What is the average cost to finish a basement?

<div><p>The <a href="https://www.angi.com/articles/how-much-does-it-cost-finish-basement.htm">cost to finish a basement</a> is <b>$18,400</b> for the average homeowner. However, this cost could be as little as $2,800 or as much as $34,500, depending on the basement size and the materials needed. If your basement is already outfitted with electrical and plumbing, expect the cost to fall on the lower end. </p><p>For example, the drywall cost for this project averages around $1,750, but other features, like hiring a plumber, cost between $45 and $200 per hour.</p></div>

How much does a basement remodel cost?

<div><p>The <a href="https://www.angi.com/articles/how-much-does-basement-remodeling-cost.htm">cost to remodel a basement</a> is between <b>$12,100 and $33,400</b> for the average homeowner. The price you pay can be as little as $3,500 or as much as $50,200, depending on the size and condition of your basement and the type of remodel you're doing. </p><p>If you're doing a simple project like adding a home office to your basement, you can expect to pay anywhere from $500 to $3,000. However, if you're adding a bathroom, which is an extensive project, you can expect to pay between $6,600 to $16,500.</p></div>

How is damp proofing different from waterproofing?

<div><p>Damp proofing and waterproofing are both methods to help keep your basement dry. Damp proofing keeps soil moisture from entering your basement, which is helpful since your basement is underground. Waterproofing, however, keeps both soil moisture and liquid water out of the basement, which is essential, especially if you live in a wet environment. Because it’s more protective, waterproofing typically costs more than damp proofing. </p></div>

What's the difference between remodeling a basement and finishing a basement?

<div><p>Although homeowners often use the terms basement remodeling and basement finishing interchangeably, they are quite different terms. </p><p><b>Finishing a basement</b> is the process of taking a basement space that is not habitable and adding elements to make it usable. This includes adding plumbing, flooring, and insulation.</p><p><b>Remodeling a basement</b> means taking an already existing finished basement and changing it, often by adding or removing walls, adding plumbing, or changing the existing flooring. </p></div>

How much does basement waterproofing cost?

<div><p>The <a href="https://www.angi.com/articles/how-much-does-basement-waterproofing-cost.htm">cost of basement waterproofing</a> is <b>$4,950</b> for the average homeowner. However, you could end up paying between <b>$600 and $14,000</b>, depending on factors like basement size, waterproofing method, and the region you live in. </p><p>If you live in an area with heavy rainfall, you might be paying more for waterproofing than if you lived somewhere drier since waterproofing contractors would be in high demand. Likewise, a 500-foot basement costs between <b>$2,500</b> <b>and $5,000</b> to waterproof, but that price rises significantly for a larger basement. </p></div>

Top 10 Best Basement leak repair pros in Bremerton, WA

Wu Construction

13333 Lake City Way NE

13333 Lake City Way NE

Customers say: Super punctual

48 local quotes requested

42 years of experience

Wu Construction Inc, specializes in drainage and foundation systems construction and repair. Since our founding in 1983, we have successfully completed thousands of projects for homeowners and businesses throughout the Northwest. We are the best in our industry, and well regarded by our customers for our excellent service. We are lauded for our speedy responses to inquiries, our efficiency and the quality of our work.

"Great communication and thorough work. Would hire again."

Brian J on April 2025

Wu Construction Inc, specializes in drainage and foundation systems construction and repair. Since our founding in 1983, we have successfully completed thousands of projects for homeowners and businesses throughout the Northwest. We are the best in our industry, and well regarded by our customers for our excellent service. We are lauded for our speedy responses to inquiries, our efficiency and the quality of our work.

"Great communication and thorough work. Would hire again."

Brian J on April 2025

Ram Jack West - Portland

Ram Jack West - Portland

Customers say: Super punctual

Recommended by 91% of Angi customers

29 local quotes requested

At Ram Jack West, we treat customers with respect and care. If you notice cracks, damages, or other issues with your foundation, our team is ready to help. We have innovative systems that have been refined over our 40+ years of experience.

