Contact Us for a FREE Quote

  • Portland: 503-233-0825
  • Salem: 503-364-3978
  • Eugene: 541-349-9339
  • 1-800-810-5883
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Keeping Basements and Crawlspaces Dry and Healthy Since 1974

Basement Waterproofing

Clean, dry and healthy basement

Foundation Cracks

Repairing your cracked foundation to prevent further damage.


Make your crawlspace usable space with our services.

Oregon and Washington Basement Contractors

When your basement floods or your floor sags, who do you call? John's Waterproofing Co! We've been keeping basements and crawlspaces dry and healthy since 1974! In Oregon, we serve the Portland and Eugene areas. In Washington, we serve the Longview, Salem, and Eugene areas. Our family owned company offers everything from crawlspace repair to basement waterproofing. Banish mold, rot, and sagging floors forever by calling us at 1-800-810-5883.

What Our Clients Say

  • “I’ve been general contracting in Oregon for over 35 years and know how subcontractors work. The crew (Daniel, Juan, & Manuel) was exceptional. This crew was ‘spot on’—great work ethic, quality craftsmanship, and very personable. I personally thoroughly inspected the installation and it was flawless.”

    Peter, Oregon Home Repair Service

  • “The crew was excellent. They worked extremely hard. The work required digging trenches and laying pipe, and they did a great job covering the trenches and returning the ground to as close to the way it was prior to the work. The crew was courteous and friendly. They pointed out something in the original design that was not optimal and were able to correct it so that the system will work properly.”

    Chet of Eugene

    We Are Associated With

    2015 torch awards logo angies list logo BBB logo national association of home builders logo foundation flood vents logo