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Find Foundation, basement or crawlspace waterproofing / encapsulation pros in Renton

Avatar for BUILDING PERFORMANCE PROS LLC

BUILDING PERFORMANCE PROS LLC

3.00(
2
)
Approved Pro

BUILDING PERFORMANCE PROS LLC

3.00(
2
)
Approved Pro
1 years of experience
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!

"No terrible "

Clark G on February 2026

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!

"No terrible "

Clark G on February 2026


Avatar for Insulation Co., LLC - Removal & Clean Outs

Insulation Co., LLC - Removal & Clean Outs

4.96(
192
)
Approved Pro

Insulation Co., LLC - Removal & Clean Outs

4.96(
192
)
Approved Pro
Customers say: True professional
17 years of experience
Free onsite estimate

Insulation Co. LLC has been Western Washington’s trusted attic and crawl space specialist since 2008. Based in Seattle, we provide far more than insulation—we offer complete attic and crawl space restoration. Our services include insulation removal and replacement, full cleanouts, mold remediation, duct insulation and sealing, rodent exclusion and proofing, vapor barrier installation, crawl space door upgrades, and comprehensive air sealing. For moisture issues, we also install sump pumps and French drains. We even offer specialized crawl space services for manufactured homes. Whatever your home needs beneath or above, our team ensures a clean, healthy, energy-efficient space built to last.

"Team was great! Came in, did a great job, and even did a couple of other minor things that I requested while they were there. I recommend them highly! Very helpful and professional start to finish!"

shane l on February 2026

Insulation Co. LLC has been Western Washington’s trusted attic and crawl space specialist since 2008. Based in Seattle, we provide far more than insulation—we offer complete attic and crawl space restoration. Our services include insulation removal and replacement, full cleanouts, mold remediation, duct insulation and sealing, rodent exclusion and proofing, vapor barrier installation, crawl space door upgrades, and comprehensive air sealing. For moisture issues, we also install sump pumps and French drains. We even offer specialized crawl space services for manufactured homes. Whatever your home needs beneath or above, our team ensures a clean, healthy, energy-efficient space built to last.

"Team was great! Came in, did a great job, and even did a couple of other minor things that I requested while they were there. I recommend them highly! Very helpful and professional start to finish!"

shane l on February 2026


Avatar for P4 Construction, LLC

P4 Construction, LLC

5.00(
2
)
Approved Pro

P4 Construction, LLC

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

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer drainage services our job is to control and direct water away from your home or building.We have 13 years in the drainage field and specialize in,waterproofing foundation walls,basement drainage,yard drains,french drains,crawlspace interior drain systems,sump pump installations and replacement,new pvc downspout drain pipe installations,clean and or repair downspout pipes.You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with,we work with the best materials out there.We take pride on what we do.Our hard work speaks for itself.We look forward on helping you with your drainage projects.

"We hired them to install a 40 foot french drain. Eric was very knowledgeable and professional, not to mention a very nice person and good listener. He was punctual and he and his crew were extemely hard workers. The job functions as promised, looks great and they were very conscientious about how they left the work area neat and clean. I wish I could hire them for other projects."

Bill G on June 2024

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer drainage services our job is to control and direct water away from your home or building.We have 13 years in the drainage field and specialize in,waterproofing foundation walls,basement drainage,yard drains,french drains,crawlspace interior drain systems,sump pump installations and replacement,new pvc downspout drain pipe installations,clean and or repair downspout pipes.You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with,we work with the best materials out there.We take pride on what we do.Our hard work speaks for itself.We look forward on helping you with your drainage projects.

"We hired them to install a 40 foot french drain. Eric was very knowledgeable and professional, not to mention a very nice person and good listener. He was punctual and he and his crew were extemely hard workers. The job functions as promised, looks great and they were very conscientious about how they left the work area neat and clean. I wish I could hire them for other projects."

