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Basement leak repair pros in Lopez Island

Avatar for Groundworks
Groundworks
18915 16th Ave S
4.44(
162
)
Approved Pro
Groundworks
18915 16th Ave S
4.44(
162
)
Approved Pro
Customers say: Super punctual
82 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


Avatar for Groundworks
Groundworks
18931 59TH AVE NE
4.83(
18
)
Approved Pro
Groundworks
18931 59TH AVE NE
4.83(
18
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
25 local quotes requested

In 2006, Dan Malsch founded Rainy Day Crawl Space & Basement and brought residential and commercial foundation repair solutions to the north western Washington area. In 2024, Rainy Day Basement & Crawl Space joined forces with Groundworks, the nation’s leading and fastest-growing foundation repair and water management solutions provider and rebranded under the Groundworks name. They will continue to offer industry-leading technology and resources to more customers across northwest Washington. Groundworks provides elite customer service and quality home solutions for all foundation repair, basement waterproofing, and concrete repair needs. Call for your FREE inspection today!

"I don't leave a lot of reviews, but the Groundwork crew and the encapsulation work are exceptional, so here goes. We have a pretty large crawl space under our 30-year old house. The team (Wyatt, Zane L. And Volodymyr M.) worked really diligently to get the 5 day job done. They managed a huge amount of cleared-out debris, and thoroughly cleaned up all of the construction material after they installed. No sign of any dust, garbage or debris after they finished the job. Not even a staple. The encapsulation looks fantastic and it's so nice to have the area dry, insulated and clean. Oh, and they were able to install the dehumidifier in a place that is easily accessible when we need to clean the filter. Just really glad we decided to do this. Wyatt S. Went out of his way to keep us well informed of when the team coming each day, when they took breaks and when they were going home at night. He shared progress photos each day and addressed all of my concerns. I've worked with many contractors and these guys are at the top of their game."

Wendy W on May 2025

In 2006, Dan Malsch founded Rainy Day Crawl Space & Basement and brought residential and commercial foundation repair solutions to the north western Washington area. In 2024, Rainy Day Basement & Crawl Space joined forces with Groundworks, the nation’s leading and fastest-growing foundation repair and water management solutions provider and rebranded under the Groundworks name. They will continue to offer industry-leading technology and resources to more customers across northwest Washington. Groundworks provides elite customer service and quality home solutions for all foundation repair, basement waterproofing, and concrete repair needs. Call for your FREE inspection today!

"I don't leave a lot of reviews, but the Groundwork crew and the encapsulation work are exceptional, so here goes. We have a pretty large crawl space under our 30-year old house. The team (Wyatt, Zane L. And Volodymyr M.) worked really diligently to get the 5 day job done. They managed a huge amount of cleared-out debris, and thoroughly cleaned up all of the construction material after they installed. No sign of any dust, garbage or debris after they finished the job. Not even a staple. The encapsulation looks fantastic and it's so nice to have the area dry, insulated and clean. Oh, and they were able to install the dehumidifier in a place that is easily accessible when we need to clean the filter. Just really glad we decided to do this. Wyatt S. Went out of his way to keep us well informed of when the team coming each day, when they took breaks and when they were going home at night. He shared progress photos each day and addressed all of my concerns. I've worked with many contractors and these guys are at the top of their game."

Wendy W on May 2025


Avatar for Burlingame Contracting
Burlingame Contracting
3780 Britton Rd
5.00(
15
)
Approved Pro
Burlingame Contracting
3780 Britton Rd
5.00(
15
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
21 local quotes requested

We are a new local business with 30 years of experience in the industry. We can act as General contractors on a large project or take on smaller sub-contracts. Depending on the job we bill for time and materials, or a lump sum total with 40%-50% due at signing of the contract

"Paul Burlingame (and team) constructed a basement garage and attached ADU on the side of our 100 year old house - no small feat at all. Initially we were a little guarded because of all the horror stories you hear about shiesty contractors, but our experience with Paul has been nothing but positive throughout the entire build. He has a keen attention to detail and values good quality work. For example, there were a couple crucial details that were not described by our engineer, and Paul worked hard to determine the right course of action. In the end, what he came up with was better than we could have imagined. Not only is he personable and a knowledgeable contractor, he has an eye for aesthetic which was a delight as we discussed design options, from trim details to pergola hardware. In the end, Paul and his team built us a stunning 800 sf 2 story ADU and 400 sf basement garage, that feels spacious and contemporary while beautifully tying together with the exterior of our existing 1920s Tudor Revival home. I can not recommend Burlingame Contracting enough! Thank you Paul!!"

