Top-rated basement waterproofing pros.

Best basement waterproofing pros near Maricopa, AZ

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

Avatar for Reddi Services
Reddi Services
4.7(
1,041
)
Basement Drainage Channels - Install

Serving Maricopa, AZ and surrounding areas

Approved

Super Service Award Winner

In business since 1957

Free estimates

Emergency services offered

"The spout in our shower was leaking and we called Reddi Services to perform the repairs. They were at our house within a couple of hours. Matt Mattox was our technician was very professional and did great work. The repair was done quickly with no problems."
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Residential Advantage
2 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Groundworks
Groundworks
5.0(
8
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Maricopa, AZ and surrounding areas

Approved (Corporate)

In business since 2000

Free estimates

Warranties offered

Groundworks is the North America's leading and fastest-growing foundation repair and water management solutions provider. Groundworks is a vertically integrated company with its own manufacturing operations and a world-class software solution, allowing us to serve our customers more effectively. From the first phone call to the annual maintenance offered, our customers have peace of mind knowing we're there with one mission to repair, protect and improve their home. For state licenses visit Groundworks.com/licensing

Basement Waterproofing
Basement Waterproofing
Basement Waterproofing
Basement Waterproofing
Crawl Space

+22

131 neighbors recently requested a quote
Avatar for Plumbing Masters LLC
Plumbing Masters LLC
4.2(
352
)
Basement Drainage Channels - Install

Serving Maricopa, AZ and surrounding areas

In business since 2006

Free estimates

Emergency services offered

"Plumbing Masters is my #1 go to for all things water in my home! They are a professional, down to earth, and honest company! It is hard to find someone you trust in this business, as we all know about being oversold on things we might not really need.... Not with Plumbing Masters. They are honest and will do their best to save you money, but fix your problem! I highly recommend them! Also, super quick response time... I did not have to wait days without being able to use my shower! One last thing that sets them apart from their competition... they are "real" people. Check out their Instagram page to meet the owner and some of their employees!"
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+41

Recommended by80%of homeowners
Avatar for MagCor Construction
MagCor Construction
4.8(
24
)
Basement Drainage Channels - Install

Serving Maricopa, AZ and surrounding areas

In business since 1985

Free estimates

Emergency services offered

We are a proud, family owned and operated company, here in the valley and in the same location since 1986. With professionalism, pride and integrity, we produce outstanding, long lasting results at the lowest competitive prices. You will be working directly with a Father and Son team from our very first consultation, until the very end. Unlike other companies, we never use any sub-contractors, making sure you know our quality workmanship is consistent throughout your project. And because we are so sure of the quality we put into each job, we offer unbeatable guarantees on everything we do. We wont stop working until you love what we've done. We assure you that giving us the opportunity to work on your home or business, will be a pleasant,completely stress free experience. We are the very friendly, trustworthy gentleman you would want in your home. Choose the reputable business that's been in the same location for over 25 years with flawless records since day one. Please give us a call today for your free, no pressure quote. We will always come out at a time that's convenient for you.

Recommended by100%of homeowners
Thornton Plumbing & Water Treatment LLC
4.4(
41
)
Basement Drainage Channels - Install