"Purchased a 1906 home in North Portland with an uneven foundation that had been patched for 60 years, but needed serious stabilization work. I contacted multiple foundation contractors in the greater-Portland area and Ram Jack was the only team that provided a full worse-case estimate that included everything that I may need to permanently stabilize the home's foundation. Other contractors' estimates were higher, omitted some of the features of Ram Jack's estimate, and involved greater excavation work around the home. While I was collecting estimates, I had multiple contractors check the levels on the house and could see the home was continuing to sink as much as half and inch in some areas within only a few months, so I knew I had to do something soon as the hotter summers are causing significant erosion to the clay soil in north portland. After paying the 50% down payment, I was quickly in touch with multiple project managers and structural engineers who were able to answer my questions as the work plan developed. I work from home and have two cats, so I was a bit worried about the noise and needing to leave at certain times during the work. Ramjack devised a plan of installing 12 helical piers from the basement and 2 outside for a small crawl space area as well as replacing most of the piers in the basement that had water damage. During the excavation and pier installation, I didn't have to leave my house at all, my cats were fine, none of the utilities ever needed to be turned off and none of the neighbors said they heard more than the hum of the generator outside; insane professionalism. The work team kept me informed at every step of the excavation and pier installation and was able to recover an inch of lift with only a few drywall cracks that I patched in a day. I could have gone further, but wanted to avoid any potential damage to the sewer pipes and stay within my budget. During the lifting, I was standing with the lead construction manager who kept me informed of every risk as we lifted the house bit by bit. During the excavation my basement looked insane with mounds of dirt everywhere, but the construction team cleaned everything flawlessly; all I had to do was a quick mop and the basement was good as new again. Overall had a great experience with RamJack; the 20 years in business shows, most everyone I dealt with had been working with them for years; the construction manager had been doing pier installation for 15 years. The work was expensive, but cheaper than the other local contractors, and certainly way cheaper than replacing the entire basement foundation. Ramjack was even able to take a few grand off the intitial worse-case estimate for solutions not needed. Glad I was able to repair my 120 year old home; here's to another 100 years. Big thanks to Pancho and Stephen, as well as the structural engineers and project managers; I'm very happy with the work."

Kevin S on March 2022

At Ram Jack West, we treat customers with respect and care. If you notice cracks, damages, or other issues with your foundation, our team is ready to help. We have innovative systems that have been refined over our 40+ years of experience.

"Purchased a 1906 home in North Portland with an uneven foundation that had been patched for 60 years, but needed serious stabilization work. I contacted multiple foundation contractors in the greater-Portland area and Ram Jack was the only team that provided a full worse-case estimate that included everything that I may need to permanently stabilize the home's foundation. Other contractors' estimates were higher, omitted some of the features of Ram Jack's estimate, and involved greater excavation work around the home. While I was collecting estimates, I had multiple contractors check the levels on the house and could see the home was continuing to sink as much as half and inch in some areas within only a few months, so I knew I had to do something soon as the hotter summers are causing significant erosion to the clay soil in north portland. After paying the 50% down payment, I was quickly in touch with multiple project managers and structural engineers who were able to answer my questions as the work plan developed. I work from home and have two cats, so I was a bit worried about the noise and needing to leave at certain times during the work. Ramjack devised a plan of installing 12 helical piers from the basement and 2 outside for a small crawl space area as well as replacing most of the piers in the basement that had water damage. During the excavation and pier installation, I didn't have to leave my house at all, my cats were fine, none of the utilities ever needed to be turned off and none of the neighbors said they heard more than the hum of the generator outside; insane professionalism. The work team kept me informed at every step of the excavation and pier installation and was able to recover an inch of lift with only a few drywall cracks that I patched in a day. I could have gone further, but wanted to avoid any potential damage to the sewer pipes and stay within my budget. During the lifting, I was standing with the lead construction manager who kept me informed of every risk as we lifted the house bit by bit. During the excavation my basement looked insane with mounds of dirt everywhere, but the construction team cleaned everything flawlessly; all I had to do was a quick mop and the basement was good as new again. Overall had a great experience with RamJack; the 20 years in business shows, most everyone I dealt with had been working with them for years; the construction manager had been doing pier installation for 15 years. The work was expensive, but cheaper than the other local contractors, and certainly way cheaper than replacing the entire basement foundation. Ramjack was even able to take a few grand off the intitial worse-case estimate for solutions not needed. Glad I was able to repair my 120 year old home; here's to another 100 years. Big thanks to Pancho and Stephen, as well as the structural engineers and project managers; I'm very happy with the work."

