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Products & Services
Basement Repair Services & Products
WaterGuard Interior System
DryTrak Drainage Channel
TrenchDrain Drain Grate
IceGuard Discharge Line
FlexiSpan Wall Crack Repair
Polyurethane Crack Sealing
WellDuct Window Drainage
BrightWall Waterproof Panels
ThermalDry Wall Barrier
Basement To Beautiful Pre-finishing Wall Insulation Panels
Drain Tile Installation
SuperSump Pump System
TripleSafe Pumping System
UltraSump Battery Back Up
Sanidry Dehumidifier

Crawl Space Repair Services & Products
CleanSpace Encapsulation Vapor Barriers And Liners
Turtl Access Hatch
EverLast Crawl Space Doors
Sanidry Csb Dehumidifier
SmartDrain Water Drainage
SilverGlo Wall Insulation
TerraBlock Floor Insulation
SmartSump Sump Pump
Crawl-o-Sphere Crawl Space Fan
WallCap Block Wall Sealer
SmartVent Flood Vents

Foundation Repair Services & Products
Push Pier Underpinning For Settlement, Foundation Leveling, Sinking Foundation Repair
Geo-lock Wall Anchors
Geo-lock Helical Anchors
PowerBrace Bowed Wall Repair
CarbonArmor Fiber Wall Repair
SmartJack Crawl Space Support
Slab Pier Repair
PolyLevel Concrete Lifting
EZ Post Deck Repair
Shotcrete Wall Restoration

Company Awards
Installed 1 Million Sq. Ft. of CleanSpace
At the 2017 IMPACT Convention, the Rainy Day Basement System team were awarded for having installed 1 million square feet... [Read more]
Dan Malsch is Awarded as a Salesman
Awarded Dan Malsch for BizWiz salesman... [Read more]
More Awards

San Juan County, WA Verified Foundation Repair & Basement Waterproofing

For a FREE no-obligation basement waterproofing, foundation repair, crawl space repair estimate in San Juan County, WA, please fill out the form to the right and Rainy Day Basement Systems will contact you shortly.
Russ is an excellent service technician....
Happy Customers Surrounding San Juan County, WA
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Responsible basement waterproofing, foundation repair, crawl space repair company serving San Juan County, Washington

We not only adhere to the highest industry standards, we strive to be the industry leader in the home improvement related services we provide. We also use state-of-the-art products and technology which are designed to fix your home. We are the authorized Basement Systems dealer in San Juan County, WA.

Services we offer in San Juan County:

  • Wet/flooded basement waterproofing solutions.
  • Lifetime warranty on all perimeter waterproofing systems.
  • Foundation and structural repair solutions.
  • 25-year warranty against manufacturing defects on foundation products.
  • Crawl space sealing with CleanSpace vapor barrier.
  • 25-year warranty on crawl space encapsulation systems.
  • Financing Available
  • FREE written estimates and inspections, and fast installation
Job Stories From San Juan County, WA
Crawl Space Mold Prevention in Olga, Wa

After owning their home in Olga for 18 years, Jim and Diane reached out to Rainy Day Basement Systems because they noticed there was insulation hanging down from the joists in their crawl space; in addition to the presence of mold and rodents throughout. After seeing what Rainy Day was capable of, Jim and Diane decided to go through with the project knowing it was going to help combat Diane’s asthma.

Their entire crawl space was encapsulated with CleanSpace, an antimicrobial crawl space lining meant to prevent water vapor and mold from developing. They also installed a SaniDry CX dehumidifier to keep the crawlspace at a steady temperature and humidity that encourages mold to become dormant and inhibits the growth of future mold. To top it off, they opted for the SmartDrain with Remote style Water Watch Alarm, which can detect any plumbing complications that may be leaking into the crawlspace. Often these types of leaks can go unnoticed as they simply absorb into the ground.

Jim and Diane are thrilled to now be living with a mold-free crawlspace, and Rainy Day is delighted to be a part of the solution.

Crawl Space Mold Prevention in Olga, Wa - Photo 1
Preventing Mold in Lopez Island, WA

Robert and Janne S. started to notice that their crawl space was collecting water soon after their house was built. And while they hadn’t physically seen mold yet, they knew that the with the humidity the way it was, it was only a matter of time before it began to appear. They were also concerned about dangling insulation and the presence of rodents.

Rainy Day Basement Systems encapsulated their entire crawlspace with CleanSpace, an antimicrobial crawlspace lining meant to prevent water vapor and mold from developing. They also installed a SmartSump pump along with an UltraSump battery back-up system for worst-case scenarios. To assist in the fight against mold, a SaniDry CX dehumidifier was installed to keep the crawlspace at a steady temperature and the humidity low enough to encourage mold to become dormant and inhibit the growth of future mold. Finally, they sealed it all off with an Everlast Crawl Space Door for easy access to and from their crawl space. These doors are specially made for sealing crawl spaces and are made of completely inorganic material that is waterproof, rust proof and resistant to the growth of mold.

Groundwater Seepage in Friday Harbor, WA Crawlspace

During our initial inspection of Michael’s Friday Harbor, WA, farmhouse, Rainy Day discovered groundwater seepage, mold, condensation, and pests in his crawlspace. We came to the home and got right to work with installing a new drainage system and crawlspace encapsulation system. A new three-in-one TripleSafe sump pump was also installed. We sealed all entries with vent covers and then added the SaniDry Sedona dehumidifier. Now, all of Michael’s moisture issues are simply a thing of the past.

Whether you are up north in Friday Harbor, or down south in Edmonds, we offer free inspections and estimates for all your waterproofing needs under the home. Call us today to schedule at 1-833-988-3570

Groundwater Seepage in Friday Harbor, WA Crawlspace - Photo 1
Woodboring Beetles and Sagging Floors in Eastsound, WA

Doug T. from Eastsound, WA, first spoke with our appointment center because he was interested in replacing the pier blocks at his hotel due to sagging floors. With the sale of the building coming shortly in the future, he was hoping to get the project done as soon as possible. When we got there, we found extensive powderpost beetle damage. Powderpost beetles are woodboring beetles attracted to places with wood and moisture. This makes crawlspaces and basements an absolute feeding ground for them. These pesky bugs are hard to get rid of because they can live up to a year and a half in infested wood. Rotting posts can often be replaced with SmartJacks, and we have the best tools and expertise to address Doug’s moisture problems and floor permanently. Addressing the underlying issue of water control will help alleviate the issue of continuous powderpost beetle damage in the future.

Call today to schedule a free inspection and estimate at 1-833-988-3570

Drainage and Sump Pump on Orcas Island
Dot and her family were purchasing a home on Orcas with some crawl space issues that needed repair. They received advice that they should repair it before the rainy season. We designed a system with our sump pump and a more sound drainage solution. With our TripleSafe sump pump, the crawl space has reliable protection from water. With our patented drainage piping, we fixed water leaking from the wall/footing joint.
Tired of dealing with a crawl space leak? Give us a call to schedule a free inspection and estimate at 1-833-988-3570.
Serving the following San Juan County, WA zip codes
Eastsound 98245, Lopez Island 98261, Friday Harbor 98250, Olga 98279

our service area