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Top-Rated Foundation drain installation pros in Key Largo - Updated Nov 2026

Avatar for GGR quality construction llc
GGR quality construction llc
5.0(
14
)
Sump Pump or Interior Foundation Drains - Install

Serving Key Largo, FL and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"I highly recommend this plumbing company! They did an excellent job in my home — very professional, punctual, and respectful. The technician explained everything clearly, fixed the problem quickly, and left the area clean. Their prices were fair, and the quality of work was outstanding. I will definitely use their services again and recommend them to anyone who needs reliable plumbing work. Thank you for such great service! ⭐️🔧💧"
32 neighbors recently requested a quote
Barrett's Plumbing & Septic LLC
5.0(
26
)
Sump Pump or Interior Foundation Drains - Install

Serving Key Largo, FL and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"They came to check our blocked drains within 1.5 hours on a Saturday. They found the problem and cleared it. We were given a choice to continue with the cast iron pipes which could easily become clogged again or they could install PVC pipes from the house to the sidewalk today. They were professional, gave us a quote, and finished the job and cleaned up."
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+26

Recommended by96%of homeowners
Avatar for Fernandez Floor and Bathroom inc
Fernandez Floor and Bathroom inc
5.0(
5
)
Sump Pump or Interior Foundation Drains - Install

Serving Key Largo, FL and surrounding areas

In business since 2015

Free estimates

Emergency services offered

"Mr.Fernandez did excellent work. He had to carry tiles, mud set and grout up a circular stairway and didn't charge extra for that. He leveled the patio so all areas would drain properly- no puddling. His price was very reasonable. Would definitely hire him again. A very conscientious person"
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+38

Recommended by100%of homeowners
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Foundation Drain Installation FAQs, answered by experts

French drains and yard grading systems are two highly effective ways to fix standing water around the foundation. Since the French drain uses a perforated pipe covered by gravel, you won’t have to worry about water taking the soil away from your foundation. Meanwhile, yard grading levels out the ground to prevent water from gathering around your foundation.

The cost to install a new sump pump, including materials and professional labor, typically ranges from $1,000 to $3,000. The average cost is often cited between $1,200 and $2,500. Several factors influence the final price, including the type of pump, the complexity of the drainage system, and the installation location. For instance, installing a sump pump in a basement may cost around $1,200, while a more complex installation in a crawl space can cost an average of $3,900. It is important to hire a licensed professional for the installation to ensure quality work, which can impact the pump's lifespan and warranty. Note that these costs are for a new installation; replacing an existing unit is less expensive, typically costing $308 to $748.

Methods include interior sealants, exterior excavation and waterproofing membranes, sump pump installation, and vapor barriers for encapsulation. Techniques vary based on the structure and severity of moisture issues.

Costs range from $2,000 to $7,000, depending on system type and excavation requirements.

Installing a sump pump takes a bit of know-how, but it is possible to do it yourself. You’ll need to familiarize yourself with details like where sump pump water goes to avoid creating new flooding risks. If you’re doing the work yourself, it’s recommended to bring in a pro for a quick inspection afterward so you can be sure your home is protected from any water damage concerns.

The Key Largo, FL homeowners’ guide to foundation drain installation services

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