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Basement Finishing Contractors in Seattle, WA

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  1. Answer a few questions about your home project.
  2. Within seconds, get matched with top-rated local pros.
  3. Compare quotes and choose the best pro for the job.

Service Pros

    TD
    Renton, WA·

    Window Replacements - Framing and Siding Repairs/Replacement., Remodels , kitchens,Baths

    "He was very thorough and was on time."

    Gary T. in November 2023

    CS
    Auburn, WA·

    Painting, Floors Installation and hardwood refinishing, Siding Installation , and 11 more

    "They were quiet, efficient, respectful and did a beautiful job painting the exterior of our house for a very reasonable price. I highly recommend them for your house painting needs."

    Lisa L. in September 2023

    A TO Z Custom Remodeling, LLC Logo
    Federal Way, WA·

    Framing Floring cabinets millwork windows, Siding. Painting doors roofing custom powder coated metal railings, Additions and Remodels , and 2 more

    "They were fantastic. Very professional, pleasant to have around the house (always cleaning up before leaving for the day). They remodeled a bathroom ( beautifully done), and fixed a number of broken things at my house. I highly recommend them."

    Barb I. in January 2024

    Prestige Design Logo
    Auburn, WA·

    Flooring

    "Very easy to work with and they did a quality job on the floors in my house. I plan on hiring them for two more upcoming projects."

    Angel M. in December 2023

    H

    "Showed up on time and did a great job, thanks."

    Larry F. in October 2023

    LR
    SEABECK, WA·

    Custom Homes, Remodel work

    "Garage project in 2008, Hired again for project in next house. Fair quote given and honored. Work scheduled quickly and completed on time. I found Chad and his crew to be trustworthy and respectful. Iâ d hire again when need arises."

    Barbara C. in April 2024

    C & S Renovations, LLC Logo

    In business since 2012

    Auburn, WA·

    Entire Home Renovations, Build and repair decks, Fire Damage Restore , and 2 more

    About us: "Welcome to C&S Homes LLC, previously C&S Renovations LLC! Sometimes a simple renovation will turn the home you enjoy into the dream home you absolutely love! Whether you need help with part of your project or your entire project, we can help. We offer full home renovating services. Our reputation for quality work, responsiveness, and competitive pricing has been the primary factor in our success. We would love to meet with you for an in-home consultation to see how we can help you complete your projects. Give us a call today!"

    PC

    Painting, Tile, Cabinets & Countertops , and 2 more

    "I've used this tile contractor for multiple projects in my home, and they never disappoint. Whether it's installing a new backsplash in the kitchen or tiling the floors in the bathroom, their expertise and precision are evident in every detail. They're my go-to choice for all things tile."

    Donna S. in April 2024

    Baklinski Home Improvement Logo
    Mercer Island, WA·

    Handyman, Kitchen remodel, Decks , and 3 more

    "We hired Andrew and his team to install some safety features in our home: grab bars, railings, some dry wall repair. The quality of work was excellent. Andrew and Josiah kept us informed throughout the project. Both men were easy to work with and did a wonderful job of cleaning up as they went along.. We have already hired them for a kitchen project in our home!"

    Mary Beth S. in December 2023

Showing 1-9 of 42 results

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

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 186 reviews of 186 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?

    Find out how HomeAdvisor can help your business

    See Local Demand

    See Recent Leads

    Recent Job Requests for Addition & Remodeling Contractors in Seattle, WA

    • Project Location: Seattle, WA
      Date: 01/28/24
      Design Preparation: None/want recommendation
      What day are you available to meet with an Angi Pro for an assessment?: NA
      What features do you want in your basement? (Check all that apply): Storage
      Select the time(s) you are available for the assessment:: Evening
      Select the time(s) you are available for the assessment:: Afternoon
      What features do you want in your basement? (Check all that apply): Laundry
      Select the time(s) you are available for the assessment:: Morning
      What 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): Other
      Comment: 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: 01/25/24
      Design Preparation: None/want recommendation
      Select the time(s) you are available for the assessment:: Evening
      Select the time(s) you are available for the assessment:: Afternoon
      What features do you want in your basement? (Check all that apply): Laundry
      Select the time(s) you are available for the assessment:: Morning
      What 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: 01/22/24
      Design Preparation: None/want recommendation
      What features do you want in your basement? (Check all that apply): Other
      Comment: I would like to get an estimate for a basement remodel, want to make the ceiling higher
    • Project Location: Seattle, WA
      Date: 01/22/24
      Design Preparation: None/want recommendation
      What features do you want in your basement? (Check all that apply): Other
      Comment: We would like to design an apartment in our basement. We would need drawings and help with permitting.
    • Project Location: Seattle, WA
      Date: 01/20/24
      Design Preparation: None/want recommendation
      What 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

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