Claire C on December 2022

We are a new local business with 30 years of experience in the industry. We can act as General contractors on a large project or take on smaller sub-contracts. Depending on the job we bill for time and materials, or a lump sum total with 40%-50% due at signing of the contract

"Paul Burlingame (and team) constructed a basement garage and attached ADU on the side of our 100 year old house - no small feat at all. Initially we were a little guarded because of all the horror stories you hear about shiesty contractors, but our experience with Paul has been nothing but positive throughout the entire build. He has a keen attention to detail and values good quality work. For example, there were a couple crucial details that were not described by our engineer, and Paul worked hard to determine the right course of action. In the end, what he came up with was better than we could have imagined. Not only is he personable and a knowledgeable contractor, he has an eye for aesthetic which was a delight as we discussed design options, from trim details to pergola hardware. In the end, Paul and his team built us a stunning 800 sf 2 story ADU and 400 sf basement garage, that feels spacious and contemporary while beautifully tying together with the exterior of our existing 1920s Tudor Revival home. I can not recommend Burlingame Contracting enough! Thank you Paul!!"

Claire C on December 2022


Avatar for SHERMAN GENERAL CONTRACTING LLC.
SHERMAN GENERAL CONTRACTING LLC.
5.00(
2
)
Approved Pro
SHERMAN GENERAL CONTRACTING LLC.
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 local quotes requested

Here at Sherman General Contracting, we pride ourselves on precision craftsmanship and quality work. Our team specializes in multiple scopes of residential and commercial construction. Including - remodel, new construction, addition, ADU/AAD, custom timber, deck, all exterior and interior assemblies, concrete, excavation, tree removal and more. We bring a positive energy to your project with a high attention to detail and ability to adapt and overcome any obstacle we encounter. Our team is professional, while maintaining a candid approach to our projects which leaves our customers feeling like they can approach us with questions, concerns, and anything in between.

"Sam and his crew are fantastic, they were professional and courteous. Work was completed on time and under budget. I would hire Sherman General again without hesitation."

Andrew E on December 2024

Here at Sherman General Contracting, we pride ourselves on precision craftsmanship and quality work. Our team specializes in multiple scopes of residential and commercial construction. Including - remodel, new construction, addition, ADU/AAD, custom timber, deck, all exterior and interior assemblies, concrete, excavation, tree removal and more. We bring a positive energy to your project with a high attention to detail and ability to adapt and overcome any obstacle we encounter. Our team is professional, while maintaining a candid approach to our projects which leaves our customers feeling like they can approach us with questions, concerns, and anything in between.

"Sam and his crew are fantastic, they were professional and courteous. Work was completed on time and under budget. I would hire Sherman General again without hesitation."

Andrew E on December 2024


Avatar for SKILLWERX CONSTRUCTION INC.
SKILLWERX CONSTRUCTION INC.
2175 Lagerwey Circle
5.00(
6
)
Approved Pro
SKILLWERX CONSTRUCTION INC.
2175 Lagerwey Circle
5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 local quotes requested

Here at SKILLWERX CONSTRUCTION INC. we offer all your home needs. We specialize in: - KITCHEN/BATHROOM REMODELS - HOME ADDITIONS - INTERIOR/EXTERIOR PAINTING - DECKS - CONCRETE And so much more. Give us a call. Fernando S. 360-318-6438

"Very well they were very responsible and paid attention to detail - sought my opinion when needed"

DeeDee L on December 2022

Here at SKILLWERX CONSTRUCTION INC. we offer all your home needs. We specialize in: - KITCHEN/BATHROOM REMODELS - HOME ADDITIONS - INTERIOR/EXTERIOR PAINTING - DECKS - CONCRETE And so much more. Give us a call. Fernando S. 360-318-6438

"Very well they were very responsible and paid attention to detail - sought my opinion when needed"

DeeDee L on December 2022


Avatar for John's Waterproofing Co.
John's Waterproofing Co.
219 Airport Road
4.86(
51
)
Approved Pro
John's Waterproofing Co.
219 Airport Road
4.86(
51
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
42 local quotes requested

John's Waterproofing Co. is the premier waterproofing company serving in Oregon and Washington for over 50 years. We Specialize in Basement and Crawlspace Waterproofing and Repairs, we offer free inspections and estimates along with caring customer service. Contact our office today for your waterproofing needs!

