About Us

Dan Malsch, Owner

Dan Malsch, Owner

Rainy Day Basement Systems serves  Snohomish, Skagit, Whatcom, Island, and San Juan Counties. This company offers basement waterproofing, crawl space repair, sump pump, and insulation. With more than 25 years of service, they have accredited multiple awards showcasing the commitment to running an honorable company. They also offer a no-obligation-free estimate for customers in the service area! 


Services Provided

  • +Basement Waterproofing

    • Exterior Basement Waterproofing
    • Interior Basement Waterproofing
  • +Crawl Space Waterproofing & Encapsulation

    • Crawl Space Access Doors
    • Crawl Space Encapsulation & Repair
    • Crawl Space Pump Out Service
    • Crawl Space Vapor Barrier
    • Crawl Space Vent Covers
  • +Doors

    • Cellar Door Installation & Replacement
  • +Foundation Repair

    • Earthquake Retrofitting
    • Foundation Crack Repair
    • New Foundation Construction
  • +Remodeling

    • Basement Flooring
    • Basement Walls & Basement Wall Panels
  • +Sump Pump

    • Sump Pump Installation & Replacement
    • Sump Pump Repair & Service
  • +Windows

    • Egress Window Installation & Replacement
    • Window Well Installation & Replacement

Company Highlights

  • In business since 2006
  • Financing offered
  • Residential & commercial services
By Todd
We were very pleased from the initial contact, to the onsite visit/proposal, to the end of the job. Time will tell as far as our overall satisfaction with the work done. No complaints - thank you!
By Marli
Thanks, Dan, Tom, Jerry, Nate and all the other crew members who worked on our basement and crawl space. No more musty smells!! We appreciated the hard work and the little extras along the way, like hauling out the old ceiling insulation. Pkus, the Therma-floor looks like it's going to work great, and makes the basement warmer already.
By Mike
Superior quality of work, quick response time, and friendly service from start to finish. Would highly recommend this company to anyone needing crawl space service. Thanks Dan and crew.
By Kathy
Great job! Thanks so much! I never have to worry about my dining room sinking again.
By Marina
Job well done, wish you have a contact electrician on hand that is available and knowledgeable right away after installation of sump pump.
By John
I liked th brochure that you sent me. JAD
By Bennie
To whom it may concern:I want to applaud your company especially the management because the attitude of the men have to have been passed down to them. From Jess, to Ryan, to Kevin, Daniel, Zach, I get the feeling that they do want to do the best for their customers. These people are an asset to any company. Daniel and Zach made me feel that I chose the right company. Thank you,Bennie R.
By Allen
From our first contact to the final clean up we experienced a very professional and informative company with specific solutions to our problems. All of the staff were great to work with and a special thanks to Kevin , Tony and David for a great job.
By Sandy
Russ arrived shortly before his scheduled time of 3p was very efficient and found the problem with the pump immediately -- rocks and sand were stopping the pump from flushing
By Julie
Professional and friendly service. Spent the time needed to solve our problem. My only problem is that the maintenance fee went up from what we were quoted last year.
By Pat
So far every concern was taken care of--Hopefully any follow up concerns we have will be addressed--Everything is working fine so far but have exceptionally dry weather so the system hasn't had a good test
By Lindsay
Already told neighbor!
By Marcus
it was a relief to find a company that genuinely wanted to fix our problem for the long term and not the short term. the employees were just great overall human beings. i wish more companies were like them.
By Harold
I would recommend to my friends that they get other estimates first before contacting you for the above reason.
By Cindy
This crew was great!
By Stephen
Very professional in all respects. Very good and fast service and were great in answering all questions.
By Dori
We have a very problematic basement that will probably never be easy to maintain. I hope you will continue to be there for us. You are the 3rd basement company we have tried.
By Sam
Dan please convey our thanks for all their hard work. It has lifted the stress that we have had in regards to our crawl space. It is a place that we actually want to go to now. We will be fixing all of our communication wiring in the near future due to the cleanliness and comfort of the crawl space.
By Judy
Very pleased with the entire process from Ed to Kevin to Tony, Tyler and crew! Everyone was pleasant, friendly and easy to work with. The finished work looks fabulous!! Work completed ahead of time, coordinated well with other contractors, and pump is working hard already! Thank you.
By Jeff & Vicky
Price kept it from being a 10! 
Allen and Ann S.
Darrington, WA
Professional, polite, good work skills
