Get matched with top basement waterproofing pros in Longboat Key, FL

Q: What is the best ventilation for a crawl space?

• <div><p>The best ventilation for a crawl space is a fully encapsulated crawl space with its own separate ventilation system. If you go this route, ensure you have the proper <a href="https://www.angi.com/articles/your-crawl-space-built-todays-standards.htm">crawl space code requirements</a> done and dusted before encapsulating your crawl space with a moisture barrier and installing appliances that may not be up to the proper specs. </p></div>

Q: How do you know if you have a leak under your foundation?

• <div><p>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&rsquo;s a plumbing line embedded in your slab, you&rsquo;ll also likely notice above-average water bills.</p></div>

Q: What are the different basement waterproofing methods?

• <div><p>Many prevention methods can be used individually or in combination to waterproof your basement. Some of the most common waterproofing methods include:</p><ul><li><p>Using dehumidifiers </p></li><li><p>Silicate concrete sealers</p></li><li><p>Vapor barriers </p></li><li><p>Baseboard channels </p></li><li><p>Drain tile systems</p></li><li><p>Waterproofing paint</p></li><li><p>Drainage systems</p></li><li><p>Epoxy injection</p></li><li><p>Interior French drains</p></li><li><p>Exterior excavation and waterproofing</p></li><li><p>Cement waterproofing</p></li><li><p>Weep tiles</p></li><li><p>Liquid membrane</p></li><li><p>Sheet membrane </p></li><li><p>Yard grading</p></li><li><p>Gutters and downspouts</p></li></ul><p></p></div>

Q: What causes a basement wall to bow?

• <div><p>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&mdash;these situations can occur after rainfall or simply due to regular groundwater presence and may be temporary or more permanent. </p></div>

Q: What is the safest insulation for basement walls?

• <div><p>Rigid foam board insulation is one of the safest insulation materials for basement walls. The panels offer a moisture barrier to prevent mold and mildew build-up. At the same time, this material is also fire-resistant, so you don&rsquo;t have to worry as much about a fire breaking out as you would with spray foam insulation. </p></div>

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Verified Reviews for Basement Waterproofing pros in Longboat Key, FL

*The Angi rating for Basement Waterproofing companies in Longboat Key, FL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

*The HomeAdvisor rating for Basement Waterproofing companies in Longboat Key, FL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

Last update on July 15, 2024

Reviewed in July 2024
Dave Brown and his son came out and gave us a fair estimate for waterproofing part of our basement for water in the pump and watersoftener area. Upon further investigation while having the water tank and softner system moved, realized we had a leak coming in from behind the tank due to a...
Stay Dry Basement Waterproofing, Inc.
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Reviewed in May 2024
Manasota Builders Juan Guzman I give Manasota Builders and the owner Mr. Guzman a top score of excellent. Read further if interested in the magnitude of the rated project and the variety of skills it required. The project required the correction of severe rainwater intrusion through a 2nd...
Manasota Builders Inc.
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Reviewed in October 2023
Northern Epoxy was a very good choice for putting in beautiful and colorful floors in our garage and basement. People in our condo community have admired the job and no one said a negative comment. The benefit of this upgrade is well worth the cost. The employees were always on time, and...
Northern Epoxy Pros LLC
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Reviewed in February 2022
Excellent work, very professional and timely. We hired them to replace a subfloor and waterproof vinyl flooring in a mobile home. The results were even better than expected. In addition, they were able to do the job in a very timely manner. Their response time was better than many contractors I...
MFI Flooring Installation
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Reviewed in September 2021
The men working on basement did so in record time. They arrived when they said they would and kept us informed of progress. We would like to thank foremen Darren Sharp, Robet Robley, and Dylan Asbury for there expert help.
Foundation Recovery Systems
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Reviewed in January 2021
I had them do some work on my basement project. Their sub-contractors were excellent and that work is great. The plumbing, electrical, and tiling have been excellent. However, the coordination and communication were poor and they had an attitude. The drywall work is not well done. Their...
SKLS Group L.L.C.
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Reviewed in September 2020
We purchased this house in 2015 and had our basement waterproofed in 2016. We have since refinished our basement with peace of mind we will have no water damage in our basement. It was money well spent. We would recommend Ohio State Waterproofing to anyone wanting worry free and dry basements.
Ohio State Home Services, Inc.
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Reviewed in January 2016
Despite restrictions by our property mgr., Perfection submitted all required documentation and showed up on time on the date specified. They removed the polypebble surface from our small deck, and, weather permitting, will return to apply waterproofing stain. They cleaned up my downstairs...
Perfection Pressure Washing
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Reviewed in February 2014
We have had water issues in our basement for over 12 years. We have had cracks filled, drain tile, back-up sump pumps etc. Fernando was the first contractor who actually figured out our water problem and could explain it to us. We felt so lucky to find him. He is punctual, reliable,...
A-Proseal Water Proofing
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Reviewed in August 2010
Working with Charlie was a great experience. He provided an alternative to one of the other floor dealers and saved me a lot of money. His workers were pleasant and helpful. They moved my washing machine and dryer and reattached it. The flooring is beautiful and made a big difference in the the...
Bella Casa Floor & Home Fashions, LLC
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Find Basement waterproofing pros in Longboat Key

