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John's Waterproofing

219 Airport Road
Silverton, OR 97381
12108 Mukilteo Speedway Suite A1 & A2
Mukilteo, WA 98275
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Mon-Fri 8:00am-5:00pm
In business since 1974
Services Offered
Basement Waterproofing Crawl Space Repair Basement Finishing

For more than four decades, John's Waterproofing has been Oregon and Washington's trusted contractor for basement waterproofing, crawl space repair, and more. This family-owned company has completed projects for high-profile properties such as the US Court House in Eugene, the President's Mansion at Linfield College, Columbia Knoll Retirement Center, Vancouver towers, and so much more. Not only does John's Waterproofing offer high-quality products and services, but the company also strives to serve customers with the highest degree of integrity. Let John's Waterproofing help you with your waterproofing and crawl space repair needs!

Hiring the authorized Basement Systems company in OR & WA means you'll benefit from:

  • Recognized & awarded service
  • Patented & awarded products
  • Savings of up to 50% over other methods
  • Written, transferable warranties

Services:

  • Basement Waterproofing to help prevent water from seeping into your basement.
  • Crawl Space Repair to maintain a dry, healthy crawl space.

Products Installed:

  • Sump Pumps, Drainage Systems, Basement Floor Tiles, Sub-Floor Matting, Rigid Wall Panels, Plastic Vapor Barriers, Radiant Heat Barriers, Insulated Wall Panels, Drywall Repair Systems, Water Heater Protection, Downspout Extensions, Self-Draining Dehumidifiers, Egress Windows, & Anti-Freeze Discharge Devices
  • EverLastâ„¢ Basement Wall Panels, ThermalDry® Basement Floor Tiles, Basement Drop Ceiling Tiles, Basement to Beautifulâ„¢ Wall Insulation, & EverLastâ„¢ Finished Wall Restoration
  • Service Area:

    Proudly serving Oregon, including Multnomah County, Washington County, Clackamas County, Lane County, Marion County, Deschutes County, Linn County, Yamhill County, Benton County, Polk County, and the surrounding areas. This includes the cities and towns of Portland, Salem, Eugene, Gresham, Hillsboro, Beaverton, Bend, Springfield, Corvallis, Albany, and cities nearby.

    John's Waterproofing also serves homeowners across Washington, including Mukilteo, Burlington, Bellingham, Everett, and surrounding areas.

    See before and after photos of wet basements, unfinished basements, and dirty crawl spaces, as well as more than 240 reviews and testimonials from customers below!

    Basement Waterproofing Crawl Space Repair Basement Finishing
    By Herb R. Corvallis, OR
    full starfull starfull starfull starfull star
    "Already recommended you to a friend in Portland, he will be..."
    By Jon O. Oregon City, OR
    full starfull starfull starfull starfull star
    "It was nice that someone actually answered the phone. They..."
    By Nicole R. Sandy, OR
    full starfull starfull starfull starfull star
    By John R. Colton, OR
    full starfull starfull starfull starfull star
    Elizabeth R. Albany, OR
    Mark A. Waldport, OR
    Full crawlspace encapsulation in Waldport, OR
    Cari K. Portland, OR
    I would be happy to give a recommendation.
    Full Crawl Space Transformation - Bingen, WA -
    Before
    Full Crawl Space Transformation - Bingen, WA
    After

    Full Crawl Space Transformation - Bingen, WA

    Water damage is every homeowners biggest nightmare. It can cause the wooden posts supporting your home to rot, increases exposure to mold growth, and structural damage can cost homeowners thousands. Good thing at John's Waterproofing our encapsulation process helps to keep your crawl spaces dry and healthy so that water can't cause any damage. The most important step in the encapsulation system is removing everything in the crawl space that has been water damaged. Usually that means we are taking out falling fiberglass insulation and the destroyed vapor barrier. Once everything is cleared out, we can install a proper drainage system. We dig a trench along the interior perimeter of the crawl space and lay a perforated pipe. This pipe can collect any water that tries to enter and offers it a safe passageway to a drain. For this encapsulation we installed a SmartDrain to collect the water from the pipe and send it away from the homes foundation. This system helps to keep the crawl space dry and avoid standing water. Afterwards, we install TerraBlock along the entire base of the space. This is a thick insulation foam that seals the earth from the house. It helps insulate and promotes energy efficiency because it regulates the environment. Next, a CleanSpace vapor barrier is installed on the base, up the foundation walls, and between the footing and wooden posts to isolate and protect. This vapor barrier differs from code regulated barriers because instead of only being 6 mil thin, it is 20 mil thick. It helps keep water from seeping over top and getting into the crawl space. A SaniDry dehumidifier is installed that filters the air by pulling out any particles or moisture. Lastly, Spray Foam is applied along the foundation walls to insulate and air seal the space. Once the encapsulation is completed, it has a clean look while also keeping it dry and healthy. 
    Debris Covered to Fully Encapsulated - Gresham, OR -
    Before
    Debris Covered to Fully Encapsulated - Gresham, OR
    After