Sherman B.
Sultan, WA
I have been completely impressed with how everyone at Rainy Day has communicated with us about everything they planned to do. From the first sales call until the final day of work. Everyone went out of there way to make sure we knew what to expect next. The operations manager came out at the beginning of the project, and a job this big is definitely a project and went over the work one more time and gave us a rough schedule on when they expected to get the work done. He also kept us updated on the crews schedule on a daily basis because they were facing some unexpected weather challenges due to snow in the area. We had a couple of crews involved in the project and the foremen of each crew made sure we knew just what they were going to be doing that day when they arrived and then what they had accomplished just before they left in the evening. The only thing I would like to see is to have the operations manager come by one last time after the work was completed and inspect the final installation. I recently had a new roof put on by a small roofing company in the area and after the job was completed the owner of the company came out and inspected the work and found a few (very few) items he thought needed correction and had someone come out and fix them. I really appreciated that extra care since I am far from an expert on roofing. The same applies here with the crawlspace and the Rainy Day material. I'm far from being an expert on this part of our home so one last look at the work by someone who is would be awesome. Bottom line is I think the system should be very helpful in controlling both moisture in the crawlspace and therefore the house and in controlling rodents that are a constant issue when you live in a rural area with woods and fields surrounding the house.
Vikki & Jeff P.
Duvall, WA
The information packet you mailed was quite helpful. I appreciated the handwritten thank you note. (I've never received one from a business!) Kevin, Josh, & Tyler were amazing. Love all the light the new basement windows bring in!
Don and Marcia L.
Brier, WA
Dan Malsh and his crew are top-of-the-line. The interior of our crawl was choked with footless concrete foundations poured in the 1940's. Subsequent remodels added a few more. All were cracked and sinking--leaving leaving the floors tilted and waffled. Dan offered several repair options and we found some that reasonably met our budget. We chose to have those walls demolished and removed. A huge effort! Our home is now rock solid. Special mention to Jerry Soto and the crew (Martine, Arturo, Eric, Nate, etc.) for their ethics, dedication and pride of workmanship. Jerry kept me well-informed and was a wealth of knowledge not only of his trade but of related crafts. Worry not about this work group. They are among the best.
Kathy W.
Concrete, WA
Very polite, hard working and thorough. Very informative about products and recopmmended applicatinons.
Lee B.
Carnation, WA
Everyone was very helpful. Wyatt & crew were professional and focused on high quality. The final walkthrough was amazing.
Stephanie L.
Carnation, WA
Zachariah was terrific. We felt informed & not pressured. Daniel's crew was super personable & polite, communicated with us well, but most of all did a fabulous job.
Darlean and Tim W.
Monroe, WA
Dear Dan, My husband and I would like to take this opportunity to thank you for the wonderful work you and your crew have recently done for us. I can honestly say this is the best home improvement investment we have ever made! Your Rainy Day Basement Systems crew is the most professional group we have ever hired. Their respect for our home and privacy was very reassuring and the quality of their work was truly insurmountable. Our eight years of problematic crawlspace issues is finally over! Rainy Day Basement was able to resolve water issues that two other companies could not. I can now sleep much better knowing that I have a clean, dry and rodent free space beneath my home. We are ever so grateful and will be recommending this work to family and friends for years to come.
Darlean and Tim W.
Monroe, WA
To Whom It May Concern, I can honestly say this is the best home improvement investment we have ever made! Our Rainy Day Basement Systems crew was the most professional group we have ever hired. Their respect for our home and privacy was very reassuring and the quality of work their work was truly insurmountable. Our eight years of problematic crawl space issues is finally over! Rainy Day Basement was able to resolve water issues that two other companies could not! I can now sleep much better knowing that I have a clean, dry and rodent free space beneath my home. We are ever so grateful and will be recommending this work to family and friends for years to come. 
Tanna and Brruce L.
Snohomish, WA
Polite, knowledgeable, really explained the system. Really assessed our situation; didn’t just try and sell us something.
Don and Jeanette C.
Snohomish, WA
