Top-rated basement leak repair pros.

Get matched with top basement leak repair pros in Langley, WA

There are 8 highly-rated local basement leak repair pros.

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TRUSTED BY LANGLEY, WA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon154
    Verified basement leak repair services reviews

Find Basement leak repair pros in Langley

Avatar for Groundworks

Groundworks

18931 59TH AVE NE
4.68(
25
)
Approved Pro

Groundworks

18931 59TH AVE NE
4.68(
25
)
Approved Pro
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
22 local quotes requested

Since 1987, Groundworks has specialized in helping homeowners with their foundation repair, waterproofing, and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across North-West Washington. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your basement, foundation, or crawl space. GROUN**76305

"Current employee of the Arlington Location posted this on her social media account."

John S on September 2025

Since 1987, Groundworks has specialized in helping homeowners with their foundation repair, waterproofing, and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across North-West Washington. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your basement, foundation, or crawl space. GROUN**76305

"Current employee of the Arlington Location posted this on her social media account."

John S on September 2025


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
26 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! GROUN**76305

"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! GROUN**76305

"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


NWPM Construction LLC

32214 116th Ave SE
4.71(
14
)
Approved Pro

NWPM Construction LLC

32214 116th Ave SE
4.71(
14
)
Approved Pro
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
82 local quotes requested

We offer discounts to Microsoft employees & Seniors! We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Call or click to schedule a free estimate today!

"Incredible company! I have used many times, and will continue to in the future. Highly recommend if you want a team that truly cares about the quality of their work and customer satisfaction!"

Amanda C on August 2025

We offer discounts to Microsoft employees & Seniors! We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Call or click to schedule a free estimate today!

"Incredible company! I have used many times, and will continue to in the future. Highly recommend if you want a team that truly cares about the quality of their work and customer satisfaction!"

Amanda C on August 2025


Avatar for Andy Construction LLC

Andy Construction LLC

2333 NE 94th St
4.85(
27
)
Approved Pro

Andy Construction LLC

2333 NE 94th St
4.85(
27
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
21 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


Avatar for Dario's Renovation

Dario's Renovation

5.00(
2
)
Approved Pro

Dario's Renovation

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
57 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


Avatar for DesignWorks NW

DesignWorks NW

6523 California Ave SW
4.67(
12
)
Approved Pro

DesignWorks NW

6523 California Ave SW
4.67(
12
)
Approved Pro
Customers say: Quality work
25 years of experience
Free onsite estimate

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


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
38 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


Avatar for Attic Doctor LLC

Attic Doctor LLC

10333 NE 1st St #154
5.00(
15
)
Approved Pro

Attic Doctor LLC

10333 NE 1st St #154
5.00(
15
)
Approved Pro
Super Service Award
Customers say: Quick response
143 local quotes requested
2 years of experience

Welcome to your one-stop shop for insulation, rodents and mold! Attic Doctor is a local, licensed contractor providing eco-friendly solutions to all of your attic and crawl space problems. Scratching sounds coming from the attic, when you’re trying to sleep? Mold destroying your roof and air quality? Losing your mind over heating and cooling costs? Call the Attic Doctor!

"Rodent exclusion work - they keep coming back until it’s done! No other rodent exclusion outfits I had out offered any kind of guarantee. After 6 months I needed them again and they were here in a flash! Amazing customer service. "

Anja C on July 2025

Welcome to your one-stop shop for insulation, rodents and mold! Attic Doctor is a local, licensed contractor providing eco-friendly solutions to all of your attic and crawl space problems. Scratching sounds coming from the attic, when you’re trying to sleep? Mold destroying your roof and air quality? Losing your mind over heating and cooling costs? Call the Attic Doctor!