Kevin S on March 2022

TerraFirma Foundation Systems

TerraFirma Foundation Systems

Customers say: Quick response

Recommended by 100% of Angi customers

68 local quotes requested

Thousands of NW homeowners have trusted TerraFirma Foundation Systems to keep their homes safe, dry and stable since 2005. Nearly half of our business comes from referrals or repeat customers. We can help you too! TerraFirma is the NW expert in home foundations, basement and crawl space waterproofing, concrete leveling, and wall stabilization.

"Great; competitive price, installation went great, friendly and responsive staff in person and office"

Andrew M on February 2020

Thousands of NW homeowners have trusted TerraFirma Foundation Systems to keep their homes safe, dry and stable since 2005. Nearly half of our business comes from referrals or repeat customers. We can help you too! TerraFirma is the NW expert in home foundations, basement and crawl space waterproofing, concrete leveling, and wall stabilization.

"Great; competitive price, installation went great, friendly and responsive staff in person and office"

Andrew M on February 2020

Rain Pros Inc

31620 23rd Ave S, #306

31620 23rd Ave S, #306

Customers say: Super punctual

Recommended by 91% of Angi customers

513 local quotes requested

Rain Pros is Puget Sounds premier full-service sprinkler and drainage company, with a reputation of unmatched customer service and exceptional quality. Our professionals have years of experience in drainage and irrigation installation, repair and maintenance. We are very proud to be growing company and leader in each of our fields. For bid requests regarding the installation of a new sprinkler or drainage system please email our general manager ([email protected]). For drainge repair and inspection requests please contact our service coordinator at (253) 678-7111, additionally you can email- [email protected] to immediately cue for with our service department.

"I was stressed to the max thinking the home I just purchased had a foundation issue after being told so many things from different companies I turned to Angi’s list and I had totally forgot about my appointment with Rainpros Joel ended up doing the inspection and literally saving me from a stress stroke. He was patient and explained everything as clear as he could over the phone. I have a busy life so it’s not easy to work with me and Joel did just that. Even through a misunderstanding he was still very conscientious and quoted us a great price for the work done and gave me back some peace knowing the foundation wasn’t the problem."

Crystal M on January 2025

Rain Pros is Puget Sounds premier full-service sprinkler and drainage company, with a reputation of unmatched customer service and exceptional quality. Our professionals have years of experience in drainage and irrigation installation, repair and maintenance. We are very proud to be growing company and leader in each of our fields. For bid requests regarding the installation of a new sprinkler or drainage system please email our general manager ([email protected]). For drainge repair and inspection requests please contact our service coordinator at (253) 678-7111, additionally you can email- [email protected] to immediately cue for with our service department.

"I was stressed to the max thinking the home I just purchased had a foundation issue after being told so many things from different companies I turned to Angi’s list and I had totally forgot about my appointment with Rainpros Joel ended up doing the inspection and literally saving me from a stress stroke. He was patient and explained everything as clear as he could over the phone. I have a busy life so it’s not easy to work with me and Joel did just that. Even through a misunderstanding he was still very conscientious and quoted us a great price for the work done and gave me back some peace knowing the foundation wasn’t the problem."

Crystal M on January 2025

MTU Services LLC

5509 East Cataldo Avenue

5509 East Cataldo Avenue

Customers say: Quick response

Recommended by 100% of Angi customers

70 local quotes requested

Protect the investment you’ve made with the knowledgeable team at MTU Services LLC. We are your local basement and foundation experts serving all of Washington state and North Idaho. We offer customized basement waterproofing, foundation repair, concrete crack repair, and basement sump pump solutions and egress windows for your home. Contact MTU Services LLC today to learn more about how we can help you protect your home. Give us a call to request a quote or to schedule service. Services include: leaking basement or crawl space repairs, foundation cracks repaired, lifting piers and levelling for your home or building, sup um systems and more.

