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    Average homeowner rating
  • Verified reviews icon11
    Verified basement leak repair services reviews

Find Basement leak repair pros in Sequim

Avatar for TerraFirma Foundation Systems

TerraFirma Foundation Systems

5.00(
8
)
Approved Pro

TerraFirma Foundation Systems

5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
91 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


Avatar for Groundworks

Groundworks

4.44(
162
)
Approved Pro

Groundworks

4.44(
162
)
Approved Pro
Customers say: Super punctual
38 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 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
48 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 Rain Pros Inc

Rain Pros Inc

4.76(
413
)
Approved Pro

Rain Pros Inc

4.76(
413
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
243 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.

"The work was done quickly and efficiently. Communication was very easy, clear, pleasant. The work was very good and I highly recommend them. The clean up wasn't thorough so they sent someone out immediately to finish the job."

Joan G on September 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.

"The work was done quickly and efficiently. Communication was very easy, clear, pleasant. The work was very good and I highly recommend them. The clean up wasn't thorough so they sent someone out immediately to finish the job."

Joan G on September 2025


"Nothing but happy with his work. He is very good at what he does. Punctual. Always stays on time on everything. Answers any questions."

Gary C on October 2022

Design-build, additions and remodels.

"Nothing but happy with his work. He is very good at what he does. Punctual. Always stays on time on everything. Answers any questions."

Gary C on October 2022


Trapp Contracting Services LLC

5.00(
3
)
Approved Pro

Trapp Contracting Services LLC

5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
9 years of experience

I take pride in my quality craftsmanship. We are owner operated, and believe in building long-term relationships with our clients by delivering honesty along with exceptional work. We pride our company on reliability, great communication, integrity, and customer service. We are experts in our trade and will do our best to keep you as educated as we can on your particular project. Give us a call today! We look forward to working with you!

"Vaughan Trapp did a wonderful job at our home. He was very professional, friendly and conscience and stayed within our budget. I would recommend him to anyone of my friends and family. GREAT JOB !! Thank you Vaughan!"

Art B on November 2023

I take pride in my quality craftsmanship. We are owner operated, and believe in building long-term relationships with our clients by delivering honesty along with exceptional work. We pride our company on reliability, great communication, integrity, and customer service. We are experts in our trade and will do our best to keep you as educated as we can on your particular project. Give us a call today! We look forward to working with you!

"Vaughan Trapp did a wonderful job at our home. He was very professional, friendly and conscience and stayed within our budget. I would recommend him to anyone of my friends and family. GREAT JOB !! Thank you Vaughan!"

Art B on November 2023


Avatar for Square 1 Venture Group, LLC

Square 1 Venture Group, LLC

4.97(
68
)
Approved Pro

Square 1 Venture Group, LLC

4.97(
68
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 years of experience

It doesn't have to be hard to maintain your property. You can turn to Square 1 Venture Group LLC for top-notch Crawl Space services or painting services. We'll take the time to understand your unique needs, then complete your job with expert skill and efficiency. Rely on us to update your residential l property in the Sequim, Port Townsend, Port Angeles areas. Clean outs, Insulation, French Drains, Structural Repairs, Foundation Repairs and more, I have over 35 years in the industry!

"I rate the job of cleaning our power washing our exterior house (great care to not damage the older painting, but cleaned the grime and dirt), and our walkways and driveways. Jon is a lovely man who was very prompt, estimate the time for the job perfectly, and left our old home and exterior in much better than I thought it might look. Don't have any hesitant to hire this company. The charge for the job was very reasonable. Thank you Jon, and I hope to see you again."

Dottie F on June 2023

It doesn't have to be hard to maintain your property. You can turn to Square 1 Venture Group LLC for top-notch Crawl Space services or painting services. We'll take the time to understand your unique needs, then complete your job with expert skill and efficiency. Rely on us to update your residential l property in the Sequim, Port Townsend, Port Angeles areas. Clean outs, Insulation, French Drains, Structural Repairs, Foundation Repairs and more, I have over 35 years in the industry!

"I rate the job of cleaning our power washing our exterior house (great care to not damage the older painting, but cleaned the grime and dirt), and our walkways and driveways. Jon is a lovely man who was very prompt, estimate the time for the job perfectly, and left our old home and exterior in much better than I thought it might look. Don't have any hesitant to hire this company. The charge for the job was very reasonable. Thank you Jon, and I hope to see you again."

Dottie F on June 2023


Unique Interior Design, Ltd.

4.92(
32
)
Approved Pro

Unique Interior Design, Ltd.

4.92(
32
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
22 local quotes requested

Welcome to Unique Interior Design, Ltd.! With over 40 years of experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.

"They were great, polite, helpful, and did a great job"

Janet R on September 2025

Welcome to Unique Interior Design, Ltd.! With over 40 years of experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.

"They were great, polite, helpful, and did a great job"

Janet R on September 2025


Avatar for BUILDING PERFORMANCE PROS LLC

BUILDING PERFORMANCE PROS LLC

5.00(
1
)
Approved Pro

BUILDING PERFORMANCE PROS LLC

5.00(
1
)
Approved Pro
46 local quotes requested
Free onsite estimate

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!

"The workers were on time. Very efficient. They did a blower door test and found the air leaks and insulated these areas. Blew installation above the garage, cleaned out the crawl space and put new installation there and basement. Found a water leak from my toilet,Thank goodness. Covered everything in the basement and swept and cleaned up after. I would recommend them!"

Nancy W on October 2025

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!

"The workers were on time. Very efficient. They did a blower door test and found the air leaks and insulated these areas. Blew installation above the garage, cleaned out the crawl space and put new installation there and basement. Found a water leak from my toilet,Thank goodness. Covered everything in the basement and swept and cleaned up after. I would recommend them!"

Nancy W on October 2025


Avatar for K & J CO.

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.

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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.

While both a channel drain and a French drain serve a similar purpose, a French drain is designed to prevent groundwater from causing flooding issues. This type of drain system goes underneath the soil and is completely surrounded by soil and rock. A channel drain, also called a trench drain, removes surface water before it ever enters the ground—hence the concrete and above-ground installation method.

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.

Flooded basement cleanup can take anywhere from a few days to several weeks, depending on the extent of water damage, the type of water involved, and the need for repairs or mold remediation. Severe cases with structural damage or extensive mold may require longer timelines. Quick action and professional help can speed up the process and reduce overall damage.

The Sequim, 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.