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Products & Services
Basement Waterproofing
Basement Dehumidifiers
Basement Sealing
Basement Seepage Solutions
Basement Wall Repair
Flood Vents
Drain Tile Installation
Dry Basement Systems
Exterior Waterproofing
Flooded Basement Repair
Foundation Waterproofing
French Drain Installation
Interior Waterproofing
Leaky Basement Repair
Sump Pump Drainage
Sump Pump Installation
Sump Pump Repair
Sump Pump Battery Backup
Wet Basement Solutions
Basement Insulation
Basement Crack Repair
Basement Wall Cracks


Crawl Space Repair
Crawl Space Access Doors
Crawl Space Dehumidifier
Crawl Space Drainage
Crawl Space Encapsulation
Crawl Space Insulation
Crawl Space Liner
Crawl Space Moisture Barrier
Crawl Space Moisture Control
Crawl Space Mold Prevention
Crawl Space Sealing
Crawl Space Sump Pump
Crawl Space Vapor Barrier
Crawl Space Ventilation
Crawl Space Waterproofing
Crawl Space Excavation


Basement Finishing
Basement Finishing Ideas
Basement Finishing Plans
Basement Finishing Systems
Basement Flooring Systems
Basement Wall Finishing


Basement Remodeling
Basement Remodeling Plans
Basement Renovations
Basement Refinishing
Basement Subfloor
Basement Wall Panels
Thermaldry Basement Flooring


Basement Design
Basement Ideas
Basement Remodeling Ideas
Basement Ceiling Ideas
Basement Finishing Ideas
Basement Floor Plans
Basement Flooring Ideas


Seismic/Earthquake Retrofitting
Company Awards
Innovation and Excellence Award
We just got this email! We have now reviewed all of the information on the companies and individuals taking part... [Read more]
2019 Build Awards- Outstanding Service in Waterproofing
We are delighted to announce that John's Waterproofing Company are recipients within the 2019 BUILD Awards! Build Magazine's first program... [Read more]
The 2017 Impact Award
We received the Impact award this year (2017) at the annual basement system dealer’s convention. This award means so much... [Read more]
More Awards

John's Waterproofing serving Portland, OR

Happy Customers Surrounding Portland, OR
Work Requests

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Basement Waterproofing & Crawl Space Repair in Portland, Oregon

Do you have water in the basement? Is your crawl space damp? This leads to mold, rot, musty odors and structural issues. It also leads to a reoccurring headache for you. Luckily, our trained experts are available to permanently fix the problem.

We will properly install a hidden drainage system in your Portland basement and completely encapsulate your crawl space with CleanSpace vapor barrier. We are here to solve the problem for you.

Why Choose Us?
  • Lifetime Warranty on all Perimeter Waterproofing Systems
  • 25-year Warranty on Crawl Space Encapsulation Systems
  • Sump Pump Installation, Repair & Replacement
  • Basement, Crawl Space & Spray Foam Insulation
  • Basement Egress Windows
  • Flood Vents & Drainage Systems
  • Crawl Space & Basement Dehumidifiers
  • Crawl Space Excavation
  • Hundreds of Satisfied Customers

Basement Finishing & Remodeling in Portland, OR

Waterproofing your basement prevents outside water from coming in but what if a pipe bursts or the water heater leaks inside the home. A newly finished basement done by your average contractor will mold and rot if there is an internal leak. You'll have to tear out your new basement! We fix this issue.

Our Products Include :
  • Waterproof, washable, insulated walls           
  • Mold-Resistant, No-Sag suspended ceiling
  • Modular carpet, tile & faux wood flooring

  • Energy-efficient, double-paned basement windows
  • Attractive Sunhouse basement window wells
  • French, bifold, louvre & six-paneled steel doors
Unlike the average Portland contractor we use completely inorganic, waterproof materials. Even if the basement floods your walls and floors will not be damaged by the water. These waterproof products are patented and are built to create an attractive finished basement that lasts a lifetime.

Earthquake & Seismic Retrofitting in Portland

In Portland, earthquake risk is a reality. That is why it is critical to have your home properly reinforced and prepared for any seismic event. At John's Waterproofing, we provide seismic retrofitting services on your home or business using metal connectors and other reinforcing methods and materials. The goal is to counteract racking, sliding, and overturning, the 3 major earthquake-induced forces that can damage or ruin your structure.

