
Serving Rainier, WA and surrounding areas
Approved
In business since 2005
Free estimates
Warranties offered
"Had a sump pump installed. Haven’t had a repeat of the problem."





+33

*The Angi rating for Basement Waterproofing companies in Rainier, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.
*The HomeAdvisor rating for Basement Waterproofing companies in Rainier, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.
Last update on August 06, 2026

Serving Rainier, WA and surrounding areas
Approved
In business since 2005
Free estimates
Warranties offered
"Had a sump pump installed. Haven’t had a repeat of the problem."





+33

Serving Rainier, WA and surrounding areas
Approved
In business since 2011
Free estimates
Warranties offered
"We will know more in the winter when it rains, but the work done went exceptionally well!"




Serving Rainier, WA and surrounding areas
Approved
In business since 2012
Free estimates
Credit card accepted
"Excellent service and very thorough with explanation and getting the right. I researched many skylight installation companies and decided to hire Ari and Elijah. I will recommend my colleagues and friends and family. I will absolutely use this roofing company for any roof work on my house."

Serving Rainier, WA and surrounding areas
Approved (Corporate)
In business since 1995
Free estimates
Emergency services offered
"They made my cracked driveway look like new. With the stabilizing they did, itâ ll last another 100 years! Very happy with my basement also!"





+16

Serving Rainier, WA and surrounding areas
Approved
Super Service Award Winner
In business since 2013
Emergency services offered
Warranties offered
"Dylan from Harts Services was prompt, professional and courteous... he scoped out three unfinished basement floor drains to determine why they weren't draining properly... he even invited me to observe the process which I did... Dylan was able to diagnose the problem and provide me with viable solutions and costs and within a short period of time emailed me that information to make an informed decision... quite pleased with the service and would/will not hesitate to engage Harts Services again"





+334

Serving Rainier, WA and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Credit card accepted
Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business, we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!





+15

Serving Rainier, WA and surrounding areas
Approved
In business since 2013
Emergency services offered
Warranties offered
"This company is so professional and kind. Anthony, the rep who came to do the estimate on a basement kitchen sink and shower installation was so knowledgeable. and patient, My elderly mother has moved in and is making our finished basement her new home, he addressed all her concerns and helped to make some smart choices. Lexi, the phone coordinator was lovely as well."





+13

Serving Rainier, WA and surrounding areas
Approved
In business since 1992
Free estimates
Emergency services offered
"We had a foot of water in our crawl space after the snow and 6 in. of rain from the December 2021 storms. I had called several companies to come out to take a look and give quotes. Ethan from diversified was the 3rd quote we received. Ethan explained the issue, explained what they would do to remedy it, and answered all my questions. He sent me the quote which was very resonable. BE SURE TO GET SEVERAL QUOTES. ONE COMPANY QUOTED US DOUBLE OF WHAT WE PAID DIVERSIFIED. They were able to get a team out two days later. The team was on time, professional, and did really good work. We ended up needing a sump pump due to ground water coming up. They applied a mold application and completed the work in a day. I highly recommend these guys and did my research prior to having them do the work. I am very impressed and happy we chose them."





+18

Serving Rainier, WA and surrounding areas
In business since 2006
Free estimates
Warranties offered
"These guys did a great job on the drain cleaning and explaining to me how the drains were connected beneath and outside my home. I felt like the price was quite fair. I had gotten an estimate to re-do a french drain outside my basement after that experience, and I told them I would get back to them in a few months due to cost. It was a good price, but repairs are repairs, and most of them are expensive. I tried getting these guys out again a few months later, but I had a really hard time getting in touch with anyone. I was happy with the work from before, for sure."





+51

Serving Rainier, WA and surrounding areas
In business since 2005
Free estimates
Warranties offered
"So far so good. Rained hard last night and no evidence of flooding. We now have wall-to-wall carpeting so it better work!!"





+11
From average costs to expert advice, get all the answers you need to get your job done.

Need to fix basement water problems or safeguard your home from damage in the future? Use this basement waterproofing cost guide to budget appropriately.

An unfinished basement has a lot of potential for a family room or guest suite. So how much does it cost to finish a basement? Read on for all cost factors.

Dealing with a damp basement? Follow these steps for DIY basement waterproofing to keep water and moisture out and boost your home’s energy efficiency.

Struggling with a damp basement? Learn about basement waterproofing and how these tips can help keep your basement safe from the elements.

Can’t seem to get rid of the moisture and mold in your basement? Learn why basements tend to hold moisture and how to get rid of moisture in the basement.

Unearth the root causes of water seepage in your basement floor. Explore effective solutions to keep your basement dry and your home protected.