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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

Your Dependable Monmouth, OR Wet Basement & Foundation Crack Repair Experts

Happy Customers Surrounding Monmouth, OR
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Basement Waterproofing & Crawl Space Repair in Monmouth, 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 Monmouth 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 Monmouth, 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 Monmouth 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.

Click for a FREE Estimate!

Earthquake & Seismic Retrofitting in Monmouth

In Monmouth, 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 Monmouth, OR, please click below and John's Waterproofing will contact you shortly.

Click for a FREE Estimate!

Plumbing services & emergency repairs

Does your home have dirty drains, a clogged toilet, a burst pipe, or other plumbing issues? John's Waterproofing can help with these issues and more. We offer fast and efficient plumbing solutions.

Our plumbing services:
  • Emergency repair & pump-out services
  • Residential plumbing
  • Drain cleaning
  • Sump pumps & sewer ejection pumps
  • Frozen & burst pipe repairs
  • Kitchen, bathroom & laundry plumbing
  • Boiler installation & replacement

We proudly serve Monmouth, OR and areas nearby. Schedule a free plumbing repair estimate to learn more.

Case Studies From Monmouth
This basement in Monmouth, OR has a high amount of ground water and this moisture has created a completely unusable space and it made it to where the...
Job Stories From Monmouth, OR
Crawl Space, Monmouth, OR

Jaema has pretty severe allergies to mold and dust so she called into John's Waterproofing to see about having someone come out and do an inspection of her crawl space since she knew that there was some water flow there. Vinny went right out and gave her a quote on encapsulating her crawl space and went over all of the benefits that having a sealed crawl space provides. Jaena thought this sounded like a good option for her and in no time at all, Pedro and his crew were out to get started. 

The waterproofing process for this project included cleaning out the crawl space and removing all of the debris. It was dried out with a SaniDry dehumidifier, a Smart Sump pump was installed, CleanSpace vapor barrier, and then Fernando cam out and put in the Spray Foam insulation. All of these things working together to keep the crawl space dry, mold and dust mite free for years and years. 

Jaema is thrilled knowing that there are no more issues with mold underneath her house and is breathing easier also knowing that her crawl space is healthy.

Work Requests From Monmouth, OR
Vicinity of Caroline Way N in Monmouth
Bad smell under house. Muddy feeling under vapor barrier. Insulation is falling down. Old animal damage
Vicinity of Warren St N in Monmouth
Crawlspace is a mess. Needs to have old damaged insulation and vapor barrier removed and replaced. Needs Mold treatment. There are pest infestation currently being treated. Would like to get quote.
Vicinity of Candlewood Way N in Monmouth
Significant water in the crawlspace with the large amounts of rain. Looking for a quote for the installation of a drain or sump pump (we have elevation to work with so a passive system is feasible) and an actual vapor barrier.
Vicinity of Teton Dr E in Monmouth
We have standing water in our crawl space. Pulled out 30+ gal this weekend, but there is still more. House was built in 2007.
Vicinity of Mistletoe Road in Monmouth
We have a daylight basement and when it rains a lot water comes through the cracks and some spots along the walls
Vicinity of Whiteaker Rd in Monmouth
We have a manufactured home that was pit set on a concrete slab in 1998. It has a plywood skirting around the home that is partially below and partially above ground. When the home was placed on the slab a drain was installed to allow excess water to drain out from under the house and flow into a seasonal creek. This system has never really worked properly and we ended up digging our own sump hole at the access point and using portable 1/2 HP sump pumps with drainage pipes running along the ground over the years to deal with the water issues caused by heavy rains like we had last week. During the recent cold snap it came to our attention that varmints had gotten under the house, tore open the flexible heating tubing under the house and knocked the tubing off its supports allowing the insulation to get wet. We replaced the flexible tubing with solid metal but it has also come to our attention there is a problem with dry rot around the back door near the access point to the crawl space. These issues have caused us to believe that now may be the right time for us to try to repair the water and drainage issues we've been dealing with all these years, as well as possibly continuing the upgrading of the insulation under the house. I think we would probably be looking for estimates on how to possibly developing a working drainage system for a sump pump, waterproofing the crawl space, providing additional insulation or a barrier to prevent dry rot under the house and if seismic retrofitting is part of what is required to have an existing manufactured home tied down we would be interested in that as well. The best time to reach us is after 11:00 am on weekdays.
Vicinity of Winegar Ave E in Monmouth
Would like free estimate of crawl space for necessary repairs.
Vicinity of Bentley St. E in Monmouth
Purchased house in Monmouth in Oct. 2016. Would like to waterproof and insulate crawl space. Looks like it was waterproofed when built in 1997. Per Home Inspection done before purchases, crawl space in good shape.
Vicinity of Parkmedow Ave in Monmouth
Have some water under the plastic in crawl space a trench was dug before we purchased the house, but need water to go to the trench
Vicinity of Ozark ST E in Monmouth
We found mold under the paint in our kitchen pantry. We checked under the house, and there is some water in the crawl space. We need someone to help figure out what's going on and the best course of action! Thanks
Vicinity of Brateng Rd in Monmouth
Inspect crawl space, advise, moisture barrier installation?
Vicinity of East Main Street in Monmouth
I have a few projects related to the basement. I have a leak in the foundation around the area where there was an old bathroom that allows water in during heavy rains. I also have a small retaining wall leading down to the basement that has broken and needs repair as it is letting water in during heavy rains.
Vicinity of Helmick RD in Monmouth
We have a new construction house that has been a crawl space and standing water before the trusses and roof were installed. Interested in cleaning up and adding a vapor barrier for our 2800 sqft home. Request quote.
Vicinity of Killen Ct in Monmouth
Existing issues with water under the house especially with large floods would like quote to repair previous damage and if any mold/mildew issues
Vicinity of Ferns Corner Rd in Monmouth
Vicinity of Martin Way in Monmouth
I am going to be selling my home and I need waterproofing in the crawl space. I would like an estimate of cost for this. thank you!
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