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Top-Rated Basement waterproofing pros in Congress - Updated Nov 2026

Avatar for Groundworks
Groundworks
5.0(
8
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Congress, AZ and surrounding areas

Approved (Corporate)

In business since 2000

Free estimates

Warranties offered

"Alex and Donavan were very thorough. Discovered more than what we called them for. We originally wanted information on sealing cracks to eliminate cricket infestation coming through cracks in stem wall. We were not interested in repairing foundation rebar which is typical in slab homes in AZ. They were knowledgeable and honest in their evaluation of our home."
Basement Waterproofing
Basement Waterproofing
Basement Waterproofing
Basement Waterproofing
Crawl Space

+22

138 neighbors recently requested a quote
Avatar for City Plumbing & Rooter AZ, LLC
City Plumbing & Rooter AZ, LLC
5.0(
6
)
Basement Drainage Channels - Install

Serving Congress, AZ and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"I had a serious mainline backup at my home in Sedona and reached out to City Plumbing and Rooter—and I’m really glad I did. They showed up exactly at the time we scheduled, which I appreciated right away. They quickly got to work, snaking the line to clear the blockage and then doing a camera inspection to make sure everything was fully cleared and flowing properly. That extra step gave me a lot of confidence that the problem was actually fixed and not just temporarily pushed through. They were professional, knowledgeable, and respectful of my home the entire time. Everything was explained clearly, and there were no surprises. You can tell they know what they’re doing and take pride in their work. If you’re dealing with a mainline backup or any plumbing issue in Sedona, I highly recommend City Plumbing and Rooter. Reliable, on time, and thorough—exactly what you want in a plumber."
Walter - Mascott
Cleanouts w/Backflow
Approval from City
Installing Cleanouts
Septic Fix

+3

31 neighbors recently requested a quote
Avatar for B K Ferguson Plumbing LLC
B K Ferguson Plumbing LLC
5.0(
2
)
Basement Drainage Channels - Install

Serving Congress, AZ and surrounding areas

Emergency services offered

Credit card accepted

"Brett arrived on time and replaced my water heater. He was mindful of my dogs in the area and cleaned up. The hot water heater works great. I would definitely hire him again to do my plumbing work. He is honest and upfront you won’t be disappointed!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

Recommended by100%of homeowners
JRs lawn service and hard scape
New to Angi
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Congress, AZ and surrounding areas

Free estimates

Emergency services offered

Warranties offered

I listen closely to my clients' needs and preferences, offering thoughtful solutions that fit both your vision and budget.\nFrom initial consultation to final touches, I maintain clear and consistent communication, keeping you updated every step of the way.\nDon’t just take my word for it—my clients rave about the professionalism, quality, and care I put into every project.

Front yard Hardscape
Front yard Hardscape
Front yard Hardscape
Front yard Hardscape
Basement Waterproofing FAQs, answered by experts

The most expensive foundation repair method is to install helical piers. Helical piers are a type of steel pier used to support sinking foundations in areas with poor soil conditions or deep bedrock. This foundation repair method can cost up to $3,000 per pier, including labor, because of its material and labor-intensive installation process. Total foundation repair costs can easily reach over $20,000 using this method.

“Basement waterproofing” sometimes refers to applying a waterproof sealant to basement walls, in which case you would use a waterproof paint, often made of latex. However, there are many methods you can use to waterproof a basement, including exterior drainage systems, interior drainage systems, dehumidifiers, and more. As such, the materials you use can vary depending on the methods you use.

Ideal humidity conditions generally range from 30% to 50%, with 45% considered optimal humidity for most homes. If your humidity levels drop below that range, you can turn your dehumidifier off. Additionally, suppose the temperature where the dehumidifier is installed falls below 60 degrees Fahrenheit. In that case, it's best to turn it off and unplug it since cooler temperatures can cause the unit's coils to freeze.

Damp proofing and waterproofing are both methods to help keep your basement dry. Damp proofing keeps soil moisture from entering your basement, which is helpful since your basement is underground. Waterproofing, however, keeps both soil moisture and liquid water out of the basement, which is essential, especially if you live in a wet environment. Because it’s more protective, waterproofing typically costs more than damp proofing.

Installing a bathroom in a basement isn’t a project for most homeowners. Many parts—plumbing, electricity, and carpentry—go into this project, each requiring expert-level knowledge and tools. One miscalculation can lead to very expensive repairs. Plus, some homeowner’s insurance might not pay for damages caused by a homeowner DIYing this project. You can protect yourself by allowing the pros to complete this job for you. 

The Congress, AZ homeowners’ guide to basement waterproofing services

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