Contact Us For
A Free Estimate!
Reviews From Sumas
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

Licensed Basement Waterproofing & Sump Pump Installation in Sumas, WA

Happy Customers Surrounding Sumas, WA
Work Requests

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

Trusted basement waterproofing & crawl space repair serving Sumas, WA

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 Sumas, WA.

Services we offer in Sumas:

  • Wet/flooded basement waterproofing solutions.
  • Lifetime warranty on all perimeter waterproofing systems.
  • Sump pump installation and repair services.
  • Annual maintenance on your sump pump from our professionals.
  • 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
Case Studies From Sumas
Marvin called Rainy Day to get an estimate, so we sent out Rainy Day’s Ed Upenieks to his location in Sumas, WA, to help design a waterproofing...
Job Stories From Sumas, WA
Basement Waterproofing in Sumas, WA

Marvin’s semi-finished basement in Sumas was periodically leaking in water during heavy rains. He was in a hurry to fix it before beginning his home remodel, so he allowed Rainy Day the opportunity to repair his wet basement permanently.


Our solution was to install WaterGuard around the perimeter of the basement. WaterGuard is a sub-floor perforated drainage channel used to help collect and discharge water through a high-capacity sump pump system. We installed our TripleSafe sump pump in an airtight basket to prevent clogging with three pumps in one, including a battery backup pump, to handle any potential water leaks.


Marvin can now enjoy peace-of-mind with a dry basement and healthy living space.


For a free basement or crawl space inspection and estimate, call today to schedule at 1-833-988-3570.

Work Requests From Sumas, WA
Project Location: Sumas, WA
Getting ready to sell house. Crawl space was flooded in 2021 Sumas flood. No damage to insulation but vapor barrier was displaced and needs to be removed and replaced. Looking for cost estimate. House is 1750sqft, crawl space is about 3' high.
Project Location: Sumas, WA
Clean and install crawl space space insulation And maybe a dehumidifier under house
Project Location: Sumas, WA
With recent floods in Sumas, WA my crawlspace did get water in it and it did get insulation. Would like a quote for crawlspace repair and one with crawlspace repair with adding a sump pump. Also do you offer financing?
Project Location: Sumas, WA
We just went through a flood. All the installation needs replaced. The floor underneath is not level and the vapor barrier needs replaced. We do have flood insurance also
Project Location: Sumas, WA
Had standing water in the crawl space this winter, so I would imagine I need a sump pump. Also probably need some insulation work.
Project Location: Sumas, WA
There is about 1180sq ft we need to have a vapor barrier put in. Or can purchase the barrier and put in our self.
Project Location: Sumas, WA
We need the insulation underneath the house removed and replaced.
Project Location: Sumas, WA
We just had our home inspected and were informed we need to have our crawl space cleaned of debri, our pipes insulated, and new plastic laid down.
Project Location: Sumas, WA
Plumber says I have rodent problems and need to have access holes repaired.

our service area