"John’s was quick to respond and were able to get us on the schedule quickly. They communicated effectively and did quality work. I will work with John’s again."

Matt H on October 2022

John's Waterproofing Co. is the premier waterproofing company serving in Oregon and Washington for over 50 years. We Specialize in Basement and Crawlspace Waterproofing and Repairs, we offer free inspections and estimates along with caring customer service. Contact our office today for your waterproofing needs!

"John’s was quick to respond and were able to get us on the schedule quickly. They communicated effectively and did quality work. I will work with John’s again."

Matt H on October 2022


Evolution Drafting
1185 Utah Ave. Suite 107
3.12(
17
)
Evolution Drafting
1185 Utah Ave. Suite 107
3.12(
17
)
2413 local quotes requested

Our firm is a dynamic provider of drafting and house plan services, dedicated to turning your visions into tangible and pleasing structures. With a commitment to excellence, we bring expertise and innovation to every project we undertake. We specialize in comprehensive drafting services tailored to meet diverse client needs. Our offering include: Design: Crafting unique and functional designs that blend creativity with practicality. Drafting Services: Precision and attention to detail in creating accurate and detailed drafts for seamless project execution. 3D Modeling: Bringing designs to life with realistic 3D models that provide a vivid preview of the final structure. Project Management: From concept to completion, we offer end-to-end project management ensuring timely and efficient delivery. Interior Design: Enhancing spaces with innovative interior designs that harmonize aesthetics and functionality. Detail Services Offered: - Building Code Compliance - Construction Documentation - Renovation and Remodeling Plans About our Team: Our team comprises draftsman and project managers, each bringing a unique skill, style and experience to the table. Collaborative teamwork and alliance is at the core of our success, ensuring a holist approach to every project. We take pride in our commitment to delivering high-quality work on every project. Our rigorous quality control measures, pays attention to client requirements, and adherence to industry standards are the cornerstones of our success. Your satisfaction is our top priority and guarantee. At Evolution Drafting, we don't design structures; we create environments that inspire and endure. Work with us and experience the art of living.

"We recently completed an ADU in our backyard, and the process with Evolution Drafting was very smooth from start to finish. I truly felt that my needs were heard—our goal was to create a comfortable space for our daughter and her family when they visit, and the team made that happen. Evolution Drafting was highly responsive, and their revision process made it easy to make adjustments along the way. Great company to work with. Special shout out to our agent Elizabeth. She is so helpful and informative!"

Sarah W on May 2025

Our firm is a dynamic provider of drafting and house plan services, dedicated to turning your visions into tangible and pleasing structures. With a commitment to excellence, we bring expertise and innovation to every project we undertake. We specialize in comprehensive drafting services tailored to meet diverse client needs. Our offering include: Design: Crafting unique and functional designs that blend creativity with practicality. Drafting Services: Precision and attention to detail in creating accurate and detailed drafts for seamless project execution. 3D Modeling: Bringing designs to life with realistic 3D models that provide a vivid preview of the final structure. Project Management: From concept to completion, we offer end-to-end project management ensuring timely and efficient delivery. Interior Design: Enhancing spaces with innovative interior designs that harmonize aesthetics and functionality. Detail Services Offered: - Building Code Compliance - Construction Documentation - Renovation and Remodeling Plans About our Team: Our team comprises draftsman and project managers, each bringing a unique skill, style and experience to the table. Collaborative teamwork and alliance is at the core of our success, ensuring a holist approach to every project. We take pride in our commitment to delivering high-quality work on every project. Our rigorous quality control measures, pays attention to client requirements, and adherence to industry standards are the cornerstones of our success. Your satisfaction is our top priority and guarantee. At Evolution Drafting, we don't design structures; we create environments that inspire and endure. Work with us and experience the art of living.

