Top-rated basement leak repair pros.

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

Enter your ZIP and get matched with up to 5 pros

Need a pro for your basement leak repair project in Cosmopolis, WA?

Select your specific project to find the pro for you.

Find Basement leak repair pros in Cosmopolis

Avatar for Sentri Homes

Sentri Homes

New on AngiNew on Angi
Approved Pro

Sentri Homes

New on AngiNew on Angi
Approved Pro
298 local quotes requested
2 years of experience

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.


Avatar for TerraFirma Foundation Systems

TerraFirma Foundation Systems

5.00(
10
)
Approved Pro

TerraFirma Foundation Systems

5.00(
10
)
Approved Pro
Customers say: Quick response
81 local quotes requested
20 years of experience

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


Avatar for Groundworks

Groundworks

4.56(
140
)
Approved Pro

Groundworks

4.56(
140
)
Approved Pro
Customers say: Quick response
43 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


Avatar for Opportunity Construction

Opportunity Construction

4.75(
16
)
Approved Pro

Opportunity Construction

4.75(
16
)
Approved Pro
Super Service Award
Customers say: Terrific value
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
99 local quotes requested

We are a general contractor that focuses on the customers needs since 2002. Our primary goal is find solutions that fit into the clients time frame and budget. We work on remodels, rental renovations, handy mans services for general maintenance and repairs, drainage and sewer solutions, decking. Emergency Service. Big or small projects welcome. Let us fulfill your desired needs.

"Opportunity Construction will always be my #1 company to go to for my fencing needs. Here's the reason why. First, from start to finish, Dean Currow was very knowledgeable about installation of fencing. He displayed great customer service, professionalism, attention to details, and was so easy to work with. He was prompt; arriving on time each day. Second, his team of workers were exceptional! They were the best; working hard...non stop, until the last steel panel was in place. Opportunity Construction made my dream come true. They are an A++++ company. Last, I couldn't be happier with the installation. The fence looks beautiful, and from all of the drive-bys, I am sure this company will be receiving a few more calls."

Patti B on June 2025

We are a general contractor that focuses on the customers needs since 2002. Our primary goal is find solutions that fit into the clients time frame and budget. We work on remodels, rental renovations, handy mans services for general maintenance and repairs, drainage and sewer solutions, decking. Emergency Service. Big or small projects welcome. Let us fulfill your desired needs.

"Opportunity Construction will always be my #1 company to go to for my fencing needs. Here's the reason why. First, from start to finish, Dean Currow was very knowledgeable about installation of fencing. He displayed great customer service, professionalism, attention to details, and was so easy to work with. He was prompt; arriving on time each day. Second, his team of workers were exceptional! They were the best; working hard...non stop, until the last steel panel was in place. Opportunity Construction made my dream come true. They are an A++++ company. Last, I couldn't be happier with the installation. The fence looks beautiful, and from all of the drive-bys, I am sure this company will be receiving a few more calls."

Patti B on June 2025


K & J CO.

No reviews yet

K & J CO.

No reviews yet
30 years of experience

K&J CONSTRUCTION : Your trusted ally for emergency repairs, replacements, and gutter solutions. We safeguard homes with expert care, ensuring durability and peace of mind. Any Size Jobs. We accept Ins. & other forms of payments.

K&J CONSTRUCTION : Your trusted ally for emergency repairs, replacements, and gutter solutions. We safeguard homes with expert care, ensuring durability and peace of mind. Any Size Jobs. We accept Ins. & other forms of payments.


Charli Anderson Construction LLC

No reviews yet

Charli Anderson Construction LLC

No reviews yet
7 years of experience

We specialize in building affordable homes through all phases of construction. From raw land development and foundations all the way to walking through the front door of your new home. We pride ourselves in offering affordable kitchen, bath remodels and renovations, room additions, decking, fencing or sheds for your existing home without compromising high quality workmanship.

We specialize in building affordable homes through all phases of construction. From raw land development and foundations all the way to walking through the front door of your new home. We pride ourselves in offering affordable kitchen, bath remodels and renovations, room additions, decking, fencing or sheds for your existing home without compromising high quality workmanship.


Albina General Remodeling

No reviews yet

Albina General Remodeling

No reviews yet
Emergency services offered

We have been in the construction business for over 20 years. If you can dream it we can make it happen for you. I promise that you will want to work with us instead of the other people because of just 1 thing and that would be our warranty. We don't give you the regular 1 year and so on. We are so confident and amazing at what we do that you can call 5 years down the road and we will come fix it.

We have been in the construction business for over 20 years. If you can dream it we can make it happen for you. I promise that you will want to work with us instead of the other people because of just 1 thing and that would be our warranty. We don't give you the regular 1 year and so on. We are so confident and amazing at what we do that you can call 5 years down the road and we will come fix it.