Bill G on June 2024


Avatar for TerraFirma Foundation Systems

TerraFirma Foundation Systems

4.51(
67
)
Approved Pro

TerraFirma Foundation Systems

4.51(
67
)
Approved Pro
Customers say: Quick response
69 local quotes requested
21 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.

"Had a sump pump installed. Haven’t had a repeat of the problem."

Edward H on December 2025

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.

"Had a sump pump installed. Haven’t had a repeat of the problem."

Edward H on December 2025


Avatar for Groundworks

Groundworks

4.61(
247
)
Approved Pro

Groundworks

4.61(
247
)
Approved Pro
Customers say: Quick response
98 local quotes requested
31 years of experience

Groundworks is the North America’s leading and fastest-growing foundation repair and water management solutions provider. Groundworks is a vertically integrated company with its own manufacturing operations and a world-class software solution, allowing us to serve our customers more effectively. From the first phone call to the annual maintenance offered, our customers have peace of mind knowing we’re there with one mission – to repair, protect and improve their home.

"Let me start off by saying Im super impressed with the install crew Malik, Andy, and Brian. This crew is very professional, personable, and works REALLY hard! Please be sure to convey this to whoever is in their up-line as they each deserve kudos for being great employees and representatives of Groundworks. I was also VERY pleased with our estimator Zaire, he spent a lot of time planning and adjusting to our needs/wants for this project. Very communicative. I highly recommend Groundwork?s! "

Brian G on February 2026

Groundworks is the North America’s leading and fastest-growing foundation repair and water management solutions provider. Groundworks is a vertically integrated company with its own manufacturing operations and a world-class software solution, allowing us to serve our customers more effectively. From the first phone call to the annual maintenance offered, our customers have peace of mind knowing we’re there with one mission – to repair, protect and improve their home.

"Let me start off by saying Im super impressed with the install crew Malik, Andy, and Brian. This crew is very professional, personable, and works REALLY hard! Please be sure to convey this to whoever is in their up-line as they each deserve kudos for being great employees and representatives of Groundworks. I was also VERY pleased with our estimator Zaire, he spent a lot of time planning and adjusting to our needs/wants for this project. Very communicative. I highly recommend Groundwork?s! "

Brian G on February 2026


Avatar for John's Waterproofing Co.

John's Waterproofing Co.

4.86(
52
)
Approved Pro

John's Waterproofing Co.

4.86(
52
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
55 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!

"The project team did great work and was always available to answer any of my questions."

DALE R on February 2026

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!

"The project team did great work and was always available to answer any of my questions."

DALE R on February 2026


Avatar for Rain Pros Inc

Rain Pros Inc

4.87(
391
)
Approved Pro

Rain Pros Inc

4.87(
391
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
20 years of experience

Rain Pros is Puget Sounds premier full-service drainage company, with a reputation of unmatched customer service and exceptional quality. Our professionals have years of experience in drainage 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 drainage system please email our general manager (Joel@RainPros.com). For drainage repair and inspection requests please contact our service coordinator at (253) 678-7111, additionally you can email- customerservice@rainpros.com to immediately cue for with our service department.

"Rain Pros did a Drainage Project of my Tacoma Property. They did excellent work. I am very happy with their professional services and I highly recommend Rain Pros to people who need Drainage Services. Athena "

Athena H on February 2026

Rain Pros is Puget Sounds premier full-service drainage company, with a reputation of unmatched customer service and exceptional quality. Our professionals have years of experience in drainage 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 drainage system please email our general manager (Joel@RainPros.com). For drainage repair and inspection requests please contact our service coordinator at (253) 678-7111, additionally you can email- customerservice@rainpros.com to immediately cue for with our service department.

