Top-rated basement remodelers.

Get matched with top basement remodelers in Mercer Island, WA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Basement remodelers in Mercer Island

Avatar for Home Care Contractors, LLC

Home Care Contractors, LLC

10634 Riverside Dr E Ste 205
4.84(
19
)
Approved Pro

Home Care Contractors, LLC

10634 Riverside Dr E Ste 205
4.84(
19
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
8 years of experience

Home Care Contractors, LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"Overall good experience with HCC."

Jessica B on November 2021

Home Care Contractors, LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"Overall good experience with HCC."

Jessica B on November 2021


Avatar for Rivera Construction, LLC

Rivera Construction, LLC

125 SW 112th St #A612
5.00(
3
)
Approved Pro

Rivera Construction, LLC

125 SW 112th St #A612
5.00(
3
)
Approved Pro
1 years of experience
Free onsite estimate

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"I hired Rivera Construction to build me a new deck. Carlos was very polite to work with. He has great craftsmanship and does beautiful work. I couldn’t be more happier with the deck and privacy wall he built. I would definitely hire him again for future projects."

Joe B on June 2025

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"I hired Rivera Construction to build me a new deck. Carlos was very polite to work with. He has great craftsmanship and does beautiful work. I couldn’t be more happier with the deck and privacy wall he built. I would definitely hire him again for future projects."

Joe B on June 2025


Your Home Builders, Inc.

1455 NW Leary Way
5.00(
1
)
Approved Pro

Your Home Builders, Inc.

1455 NW Leary Way
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"Gil did an amazing job of figuring out exactly what I needed, and he hired an amazing crew to get it done. This is by far the best home renovation experience I've ever had. Gil and Oliver both were very thorough in figuring out what needed to be done, and every step of the way if there was ever any ambiguity, they asked questions and came up with great solutions for everything that came up. I have never before had such a good experience with a home renovation, and I wish all contractors were as good as them. My project was fairly involved, with a complete renovation of my kitchen, dining room, and laundry room, and yet the whole process took under a month to get done, and it was done right the first time. I wholeheartedly recommend Your Home Builders. No complaints at all."

j s on December 2022

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"Gil did an amazing job of figuring out exactly what I needed, and he hired an amazing crew to get it done. This is by far the best home renovation experience I've ever had. Gil and Oliver both were very thorough in figuring out what needed to be done, and every step of the way if there was ever any ambiguity, they asked questions and came up with great solutions for everything that came up. I have never before had such a good experience with a home renovation, and I wish all contractors were as good as them. My project was fairly involved, with a complete renovation of my kitchen, dining room, and laundry room, and yet the whole process took under a month to get done, and it was done right the first time. I wholeheartedly recommend Your Home Builders. No complaints at all."

j s on December 2022


Avatar for Contemporary Home Construction, LLC

Contemporary Home Construction, LLC

9226 NE 133rd Street
5.00(
12
)
Approved Pro

Contemporary Home Construction, LLC

9226 NE 133rd Street
5.00(
12
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
22 years of experience

With over 15 years of experience in the home improvement industry in King County, I am a highly professional and reputable contractor that can tackle all your interior home remodeling needs. I can handle anything from basement to kitchen remodels. Give me a call for a free estimate. I look forward to speaking with you!

"Contemporary Home Construction is a very good company. I recently availed services from them and the entire process was smooth and stress free. Their teams expertise and creativity shines through every aspect of the project. They were attentive to my preferences, communicated effectively and kept me informed throughout. I am extremely satisfied with their work and would not hesitate to recommend them to friends and family."

Abigail W on September 2023

With over 15 years of experience in the home improvement industry in King County, I am a highly professional and reputable contractor that can tackle all your interior home remodeling needs. I can handle anything from basement to kitchen remodels. Give me a call for a free estimate. I look forward to speaking with you!

"Contemporary Home Construction is a very good company. I recently availed services from them and the entire process was smooth and stress free. Their teams expertise and creativity shines through every aspect of the project. They were attentive to my preferences, communicated effectively and kept me informed throughout. I am extremely satisfied with their work and would not hesitate to recommend them to friends and family."

