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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 NE Skidmore Street in Portland
We just purchased a new home and want an expert to help us make the updates needed to keep our basement dry!
Vicinity of SW Eastmoor Terrace in Portland
I am a contractor just starting a whole house remodel. During Demolition we discovered a large amount of water in the crawl space which needs to be addressed.
Vicinity of in Portland
We need a 300 square foot area of our basement slab repaired.
Vicinity of NE Flanders St in Portland
Basement and garage share a concrete wall. Rain about 2 weeks ago through this wall altho no signs of water I can see on wall. Water came in fast. Hoping to repair/understand. Thanks!
Vicinity of in Portland
When watering plans close to the right side of the house water came through to the concrete and the basement. Would like an expert opinion
Vicinity of SW Keerins Ct in Portland
I have standing water under the house and my sump pump is not working.
Vicinity of in Portland
We have a musty smell coming up into the living space from our basement. Would like to prevent the crawl space/basement air from coming up into our living space.
Vicinity of SE Ladd Ave in Portland
Leaky basement
Vicinity of NW Lost Park Drive in Portland
Check moisture in crawl space, possible erosion, proper drainage; estimate cost to waterproof crawlspace and foundation.
Vicinity of in Portland
Moisture is seeping through my basement walls, leaving orange blotches on the walls. Additionally, my entire house smells like wet basement. I'd like to find out if it's possible to fix this problem and if it is, get an estimate. Thanks.
Vicinity of SW Heather Court in Portland
A couple of years ago our crawl space flooded almost to the foundation. We just finished a renovation where they also inserted a gravity drain to hopefully take care of our problems, but we are noticing with the relatively small amount of rain we've had in the last couple of months there seems to be an accumulation of water & or mud around one of our crawl space openings to the outside. The surrounding area has not been landscaped yet in any way as we just moved in 2.5 months ago, so I don't know if this is contributing. Is your work just underneath the house or do you do French Drains?
Vicinity of in Portland
There is a leak in the basement wall/floor that seems to be coming from outside. We'd like an appraisal and to figure out what is going on. Thank you!
Vicinity of SW Dosch Park Lane in Portland
I have an outdoor sump pump connected to the french drain system that is about 5 years old. Our landscaper put it in and I need someone now to service and maintain it for me. Is this work that you can do?
Vicinity of in Portland
We would like to finish our basement to include an additional bedroom, bathroom, living space, and finished laundry.
Vicinity of in Portland
I have a 1913 bungalow with partial concrete foundation/basement. The area of the house that is on post and beam, particularly one corner dramatically slopes downward. I have a very accessible crawl space and was interested in the SmartJackĀ® Crawl Space Stabilizer system you advertised on your website.
Vicinity of SW Humphrey Blvd. in Portland
Continue to get an odor from the crawl space.
Vicinity of NW Buckboard Dr in Portland
We have water in our crawl space. There is a drain in place currently, however it is not draining efficiently. Possibly a french drain may be needed.
Vicinity of in Portland
Would like to understand what it would take to waterproof a basement it there is a bit of water that passes through to the floor drain when it rains. There are some small cracks in the floor, and then walls might seep a little (unsure)
Vicinity of Ne Morris St in Portland
Looking for estimates on finishing our basement.
Vicinity of SE Liebe St in Portland
Concerned about moisture in our crawl space. Looking to get an estimate on repair or encapsulation.
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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