Advanced Environmental Services- Florida

4.6(

244

)

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

Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Longboat Key, FL and surrounding areas

Approved

In business since 2019

Free estimates

Customers say: Quick response

"Dedicated Professionals and made sure our leak was taken care of."

Response time1 day

2 neighbors recently requested a quote

Recommended by93%of homeowners

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."

+10

Response time1 day

122 neighbors recently requested a quote

Recommended by82%of homeowners

Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Longboat Key, FL and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"Highly recommend the company and Freddie the plumber. I had a big problem and he did a very good job."

4 neighbors recently requested a quote

Recommended by90%of homeowners

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JW Solutions LLC

New to Angi

Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Longboat Key, FL and surrounding areas

Approved

Hi, I’m Jay White. I’ve proudly lived in Charlotte County for 45 years. I’m a perfectionist who takes pride in doing things right the first time. I believe in honest work, clear communication, and delivering results my customers can feel confident about.

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BULLFROG MOLD AND WATERPROOFING LLC

5.0(

)

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."

+29

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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

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The Surfin’ Plumbers, Heating & Cooling (FL)

4.5(

994

)

Basement Drainage Channels - Install

Serving Longboat Key, FL and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"Tim arrived, was very friendly, performed services rapidly. He informed me of the poor quality of the new water & recommended (with no pressure) a water filter or softener to correct the problem. Tim was outstanding!"

Recommended by89%of homeowners

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CULTIV8 LANDSCAPE SERVICES

4.7(

242

)

Basement Drainage Channels - Install

Serving Longboat Key, FL and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"It is nice to have Jay for this project, the water held in my lawn is a big headache and Jay was able to help me with that. It is a little bit over the budget, but I think it is good. I had my drainer installed and replace the lawn for the place where the drainer is. I hope the lawn will be better than before. Jay is very nice, he answer the phone call and replies to the text message all the time."

+154

Recommended by94%of homeowners

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Atlantis Water Services, Inc.

4.5(

)

Basement Drainage Channels - Install

Serving Longboat Key, FL and surrounding areas

In business since 1946

Free estimates

Emergency services offered

"Every time it rains our side lot floods. We hired them to install a drainage system. The were quick and the price was right."

Recommended by95%of homeowners

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Showing 1-10 of 40

Basement Waterproofing questions, answered by experts

The best ventilation for a crawl space is a fully encapsulated crawl space with its own separate ventilation system. If you go this route, ensure you have the proper crawl space code requirements done and dusted before encapsulating your crawl space with a moisture barrier and installing appliances that may not be up to the proper specs.

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.

Many prevention methods can be used individually or in combination to waterproof your basement. Some of the most common waterproofing methods include:

Using dehumidifiers
Silicate concrete sealers
Vapor barriers
Baseboard channels
Drain tile systems
Waterproofing paint
Drainage systems
Epoxy injection
Interior French drains
Exterior excavation and waterproofing
Cement waterproofing
Weep tiles
Liquid membrane
Sheet membrane
Yard grading
Gutters and downspouts

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.

Rigid foam board insulation is one of the safest insulation materials for basement walls. The panels offer a moisture barrier to prevent mold and mildew build-up. At the same time, this material is also fire-resistant, so you don’t have to worry as much about a fire breaking out as you would with spray foam insulation.

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.

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