Serving Maricopa, AZ and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"After flushing the toilet, my sewer backed up into the shower. I called Thornton Plumbing from the Angie's List magazine. Kris arrived promptly. He unclogged the main line explaining to me exactly what he was doing and why he was accessing it from the roof. I had a similar problem 5 years previously, but the rotor rooter person who came was not that thorough or neat. Kris explained to me how the plumbing was probably installed under the house. Kris impressed me with his thoroughness so I asked him questions about my tankless water heater. Kris said it should be cleaned at least once or twice a year. It was installed two years ago and I had never had it cleaned so Kris said he could do it on this visit. Once again he did an excellent job, explaining to me what he was doing, and what I could do to make the job easier the next time. Two weeks later, my sink next to the toilet plugged up. I called Thornton Plumbing again and they said they would send Kris between 2-4 PM that day. However, Kris was detained on other jobs and never arrived. Brent called me about 4:30 PM and explained Kris was detained. Brent said he was at the office and he was willing to come out and fix the problem, but it would take him about an hour to arrive. I had taken the day off work so I could be at home when they arrived, so I asked Brent to come out. Brent did not arrive until 7 PM, two hours later. We were both tired by that time. The work they did was always very professional. I did feel that the second problem should probably have been solved on the first visit. Brent said he would not charge me for the extra service trip. I will call them again, but I will ask them to be sure and let me know if there is any chance they won't be able to make the scheduled time. I have to take off work to be home for repair people, and it was upsetting when Brent did not arrive until 7 PM."
Recommended by97%of homeowners
Avatar for A-1 Concrete Repair & Waterproofing, LLC
A-1 Concrete Repair & Waterproofing, LLC
4.2(
5
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Maricopa, AZ and surrounding areas

In business since 2017

Free estimates

Warranties offered

Our company was built on hard work, honesty, and integrity and we are proud to service our neighbors here in the valley of the sun. \n\nWe offer an array of professional concrete repair, foundation stem repair, and waterproofing services that include basement waterproofing, retaining wall waterproofing, balcony deck waterproofing, etc.\n\nHere at A-1 Concrete Repair & Waterproofing, we combine good old-fashioned customer service with modern experience and equipment. Giving you the peace of mind and reassurance that your concrete repair or waterproofing project will get completed right the first time around.

Foundation Stem
Foundation Stem
Foundation Stem
Foundation Stem
Foundation Stem

+4

Response time3 days
Response rate97%
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Basement Waterproofing FAQs, answered by experts

If you don’t wish to dig it out and convert it into a finished basement, you can still encapsulate your crawl space to protect it from damage for an average cost of $5,500. Finishing a crawl space beyond this isn’t really worthwhile, as the low ceilings mean you won’t be able to use the area as living space.

The best basement waterproofing method depends on the specific issue causing the water intrusion. For minor problems, simple solutions like installing a properly functioning gutter system to direct runoff away and grading the soil to slope away from your foundation can be effective.

If you have more significant water problems, the solution will need to be more robust:

  • For standing water on the basement floor, a floor drain or a sump pump system may be the best solution.

  • For water pooling around the foundation, installing an exterior French drain can intercept water before it reaches the basement walls.

Other effective waterproofing methods, which can be used depending on your home's specific needs, climate, and soil type, include sealing the interior walls, landscape alteration, installing interior drainage systems, and using a dehumidification system to control moisture levels.

Water damage always poses a primary risk of mold and mildew, but growth is not guaranteed. The chances of mold developing depend on several factors, including the severity of the damage and how quickly the area is cleaned and dried. To prevent mold, you must act quickly—ideally within the first 24 hours. Clean up all water and thoroughly dry the affected area. If the damage is extensive, you were unable to address it immediately, or you suspect mold has already started to grow, it is best to assume it is present and hire a professional mold inspector or removal expert to assess the situation.

It is better to have a crawl space that is tailored to the outside temperature, your needs, and the season. For example, it is much better to have a vented space when it’s very hot outside and your AC bills are sky-high. Conversely, when the temperature drops and humidity rises, it is almost always better to have your vents shut and covered if possible.

The cost of basement waterproofing is $4,950 for the average homeowner. However, you could end up paying between $600 and $14,000, depending on factors like basement size, waterproofing method, and the region you live in. 

If you live in an area with heavy rainfall, you might be paying more for waterproofing than if you lived somewhere drier since waterproofing contractors would be in high demand. Likewise, a 500-foot basement costs between $2,500 and $5,000 to waterproof, but that price rises significantly for a larger basement.

The Maricopa, AZ homeowners’ guide to basement waterproofing services

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