4.7 
17 *The Angi rating for Basement Waterproofing companies in Boulder, CO 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 Boulder, CO 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 December 31, 2025
Serving Boulder, CO and surrounding areas
Approved
In business since 2018
Free estimates
Customers say: Quick response
"We used Titan Foundation repair to fix a leak in our basement. I was very happy with the cost, speed, and quality of this project. Jonathan also went above and beyond the listed repairs to make sure everything was fixed."
+11
Serving Boulder, CO and surrounding areas
Approved
Super Service Award Winner
In business since 2015
Free estimates
Emergency services offered
"100% would reference them to your family, they took care of us as a big company (complete basement systems) like we were the home owners. We took initiative and resolved our customers problems immediately by contacting flat irons plumbing."
Serving Boulder, CO and surrounding areas
Approved
In business since 2014
Free estimates
Warranties offered
"Thrasher did a good job on the basement foundation and installation of new sump pump. A little pricey. Workers were prompt, courteous and cleaned up when done."
+12
Serving Boulder, CO and surrounding areas
Approved
In business since 2012
Free estimates
Warranties offered
"They did exactly what they said. After looking at the basement mudjacking, I noticed that they could have easily done some work to get their recently re-leveled floor to match with the rest of what was around the section they touched. Good work, but no extra effort."
+23
Serving Boulder, CO and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Warranties offered
Small jobs welcome
"I had my basement plumbing drains and water lines roughed in. Very professional and honest work. Price was fair and No Limits Plumbing and Drains are easy to work with. If anyone needs a basement roughed in with plumbing please call this company!"
+2
Serving Boulder, CO and surrounding areas
Approved
In business since 2024
Customers say: True professional
We pride our company on reliability, great communication,\nintegrity, and quality work. We are experts in our trade and will do our best\nto keep you as educated as we can on your particular task or project. We are licensed and insured. We look\nforward to earning your business!
Serving Boulder, CO and surrounding areas
Approved
In business since 2014
Free estimates
Credit card accepted
"Jordan was awesome! He initially sent one of his guys out to check for some gurgling and sediment in our plumbing in the basement. They took a good look and found some grading issues with our pipes. Jordan followed up with me after and then committed to coming out himself to determine options. Throughout it all he was very communicative and extremely knowledgeable. We discussed some options and moved forward with the one that made the most sense. The issue was addressed and Jordan followed up later on to make sure everything was still good. Highly recommend Jordan and team dr.drain!"
+1
Serving Boulder, CO and surrounding areas
Approved (Corporate)
In business since 1999
Free estimates
Warranties offered
"Very courteous and considerate crew. They took extra precautions to ensure cleanliness and avoid any damage to the floors while moving equipment into the basement. The quality of the work is excellent and conformed exactly to the contract. We are totally satisfied with Complete Basement Systems and highly recommend them for foundation and basement repair work."
+16
Serving Boulder, CO and surrounding areas
Approved
Free estimates
Warranties offered
Small jobs welcome
"Dillan with Larry’s legacy land works did a phenomenal job installing our kitchen floor ! Great attention to detail"
+4
Serving Boulder, CO and surrounding areas
Approved
Super Service Award Winner
In business since 2019
Free estimates
Emergency services offered
"Was put on the schedule right away. Came on time. Dispatched team to clean up water in the basement. Clean up team was also very timely and punctual."
+24
From average costs to expert advice, get all the answers you need to get your job done.
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