Abigail W on September 2023


Avatar for RidgeRun Construction, LLC

RidgeRun Construction, LLC

8400 SE 34th Pl
5.00(
2
)
Approved Pro

RidgeRun Construction, LLC

8400 SE 34th Pl
5.00(
2
)
Approved Pro
Free onsite estimate

RidgeRun Construction transforms homes throughout the greater Seattle area with reliable renovation expertise. Our team specializes in residential projects, from kitchen and bathroom updates to full home transformations. We pride ourselves on delivering quality craftsmanship on schedule and within budget, while maintaining strict building code compliance and safety standards. Our comprehensive service includes project management, skilled trade coordination, and transparent communication throughout every phase of your renovation. At RidgeRun Construction, we turn your home improvement vision into reality with results that exceed expectations

"Ed did a fantastic job! From the quality of work, the timeliness and the clear communication, my experience was wonderful. Ed is very professional and excellent with problem solving and has great recommendations. He maintained the agreed-upon specifications and terms of the contract. I highly recommend Ed and I am looking forward to working with him again in the future. Thank you, Ed! "

Kayla H on September 2025

RidgeRun Construction transforms homes throughout the greater Seattle area with reliable renovation expertise. Our team specializes in residential projects, from kitchen and bathroom updates to full home transformations. We pride ourselves on delivering quality craftsmanship on schedule and within budget, while maintaining strict building code compliance and safety standards. Our comprehensive service includes project management, skilled trade coordination, and transparent communication throughout every phase of your renovation. At RidgeRun Construction, we turn your home improvement vision into reality with results that exceed expectations

"Ed did a fantastic job! From the quality of work, the timeliness and the clear communication, my experience was wonderful. Ed is very professional and excellent with problem solving and has great recommendations. He maintained the agreed-upon specifications and terms of the contract. I highly recommend Ed and I am looking forward to working with him again in the future. Thank you, Ed! "

Kayla H on September 2025


Avatar for Interbay Construction

Interbay Construction

1020 108th Ave NE, Unit 501
4.67(
3
)
Approved Pro

Interbay Construction

1020 108th Ave NE, Unit 501
4.67(
3
)
Approved Pro
Customers say: Quick response
18 local quotes requested
2 years of experience

INTERBAY CONSTRUCTION is taking proud to serve Great Seattle area home improvement service needs! family owned and operated. Owner has over 15+ years of experience in the industry. They're excite to take on new clients immediately. Call today for a free estimate on your next project! They are the one stop shop for all of your home improvement needs.

"I love love my new deck. It is now better than when it was originally built. The stairs were rotting out and new stairs replaced them. Half of the flooring was replaced as well as top of railing. All the folks I dealt with were very professional, friendly and easy to work with. The person who gave the bid was great. The guys that built the deck knew what they were doing. The guy that picked up the old parts was great also. I am very happy with Interbay Construction. Thank you very much!"

Darryl Z on September 2024

INTERBAY CONSTRUCTION is taking proud to serve Great Seattle area home improvement service needs! family owned and operated. Owner has over 15+ years of experience in the industry. They're excite to take on new clients immediately. Call today for a free estimate on your next project! They are the one stop shop for all of your home improvement needs.

"I love love my new deck. It is now better than when it was originally built. The stairs were rotting out and new stairs replaced them. Half of the flooring was replaced as well as top of railing. All the folks I dealt with were very professional, friendly and easy to work with. The person who gave the bid was great. The guys that built the deck knew what they were doing. The guy that picked up the old parts was great also. I am very happy with Interbay Construction. Thank you very much!"

Darryl Z on September 2024


Greg Appert Construction

15803 Gold Bar Drive
5.00(
1
)
Approved Pro

Greg Appert Construction

15803 Gold Bar Drive
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
29 years of experience

We take great pride in our 5 plus years of experience, expertise, quality, and customer service that we provide to meet the consumer needs. It is our mission to provide excellent quality 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.

"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 on January 2021

We take great pride in our 5 plus years of experience, expertise, quality, and customer service that we provide to meet the consumer needs. It is our mission to provide excellent quality 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.

