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Best basement waterproofing pros near Key Largo, FL

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Top-Rated Basement waterproofing pros in Key Largo - Updated Nov 2026

Avatar for Groundworks
Groundworks
5.0(
73
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Key Largo, FL and surrounding areas

Approved (Corporate)

In business since 2002

Free estimates

Warranties offered

"Javiâ s Zack and Jon were extremely professional efficient and answer all my questions, they worked hard and got the job finished very quickly Iâ m overall very satisfied with the experience 10 out 10 would recommend this to anyone who has a crawl space that was not easy to enter and stayed wet !! I no longer have that problem !"
Foundation
Foundation
Foundation
Foundation
Foundation

+13

96 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for GGR quality construction llc
GGR quality construction llc
5.0(
14
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Key Largo, FL and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"I would like to express my most sincere gratitude to this company for the excellent work they performed in replacing the bathroom in my home. From the very first moment, they proved themselves to be highly responsible, punctual, and professional. The quality of their work exceeded my expectations; they paid attention to every detail, and the final result turned out beautifully. Their dedication and commitment to what they do are truly evident. Without a doubt, I recommend them 100%. It is difficult to find people who are this reliable and committed nowadays. Thank you so much for doing such an impeccable job. If you like, my dear, I can personalize this with the name of the company or the person who did the work for you, to make it even more special."
32 neighbors recently requested a quote
Avatar for A&S Paving LLC
A&S Paving LLC
4.3(
75
)
Basement Drainage Channels - Install

Serving Key Largo, FL and surrounding areas

In business since 2012

Free estimates

Emergency services offered

"While I am pleased with the quality of the job, I didn't like the owner trying to add more than I agreed on. I got a call in the am from owner Anthony Stanko telling me he had a canceĺlation. He asked if they could do my driveway that afternoon. I okayed it. He responded, but left once his crew started working. He returned when the 3" layer of asphalt we agreed on, was in place. It was then he tried to sell me an additional layer, saying it would prevent water damage. He offered it for an additional $ 2500 initially, but when I hesitated he dropped the price first to $2000, then $1500, without any negotiating by me. I became suspicious his "am" cancellation called for more asphalt than was needed to do my driveway and felt he was trying to recoup his losses by dumping it on me."
Additional Photos
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Additional Photos

+22

Recommended by83%of homeowners
AAA Waterproof and Painting, Corp.
4.0(
1
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Key Largo, FL and surrounding areas

In business since 2019

Free estimates

Credit card accepted

We're dedicated to providing our clients with the very best in concrete installation and repair for driveways, excavation and waterproofing and a variety of other projects. With over 3 years of industry experience, we take and enormous amount of pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

Response time50 mins
Recommended by100%of homeowners
Showing 1-10 of 17
Basement Waterproofing FAQs, answered by experts

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. 

Make sure you're calling in the right expert to help repair and/or clean your crawl space. A serious issue may require multiple experts that include a local mold remediation pro, an HVAC pro, a foundation pro, and a plumber. You should also consider using a nearby junk removal service to avoid handling debris that could be covered in mold, fungi, rot, or asbestos.

In most cases, yes, because the large majority of basements leak or will have moisture issues at some point, and waterproofing methods can mitigate that risk or eliminate it entirely. Plus, water and moisture issues can be quite problematic, as they can lead to mold growth, rotting of building materials, structural damage, poor indoor air quality, increased electric bills, and other problems.

Yes, professional installers use weather-resistant materials to protect the dish and cabling from environmental damage.

Standing water under your house can threaten its structural integrity. If water pools in your crawl space, it can damage the foundation and the structure above ground, causing wood rot, mold, and other problems. If you have a concrete foundation, standing water under your house can also make your foundation slabs crack.

The Key Largo, FL homeowners’ guide to basement waterproofing services

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