEB96ED61DE8B127C9F49BEDC1EFFCD70D4ADED37BEACE10 6. in March 2025
Additions and Remodels, Kitchen Remodeling, Decks and Outdoor Living Spaces , and 3 more
"First contacts with this company for 2 bathroom remodel projects. The professionalism, clear communication of what to expect, follow-up --- very excellent! Looking forward to continuing this project."
Alfred W. in September 2024
Renton, WA·
Window Replacements - Framing and Siding Repairs/Replacement., Remodels , kitchens,Baths, Window Replacements - Framing and Siding Repairs/Replacement. , and 4 more
"He was very thorough and was on time."
Gary T. in November 2023
AM
Edmonds, WA·
Renovation, Remodeling, Tile , and 5 more
"Auland was very professional, communicative, and got our project done in a timely matter."
Stephani N. in December 2023
Poulsbo, WA·
Bathroom Remodel, Kitchen Remodel, Sheet rock install and finishing , and 6 more
"These guys were amazing! I am more then happy with my new bathroom. Everything went very smooth from start to finish and they even completed my project ahead of schedule. I will definately use them for my next project too. Thank you for being a great company and for providing quality workmanship."
Danette F. in November 2021
Seattle, WA·
Home Repairs, kitchen remodeling, Room Addition , and 2 more
"I recently hired Iconiq Construction for my bathroom renovation, and I couldnt be happier with the results! From start to finish, the team was professional, attentive, and detail-oriented. They transformed my vision into reality, and the quality of their work exceeded my expectations. The entire process was smooth, and they kept me informed every step of the way. My new bathroom is stunning, functional, and everything I hoped for. Iconiq Construction is definitely a 5-star company, and I highly recommend them to anyone looking for top-notch renovations!"
Ibu I. in December 2024
LR
SEABECK, WA·
Custom Homes, Remodel work
"Great job. Work was done in a timely, friendly and very professional manner, and at a reasonable price. Look forward to using them for our the next project!"
Jill H. in August 2024
Showing 1-9 of 36 results
Costs for related projects in Seattle, WA
- Inspect Waterproofing$2,915 - $6,500
- Remodel a Basement$10,766 - $46,207
- Seal a Basement or Foundation$2,276 - $5,694
Frequently asked questions
- It’s important that you verify their license is still in good standing. Also keep in mind that certain states or provinces don’t require licensing if the job is under a certain dollar amount.
- You can find a list of your state’s licensing requirements on the HomeAdvisor website. Before you get to work with the pro, make sure their qualifications are current and acceptable to you.
- It is always a good idea to get a copy of the pro’s insurance certificate for future records, and in case anything happens. This is a good way to feel more secure in your home project, and to weed out potential scammers.
HomeAdvisor makes it easy to connect with pros near you. You can read reviews, get quotes and book appointments all in one place.
Depending on the type of project, you may find subtle differences in the hiring process. Here’s a look at task-specific advice.
You can use HomeAdvisor to help evaluate a contractor’s qualifications. We put pros through a screening process, and award badges to high-performing contractors. You can find these badges on a pro’s HomeAdvisor profile, and sometimes, his or her website.
Your research doesn’t stop here. Once you’ve found a few prospective companies, make an call to ask a few questions about work history, licensure and more:
- Have you completed a job like this before?
- Do you have a list of references I can contact?
- When are you able to start the job?
In most cases, the responses you get to these three questions will give you a very good idea of the right pro for your project. If you have more than one front-runner, these additional questions can help you narrow it down.
- How many years of experience do you have?
- What’s your permanent business address?
- Are you licensed to work in my area?
- When did you earn your business license?
- How do you handle warranty service complaints?
- Do you have worker’s compensation, property damage and personal liability insurance?
Any good contractor will answer these questions, and most will appreciate dealing with a client that takes such an active interest in finding good service. On the other hand, if a contractor gives you a hard time with these questions, you probably want to find someone else.
Related Projects in Seattle, WA
HomeAdvisor Community Rating
Overall Rating:
Seattle Addition & Remodeling Contractors are rated 4.9 out of 5 based on 373 reviews of 373 pros.
The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. See individual business pages for full, detailed reviews.
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Things to Consider Before You Start Your Basement Makeover:
What features do you want in your basement?
- Bathroom(s)
- Bedroom(s)
- Laundry
- Storage
- Stairway
- Office
- Other
What type of design preparation has been done?
Do you provide these professional services?
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Recent Job Requests for Addition & Remodeling Contractors in Seattle, WA
Project Location: Seattle, WA Date: 01/28/24Design Preparation: None/want recommendationWhat day are you available to meet with an Angi Pro for an assessment?: NAWhat features do you want in your basement? (Check all that apply): StorageSelect the time(s) you are available for the assessment:: EveningSelect the time(s) you are available for the assessment:: AfternoonWhat features do you want in your basement? (Check all that apply): LaundrySelect the time(s) you are available for the assessment:: MorningWhat features do you want in your basement? (Check all that apply): Bathroom(s)What features do you want in your basement? (Check all that apply): OtherComment: We want to finish our basement with walls, flooring, ceilings, 3/4 bath. Other possibilities include kitchenette and re-wiring the house before closing up the ceilings.Project Location: Seattle, WA Date: 01/25/24Design Preparation: None/want recommendationSelect the time(s) you are available for the assessment:: EveningSelect the time(s) you are available for the assessment:: AfternoonWhat features do you want in your basement? (Check all that apply): LaundrySelect the time(s) you are available for the assessment:: MorningWhat features do you want in your basement? (Check all that apply): Bathroom(s)What features do you want in your basement? (Check all that apply): Bedroom(s)Comment: Our basement recently flooded. We have completed the mitigation work, but we are looking for some contractors to give us estimates on the cost of restoring the basement to its original state (e.g. replacing the drywall, carpeting, and flooring that was removed).Project Location: Seattle, WA Date: 01/22/24Design Preparation: None/want recommendationWhat features do you want in your basement? (Check all that apply): OtherComment: I would like to get an estimate for a basement remodel, want to make the ceiling higherProject Location: Seattle, WA Date: 01/22/24Design Preparation: None/want recommendationWhat features do you want in your basement? (Check all that apply): OtherComment: We would like to design an apartment in our basement. We would need drawings and help with permitting.Project Location: Seattle, WA Date: 01/20/24Design Preparation: None/want recommendationWhat features do you want in your basement? (Check all that apply): Bathroom(s)Comment: Just want a toilet for a grandma and if we can afford more okay but need a toilet