"We recently completed an ADU in our backyard, and the process with Evolution Drafting was very smooth from start to finish. I truly felt that my needs were heard—our goal was to create a comfortable space for our daughter and her family when they visit, and the team made that happen. Evolution Drafting was highly responsive, and their revision process made it easy to make adjustments along the way. Great company to work with. Special shout out to our agent Elizabeth. She is so helpful and informative!"

Sarah W on May 2025


Whisler Renovations
106 9th St
5.00(
11
)
Whisler Renovations
106 9th St
5.00(
11
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Whisler Renovations is a small LLC owned by Tanner Whisler. I’ve been in the industry for about 8 years. I specialize in flooring, drywall, exterior/interior paint, landscape builds, and many more general construction repairs. I offer excellent prices for top of the line work. Feel free to call for general questions and quotes.

"Tanner was prompt, professional, friendly and respectful! And he did an excellent job!"

Karen S on May 2024

Whisler Renovations is a small LLC owned by Tanner Whisler. I’ve been in the industry for about 8 years. I specialize in flooring, drywall, exterior/interior paint, landscape builds, and many more general construction repairs. I offer excellent prices for top of the line work. Feel free to call for general questions and quotes.

"Tanner was prompt, professional, friendly and respectful! And he did an excellent job!"

Karen S on May 2024


Northwest Nieves construction
No reviews
Northwest Nieves construction
No reviews

Remodeling, tile, siding, concrete, framing, floor, windows, decks,

Remodeling, tile, siding, concrete, framing, floor, windows, decks,


Legacy Remodeling, LLC
4.90(
10
)
Legacy Remodeling, LLC
4.90(
10
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a family owned business that specializes in kitchen and bathroom remodeling. Our belief in strong communications leads to the highest level of professionalism, integrity and honesty in our relationships with our clients. With more than 10 years of experience you can expect to receive quality precise craftsmanship. Our objective is to provide remodeling services at fair and competitive price.

"Legacy Remodeling did an awesome job to our bathrooms and family room. It turned out beautifully and was completed on time. After meeting up with Alvaro (owner) several times to discuss the projects, we decided to hire him. The best part about this renovation was that Alvaro did the work himself with very good eye on details, as well he is very knowledgeable on plumbing, tiles, carpentry and electrical. Also, he has a great crew. Often, they worked weekends and stayed late. We were very happy with Alvaro and his crew and, we plan to hire them again soon for our next house project."

Jerry D on August 2021

We are a family owned business that specializes in kitchen and bathroom remodeling. Our belief in strong communications leads to the highest level of professionalism, integrity and honesty in our relationships with our clients. With more than 10 years of experience you can expect to receive quality precise craftsmanship. Our objective is to provide remodeling services at fair and competitive price.

"Legacy Remodeling did an awesome job to our bathrooms and family room. It turned out beautifully and was completed on time. After meeting up with Alvaro (owner) several times to discuss the projects, we decided to hire him. The best part about this renovation was that Alvaro did the work himself with very good eye on details, as well he is very knowledgeable on plumbing, tiles, carpentry and electrical. Also, he has a great crew. Often, they worked weekends and stayed late. We were very happy with Alvaro and his crew and, we plan to hire them again soon for our next house project."

Jerry D on August 2021

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Basement leak repair services FAQs

The cost to finish a basement is $18,400 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. 

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.

The cost to remodel a basement is between $12,100 and $33,400 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. 

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.

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.

Although homeowners often use the terms basement remodeling and basement finishing interchangeably, they are quite different terms. 

Finishing a basement 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.

Remodeling a basement means taking an already existing finished basement and changing it, often by adding or removing walls, adding plumbing, or changing the existing flooring.

The cost of basement waterproofing is $4,950 for the average homeowner. However, you could end up paying between $600 and $14,000, depending on factors like basement size, waterproofing method, and the region you live in. 

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 $2,500 and $5,000 to waterproof, but that price rises significantly for a larger basement.

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