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Reviews From Jefferson
Products & Services
Basement Repair Services & Products
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
Aspen Air Purifier


Crawl Space Repair Services & Products
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 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 Floor Plans
Basement Flooring Ideas


Seismic/Earthquake Retrofitting
Company Awards
Best of Beaverton Plumbers - 2021
The goal is to connect people with the best local experts. Expertise scored Beaverton Plumbers on more than 25 variables... [Read more]
Ten Years with Home Advisor
Currently an active member of the Homeadvisor network 10 Year anniversary of initial Screening & Approval No homeowner complaints in the last... [Read more]
Elite Service Professional
Have a minimum of five reviews with a 5-star rating Overall customer service rating of 4.5 or better No homeowner complaints in... [Read more]
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Your Dependable Jefferson, OR Crawl Space & Basement Repair Contractor

Happy Customers Surrounding Jefferson, OR

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Basement Waterproofing & Crawl Space Repair in Jefferson, 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 Jefferson 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 Remodeling in Jefferson, 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 remodeled 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 Jefferson 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 basement that lasts a lifetime.

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Earthquake & Seismic Retrofitting in Jefferson

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

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Reliable plumbing services & repairs

Do you need to repair a burst pipe, or take care of a leaky pipe? John's Waterproofing provides quick and expert solutions to these issues and more. By taking care of your plumbing issues, we can prevent further problems and boost the overall efficiency of your home.

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
Job Stories From Jefferson, OR
Standing Water Found Under Home in Jefferson, OR

This home's exterior crawlspace had been just a plain wooden board, and after a few years, this began to show signs that it had been chewed on and waterlogged. Upon removal, standing water was found under the home. The homeowners wanted to find a solution to this issue and called in John's Waterproofing. 

Our crew arrived and began by clearing out the crawlspace. Once it was clean, we laid a 3-inch perforated pipe around the interior parameter. This collects the groundwater, pushing it towards a newly installed SuperSump plus. From here water is then diverted out and away from the home. We then laid down a layer of 6 Mil vapor barrier. to finish up we installed a new Turtl crawlspace entryway so that the homeowners wouldn't need to worry about this. 

Wet Crawlspace In a Home for Sale - Jefferson, OR

Before putting a home onto the market, a thorough inspection should be performed, and this means getting under the home to check out the foundation. This home had a very wet crawlspace. To set the home up to be sold, the sellers called in John's Waterproofing to waterproof this space and keep it healthy. 

To get this space in tip-top shape, we began by drying it out. It was too wet to begin work in! Once the space was dry, we cleaned out the debris and installed a three-inch perforated pipe drainage system. This collects the high amounts of groundwater and directs it to the newly installed SuperSump Plus where the water then gets pushed out and away from the foundation. We then installed a 6 mil vapor barrier and added in a brand new vent well. This home will now be dry and healthy for the new homeowners. 

Home needs Waterproofing before it is Sold - Jefferson, OR

The homeowners were ready to sell, but the house was not. Water damage was evident under their home and before they could move forward they needed in implement a waterproofing system. 

Our crew came out and dried out the water to assess the damage. Once it was dry, we dig in the dirt floor and laid down a three inch perforated pipe system to collect the water and divert it to a SuperSump that would take the water through a discharge line away from the homes foundation. Our crew then installed a 6 Mil vapor barrier that would keep water from reaching any wooden foundation pieces. To cap it off, we changed out the vent covers so they could help keep water out. 

The home was then ready to be sold!

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