"We have used MTU Services LLC twice in the last 3 years. Two projects involving extreme foundation repair for our home in Spokane, WA. Mark and his crew are OUTSTANDING in every way! MTU has old fashion values, no price gouging, detailed bids and the crew is excellent in communication with the home owner while on site each day. Our major repairs took months because the original builder in the 1950's did not put in appropriate footers and a portion of our house began to sink. MTU also completely gutted a basement room that was compromised, jack hammered the concrete out, installed new metal ceiling beams, posts, dug new footers, metal mesh on the floor, poured and leveled the brand new floor. The hardest working real men I have seen in decades and no complaining what soever. Mark is great in keeping in touch with home owner on any questions, concerns, and is excellent on educating the homeowner along the way. One of the best companies I have ever had the pleasure to work with!"

Theresa M on January 2025

Protect the investment you’ve made with the knowledgeable team at MTU Services LLC. We are your local basement and foundation experts serving all of Washington state and North Idaho. We offer customized basement waterproofing, foundation repair, concrete crack repair, and basement sump pump solutions and egress windows for your home. Contact MTU Services LLC today to learn more about how we can help you protect your home. Give us a call to request a quote or to schedule service. Services include: leaking basement or crawl space repairs, foundation cracks repaired, lifting piers and levelling for your home or building, sup um systems and more.

"We have used MTU Services LLC twice in the last 3 years. Two projects involving extreme foundation repair for our home in Spokane, WA. Mark and his crew are OUTSTANDING in every way! MTU has old fashion values, no price gouging, detailed bids and the crew is excellent in communication with the home owner while on site each day. Our major repairs took months because the original builder in the 1950's did not put in appropriate footers and a portion of our house began to sink. MTU also completely gutted a basement room that was compromised, jack hammered the concrete out, installed new metal ceiling beams, posts, dug new footers, metal mesh on the floor, poured and leveled the brand new floor. The hardest working real men I have seen in decades and no complaining what soever. Mark is great in keeping in touch with home owner on any questions, concerns, and is excellent on educating the homeowner along the way. One of the best companies I have ever had the pleasure to work with!"

Theresa M on January 2025

Customers say: Super punctual

30 local quotes requested

28 years of experience

Groundworks, formerly, Matvey Foundation Repair is the leading structural and concrete repair firm in Western Washington. We specialize in repairing residential and commercial foundations, concrete slabs, bowing/cracked basement walls, sinking floors, concrete porches, settling/cracked foundations, and other structural issues. We raise and level concrete pavements, driveways, and sidewalks. We also offer basement waterproofing. Our expert design technicians provide professional services for commercial, residential, industrial, government, and municipal applications with award-winning products and superior customer service. CALL US TODAY FOR A FREE ESTIMATE!

"Very informative. Clear and concise. Gave us many options. Daniel is a wonderful and honest person and was so helpful with our questions. The crew lead by Anthony, with Jordan, Uriel, and Richard did professional work. The finished product is wonderful and can already feel the results in the house. Would 1000% recommend. Just keep in mind it is a very messy job. These guys do the best they can to keep it clean"

Charles W on May 2025

Groundworks, formerly, Matvey Foundation Repair is the leading structural and concrete repair firm in Western Washington. We specialize in repairing residential and commercial foundations, concrete slabs, bowing/cracked basement walls, sinking floors, concrete porches, settling/cracked foundations, and other structural issues. We raise and level concrete pavements, driveways, and sidewalks. We also offer basement waterproofing. Our expert design technicians provide professional services for commercial, residential, industrial, government, and municipal applications with award-winning products and superior customer service. CALL US TODAY FOR A FREE ESTIMATE!

"Very informative. Clear and concise. Gave us many options. Daniel is a wonderful and honest person and was so helpful with our questions. The crew lead by Anthony, with Jordan, Uriel, and Richard did professional work. The finished product is wonderful and can already feel the results in the house. Would 1000% recommend. Just keep in mind it is a very messy job. These guys do the best they can to keep it clean"

Charles W on May 2025

Andy Construction LLC

Andy Construction LLC

Customers say: Quick response

Recommended by 96% of Angi customers

20 local quotes requested

We are not a big company that you have to go through all the phone calls. Owner Andy Zhang will be the one to answer the phone, provide you the bid, and supervise and inspect the work before finish. We are so confident in our work, quality, and over all experience that we don't need any money down. Our customers don't pay us anything until the work is done and customer is happy! For a house on the market, in most cases, we allow owner pay the full bill through escrow at closing. We pride ourselves in treating every customer with honestly.We looking forward to hear and serve you soon!