Avatar for Apple Roofing LLC

Apple Roofing LLC

No reviews yet

Apple Roofing LLC

No reviews yet
7 years of experience

Apple Roofing, located at 260 10th St, Astoria, OR 97103, is a trusted, licensed, and bonded general contractor with extensive experience serving both Washington and Oregon. We are dedicated to meeting your residential and commercial needs with quality solutions that homeowners and businesses rely on in communities like Seaside, South Bend, Long Beach, Raymond, Longview, Astoria, Warrenton, Gearhart, Cannon Beach, Ilwaco, Battle Ground, Vancouver, Portland, Cathlamet, Newport, Naselle, Lincoln City, Centralia, Hillsboro, Chehalis, Tillamook, and beyond. Our expertise includes roofing services such as new roofs, roof repairs, preventive maintenance, and 24-hour emergency repairs. We also offer exterior services, including windows, siding, entry doors, and decking. For interior and remodeling needs, we provide flooring, drywall, painting, remodels, and finish carpentry. Additionally, our construction capabilities cover new construction, tiny homes, pole barns, framing, concrete, sunrooms, and porches. With a focus on integrity and reliability, we promptly address issues such as leaks, worn shingles, and storm damage. Our commitment to excellence ensures clear communication, expert craftsmanship, and dependable service. Contact us at (360) 942-7199 for a free estimate today! 🌐 Visit our website: https://apple-roofing.com/

Apple Roofing, located at 260 10th St, Astoria, OR 97103, is a trusted, licensed, and bonded general contractor with extensive experience serving both Washington and Oregon. We are dedicated to meeting your residential and commercial needs with quality solutions that homeowners and businesses rely on in communities like Seaside, South Bend, Long Beach, Raymond, Longview, Astoria, Warrenton, Gearhart, Cannon Beach, Ilwaco, Battle Ground, Vancouver, Portland, Cathlamet, Newport, Naselle, Lincoln City, Centralia, Hillsboro, Chehalis, Tillamook, and beyond. Our expertise includes roofing services such as new roofs, roof repairs, preventive maintenance, and 24-hour emergency repairs. We also offer exterior services, including windows, siding, entry doors, and decking. For interior and remodeling needs, we provide flooring, drywall, painting, remodels, and finish carpentry. Additionally, our construction capabilities cover new construction, tiny homes, pole barns, framing, concrete, sunrooms, and porches. With a focus on integrity and reliability, we promptly address issues such as leaks, worn shingles, and storm damage. Our commitment to excellence ensures clear communication, expert craftsmanship, and dependable service. Contact us at (360) 942-7199 for a free estimate today! 🌐 Visit our website: https://apple-roofing.com/


"Great! Scott did a quality job and was very easy to work with. The best part was that he was very clear in his pricing, itemizing every invoice and reviewing it with us before every payment that was due."

Pam L on April 2018

Wiggins Construction is licensed, bonded, and insured in the State of Washington specializing in home additions, kitchen and bathroom remodels, poll barns, custom mill work, and portable sawmill.

"Great! Scott did a quality job and was very easy to work with. The best part was that he was very clear in his pricing, itemizing every invoice and reviewing it with us before every payment that was due."

Pam L on April 2018


Samy’s General Construction LLC

No reviews yet

Samy’s General Construction LLC

No reviews yet
18 years of experience

Samy's General Construction LLC in Aberdeen, WA, provides remodeling and exterior improvement services to residential and commercial customers throughout the area. From bathrooms and bedrooms to siding and sunrooms, we offer low-cost remodeling solutions that will make your home stand out! As a member in good standing with the Home Depot Redbeacon team, you can trust that we are pre-screened and background-checked professional contractors. Painting, Foundation Service, Basement Remodeling, Patios Remodel, Siding Contractor, Construction Service, Home Repair, Home Improvement, Residential Remodeler, Commercial Remodeler. Hoquiam WA;Central Park WA;Montesano WA;Ocean Shores WA;Elma WA

Samy's General Construction LLC in Aberdeen, WA, provides remodeling and exterior improvement services to residential and commercial customers throughout the area. From bathrooms and bedrooms to siding and sunrooms, we offer low-cost remodeling solutions that will make your home stand out! As a member in good standing with the Home Depot Redbeacon team, you can trust that we are pre-screened and background-checked professional contractors. Painting, Foundation Service, Basement Remodeling, Patios Remodel, Siding Contractor, Construction Service, Home Repair, Home Improvement, Residential Remodeler, Commercial Remodeler. Hoquiam WA;Central Park WA;Montesano WA;Ocean Shores WA;Elma WA

...
Showing 1-10 of 60
Basement Leak Repair questions, answered by experts

If you’ll be digging up your floor to get access to your pipes when putting in a sewer backflow preventer, this would also be a good time to take care of any other plumbing issues or renovations. For example, you could install additional pipes for a basement bathroom. Since the floor will be sealed over with concrete when you’re done, now’s a good time to take care of those bigger tasks.

There are several reasons why you may find water dripping through your ceiling. This leak could be the result of a plumbing issue or a damaged roof. It’s important to determine the source of the leak before it causes damage to your home and belongings. Taking steps to catch the water immediately will help with additional issues.

To determine if your basement walls are suitable for finishing, assess their structural integrity and moisture conditions. Look for any signs of damage, such as cracks, bowing, or excessive moisture. Ensure proper drainage and address any underlying issues before proceeding. 

Consult with a professional if you're uncertain about the structural stability or potential risks associated with finishing your basement walls.

The four most common types of stormwater drainage systems are ditches, catch basins, french drains, and slot drains. Ditches are open trenches designed to reroute stormwater off your property. Catch basins are connected to your local sewage system. French drains are great for keeping water out of your foundation, and slot drains are low-capacity drain systems that work best with light storms.

When a backflow valve fails, wastewater will flow back into your system, contaminating your drinking water. You’ll immediately notice backflow valve failure from a rotten smell and brown water coming from faucets. Get in contact with a septic pro or a plumber immediately if you suspect this has happened to you.

The Cosmopolis, 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.