"Rodent exclusion work - they keep coming back until it’s done! No other rodent exclusion outfits I had out offered any kind of guarantee. After 6 months I needed them again and they were here in a flash! Amazing customer service. "

Anja C on July 2025


CM Development and Construction, LLC

2727 Western Avenue, Suite 3A
New on AngiNew on Angi
Approved Pro

CM Development and Construction, LLC

2727 Western Avenue, Suite 3A
New on AngiNew on Angi
Approved Pro
141 local quotes requested
25 years of experience

Based in the heart of Seattle, we are a trusted masonry repair business dedicated to preserving the structural integrity and aesthetic beauty of your buildings. We specialize in a comprehensive range of services, including brick and stone repointing, facade restoration, lintel replacement, and waterproofing. Our team of skilled and experienced masons utilizes traditional techniques combined with modern materials to deliver lasting results that withstand the city's unique environmental challenges. We understand the specific needs of Manhattan's diverse architecture, from historic brownstones to modern high-rises, and we are committed to providing meticulous craftsmanship, transparent communication, and exceptional customer service on every project. Whether it's a small repair or a large-scale restoration, we are the reliable choice for ensuring your building remains safe, sound, and visually stunning.

Based in the heart of Seattle, we are a trusted masonry repair business dedicated to preserving the structural integrity and aesthetic beauty of your buildings. We specialize in a comprehensive range of services, including brick and stone repointing, facade restoration, lintel replacement, and waterproofing. Our team of skilled and experienced masons utilizes traditional techniques combined with modern materials to deliver lasting results that withstand the city's unique environmental challenges. We understand the specific needs of Manhattan's diverse architecture, from historic brownstones to modern high-rises, and we are committed to providing meticulous craftsmanship, transparent communication, and exceptional customer service on every project. Whether it's a small repair or a large-scale restoration, we are the reliable choice for ensuring your building remains safe, sound, and visually stunning.


Avatar for Unique Skagit Interiors

Unique Skagit Interiors

PO Box 24
4.95(
22
)
Approved Pro

Unique Skagit Interiors

PO Box 24
4.95(
22
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
26 local quotes requested

We take great pride 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. order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Leo and his team did a great job on our new deck. Very professional and accessible (always responded immediately to calls and emails). Used creative ideas and worked with my ideas also. Much appreciated. Would definitely hire them again for any future projects."

Shelly S on July 2025

We take great pride 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. order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Leo and his team did a great job on our new deck. Very professional and accessible (always responded immediately to calls and emails). Used creative ideas and worked with my ideas also. Much appreciated. Would definitely hire them again for any future projects."

Shelly S on July 2025

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Basement Leak Repair questions, answered by experts

The easiest methods for waterproofing your basement include installing a gutter system to direct excess runoff away from your foundation and grading the soil away from your home to pull water away from the concrete. In some cases, these methods alone can be enough to eliminate water intrusion and moisture problems in your basement. If you have excessive rainfall in your area, though, you might need to employ more complicated solutions, like installing a French drain and a dehumidification system inside.

In many cases, yes, a damp basement can be bad for your health. Not only can damp air affect your lungs, but it can promote mold growth and pest infestation. Mold spores can be dangerous to breathe in, as can waste particles from insects and rodents attracted to the moisture. Damp, moldy air can also move up into your living area. As such, it’s crucial to fix any basement moisture problems as soon as they crop up.

Yes, many contractors offer warranties for their work. Confirm terms before starting the project.

The most challenging part of finishing a basement is addressing moisture control. Basement waterproofing is an essential task that requires a professional’s skills and knowledge. If you don’t properly waterproof your finished basement, it’ll be vulnerable to dampness, water damage, and mold growth. Ensuring proper insulation and ventilation to combat these issues while meeting building codes adds complexity to your remodeling project.

Pooling or standing water in your basement should be cause for alarm and action. This indicates that there is a leak or a drainage issue, and until you repair the root of the problem, the situation will only happen again or grow in severity. It’s important to deal with water damage as soon as it occurs.

The Langley, WA homeowners’ guide to basement leak repair services

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

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