"They did a great job"

Chris D on May 2025

We are not a big company that you have to go through all the phone calls. Owner Andy Zhang will be the one to answer the phone, provide you the bid, and supervise and inspect the work before finish. We are so confident in our work, quality, and over all experience that we don't need any money down. Our customers don't pay us anything until the work is done and customer is happy! For a house on the market, in most cases, we allow owner pay the full bill through escrow at closing. We pride ourselves in treating every customer with honestly.We looking forward to hear and serve you soon!

"They did a great job"

Chris D on May 2025

Sparrow Construction Northwest,LLC

1472 Southwest Wildwood Road

New on AngiNew on Angi•

Approved Pro

Sparrow Construction Northwest,LLC

1472 Southwest Wildwood Road

New on AngiNew on Angi•

Approved Pro

22 local quotes requested

8 years of experience

We are a family owned business specializing in new construction, remodeling, decks, and much more. We can help you realize and achieve your dreams for your current home or build you a new home for your family to enjoy. We take the stress so you don’t have to! Just sit back and enjoy the process and watch your dreams come true.

Customers say: Quick response

Recommended by 100% of Angi customers

54 local quotes requested

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business, we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

"Floors look great. Reasonable price."

Karen P on March 2025

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business, we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

"Floors look great. Reasonable price."

Karen P on March 2025

DesignWorks NW

6523 California Ave SW

6523 California Ave SW

Customers say: Quality work

19 local quotes requested

25 years of experience

Phone # (206) 450-9714 Charlene K. Smith (Char) is a Washington State licensed Architect and DesignWorks NW provides complete building design, permit and construction document services for property owners, developers, and contractors throughout the Puget Sound area. We have a thorough understanding of the current complex building and zoning codes, building permit submittal requirements and permit fees specific to each regulatory agency. We’ve mastered the building permit submittal processes for residential development and our expertise extends to new construction, remodels, and additions of any type or size for Single-Family Homes, Guest Houses and Secondary Structures, Garage conversions or second story, Multi-Family Apartments and Condos. DesignWorks NW offers architectural and structural engineering services and is a City of Seattle Department of Construction and Inspections (DCI) Continuously Prepared Applicant (CPA) for construction permits. This means we qualify for immediate permit submittal processing for your project in the City of Seattle, because we have contact with the appropriate staff and know the procedures that get your project approved quickly. This streamlines your building permit application by simplifying the difficult and complicated building permit submittal process. We have over 20-years experience preparing permit and construction documents for various project types and we actively listen to the Client to develop design solutions that reflect their unique requirements and ideas, with a goal of improving property value along the way.

"It went great! At the end of our project we were on time, on budget, happy and are now shopping for builders."

Nick H on July 2024

Phone # (206) 450-9714 Charlene K. Smith (Char) is a Washington State licensed Architect and DesignWorks NW provides complete building design, permit and construction document services for property owners, developers, and contractors throughout the Puget Sound area. We have a thorough understanding of the current complex building and zoning codes, building permit submittal requirements and permit fees specific to each regulatory agency. We’ve mastered the building permit submittal processes for residential development and our expertise extends to new construction, remodels, and additions of any type or size for Single-Family Homes, Guest Houses and Secondary Structures, Garage conversions or second story, Multi-Family Apartments and Condos. DesignWorks NW offers architectural and structural engineering services and is a City of Seattle Department of Construction and Inspections (DCI) Continuously Prepared Applicant (CPA) for construction permits. This means we qualify for immediate permit submittal processing for your project in the City of Seattle, because we have contact with the appropriate staff and know the procedures that get your project approved quickly. This streamlines your building permit application by simplifying the difficult and complicated building permit submittal process. We have over 20-years experience preparing permit and construction documents for various project types and we actively listen to the Client to develop design solutions that reflect their unique requirements and ideas, with a goal of improving property value along the way.

"It went great! At the end of our project we were on time, on budget, happy and are now shopping for builders."

Nick H on July 2024