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Verified Reviews for Basement Waterproofing pros in Derby, CO

*The Angi rating for Basement Waterproofing companies in Derby, 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 Derby, 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 August 27, 2026

Find Basement waterproofing pros in Derby

Avatar for Titan Foundation Repair, LLC
Titan Foundation Repair, LLC
4.8(
47
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Derby, 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."
Repair Crack in Foundation
Crack In Foundation
Basement Foundation Repair
Massive Crack
Sealed and Injected Basement Crack

+11

Response time8 hrs
Response rate89%
32 neighbors recently requested a quote
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No Limits Plumbing & Drains LLC
5.0(
110
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Derby, 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!

8 neighbors recently requested a quote
Recommended by56%of homeowners
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Avatar for No Limits Plumbing & Drains
No Limits Plumbing & Drains
5.0(
110
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Derby, 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!"
Sink Rough In
Washer
Sink for bathroom
Shower & Toilet
Before Cleanout

+2

Response time8 hrs
36 neighbors recently requested a quote
Recommended by56%of homeowners
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Avatar for Hyper Flow Service Company
Hyper Flow Service Company
4.9(
27
)
Basement Drainage Channels - Repair

Serving Derby, CO and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"I called Hyper Flow at around 7:30am, and James, their VERY helpful tech, was at our house by about 9:15. He promptly identified the problem (which was a smaller issue than we had feared) and got it resolved very promptly. He did NOT try to upsell us on anything, but we requested that he run a camera through our pipes to see if there was anything further to be concerned about. Fortunately, there was not, and he walked me through the video and showed us that our lines are in pretty good shape. Terrific service. We will definitely use these guys again."
Restaurant Grease system
Floor sink Jetting
Floor sink Jetting
Clean floor sink
Clean floor sink

+12

Response time9 hrs
Recommended by100%of homeowners
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Avatar for Thrasher, Inc.
Thrasher, Inc.
4.1(
182
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Derby, 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."
Basement Waterproofing Before and After
Concrete Repair Before and After
Thrasher Services
Thrasher Services
Thrasher Services

+12

Response time2 days
1054 neighbors recently requested a quote
Recommended by83%of homeowners
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Avatar for Groundworks
Groundworks
4.1(
521
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - RepairBasement Drainage Channels - Install

Serving Derby, 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."
Protect Your Basement Before & After
Correct Your Wet Basement
Protect Your Basement
Waterproof Your Basement
Protect Your Concrete Before & After

+16

Response time3 days
364 neighbors recently requested a quote
Recommended by84%of homeowners
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Avatar for Larry’s Legacy Landworks
Larry’s Legacy Landworks
5.0(
9
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Derby, 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"
Bathroom remodel
Bathroom remodel
Kitchen Remodel
Drywall skim coat
Shower Door Instillation

+4

9 neighbors recently requested a quote
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Avatar for Heart Heating, Cooling, Plumbing & Electric
Heart Heating, Cooling, Plumbing & Electric
4.7(
91
)
Basement Drainage Channels - Install

Serving Derby, 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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+24

8 neighbors recently requested a quote
Recommended by82%of homeowners
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Drain Unlimited, LLC
4.6(
31
)
Basement Drainage Channels - Repair

Serving Derby, CO and surrounding areas

Approved

In business since 2001

Emergency services offered

Warranties offered

"Cyrus was able to help me right away when I called him at 6pm on a Tuesday evening. He charged more than other companies quoted, but he was the only one who was willing to come after hours, and with a blocked sewer main, that was the most important thing. Very grateful for this company."
Response time7 hrs
2 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Drainline Services, LLC
Drainline Services, LLC
3.9(
233
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Derby, CO and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"Joe contacted me right away and had a technician out within the hour. Danny was super thorough and careful, which I appreciated since we had a gas leak. Problem was fixed within the hour and house was restored to safety. I will definitely use them again!"
basement repair
pedestal
Response time2 days
Recommended by92%of homeowners
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...
Showing 1-10 of 188
Basement Waterproofing questions, answered by experts

Whether to waterproof your basement from the interior or exterior depends on several factors, including your budget.

Exterior waterproofing is generally considered the superior method because it stops water at the source, preventing it from seeping into and damaging your basement walls. This approach offers the most protection, making it ideal if you use your basement for storage.

By contrast, interior waterproofing is often less expensive and requires less labor because the area is more accessible.

For maximum protection against water leakage and moisture, applying waterproofing measures to both the inside and outside is the best solution. However, if you must choose only one, stopping water from the outside is the most effective approach to preserve your foundation and prevent damage.

No, your basement dehumidifier doesn’t need to be on 24/7. While it’s an excellent tool for tackling damp, musty air, especially in humid seasons, leaving it running nonstop can backfire. Over-drying the space can mess with your sinuses, warp wood, and even crack certain materials. Instead, only use your humidifier when moisture levels rise above 50%, and then give it a break when the humidity levels drop.

Living in a finished basement is acceptable, but only if the space has the proper points of egress and includes smoke and carbon monoxide (CO) detectors to ensure the safety of the occupants. A good way to ensure your finished basement is suitable for use as living space is to get the basement finishing project properly permitted.

Some disadvantages of crawl spaces are mostly regarding the air itself—moisture build-up and poor ventilation, which can cause problems both in the house and underneath it, even damaging the foundation itself. Crawl spaces are difficult to access and often invite unwanted pests during the hot summer months and the cold winter ones. These hard-to-seal spaces are also susceptible to water damage during periods of heavy rain or melting snow.

Topical sealers adhere to the surface of concrete to create a protective layer. In many cases, this is all you need for concrete that sees light to moderate traffic, such as your basement. Penetrating sealers, on the other hand, bond with the free lime in the top layer of concrete to form calcium silicate, which prevents liquid from passing through. This type of sealer protects the surface from water, oil, and gasoline spills.

The Derby, CO homeowners’ guide to basement waterproofing services

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

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