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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

    Happy at Home Contracting LLC Logo

    In business since 2018

    Seattle, WA·

    Remodeling, Additions, Fence and deck installation and repair , and 4 more

    About us: "We're new to Angi but have worked in real estate since 2006. In an ever tightening market, our clients wanted more options and less hassles so we created Happy at Home Contracting in 2018. Our goal was to streamline buying and selling through home renovation. Locally owned and broadly represented, our family enjoys spending time with others to develop lasting relationships through business, friendship and creativity. We can walk you from the threshold through planning, permitting and design all the way to the finish line in a few weeks or a couple months; our crew even likes to work on weekends. Free written estimates provided within a week. Work always stared on an agreed date. What can we do for you?"

    ZM

    In business since 2019

    Remodels, General Contracting, Bathroom , and 1 more

    About us: "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."

    GA
    Gold Bar, WA·

    General Construction

    "I have been using their services for 10 years, and I greatly appreciate their integrity, trust, dedication, and the quality of their work. I would highly recommend them!"

    Glenn B. in January 2021

    HR
    Seattle, WA·

    Remodels

    "Hugo and Jorge were great to work with. Our bathroom remodel turned out extremely well. I wouldnâ t hesitate to recommend them or to use them again!"

    Bruce L. in December 2022

    Arrow North Construction, LLC Logo
    Shoreline, WA·

    Additions and Remodels

    "Arrow North installed a new backsplash in our kitchen and everything came out perfect. Jordan and his team Kosty were great to work with. They are extremely attentive to detail and consulted us with all the cuts to ensure we would be happy with the finished product. They're the first contractor I've worked with in Seattle that I'm planning to re-hire. I would recommend them anyone and plan to work with Jordan on all my future projects!"

    Jae K. in August 2020

    Soundtech Contracting Logo
    Seattle, WA·

    Basement Remodel, Bathroom Remodel, Kitchen Remodel

    "Bob is super honest and straightforward. He always has in mind that the client has all the options and consideration and establishes a trust that he has the clients best needs in mind!"

    Kim B. in January 2020

    KA

    In business since 2017

    Bonney Lake, WA·

    Kitchen and Bath Remodels, Whole Home Renovations

    About us: "With over 15 years of experence K A M Construction, Inc. takes great pride in our experience, expertise, quality and customer service that we provide to meet your 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."

    EH
    Commerce, CA·

    Custom Home Building, Additions & Remodels

    "The project ran quite a bit longer than expected but the end result is very nice. We were very happy with team that worked our house. The newly tiled shower with a clear glass door is a great update. We also had the existing wood floor refinished and fresh new paint throughout."

    Lily R. in May 2023

    TR

    "The team at Pure Home Remodeling did a fantastic job. We have completed two renovations with Pure Home Remodeling and the second one was just recently. They converted our existing master suite to an additional bedroom with walk-in closets, painted the hallway with addition of crown molding and remodeled the patio. In the patio, they did all the hard-scape (fire pit/table and BBQ area). The paperwork from the estimate all the way to the finish of the work, was organized in details and they finished the entire work with a minor delay. Most of the delays happened because there were several issues with the materials that we purchased and they were not in stock. Most project issues that were raised during the work, were handled professionally by our project manager, his team and subcontractors which helped tremendously in solving them quickly and efficiently. We can't be happier with this entire experience with them and mainly with the way this remodeling came out, because we know personally about bad cases where work was not done professionally OR they were abandon in the middle. We are very thankful that our remodeling project went like that."

    Rob G. in December 2018

Showing 1-9 of 47 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 503 reviews of 503 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)
  • Laundry
  • Bedroom(s)
  • Office
  • Exercise Area
  • Game Room
  • Stairway
  • Home Theater
  • Storage
  • Kitchen
  • Workshop
  • 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

    • NewProject Location: Seattle, WA
      Date: 05/27/23
      Number of Phones & Outside Lines Needed: Talk to pros to receive estimates for project
      Reason for Cable: 2
      Design Preparation: None
      Desired Completion Date: Less than 2 months
      Request Stage: Planning & Budgeting
      Basement Features: Bedroom(s)
      Basement Features: Bathroom(s)
      Basement Features: Stairway
      Comment: We are looking for an estimate to underpin or bench foot from ~6.5 ft to 8 ft ceilings, and then finish, an ~800 sq ft basement. This would be for a house we are considering putting an offer on.
    • NewProject Location: Seattle, WA
      Date: 05/27/23
      Number of Phones & Outside Lines Needed: Talk to pros to receive estimates for project
      Reason for Cable: 2
      Design Preparation: Sketches of basic idea of project
      Desired Completion Date: Timing is flexible
      Request Stage: Planning & Budgeting
      Basement Features: Bathroom(s)
      Basement Features: Home Theater
      Basement Features: Kitchen
      Basement Features: Exercise Area
      Basement Features: Laundry
    • Project Location: Seattle, WA
      Date: 05/06/23
      Design Preparation: Professional Drawings
      Desired Completion Date: Timing is flexible
      Request Stage: Planning & Budgeting
      Basement Features: Bedroom(s)
      Basement Features: Bathroom(s)
      Basement Features: Other
      Basement Features: Kitchen
      Basement Features: Laundry
      Comment: My idea is that rather than tearing down the old house on my lot, build a daylight basement as a first floor, then plunk the old, renovated house on top as an ADU or just more space for me, or both. Lot is small, 5k sqft, and the end result needs to be accessible.
    • Project Location: Seattle, WA
      Date: 05/01/23
      Design Preparation: Sketches of basic idea of project
      Desired Completion Date: Timing is flexible
      Request Stage: Planning & Budgeting
      Basement Features: Bathroom(s)
      Comment: Customer did not provide additional comments. Please contact the customer to discuss the details of this project.

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