I trusted the salesperson and he was very knowledgeable. I would use Rainy Day again, however, I’m sure I won’t need to.
Jeff and Elizabeth T.
Snohomish, WA
We were very pleased with the crew. Jerry had a “teacher’s heart” as he explained everything to me. He was very knowledgeable. Also, I was thrilled that they went above and beyond what was contracted in helping me design and dig the outlet trench. Dan you run a fantastic operation! Thanks!!!  
Jerrod and Denise R.
Snohomish, WA
Excellent. Ed helped walk us through the options and even came back a second time to review and revise the bid. Your demonstration of "Crawl Space Science" and explaining why your quality solution was right for us helped me choose you over any other contractor. Wyatt, Kevin, and crew were very professional. "Customer first" was clearly demonstrated. Thank you. You all were certainly not the cheapest solution, but you were able to convince us that the other solutions presented to us were significantly less value, and may not actually solve the issues we felt we had.
Jarrod R.
Snohomish, WA
I want to thank Rainy Day Basements for a great job on my really old crawl space.  I own a 1902 Victorian in Snohomish oldtown and when I bought the place, my inspector came up from the crawl space and told me "I would not buy this place."  It was a disaster down there.   After going ahead with the purchase, we got several quotes for crawl space cleanups and other services.  The one that kept us thinking (and frankly kept us up at night) was the "full crawl space encapsulation" quote from Rainy Day.  It sounded like the most expensive option but also sounded like it would be one of the best investments we made in our house.  If the part of the house that the rest of the house is built upon isn't healthy, then what do you really have?   We decided to go ahead with the full encapsulation.  We want to thank Ed for taking the extra time with us to run through the options (including working with us on the cost estimate) and to understand the science and the "why" behind what we were doing.  Then Kevin, Wyatt and his crew came and knocked out a beautiful job.  I am not kidding when I say that I could eat off the floor of my 1902 crawl space now.  This system is solid and will protect my home and help us with improved air quality in our home from here on out.   Rainy Day did everything promised and never made us doubt our investment. Those guys work really hard to do what they do.  We look forward to having them come back annually to take a look at their work and make sure all things are in good working order.When I go to sell this house, I promise you that at least one photo of this beautiful crawl space will be a part of the photos that will sell this house in a single day!!Thank you, Your friends in Snohomish in oldtown!!
Deb F.
Snohomish, WA
Friendly, professionals who communicated frequently and answered all our questions throughout the entire process.
Keith R.
Snohomish, WA
They provided a fair, reasonable estimate and had a knowledgeable staff & crew.
Gary L.
Snohomish, WA
Owners – Rainy Day Basement Systems: This is a letter of appreciation and thanks. Your three man crew arrived promptly, knowing their task of creating a place for the drainage system (R walls), clean-outs, and a sump pump system (inside & outside) and their using concrete to cover and secure the above. This was done professionally and quickly. We had prepared the area as thoroughly as possible to expedite their task. I could not be more pleased with the choice of your company, your staff and will recommend your company to others without reservation. Your office staff deserves commendations as well for their professionalism. Regards, Gary L. Snohomish, WA
Nick & Taylor C.
Snohomish, WA
Office had very good communication from start to finish. Ed was very professional & answered all our questions. Installation was clean & professional. Very respectful of our home & belongings. Took extra care to do good work & clean up after. I heard of your company through word of mouth. It was an easy decision. 
Taylor O.
Snohomish, WA
Communication was outstanding. Jean-Paul did a good job. I know Robert from previous - he is a good asset to your company.
Sharene P.
Snohomish, WA
I appreciated Kirsten's background in home inspection, her thoroughness in evaluating, and explaining details to me. Daniel and his crew were awesome! They were always on time, communicative, explained daily work with photos, and did great work. They all deserve a raise/ extra bonus! My house and crawl space was spotless at the end of their work. I chose to work with Rainy Day because of the response time to have someone come out after my initial call; the thoroughness of inspection detailed work suggestions & transparency of cost. 
  • CleanSpace installed in Concrete, WA, Basement - Before Photo
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    CleanSpace installed in Concrete, WA, Basement - After Photo
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    CleanSpace installed in Concrete, WA, Basement

