Contact Us For
A Free Estimate!
Reviews From Longview
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 Longview
Failing Insulation and High Energy Bills in Longview, WA

Failing Insulation and High Energy Bills in Longview, WA

Before After
Failing Insulation and High Energy Bills in Longview, WA Failing Insulation and High Energy Bills in Longview, WA

This home had high humidity issues in the crawlspace. This had weighted down the original fiberglass insulation and it was falling in pieces. To remediate the issue we did a full encapsulation.  

Sump Pump in the Wrong Location - Longview, WA

Sump Pump in the Wrong Location - Longview, WA

Before After
Sump Pump in the Wrong Location - Longview, WA Sump Pump in the Wrong Location - Longview, WA

This home had an older sump pump in the crawlspace, installed before the current homeowner purchased the home. After living in the home for a few years, they went under the home to see how it was holding up. They discovered the hold vapor barrier had slide around a bit, leaving damp earth exposed and some mold growth. When they got to the sump pump they saw it was a mess, and there was a pool of water in the nearby corner. They called up John's Waterproofing for some assistance. 

The sump pump issue was because the pump had not been placed properly, it should be in the lowest spot, ensuring it collects the groundwater. We installed a full drainage system, a brand new sump pump, TerraBlock Insulation, CleanSpace, a SaniDry dehumidifier and will be adding Spray Foam insulation to the foundation walls as well. This crawlspace is now properly cared for and can remain dry and healthy. 

Water Problems in Crawlspace - Longview, WA

Water Problems in Crawlspace - Longview, WA

Before After
Water Problems in Crawlspace - Longview, WA Water Problems in Crawlspace - Longview, WA

This homes crawlspace had standing water, mud on the old vapor barrier, and falling fiberglass insulation. The homeowner needed to do something to address these issues, but wasn't looking for anything to expensive. To help them keep costs down while setting them up for more waterproofing repairs in the future we set them up with a pipe, pump, and plastic. We removed the old insulation and vapor barrier, and then installed a full drain system, sump pump, and a new 6 mil vapor barrier. 

Company Awards
Neighborhood Fave 2024 - Nextdoor
Nextdoor’s 8th Annual Local Business Awards John's Waterproofing has been named a 2024 Nextdoor Neighborhood Fave business, the annual awards program... [Read more]
This award is in recognition for total sales for the 2023-2024 year for Basement Systems. This prestigious award puts us... [Read more]
The Golden Shovel Award for a Service Technician
This award is dealt by Contractor Nation. It is in recognition for a service technician who has shown a tremendous... [Read more]
More Awards

Trusted Waterproofing Company Serving Longview, WA

   Extremely helpful  ...
Happy Customers Surrounding Longview, WA
Testimonials
Reviews

Click the icons to see what our customers had to say.

Basement Waterproofing, Crawl Space Repair & More in Longview, WA

John's Waterproofing is the Longview area’s trusted expert for basement waterproofing, crawl space repair, and more. Our team is committed to serving our customers with the highest degree of integrity. We install only the highest quality products backed by industry-leading warranties, giving you peace of mind that your home is protected for years to come. Learn more about the services we offer Longview homeowners below.

Services offered by John's Waterproofing

  • Basement waterproofing
  • Basement crack repair
  • Crawl space repair
  • Crawl space encapsulation
  • Mold remediation
  • Radon testing
  • Radon mitigation
  • Electrical services
  • Plumbing
  • Insulation
  • Foundation leak repair
  • Sump pump installation
  • And more!

Call 1-503-873-5650 or click below to schedule a free estimate in Longview, WA or nearby.

Crawl Space Repair & Crawl Space Encapsulation in Longview

Crawl spaces can easily fall into disrepair if left unchecked, accumulating debris, dirt, and in severe cases, pests and rodents. Don't let your crawl space get that far! Call the experts at John's Waterproofing to get the job done right the first time and save you the headache of a major project. Our vapor barriers and thermal insulation will keep moisture and bugs out to create an area that is clean, dry, and energy-efficient.

Our crawl space repair services

  • Crawl space encapsulation
  • Crawl space drainage
  • Drainage matting
  • Wall insulation
  • Floor insulation
  • Secure access wells
  • Crawl space doors
  • Vent covers
  • Structural repair
  • Crawl space fan
  • Crawl space dehumidifier
  • Crawl space excavation

Let John's Waterproofing help you create a healthier, more energy-efficient home with our crawl space repair and crawl space encapsulation services. Contact us to schedule a free on-site inspection and estimate today.

Longview Basement Waterproofing Contractor

TripleSafe sump pump for installation in Longview, WA

An inside look at our TripleSafe Sump Pump System, including the airtight lid, primary pump, secondary pump, and battery backup sump pump.

Is your Longview basement showing signs of water damage, such as damp walls, musty smells, or flooding when it rains? If any of that sounds familiar, it’s important to identify and repair the problem. While a wet or flooded basement can be a major headache to deal with, ignoring the problem won’t make it go away. In fact, it can lead to bigger, more serious — and more expensive — problems down the road. A wet, leaky basement reduces the comfort, indoor air quality, energy efficiency, and value of your home.

The good news? John's Waterproofing offers waterproofing products and services designed to solve your wet basement problems fast, including our state-of-the-art TripleSafe Sump Pump System. Learn more about our proven basement waterproofing solutions below!