"Rain Pros did a Drainage Project of my Tacoma Property. They did excellent work. I am very happy with their professional services and I highly recommend Rain Pros to people who need Drainage Services. Athena "

Athena H on February 2026


Taylor Masonry & Construction LLC

5.00(
6
)
Approved Pro

Taylor Masonry & Construction LLC

5.00(
6
)
Approved Pro
26 years of experience
Free onsite estimate

Taylor Masonry and Construction has been proudly serving the community since 1999. Fully licensed, insured, and bonded, we have built a strong reputation as one of the area?s leading professionals in foundation waterproofing, chimney repairs, and all aspects of masonry work. With decades of hands-on experience, our team is committed to delivering durable craftsmanship, reliable solutions, and honest service on every project. From protecting your foundation to restoring and enhancing your masonry, we take pride in work that stands the test of time

"If you need your chimney repaired or masonry work hire this company they are amazing from start to finish! Gave us a few different options on our chimney which was great and repaired to a high standard and gave us a warranty, really happy with everything."

kathleen h on February 2026

Taylor Masonry and Construction has been proudly serving the community since 1999. Fully licensed, insured, and bonded, we have built a strong reputation as one of the area?s leading professionals in foundation waterproofing, chimney repairs, and all aspects of masonry work. With decades of hands-on experience, our team is committed to delivering durable craftsmanship, reliable solutions, and honest service on every project. From protecting your foundation to restoring and enhancing your masonry, we take pride in work that stands the test of time

"If you need your chimney repaired or masonry work hire this company they are amazing from start to finish! Gave us a few different options on our chimney which was great and repaired to a high standard and gave us a warranty, really happy with everything."

kathleen h on February 2026


Avatar for East Bay Construction

East Bay Construction

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

East Bay Construction

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
2 years of experience
Free onsite estimate

We are a locally owned and operated business committed to providing exceptional service, quality workmanship, and honest communication on every project we undertake. Our experienced team takes pride in delivering customized solutions tailored specifically to meet each client's unique needs. We value integrity and reliability, ensuring every job is completed to your satisfaction. Our goal is to build lasting relationships with our customers through consistency, professionalism, and outstanding results. Let us show you why homeowners continually choose us as their trusted service provider.

We are a locally owned and operated business committed to providing exceptional service, quality workmanship, and honest communication on every project we undertake. Our experienced team takes pride in delivering customized solutions tailored specifically to meet each client's unique needs. We value integrity and reliability, ensuring every job is completed to your satisfaction. Our goal is to build lasting relationships with our customers through consistency, professionalism, and outstanding results. Let us show you why homeowners continually choose us as their trusted service provider.


Avatar for Andy Construction LLC

Andy Construction LLC

5.00(
20
)
Approved Pro

Andy Construction LLC

5.00(
20
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 years of experience

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

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FAQs for foundation, basement or crawlspace waterproofing / encapsulation projects in Renton, WA

The most affordable way to waterproof your basement is with interior methods like waterproof paint, costing between $1 and $8 per square foot, or silicate concrete sealers priced at $4 to $6 per square foot. However, these solutions are only suitable for certain issues. If your basement moisture is due to more serious problems like a cracked foundation, you'll need more extensive (and costly) repairs.

Absolutely! Waterproofing your basement is a smart investment that can increase your home's value. By keeping your basement dry and free of moisture problems, you protect your home's structural integrity and make it more appealing to potential buyers. Plus, taking proactive measures now can prevent costly water damage repairs down the line.

The time required to waterproof a basement depends on the selected method. Some approaches to interior waterproofing, like paint or sealant, can be completed within a day. Installing new drains or weeping tiles will need at least two to three days of labor. Any forms of exterior waterproofing that require you to excavate land will require an additional three days of work to prepare the ground.

Yes, basement waterproofing can significantly increase your home's value. A dry, leak-free basement is a strong selling point for potential buyers, enhancing your property's desirability and market price. Investing in professional waterproofing not only protects your home's structural integrity but also ensures a healthier living environment by preventing mold and mildew growth.

Waterproofing both the interior and exterior of your basement offers the best protection against moisture. Exterior waterproofing stops water from penetrating your foundation, while interior methods manage any moisture that does enter. If you must choose one, exterior waterproofing is generally more effective, as it prevents water from reaching your home's interior in the first place.

The Renton, WA homeowners’ guide to foundation, basement or crawlspace waterproofing / encapsulations

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