    This basement was leaking frequently enough to cause mold to grow. The basement had odors and humidity that prompted the homeowner to call us for our free inspection. We installed our WaterGuard® basement waterproofing system. This system comes complete with a written transferable warranty! Now they will have a clean, dry basement with no more mold!

  • Concrete, WA Basement Waterproofing - Before Photo
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    Concrete, WA Basement Waterproofing - After Photo
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    Concrete, WA Basement Waterproofing

    After purchasing her home in Concrete, Wa, Kathy took on the exciting role of remodeling her new place. One of her first projects she decided to do flooring on the upper levels of the home. Unfortunately, once the project began she found out the floors were too uneven to proceed. She knew there were foundation issues, but did not know the extent of the problem. The home had a partial basement, partial crawl space. The problem worsened when the basement started to leak. After hearing about numerous fixes and options from contractors and friends, she decided to look for the experts in the field. She wanted to have a dry basement permanently, so we tailored a design to fit her needs. With a complete waterproofing system to help with the settling and prevent future leaks, Kathy is completely satisfied with her results!

  • Mold and Rodents in Crawl Space Concrete, WA - Before Photo
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    Mold and Rodents in Crawl Space Concrete, WA - After Photo
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    Mold and Rodents in Crawl Space Concrete, WA

    Mold in the insulation was a growing concern in this crawl space in Concrete. Joan, the homeowner, was preparing to sell the home knew the problems under her home was holding things back. Floors in the home were sagging and there was also a rodent problem. We installed 1096 feet of our CleanSpace Light vapor barrier to protect the crawl space and seal out the moist, humid air. To lift the sagging floors, we installed our SmartJack support. SmartJacks will stabilize the sagging floors and are fully adjustable for the the future.

  • Carnation, WA Crawl Space Sealing - Before Photo
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    Carnation, WA Crawl Space Sealing - After Photo
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    Carnation, WA Crawl Space Sealing

    Before: Darrel's crawl space was an unpleasant place, filled with moisture, mold, and pests.

    After: Rainy Day's CleanSpace Encapsulation System transformed the crawl space into a clean, dry, and healthy environment. Darrel's home is now more comfortable and energy-efficient, and the crawl space is no longer a source of worry.

    What is CleanSpace Encapsulation?

    Our CleanSpace Encapsulation System seals the crawl space from the outside air and moisture. This helps to prevent mold, mildew, and pests from entering the home. CleanSpace is a durable, 20-mil plastic sheet material that is designed to permanently prevent moisture, outside air, and pests from getting into your crawl space.

    Benefits of CleanSpace Encapsulation:

    • Prevents mold, mildew, and pests from entering the home
    • Improves indoor air quality
    • Reduces energy costs Increases home comfort
    • Adds usable storage space

    If you are considering CleanSpace Encapsulation for your home, please contact Rainy Day for a free, no-obligation inspection and estimate at [phone] today!

  • Before & After Basement Waterproofing in Monroe, WA - Before Photo
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    Before & After Basement Waterproofing in Monroe, WA - After Photo
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    Before & After Basement Waterproofing in Monroe, WA

    Kraig and Janel were dealing with periodic leaking during heavy rain in their Monroe basement. The seepage through the walls was a major problem and they wanted to get it fixed. We solved the leak using our basement DryTrak Basement Drainage System. DryTrak is noninvasive and installed above ground. The practical design safely rids the basement of water seepage to ensure the area stays dry.