Longview basement waterproofing services

  • Perimeter drainage systems
  • Doorway drainage systems
  • Sump pumps
  • Replacement windows
  • Wall coverings
  • Waterproof flooring
  • Dehumidifiers
  • IceGuard® discharge line system
  • Crack repair
  • Downspout extensions

Don’t let basement water problems last another day — contact John's Waterproofing today! Call 1-503-873-5650 or complete the provided form to schedule a free estimate for basement waterproofing in Longview, WA.

Radon Testing & Radon Mitigation in Longview

Radon is a cancer-causing gas that is both odorless and colorless, making it impossible to detect without specialized equipment. Causing more than 21,000 lung cancer deaths in the U.S. each year, radon is the second leading cause of lung cancer in the country.

If you’re concerned the radon levels at your Oregon & Washington property are above the EPA-recommended 4.0 picocuries per liter (pCI/L), we can help. John's Waterproofing is the Longview, WA area's qualified radon testing and radon mitigation company. Our trained experts have the tools necessary to both detect radon and keep levels low.

Our Longview radon services

  • Radon testing
  • Radon mitigation
  • HUD Multi-Family Radon Testing

Call 1-503-873-5650 or click below to learn more about the radon testing and radon mitigation services we offer in Longview, WA and nearby.

Job Stories From Longview, WA
Water Threatens Basement - Longview, WA

This basement was unfinished, but still set up for gaming. When water was found dripping along one of the walls during heavy rains, the homeowners knew they would need to get a waterproofing system. If water was left to keep intruding, there could be some issues. To address the problem, John's Waterproofing was called up. A full inspection was performed, and a waterproofing solution was settled on. 

To begin our work, the crew dug a trench around the interior perimeter. Here we would install a drainage system that consists of a bed of gravel and our WaterGuard drainage system. This will collect water and send it along to a newly installed SuperSump Plus at the lowest point, and then discharged away from the home to a LawnScape outlet. One of the windows was upgraded to a full egress window that could be used in an emergency since the basement was regularly being used. The walls were then covered with our BrightWall paneling. These send wall moisture safely to the WaterGuard system, and will not mold or mildew. As a final step we installed a SaniDry dehumidifier to keep the space healthy. 

Settling Home and Wooden Posts no Longer Support the Home - Longview, WA

This home had settled, and had caused some of the wooden posts to shift. Three of the posts no longer sat properly on their footing, and the home's floor was warped a bit because of this. They wanted to protect their home, so they called up John's Waterproofing for some structural repair and some general preventative waterproofing. 

To begin, our crew pulled out the general debris from under the home. We then installed four SmartJacks through the crawlspace. This will not succumb to any water issues and can be adjusted if needed in the years to come. We then dug a trench around the interior perimeter, where we installed a perforated pipe in a silt sock. This will collect groundwater and grade it to a newly installed SuperSump Plus in the lowest spot. This then pushes all water safely out and away from the home to a LawnScape outlet. We then laid down a new 6 Mil vapor barrier. This is overlapped throughout the crawl space and run up the foundation walls to help this space dry and healthy. 

Customer Suspects Repairs Needed - Longview, WA

This homeowner suspected that some cleanup and repairs might be needed for her crawlspace, so one of our Design Specialists was scheduled to go take a look.  Once there, he thoroughly examined the crawlspace and recommended a full encapsulation for its advantages in health and for the home.

After arriving a few weeks later, our crew got right to work and removed the damaged 6 mil vapor barrier, fiberglass insulation, and debris. They installed a 3" perforated pipe drainage system around the perimeter to collect the ground water and direct it to a newly installed TripleSafe sump pump, along with proper discharge. TerraBlock, a high-density foam product was laid over the dirt floor. This aids in insulating the crawlspace, protecting the new CleanSpace, 20mil, nylon-reinforced barrier. This is used to isolate each wooden post and anchored to the foundation walls. Lastly, a SaniDry dehumidifier was installed to ensure this home stayed dry and healthy. With all the vents sealed, Spray Foam insulation was applied to the full wall of the foundation to keep the home insulated and keep the air clean and free of mold.

Energy Lose in Longview, WA Basement

This home had high energy bills, and without any insulation in their unfinished basement, this was a great place to start to take control over heating and cooling costs. To ensure the job was done right, the homeowners called John's Waterproofing. 

Our crew arrived and began by digging a trench along with the interior parameter and installing a WaterGaurd drainage system. This would collect water and divert it to a newly installed TripleSafe Sump pump. We then covered the walls with our ThermalDry wall panels, this would help control the home's temperature, and was then covered in our BrightWall panels to give the space an easy to clean, bright unfinished look. This home saw their energy savings that very same month, and they could feel the difference as well. 

Finished Basement has Water Problems - Longview, WA

This basement had been finished, their basement had fully installed drywall and carpeting throughout. While this had been done well, the contractors who had done the work, never added in any waterproofing solutions. Some of the rooms were beginning to experience water mold coming through the drywall and they had sections of the carpeting that would get water saturated when there was heavy rains. They wanted to keep using their basement, so they called John's Waterproofing. 

Our crew came out and had to remove the interior Drywall sections of the basement as well as pull up all of the carpeting. We then dug down along the interior walls and installed WaterGuard piping to take all of the water to a newly installed SuperSump that would take all of the water and discharge it a safe distance away from the homes foundation. We then installed a ThermalDry wall radiant vapor barrier which keeps the homes heat in and water out. The floor was then covered in ThermalDry Carpeted Floor Tiles which would work to keep water out of the basement. Once we finished the basement was fully waterproofed and ready to be refinished. 

Top
Service Area
Free Quote