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Before and After Pictures from Corvallis
Super Sump in Corvallis, OR Basement

Super Sump in Corvallis, OR Basement

Before After
Super Sump in Corvallis, OR Basement Super Sump in Corvallis, OR Basement

This homeowner had a Super Sump sump pump installed to remove the excess moisture in her crawlspace. The Super Sump can remove up to 2,650 gallons of water per hour while working quietly and smoothly.

CleanSpace Cleanup in Corvallis Oregon

CleanSpace Cleanup in Corvallis Oregon

Before After
CleanSpace Cleanup in Corvallis Oregon CleanSpace Cleanup in Corvallis Oregon

This new homeowner found out that an inspection had been done at their home and requested that we come complete the work now that they owned the home. Our team removed the fallen insulation, cleaned the debris, and encapsulated the air to make a beautiful space and provide cleaner air for their home and reduced heating and cooling bills. 

Musty Damp Crawlspace - Corvallis, OR

Musty Damp Crawlspace - Corvallis, OR

Before After
Musty Damp Crawlspace - Corvallis, OR Musty Damp Crawlspace - Corvallis, OR

This home had condensation working its way under the home, which lead to falling fiberglass insulation, mud-caked vapor barrier, and signs of critters. We did a full encapsulation to solve this issue with; MoldX, TerraBlock crawlspace insulation, Spray Foam, TripleSafe sump pump, and Cleanspace vapor barrier. 

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Your Leading Corvallis, OR Crawl Space & Leaky Basement Repair Contractor

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Testimonials From Corvallis
Manuel H and crew finished job yesterday.
Testimonial by Nicholas Z. from Corvallis, OR

Basement Waterproofing & Crawl Space Repair in Corvallis, 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 Corvallis 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 Corvallis, 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 Corvallis 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 Corvallis

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

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Job Stories From Corvallis, OR
Finished Basement Leaking - Corvallis, OR

This homeowner called because they had nearly completed a basement remodel and they noted that there was water intruding into their bathroom before it was fully completed. They called on John's Waterproofing to help them protect their investment. A System Designer was sent out and she walked the homeowner through the basement and explained how the hydrostatic pressure was pushing the water in at the footing all the while letting the homeowner know that John's Waterproofing could not only fix the problem but give him a lifetime warranty that we would collect the water and, provided the pump was operating, the system would collect the water and remove it from the basement. Measurements and photos were taken and a plan was designed to solve this home's water problem.

A few weeks later a crew was sent out and began, the first task was to cut the existing walls and framing 36" up from the floor to make room for installing the WaterGuard.  WaterGuard is an effective and reliable interior gutter system that will solve wet basement problems permanently! The system was installed to lead the water to a TripleSafe sump pump system and discharged to the rain drain system.  To repair the cut walls quickly and with a great look, EverLast basement wall system was installed to cover the missing wall area, and then John's came back and installed ThermalDry Elite plank flooring for a natural wood look that will stand up to moisture and is durable. The homeowners are thrilled to know their finished basement will be safe from water issues. 

Finished Basement Needs Waterproofing in Corvallis, OR

This home had its basement finished by a general contractor so it could be rented out, it had been converted to a studio, with an outside accessway. However, it had not been waterproofed before it was finished. A few years after it had been completed, water spots began to poke up on the floor, and some musty smells were evident along with the drywall. With worry about rot and mold, the homeowners called in John's Waterproofing for full waterproofing and finishing. 

Our crew began by removing the damaged materials; carpeting, trim, and drywall. Once it was cleared out we dug a trench along with the interior of the parameter, by the entryway we installed our TrenchDrain and our WaterGuard drainage system was installed around the rest of the space. This system took groundwater and directed it to a newly installed SuperSump Plus. From here water is pushed out and away from the foundation of the home. We then installed our ThermalDry wall foil, which insulates and provides a vapor barrier so water is directed down the walls to the drainage system. We then installed our EverLast Wall system and our elite grey floor planking with newly installed trim. The final piece for this job was a SaniDry dehumidifier. This space will now be dry and healthy. 

Crawl Space, Corvallis, OR

Malcolm had an appraisal done on his home and was displeased to find out that there was some standing water on the vapor barrier in his crawl space. He had put in a newer sump pump so he was pretty disappointed when he found out it wasn't working as well as it should be. That's where John's came in! Our team of waterproofing professionals came right out and took care of the situation. The crawl space was cleaned out, the damp insulation was removed. We took care of the sump pump situation and got it installed to where it needed to be and Malcolm now has a dry, clean crawl space that passes inspections and functions to the best of its ability. 

Here at John's Waterproofing Company, we are always happy to help! 

Thermal Dry Flooring in Corvallis, OR Combination Basement

These homeowners had water leaking into their basement and wanted to stop the leakage and prevent further damage. Our inspector, Jack suggested our basement finishing systems because their basement was already partially finished. Of our systems, Allen and Meredith chose our Canyon Beige Thermal Dry tiles and Everlast Wall Panels.


Harry and his team swiftly set out to waterproof and finish Allen and Meredith's basement. They installed the Everlast Wall panels, which are neutral-colored wall boards that are immune to mold and moisture damage. We also placed in our Thermal Dry tiles which are beautiful, durable, maintenance-free basement floor tiles. They snap together and come in a variety of colors. The bottom of Thermal-Dry flooring has raised pegs that creates an air space and keeps water vapor from getting trapped under finished floors.


Allen and Meredith are very satisfied with their new finished basement and look forward to no longer having water issues.

Thermal Dry Flooring in Corvallis, OR Combination Basement - Photo 1Thermal Dry Flooring in Corvallis, OR Combination Basement - Photo 2
Serving the following Corvallis, OR zip codes
97330, 97331, 97333, 97339
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