"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 on January 2021


Avatar for Renovate Construction, LLC

Renovate Construction, LLC

1523 NW Ballard Way
4.98(
21
)
Approved Pro

Renovate Construction, LLC

1523 NW Ballard Way
4.98(
21
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
7 years of experience

Renovate Design/Build is a full-service woman-owned residential remodeling firm servicing the Greater Seattle Area. When you hire Renovate Design/Build, you get expert service every step of your renovation, from floor plans to detailed design through construction. We specialize in basement remodels, bathrooms, kitchens, decks, additions, and ADUs. Each person on our team is an integral part of our company's success, providing excellent service and beautifully finished remodel projects for our clients. As a small business, every job is important to our team at Renovate and you are never just a number. Please feel free to contact us directly at 206-650-1287 or projects@renovatebuilt.com. You can also look at our work on our website, at www.renovatebuilt.com. We look forward to working with you! - The Renovate Team

"We worked with Renovate from August 2024 through April 2025. Our experience was exceptional. Ross, Eric, and Jeremiah were efficient and effective, treating our project with great care. The Renovate team stands out in several ways: - Their pricing is transparent. We paid an hourly cost and subcontractor costs, plus a fixed mark-up, which aligned incentives. Amanda provided receipts and timesheets regularly. - They have superb attention to detail. They pointed out issues we might have missed and ensured they were fixed. - They were super responsive, encouraging us to text or email any time and often responding quickly. They kept us updated on the timeline and explained any delays. - They have a strong client focus. They addressed subcontractor errors quickly and reminded us to ask for what we wanted, even if non-standard. They provided recommendations but let us make the final decisions. We highly recommend the Renovate team. For our more detailed review, see Google."

Mark V on May 2025

Renovate Design/Build is a full-service woman-owned residential remodeling firm servicing the Greater Seattle Area. When you hire Renovate Design/Build, you get expert service every step of your renovation, from floor plans to detailed design through construction. We specialize in basement remodels, bathrooms, kitchens, decks, additions, and ADUs. Each person on our team is an integral part of our company's success, providing excellent service and beautifully finished remodel projects for our clients. As a small business, every job is important to our team at Renovate and you are never just a number. Please feel free to contact us directly at 206-650-1287 or projects@renovatebuilt.com. You can also look at our work on our website, at www.renovatebuilt.com. We look forward to working with you! - The Renovate Team

"We worked with Renovate from August 2024 through April 2025. Our experience was exceptional. Ross, Eric, and Jeremiah were efficient and effective, treating our project with great care. The Renovate team stands out in several ways: - Their pricing is transparent. We paid an hourly cost and subcontractor costs, plus a fixed mark-up, which aligned incentives. Amanda provided receipts and timesheets regularly. - They have superb attention to detail. They pointed out issues we might have missed and ensured they were fixed. - They were super responsive, encouraging us to text or email any time and often responding quickly. They kept us updated on the timeline and explained any delays. - They have a strong client focus. They addressed subcontractor errors quickly and reminded us to ask for what we wanted, even if non-standard. They provided recommendations but let us make the final decisions. We highly recommend the Renovate team. For our more detailed review, see Google."

Mark V on May 2025


Avatar for Mount Baker Remodeling

Mount Baker Remodeling

2534 34th Avenue South
4.29(
7
)
Approved Pro

Mount Baker Remodeling

2534 34th Avenue South
4.29(
7
)
Approved Pro
24 years of experience
Free onsite estimate

Since 2000 Mount Baker Remodeling has been expanding its circle of clients through a variety of high quality remodeling projects - kitchens, baths, basements, additional dwelling units, and more. We look forward to helping you create a beautiful, enjoyable and practical backdrop to your home life - a home remodeled for better living. MBR gives special attention to customized interior/exterior architectural and decorative details that create one-of-a kind living spaces. Mount Baker Remodeling uses the highest quality products to ensure that your remodel stands the test of time. We strive to complete every project, large or small, on time and on budget. With team collaboration, we turn your vision into reality.

