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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

Click the icons to see what our customers had to say.

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 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.
Vicinity of NW Skyline Blvd in Portland
My home has 2-3 inches each rainy season that builds up and I have to pump it out. Looking for a resolution
Vicinity of NE Hancock in Portland
We have water in our basement so we need to look at options.
Vicinity of SW Sunset Blvd in Portland
Basement leak around old sewer cleanout (decommissioned party sewer line) and seepage through multiple points in slab. Primarily looking for partial perimeter drain and sump pump quote.
Vicinity of NW McLain Way in Portland
Crawl space is is muddy has pools of water.
Vicinity of SW Cullen Blvd in Portland
Water seeping heavily through concrete in basement. Landscape draining issue. Also need partial crawlspace looked at.
Vicinity of in Portland
All debris to be removed, foundation vents to be unblocked, vapor barrier to be installed, foundation wall vents added.
Vicinity of SE Harney St in Portland
My crawl space is not insulated and only has a plastic liner on the floor and some ventilation. I wanted to know what steps I can take to both improve insulation and make sure that it doesn't get moldy.
Vicinity of NW Westover Rd in Portland
Our crawlspace has been much wetter than usual this winter, and you can see the water coming through at least one spot in the foundation. Also moisture shield needs replacing
Vicinity of SE Bybee Blvd in Portland
Small area in basement recently started getting wet after heavy rains. Saw significant moisture after last night's showers
Vicinity of N Montana Ave in Portland
We have a leak coming from the basement bedroom. We can see where the water is coming in from. It's coming in at the floor (near the baseboards). We are drying it out now and lifted the carpet up. Please help us! Thank you
Vicinity of SW Florida Street in Portland
I am looking to buy an old house and know that there is water in e old basement and would like to understand how much the waterproofing would be
Vicinity of in Portland
Hello! I recently went underneath the house and there was unfortunately a decent amount of standing water of unknown origin, which has prompted this email. It is kind of a mess under the house and we are looking for some help to get it fixed. We have some standing water that needs to be cleaned up and we also need a new vapor barrier and some old duct work that is no longer being used cleaned out. Regarding the duct work, some of the metal tubes are still connected and some are just lying around on the ground. Please let me know if you'd be willing to help! Thanks, Jordan
Vicinity of NE Everett ST in Portland
We have some water coming into our finished basement when it rains hard. It's coming from the driveway possibly through an egress window. We'd like to investigate getting it fixed and figure out how much it's going to cost. Thanks!
Vicinity of in Portland
New to an old house. Want to address cold floors and dampness. Also, can you replace a dry rot beam?
Vicinity of NE Hancock St in Portland
Recently purchased house, noticed rainwater leakage in basement after significant rain. Appears to be seeping through walls in one place and coming under walls in another
Vicinity of NE Cleveland Ave in Portland
We would like to encapsulate our 6' crawl space.
Vicinity of SE Robinette Ct in Portland
Water seeping under brick fireplace in basement intermittenly
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
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