Contact Us For
A Free Estimate!
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
Top Air Filter System of 2025
This award is in recognition of the best in the industry air purifier; the Aspen, from the company Elemental Air... [Read more]
Global Awards 2024/2025
Each year Corporate LiveWire invites both readers and contributors to put forward companies, products, services, and individuals who they feel... [Read more]
Oregon Business 100 Best companies to work for in Oregon - 2025
These are the state's best companies, as rated by employee surveys. Congratulations!... [Read more]
More Awards
Happy Customers Surrounding Sumas, WA
Reviews

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

Reliable Sumas Waterproofing & Home Repair Experts

Crawl Space Encapsulation, Basement Waterproofing & More in Sumas, WA

Your home is one of your most valuable investments, and keeping it in top shape should be a priority. To protect it from moisture, mold, and structural issues, you need a trusted, experienced contractor. In Sumas, that’s where John's Waterproofing comes in.

With years of experience serving Washington homeowners, John's Waterproofing has built a reputation for quality and reliability. We partner with leading brands like Basement Systems Inc. and Total Basement Finishing™ to offer the best solutions available. Whether you’re dealing with basement waterproofing, crawl space encapsulation, or other home repair needs, you can count on our team to get the job done right. Explore the services we offer below!

Our services include:

  • Basement waterproofing
  • Basement crack repair
  • Crawl space repair
  • Crawl space encapsulation
  • Mold remediation
  • Insulation
  • Foundation repair
  • Foundation leak repair
  • Sump pump installation
  • And more!

John's Waterproofing is proud to serve homeowners in Washington and the surrounding areas of Whatcom County. Give us a call at 1-503-694-4841 or click below to book your free estimate!

Sumas Crawl Space Repair Company

Your crawl space significantly affects your home's overall health and comfort. Unfortunately, it's often neglected because it’s tucked away from view, leading to issues like moisture buildup and humidity. These problems can quickly spread, affecting the entire house. Ignoring your crawl space can result in costly repairs down the road, but the good news is that early signs of damage can often be detected before things get out of hand. If you've noticed the following signs, it may be time for crawl space repair or encapsulation.

Common signs your crawl space needs repair

  • Musty or unpleasant smells in your home
  • Cracks in interior walls
  • Rising energy costs
  • Pest or rodent sightings
  • Excess moisture or condensation
  • Standing water
  • Sagging or uneven floors
  • Increased allergy or asthma flare-ups

If any of these issues sound familiar, it’s time to call in a crawl space expert. John's Waterproofing offers professional crawl space repair, encapsulation, vapor barrier installation, and more throughout Sumas and surrounding areas.

Contact us today at 1-503-694-4841 or fill out the form to schedule your free estimate!

Reliable Basement Waterproofing in Sumas

In Washington, heavy rainfall is common, and unfortunately, it can leave homes in Sumas vulnerable to basement water damage. While some signs of water damage are easy to spot, others may go unnoticed. Ultimately, this can lead to costly repairs down the road. Addressing these issues early can prevent further damage and save you from expensive fixes in the future.

Common indicators of basement water damage

  • Mold & mildew growth
  • Wood rot
  • Cracked or deteriorating walls
  • Wet drywall or floors
  • Peeling, flaking paint
  • Increased humidity
  • Condensation on walls or ceilings
  • Puddles or standing water
  • Musty odors
  • White, chalky stains on concrete

If you notice any of these signs or have standing water in your basement, John's Waterproofing is here to help. We offer advanced basement waterproofing solutions designed to keep moisture out. Our services ensure your basement stays dry and comfortable all year round.

Contact us today to schedule your free estimate for basement waterproofing in Sumas or nearby areas!

Your Go-To Basement Finishing Expert in Sumas

After waterproofing your basement, John's Waterproofing is here to help you turn that space into something special! As your trusted basement finishing contractor, we can transform your lower level into a beautiful, functional area that enhances your home. Whether you envision a stylish home office, a cozy basement bar, a home gym, a guest suite, or any other creative space, we can bring your vision to life.

Basement finishing benefits

  • Enhances property value
  • Provides additional rooms for various purposes
  • Increase usable livable space
  • Prevents moisture & mold
  • Boosts energy efficiency
  • Improves overall comfort
  • Enhances indoor air quality
  • And much more!
  •  

Contact us at 1-503-694-4841 or schedule a free basement finishing estimate online today!!

Foundation Repair Company in Sumas

Your home’s foundation is essential to its overall stability. When it becomes damaged or begins to settle, it can jeopardize the structural integrity of your entire house. So, how can you tell if your foundation is in trouble? Look for signs like cracks in the walls or floors, bowing or leaning walls, uneven floors above the crawl space, windows and doors that stick, and other concerning symptoms.

If you’ve noticed any of these issues or suspect a foundation problem, don’t wait — contact John's Waterproofing, your trusted foundation repair experts in Sumas and the surrounding area. Our skilled team will thoroughly inspect your foundation and recommend the most effective repair solution to restore it to a solid, stable condition.

Our foundation repair solutions

  • Foundation wall repair
  • Steel I-beam systems
  • Carbon fiber wall reinforcing systems
  • Crawl space support jacks
  • And more!

For a free estimate on foundation repair in Sumas, WA, give us a call at 1-503-694-4841 or contact us online.

Job Stories From Sumas, WA
Puddles in the Crawl Space - Sumas, WA

When at a home show, this homeowner stopped at our booth. Here they chatted with a design specialist about the puddles of water that were under their home. To address this we scheduled a specialist to go out to do a full inspection. After crawling under the home, taking photos of the puddles, and the wet falling fiberglass, they sat with the homeowners and discussed options, landing on a full encapsulation to properly address the space. 

To begin we pulled out the old fiberglass and the vapor barrier. Once cleared out we installed a full interior perimeter drain system. This will ensure standing water wont happen here, instead collecting and channeling the water to the lowest point of the crawl space. From here the water enters the newly installed TripleSafe sump pump and is diverted away from the home to a LawnScape outlet. To insulate we than laid TerraBlock insulation over the dirt floor. By addressing the insulation along the dirt floor and later on the walls, we can bring the crawl space into the homes envelope, making the temperature well regulated and more energy efficient. CleanSpace is installed next. This 20 Mil vapor barrier is sealed into the crawl space, and contains a woven fiber through it, and is thus backed by a 25 year warranty against rips and tears. To keep the air healthy in this now contained environment we installed a SaniDry dehumidifier. And to complete the project we install spray foam, this insulates and air seals. The homeowner is amazed at how bright the crawl space is and looks forward to the energy savings across the years!

Top
Service Area
Free Quote