  • Crawl Space Encapsulation Woodinville, WA - Before Photo
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    Crawl Space Encapsulation Woodinville, WA - After Photo
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    Crawl Space Encapsulation Woodinville, WA

    Before our company installed CleanSpace Encapsulation and sealed the crawl space, it was a breeding ground for moisture and pests. The space underwent a significant transformation. Now it is dry and free of mold, mildew, and pests. Our CleanSpace Encapsulation system, which consists of a thick, durable liner that completely covers the crawl space floor and walls, provided an effective barrier against moisture, pests, and other contaminants.

  • Vapor Barrier Installation in Woodinville, WA - Before Photo
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    Vapor Barrier Installation in Woodinville, WA - After Photo
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    Vapor Barrier Installation in Woodinville, WA

    Before encapsulation, the crawl space under the house was a nightmare. It was dark, damp, and musty, with mold. The air was thick with the smell of mildew, and pests such as rodents and insects were free to come and go as they pleased.

    After the crawl space was encapsulated with CleanSpace, it was like a different world. The dark and dingy space was transformed into a clean, dry and bright environment, free from mold and moisture. The musty smell was gone, replaced by fresh air that flowed throughout the home. The sealed space kept pests out, making it a great storage area for seasonal items and providing peace of mind. The encapsulation with CleanSpace was a smart investment that improved the comfort and health of the entire home.

  • Crawl Space Repair in Woodinville, WA - Before Photo
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    Crawl Space Repair in Woodinville, WA - After Photo
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    Crawl Space Repair in Woodinville, WA

    Before, this crawl space was a dark and damp area that was full of moisture, mold, and mildew. After, the crawl space was transformed into a clean and dry area that is free of moisture, mold, and mildew. The CleanSpace liner acts as a barrier to prevent moisture from seeping through the dirt floor, and the walls are covered in a vapor barrier to further protect against moisture. The encapsulation process seals off all gaps and openings, preventing pests and rodents from entering the crawl space. The air quality has improved, and the musty smell is gone. The wooden beams and foundation are now protected from moisture damage, ensuring the longevity of the house's structure. The encapsulation has not only improved the crawl space but also the overall health and safety of the entire home.

  • Healthy & Dry Snohomish, WA Crawlspace - Before Photo
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    Healthy & Dry Snohomish, WA Crawlspace - After Photo
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    Healthy & Dry Snohomish, WA Crawlspace

    Nick and Ashley were excited to be having a new baby joining their family, but before that could happen, they wanted to ensure their living space was in impeccable health. We installed new piping and drainage with a sump pump system to keep the crawlspace dry. Then, we improved the air quality in the home using CleanSpace to seal it from the earth and added a dehumidifier. Now, they can rest easy knowing their home is healthy and free of mold and moisture!

  • Wet Crawl Space Fixed in Snohomish, WA - Before Photo
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    Wet Crawl Space Fixed in Snohomish, WA - After Photo
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    Wet Crawl Space Fixed in Snohomish, WA

    Wet, dirty crawl spaces are bad news. After installing new drainage in this wet crawl space, we encapsulated it with our patented, thick 20mil CleanSpace crawl space liner. With CleanSpace, you can have a dry, healthy crawl space!

BBB A+ Rating

BBB A+ Rating

EnerBank USA 2023 Star Performer Award

EnerBank USA 2023 Star Performer Award

Porch Vetted

Porch Vetted

HomeAdvisor 1 Year

HomeAdvisor 1 Year

HomeAdvisor Top Rated

HomeAdvisor Top Rated

HomeAdvisor Screened and Approved

HomeAdvisor Screened and Approved

Installed 1 Million Sq. Ft. of CleanSpace

Installed 1 Million Sq. Ft. of CleanSpace

Awarded for total sales

Awarded for total sales

Awarded Dealer for Total Sales at convention

Awarded Dealer for Total Sales at convention

Rainy Day is Awarded for Sales in 2013

Rainy Day is Awarded for Sales in 2013

Dan Malsch is Awarded as a Salesman

Dan Malsch is Awarded as a Salesman