    Debris Covered to Fully Encapsulated - Gresham, OR

    This homeowner had reached out to John's Waterproofing back in 2015 about getting their crawl space inspected. They noticed that during the rainy seasons water would seep inside the space and puddle. Because of this, the water would bring in dirt and debris from the outside and leave it behind on the vapor barrier as the water evaporated. We explained that a full encapsulation would prevent these water issues from continuing and they decided to wait and see if the issue resolved itself. Then, in 2025 the same homeowner reached back out saying that the water issues they were experiencing had only worsened and agreed to encapsulate the space. A full encapsulation is the process of sealing the crawl space off and controlling the environment to help prevent water intrusion, mold growth, and wood rot. It involves installing a drainage system with a TripleSafe sump pump, TerraBlock insulation foam, and a CleanSpace vapor barrier. Now, this beautiful crawl space is capable of keeping water out and the home healthy. 
    Full Encapsulation Transformation - Oregon City, OR -
    Before
    Full Encapsulation Transformation - Oregon City, OR
    After

    Full Encapsulation Transformation - Oregon City, OR

    Keeping your crawl space dry and healthy is extremely important in order to maintain a healthy home. If water gets into the crawl space, this can result in atmospheres for mold to grow, wood to rot, and poor air quality to waft into the living spaces. In order to protect your crawl space, John's Waterproofing recommends getting them fully encapsulated. An encapsulation begins by removing the damaged vapor barrier and clearing out any debris. Once everything is removed, then we install a drainage system. This involves installing a perforated pipe along the interior perimeter of the crawl space so that it can collect water from the ground or walls that try to seep through. It offers a safe passageway for that water to be sent to a SuperSump Plus sump pump. The sump pump is what works to take all that collected water and securely pushes it out of the crawl space and away from the homes foundation. Once there is control of water, then we can install TerraBlock. This is a thick insulation foam designed to seal the earth off from the home and regulate the environment. On top of the TerraBlock, a CleanSpace vapor barrier is installed. This vapor barrier differs from code-regulated ones because it is 20 mil thick and backed by a 25 year warranty against rips and tears. We also install CleanSpace up the foundation walls and between the footing and wooden posts to isolate and protect from water damage. Once everything is sealed with waterproof tape, then we can install a SaniDry Sedona dehumidifier. This helps to filter any moisture or particles out of the air, thus promoting better air quality in the living spaces. The final step would be applying Spray Foam to the foundation walls as a final air sealant and insulator. Now, this encapsulation will protect the home against water intrusion so that it can stay dry and healthy for its occupants.
    Spray Foam Insulation Saving Your Home - Portland, OR -
    Before
    Spray Foam Insulation Saving Your Home - Portland, OR
    After

    Spray Foam Insulation Saving Your Home - Portland, OR

    Spray Foam is a type of insulation that goes along the foundation walls in the crawl space. It is made of materials that expand and grow to fit into every crack and crevice along the walls. The purpose of Spray Foam is so the crawl space can be completely air sealed and it helps in insulating the home. By air sealing the crawl space, this actually helps the home become more energy efficient because it reduces heat loss, lowering energy bills. Overall, Spray Foam is an ideal insulation solution in the crawl space compared to the traditional fiberglass insulation in order to keep your home dry and healthy.
    The Golden Shovel Award for a Service Technician
    The Golden Shovel Award for a Service Technician
    2017 Top Cleanspace installer
    2017 Top Cleanspace installer
    Oregon's Number 1 Waterproofing and Drainage Contractor
    Oregon's Number 1 Waterproofing and Drainage Contractor
    Gordon Willmschen
    Gordon Willmschen
    Production Manager
    Delfino Gonzalez
    Delfino Gonzalez
    Foreman
    Chase Milner
    Chase Milner
    Service Manager
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