" We engaged My Baker after our basement flooded a few years ago. They did very good work on a project despite it being during the pandemic. Their workers were respectful and the project was finished on budget at quality standards we were thrilled with. "

Jason S on July 2025

Since 2000 Mount Baker Remodeling has been expanding its circle of clients through a variety of high quality remodeling projects - kitchens, baths, basements, additional dwelling units, and more. We look forward to helping you create a beautiful, enjoyable and practical backdrop to your home life - a home remodeled for better living. MBR gives special attention to customized interior/exterior architectural and decorative details that create one-of-a kind living spaces. Mount Baker Remodeling uses the highest quality products to ensure that your remodel stands the test of time. We strive to complete every project, large or small, on time and on budget. With team collaboration, we turn your vision into reality.

" We engaged My Baker after our basement flooded a few years ago. They did very good work on a project despite it being during the pandemic. Their workers were respectful and the project was finished on budget at quality standards we were thrilled with. "

Jason S on July 2025


Avatar for AllPro Remodeling Specialists

AllPro Remodeling Specialists

7727 Tyee Rd
5.00(
13
)
Approved Pro

AllPro Remodeling Specialists

7727 Tyee Rd
5.00(
13
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
52 local quotes requested

AllPro Drywall and Construction Services, LLC, has the experience and knowledge necessary to make sure that your project is completed on time with quality service and workmanship. We will help you design your new space and we strive to complete each project on time and at or under budget. Our years of experience have given us the knowledge and skills needed to accomplish this from day one and throughout the duration of the project. Your satisfaction is important to us. Let us show you the difference true professionalism can mean to you. We are a family owned business and we want everything to be done 110%. It's all about the customer and what you want, plain and simple. Positive attitudes, responsible, reliable, fast and perfect! If you want professional work, positive attitudes, strive for perfection, clean work places, fast work and caring contractors, then you want us to do your work!

"They were awesome"

Judy B on December 2022

AllPro Drywall and Construction Services, LLC, has the experience and knowledge necessary to make sure that your project is completed on time with quality service and workmanship. We will help you design your new space and we strive to complete each project on time and at or under budget. Our years of experience have given us the knowledge and skills needed to accomplish this from day one and throughout the duration of the project. Your satisfaction is important to us. Let us show you the difference true professionalism can mean to you. We are a family owned business and we want everything to be done 110%. It's all about the customer and what you want, plain and simple. Positive attitudes, responsible, reliable, fast and perfect! If you want professional work, positive attitudes, strive for perfection, clean work places, fast work and caring contractors, then you want us to do your work!

"They were awesome"

Judy B on December 2022

...
Showing 1-10 of 976
FAQs for basement remodeling projects in Mercer Island, WA

While the terms remodeling, renovating, and finishing are often used interchangeably, there are some differences. Remodeling your basement transforms the space by changing its layout, adding new features, or altering its function. Renovating restores the existing space to like-new condition without major structural changes. Finishing converts an unfinished basement into a livable area with walls, ceilings, and flooring.

A full basement remodel typically takes two to six weeks, depending on the project's complexity and any unforeseen challenges. Factors like design changes, permitting, and material availability can affect the timeline, as well as the availability of the contractors you’re working with. Remember that the bigger the project, the longer it will take to complete.

Remodeling your basement is not just about gaining extra space—it's a savvy investment. You can expect around a 70% return on investment (ROI), comparable to other major home improvements like kitchen or bathroom remodels. Adding functional living space boosts your home's value and appeals to potential buyers. Plus, converting your basement into a rental apartment could provide additional income, increasing your return even more.

The Mercer Island, WA homeowners’ guide to basement remodelings

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

  • A renovated kitchen with a waterfall island

    HomeAdvisor’s DIY Kitchen Remodel Cost Guide looks at the cost of buying supplies and doing the work yourself. Find the key cost factors and how to cut expenses.

  • Secret room within bookcase

    HomeAdvisor's expert guide walks you through the cost to build a secret room, whether you're creating a safe room for security or a fun space to fulfil your childhood fantasies. Use this guide to help plan your secret room project and explore room, concea

  • outdoor patio bar

    Explore the cost to build a bar in your home and learn how materials, wet vs. dry bars, and labor costs influence the total price of your project.