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TRUSTED BY SIESTA KEY, FL HOMEOWNERS

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

Find Basement waterproofing pros in Siesta Key

Avatar for Advanced Environmental Services- Florida
Advanced Environmental Services- Florida
4.6(
244
)
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%
15 neighbors recently requested a quote
Avatar for Alpha Foundations
Alpha Foundations
4.3(
214
)
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
122 neighbors recently requested a quote
Recommended by82%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."
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Additional Photos
Additional Photos
Recommended by93%of homeowners
Showing 1-10 of 37
Basement Waterproofing questions, answered by experts

A crawl space is an area under the house that provides access to plumbing, electrical, heating ducts, and other HVAC units. Its purpose is to create a buffer between the ground and the living area, helping with ventilation, moisture control, and access for maintenance or repairs. Crawl spaces are most often seen in houses in North America which are built on concrete foundations versus other parts of the world where buildings are constructed differently.

No, you don’t want your crawl space to be wet because water and even moisture in the air under your home can attract insects and rodents, decrease your indoor air quality, increase your energy bills, promote mold growth, and even lead to structural damage. If you notice any signs of water or humidity in your crawl space, you should get the issues addressed immediately by contacting a professional. They can remove moisture and will know how to waterproof your basement to prevent ongoing problems.

External pressure on the basement wall can cause it to bow inward. Soil, heavy with water saturation, is commonly the main culprit. The soil exerts immense pressure on the wall, causing it to fail, at least partially. This is known as hydrostatic pressure—these situations can occur after rainfall or simply due to regular groundwater presence and may be temporary or more permanent.  

The purpose of crawl space encapsulation is to prevent mold by blocking moisture and reducing humidity. If the vapor barrier is properly installed, it significantly reduces the chance of mold developing within the crawl space. However, mold can sometimes grow behind the encapsulation material, but it will be sealed away from the main area. Additionally, moisture can still condense inside the encapsulated space, so if you notice excess humidity, installing a dehumidifier is recommended to prevent mold and mildew growth.

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.

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.