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Best basement waterproofing pros near Siesta Key, FL

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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon21
    Verified basement waterproofing services reviews

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

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

Serving Siesta 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%
17 neighbors recently requested a quote
Avatar for Alpha Foundations
Alpha Foundations
4.3(
216
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Siesta Key, FL and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2002

Free estimates

Warranties offered

"Alpha Foundations in addition to adding pilars around the exterior and doing a great job, I inquired about concrete foaming. They immediately got me in contact with their concrete foam team Bradley and John. Bradley did a great job and took the time to explain everything to me. I asked how big will the size of the drill hole be and he said M&M size (plain M&M). I am thrilled I got this done and feel safe in my home. It was amazing how the foam raised the slab which raised the kitchen floor and no more gaps between the backsplash and counter."
Protect Your Concrete Before & After
Protect Your Concrete
Lift Your Uneven Concrete
Protect Your Concrete
Lift And Stabilize Your Concrete

+10

Response time1 day
108 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 Siesta 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 Siesta 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
Avatar for Sunset Plumbing and Drains
Sunset Plumbing and Drains
4.7(
18
)
Basement Drainage Channels - Install

Serving Siesta Key, FL and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"George came promptly and professionally assessed our situation. He tested for drain issues, provided guidance to maintain, and helped us avoid large fees with highly professional consultation. I will hire him for more work and recommend this company."
Additional Photos
Additional Photos
Additional Photos
Recommended by93%of homeowners
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Basement Waterproofing FAQs, answered by experts

Anything having to do with the structure of your home, such as raising the ceiling, is usually the most expensive part of finishing a basement. Another project component that could be a surprisingly high expense is adding an exterior entrance. 

The cost of a walkout basement can be anywhere from $5,000 to $35,000.

The best type of basement ventilation system depends on your budget, the moisture in your basement’s air, and the types of windows you have down there. You should consider all of these factors when choosing a ventilation system. However, the most effective method for basement ventilation is an energy recovery ventilator (ERV) or a whole-house ventilation system, which preheats or precools incoming air from the outside while also managing water vapor.

Ductwork sweats due to a temperature difference between the air inside the ducts and the surrounding air, similar to how a cold drink develops condensation in the heat. This sweating is a sign that your HVAC system is not operating at peak efficiency. The best way to keep ductwork from sweating is to wrap it in proper insulation, which also improves your system's energy efficiency. Another option is to close off your crawl space and install a dehumidifier to dry the air and lower its dew point.

Generally, moisture barrier padding costs $0.75 to $1.50 per square foot, varying by brand and mix. That’s a lot more than standard padding, which runs $0.25 to $0.90 per square foot. The price difference between these two options might seem steep, but think of it as insurance against future carpet replacement costs and subfloor damage. If you have pets or kids, that extra investment in high-risk areas like your living room often pays off.

When doing any type of project involving mold, it's important to wear the right protective gear. You'll want an N-95 or KN-95 mask to keep yourself from inhaling mold spores, which can be irritating or trigger an allergic reaction in people with weakened immune systems. You'll also want to wear protective eyewear and gloves to limit your contact with mold.

The Siesta 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.