For a FREE no-obligation written estimate in Portland, OR, please click below and John's Waterproofing will contact you shortly.

Work Requests From Portland, OR
Vicinity of in Portland
Leaking in basement bathroom.
Vicinity of in Portland
Crawl space encapsulation
Vicinity of N Princeton St in Portland
We have mostly basement with partial drafty/ill maintained crawl space areas. We want to seal up the crawlspaces and potentially use as storage areas.
Vicinity of SE CYPRESS AVE in Portland
Existing french drain system was partly disrupted during some recent work along the foundation. Now when we have steady rains for multiple days we get water in the basement.
Vicinity of in Portland
Hi, we are exploring ways to make our basement more useable for the family. Our walls and floor are not actively leaking, but moisture comes through as evident by the white powder on the walls. We have lived in the house a year and a half, and the previous owners did some finishing work at some point, I just want to make sure it was done right and move forward in the right direction. Reading your site, I feel like we may need some exterior intervention measures, and definitely the sealing on the interior walls. and possibly flooring tiles - and would like a quote. We will be doing this work in the next 6 months. Thank you.
Vicinity of NW Viola Street in Portland
Noticed water and damaged vapor barrier in my crawlspace. Need analysis and estimate to fix the issues properly.
Vicinity of in Portland
Hello! My crawl space was recently cleaned and I just need a new vapor barrier installed. I'd love a ballpark estimate to start. Thanks!
Vicinity of SE Tibbetts ST in Portland
Weakness in laundry and kitchen floor. Dry rot under the south end of the bathtub.
Vicinity of NE Stanton St in Portland
Would like to insulate crawl space.
Vicinity of NW Burkhart Dr in Portland
Just bought a home and during inspection a pool of water was found in crawl space. It wasn't a large puddle, but enough to cause concern. Additionally, I started to move stuff in today and found a large amount of what appears to be mouse droppings between plastic and insulation in ceiling of crawl space.
Vicinity of N Allegheny Ave in Portland
This is for a rental property that we own but the tenants are noticing a moldy smell coming from a vent and sink area and the same smell is there when they open the crawl space.
Vicinity of NW SKYLINE CREST RD in Portland
Ground water in the basement. Would like an estimate for solution/waterproofing.
Vicinity of in Portland
We have an unfinished basement that we are hoping to waterproof, and would like to get an estimate on doing so. Thanks!
Vicinity of SW Maplecrest Ct in Portland
Would like an estimate on crawl space encapsulation
Vicinity of NW Tualatin Ave in Portland
Replace all vapor barrier in crawl space. Approx 2,500 - 3,000sqft
Vicinity of SE Flavel St in Portland
I am interested in moving forward with a basement remodel project. I have, over the course of the last 15 years addressed most of the water intrusion problems. Regrading exterior grades, french drains and slab jacking my driveway have taken care of most all water problems. However, I would like to have a professional do a moisture vapor test and provide a recommendation for flooring treatment before we cover up the floor with carpet, tile or other flooring treatment. Thanks for considering this work.
Vicinity of in Portland
There are signs of water intrusion at our rental house.
Vicinity of N. Lombard Ave in Portland
Would like to set up a time for someone to check out our leaky basement and offer an estimate.
Vicinity of N Hunt Street in Portland
Hello - we recently purchased a home and the inspector suggested we get a vapor barrier installed in a crawl space in our basement. I have the inspection and can send pictures if that helps. Thank you!
Vicinity of in Portland
Looking for someone to look at a crawl space in my home and an estimate if there is work that is needed.
Serving the following Portland, OR zip codes
97201, 97202, 97203, 97204, 97205, 97206, 97207, 97208, 97209, 97210, 97211, 97212, 97213, 97214, 97215, 97216, 97217, 97218, 97219, 97220, 97221, 97222, 97223, 97224, 97225, 97227, 97228, 97229, 97230, 97231, 97232, 97233, 97236, 97238, 97239, 97240, 97242, 97256, 97258, 97266, 97267, 97268, 97269, 97280, 97281, 97282, 97283, 97286, 97290, 97291, 97292, 97293, 97294, 97296, 97298
Service Area
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