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Best basement waterproofing pros near Longboat Key, FL

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

Avatar for Advanced Environmental Services- Florida
Advanced Environmental Services- Florida
4.6(
245
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Longboat Key, FL and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"Our experience with this company has been great! We have used their services in the past and was very, very pleased with the work they did for us. Because we were so satisfied with their services, we reached out to them once again to take care of our exterior waterproofing and termite problem. As always, their professionalism is above par. They solved our issues in a timely, thorough and affordable manner. I highly recommend their services to others."
Response time7 hrs
Response rate100%
15 neighbors recently requested a quote
Avatar for Alpha Foundations
Alpha Foundations
4.3(
216
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Longboat Key, FL and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2002

Free estimates

Warranties offered

"I had multiple tunnels made by an armadillo under my house concrete slab that went as far as 22 feet. I needed these to be pressure filled before having a new concrete patio poured. They were able to get the job scheduled quickly and completed on time. Blake and Coop (may be spelled wrong) did a professional job. I would highly recommend this company to anyone in need of foundation repair work."
Protect Your Concrete Before & After
Protect Your Concrete
Lift Your Uneven Concrete
Protect Your Concrete
Lift And Stabilize Your Concrete

+10

Response time1 day
105 neighbors recently requested a quote
Recommended by81%of homeowners
Avatar for BULLFROG MOLD AND WATERPROOFING LLC
BULLFROG MOLD AND WATERPROOFING LLC
5.0(
5
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Longboat Key, FL and surrounding areas

In business since 2025

Free estimates

Emergency services offered

"Our neighbor's yard slopes down towards our house. So water kept gathering around our foundation and leaking through after rain storms. This caused mold problems inside. Bullfrog waterproofed the foundation and installed a French drain system with catch basin drains to help move water away from this area of our yard. They also handled the mold and water restoration work on the inside at the same time. Thanks again for taking care of everything for us at a difficult time."
Foundation Waterproofing
Foundation Waterproofing
Foundation Waterproofing
Foundation Waterproofing
Foundation Waterproofing

+29

Avatar for Advanced Environmental Services - Gulf Coast
Advanced Environmental Services - Gulf Coast
4.5(
241
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Longboat Key, FL and surrounding areas

In business since 2015

Free estimates

Emergency services offered

"Had a great experience with this company! Estimate and scope of work was clear, the price was fair, and Bryce and Jose went above and beyond to reroute my dryer vent inside of an interior wall and away from the waterproofing area! Definitely would recommend"
Response time3 hrs
Response rate100%
Recommended by96%of homeowners
Showing 1-10 of 40
Basement Waterproofing FAQs, answered by experts

Yes, it’s worth it to repair a crawl space foundation, even if the issue seems relatively minor. Foundation problems often get worse and more expensive to fix if you leave them untreated. Additionally, your entire home, from the framing and flooring to the roof system, relies on the foundation for even and level support. Issues with your foundation will almost always manifest as problems in and above your living space, so it’s important to find a solution.

A leak under your foundation from a water supply line or sewage line is likely to lead to water pooling on certain areas of your property during rainfall, abnormally fast-growing or green grass in certain sections of your lawn, and differential settlement of your foundation, which can result in large foundation cracks, windows and doors failing to operate properly, a wavy or sloping roofline, or damages or irregularities in your interior walls, including cracks and bulging. If it’s a plumbing line embedded in your slab, you’ll also likely notice above-average water bills.

Regular inspections, proper drainage management, and ensuring soil stability help prevent future settlement issues.

Proper drainage prevents water damage, mold growth, and foundation settling, protecting your home’s structural integrity.

Crawl space foundation problems can stem from a few different issues, but the most common are moisture and water problems and soil instability. Moisture and water issues are often a result of poor drainage, which can lead to water intrusion and soil expansion and contraction, leaving your foundation under added stress. A few things can cause soil instability, including poor drainage, karst landscapes and resulting sinkholes, and poorly compacted soil during construction.

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

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