Get matched with top basement waterproofing pros in Sequim, WA
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Basement waterproofing pros in Sequim
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
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 (Joel@RainPros.com). For drainge 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.
"I was stressed to the max thinking the home I just purchased had a foundation issue after being told so many things from different companies I turned to Angi’s list and I had totally forgot about my appointment with Rainpros Joel ended up doing the inspection and literally saving me from a stress stroke. He was patient and explained everything as clear as he could over the phone. I have a busy life so it’s not easy to work with me and Joel did just that. Even through a misunderstanding he was still very conscientious and quoted us a great price for the work done and gave me back some peace knowing the foundation wasn’t the problem."
Crystal M on January 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 (Joel@RainPros.com). For drainge 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.
"I was stressed to the max thinking the home I just purchased had a foundation issue after being told so many things from different companies I turned to Angi’s list and I had totally forgot about my appointment with Rainpros Joel ended up doing the inspection and literally saving me from a stress stroke. He was patient and explained everything as clear as he could over the phone. I have a busy life so it’s not easy to work with me and Joel did just that. Even through a misunderstanding he was still very conscientious and quoted us a great price for the work done and gave me back some peace knowing the foundation wasn’t the problem."
Crystal M on January 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!
"Groundworks were contracted to encapsulate the crawl space, with a dehumidifier, intellijacks & sump pump. The inspector showed us pictures & videos of what the work would look like on completion, & explained how each solution would be installed. They tried to charge me more for vent covers until I showed them the contract covering this part. The foreman told me there was a reset button for the sump pump to be installed on an exterior wall, but they did not install it, instead said they would put in a service order. I haven’t heard anything about this issue yet. When they installed the moister barrier, they excluded the cement pads I was told it cost extra to have them covered. When I signed the contract, I was never told there would be extra charges for vent covers or cement pads to be covered. The contract I signed covered a complete encapsulation, but this is not what I got. This is a bait & switch. I would not recommend Groundworks."
Fran F on March 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!
"Groundworks were contracted to encapsulate the crawl space, with a dehumidifier, intellijacks & sump pump. The inspector showed us pictures & videos of what the work would look like on completion, & explained how each solution would be installed. They tried to charge me more for vent covers until I showed them the contract covering this part. The foreman told me there was a reset button for the sump pump to be installed on an exterior wall, but they did not install it, instead said they would put in a service order. I haven’t heard anything about this issue yet. When they installed the moister barrier, they excluded the cement pads I was told it cost extra to have them covered. When I signed the contract, I was never told there would be extra charges for vent covers or cement pads to be covered. The contract I signed covered a complete encapsulation, but this is not what I got. This is a bait & switch. I would not recommend Groundworks."
Fran F on March 2025
NIRVANA BUILDERS LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals
NIRVANA BUILDERS LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals
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
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.
"Was a great experience, professional and fast."
David F on April 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.
"Was a great experience, professional and fast."
David F on April 2025
We specialize in Land clearing excavation logging dirt work septic repairs construction and more!
We specialize in Land clearing excavation logging dirt work septic repairs construction and more!
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.
Advanta Construction is an expanding company servicing the greater New York area. We are experienced in both commercial and residential projects. Our organization consists of our coordinated, client oriented office team and our crew of skilled craftsmen well practiced in many trades; including carpentry, plumbing, waterproofing, painting, and much more. Such a vast team allows us to provide for all of your construction needs.
Advanta Construction is an expanding company servicing the greater New York area. We are experienced in both commercial and residential projects. Our organization consists of our coordinated, client oriented office team and our crew of skilled craftsmen well practiced in many trades; including carpentry, plumbing, waterproofing, painting, and much more. Such a vast team allows us to provide for all of your construction needs.
tony santini, Larry santini. jj santini. Carlos santini four brothers with over 25 plus years of expertise. Our goal then and now is to provide quality on time projects.We let our quality work and commitment to customer satisfaction be our slogan.
tony santini, Larry santini. jj santini. Carlos santini four brothers with over 25 plus years of expertise. Our goal then and now is to provide quality on time projects.We let our quality work and commitment to customer satisfaction be our slogan.
Basement waterproofing services FAQs
Due to the nature of basements, some level of waterproofing is necessary to prevent water from seeping in and causing damage. Some definitive signs that your basement needs waterproofing measures or needs existing waterproofing measures need to be updated include:
Water in your basement, including damp walls or puddles on the floor
Mold spots in your basement
Musty smells or odors
Warped doors or walls
Cracks in walls
Insect issues, such as cockroaches and termites
You can DIY basement waterproofing in some ways to help save on the overall costs. If your basement isn’t experiencing a lot of water but is noticeably humid, you can try running a dehumidifier that will pull the excess water out of the air. If you notice water leaking due to outdoor drainage issues, you can add downspout extensions to keep rainwater away from your home.
However, if the problem is more severe and requires a more extensive solution, it’s best to call a basement waterproofing professional to assess the treatment you need and install waterproofing safeguards properly. Since keeping water out of your basement is important, ensuring this job is done correctly the first time is best.
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.
Several factors dictate if you should waterproof the interior or exterior of your basement. Waterproofing the exterior of your home is a great option if you use your basement for storage, as it provides the most protection from water and water damage. If you prefer work done outside of your home versus inside, exterior waterproofing is best for you. However, interior waterproofing is often less expensive since the area is easier to reach and requires less labor.
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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