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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
Before and After Pictures from Sandy
Wet Basement in Sandy, OR

Wet Basement in Sandy, OR

Before After
Wet Basement in Sandy, OR Wet Basement in Sandy, OR

This customer had a finished basement that was used for kids living space, but without the proper waterproofing system in place they started to get water seepage and leaks down in the kids’ bedrooms! This was destroying their stuff and leaving it an unsafe place to dwell in. Our team came out and put in a full WaterGuard system and put in our Thermaldry Wall system which will help reflect heat and make the room much warmer for the kids as well. The homeowners chose to finish the basement themselves so we set up the basement for them to finish over. 

CleanSpace, Salem, OR

CleanSpace, Salem, OR

Before After
CleanSpace, Salem, OR CleanSpace, Salem, OR

As you can see in the photos, encapsulating your crawl space with the CleanSpace vapor barrier protects the structure of your home from mold and dampness. 

Messy Crawlspace with Critter Evidence in Sandy, OR

Messy Crawlspace with Critter Evidence in Sandy, OR

Before After
Messy Crawlspace with Critter Evidence in Sandy, OR Messy Crawlspace with Critter Evidence in Sandy, OR

The crawlspace of this home had evidence of critters living there, and the homeowners were looking to keep them out. As our design specialists discussed options we learned that the home had oddly high energy bills as well. To combat both the vermin and energy costs we did a full encapsulation with our crawlspace-specific insulation. This home will now be dry and healthy. 

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Your Reliable Sandy, OR Leaky Basement Repair & Crawl Space Repair Company

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Happy Customers Surrounding Sandy, OR

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Reviews From Sandy
Testimonials From Sandy
The price was better than they said it would be!
Testimonial by Sandy R. from West Linn, OR

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

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

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Case Studies From Sandy
Most of the time John's Waterproofing receives urgent calls because of water in a crawlspace or basement. Then there's the proactive customer that...
The usual choice for insulation is fiberglass. While this product is great throughout the walls of a home, it is specifically designed for spaces...
Job Stories From Sandy, OR
How to Hide a Sump Pump- Sandy, OR

Many of our customers become dismayed when they learn that they will need a sump pump in their finished basement. We often suggest that they build a cabinet around it and take the discharge line up the wall behind the drywall and then discharge it. This customer did do a very clever disguise of their sump pump. They had a finished basement and created a small cubby space where they took an old end table-type cabinet and used it to house the SuperSump Pump and hid the discharge line in the wall. Hats off to this homeowner!

How to Hide a Sump Pump- Sandy, OR - Photo 1
Waterproofed Basement Remodel Ready - Sandy, OR

The homeowner wanted to finish her wet, smelly basement, so she called on John's Waterproofing to solve the water problem and make sure she didn't have to worry about her basement after investing in remodeling. A System Designer was sent out a few weeks later and discovers problems with damaged and clogged downspouts as well as high water tables. 


WaterGuard is an award-winning piping system engineered specifically to solve basement water problems effectively and without the worry of clogging pipes from soils under the floor. Our crew installed it around the perimeter terminating it at a newly installed SuperSump Plus. It has a primary pump with a battery backup to assure continued pumping in the event of a power outage. ThermalDry Wall is a wall system that makes the basement remodel ready and takes care of any water vapor intrusion from the walls. Now this homeowner can finish and enjoy a comfortable space without the worry of water intrusion.

Crawl Space in Sandy, OR

Nicole called into our office and made an appointment to have Sean J come out and assess her crawl space that had gotten water in it from the water heater. A bit of a mess had been made and, Sean suggested that she go ahead and have a clean up done and then the installation of CleanSpace. Nicole agreed and so Delfino and his team here at John's Waterproofing came out. They cleaned up the crawl space and installed a new SaniDry Sedona Dehumidifier that stops moisture and then installed CleanSpace to the entire crawl space. Nicole is now thrilled that she has a dry crawl space and no longer has to worry about any water damage occurring. And knowing that she will not have to worry for many years.

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