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TRUSTED BY KEY BISCAYNE, FL HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon18
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Key Biscayne

Avatar for SealProMax New England
SealProMax New England
4.9(
18
)

Serving Key Biscayne, FL and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Excellent job, the total cost charged actually saved me lots compared to the other quotes I was given by other companies. I shopped around a lot for good prices. My basement walls had cracks that went straight onto the floors and water was seeping through. Everything was fixed in one day. They came back after a week to do a follow up to make sure everything was good and dry, which it was. Overall very happy and would recommend them."
Waterproofing Ceiling on the computer room
Four Seasons Hotel Boston
Four Seasons Hotel Boston
Four Seasons Hotel Boston
Four Seasons Hotel Boston

+9

Response time1 day
Recommended by93%of homeowners
Avatar for SealProMax New England
SealProMax New England
5.0(
15
)

Serving Key Biscayne, FL and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"It comes out exactly what I’m expecting. My basement stays dry until now problem solved without the inconvenience of a construction noise in your basement. The duration of the job is very minimal and the price is reasonable. Very professional."
Basement waterproofing
Michael C
Tear C
Graig
Don

+263

Response time2 days
3 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Advanced Environmental Services - Palm Beach
Advanced Environmental Services - Palm Beach
4.6(
244
)

Serving Key Biscayne, 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%
12 neighbors recently requested a quote
Avatar for Alpha Foundations
Alpha Foundations
5.0(
66
)

Serving Key Biscayne, FL and surrounding areas

Approved (Corporate)

In business since 2002

Free estimates

Warranties offered

"I had a crawl space encapsulation done three years ago. The work was professionally done by competent friendly patient professionals willing to answer any and all questions about their work. Most recently I had tech Bradley Innocent conduct the annual inspection of the work, replace the filter in the dehumidifier and survey the property for any potential problems. This young man was professional, efficient, and explained what he was there to do and why. Companies need more competent professionals like him."
Protect Your Concrete Before & After
Protect Your Concrete
Lift Your Uneven Concrete
Protect Your Concrete
Lift And Stabilize Your Concrete

+10

161 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for GGR quality construction llc
GGR quality construction llc
5.0(
12
)

Serving Key Biscayne, 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! ⭐️🔧💧"
22 neighbors recently requested a quote
Avatar for Florida Demolition & Concrete Works Corporation
Florida Demolition & Concrete Works Corporation
5.0(
2
)

Serving Key Biscayne, FL and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

Thank you for choosing Florida Demolition & Concrete Works Corporation as your choice for all your demolition, concrete cutting and paving needs. Servicing the entire state of Florida, we take pride in providing quality service, a strong work ethic, and the peace of mind that only comes with a responsible and coordinated team. We put ethics, safety and communication first, since that will earn us your business moving forward. Give us a call, visit our profile page or book us instantly today!

project photos
6 neighbors recently requested a quote
Avatar for Advanced Environmental Services - Miami-Dade
Advanced Environmental Services - Miami-Dade
4.6(
244
)

Serving Key Biscayne, FL and surrounding areas

In business since 2015

Free estimates

Credit card accepted

"From water in my house, due to Hurricane Milton, and the discovery of cracks on the exterior of my concrete block house â ¦ to a week of digging, grinding, cementing, and waterproofing the slab, the interior walls of two rooms, and fixing cracks in the exterior walls of my house, this was quite an experience! As annoying and disruptive as something like this can and will be, all in all it wasnâ t nearly as bad as I anticipated, mainly due to Brian, the lead. He was informative, asked my opinion, explained why things were done as they were, and went over and above to keep me in the loop. Both he and Corey were respectful and pleasant at all times. As you can imagine, as a woman living alone, it is difficult to have male workers in and out of the house. At no time was I concerned. Yes, this experience was a bit disruptive and I knew it would be â ¦ but it was ever so less painful and disruptive than I thought it would be and I thank Brian for that. And, I no longer have to worry about water in my house from hurricanes. May I also say that the response from this company was exceptional. I entered my information into their website the day after the hurricane hit. Within 15 to 20 minutes, I received a phone call from the CEO. We talked a bit and he made an appointment for the next week. He kept me informed by text as to his arrival time and arrived when he said he would. He told me what the company would do and sent a contract to me which I signed. I was given a start date and it never changed. The work that was done by the team that arrived was what he said would happen. How incredibly refreshing that a company actually did what they say they would do in the timeframe that was set. Thank you again. I hope I am never in the position to need this companyâ s services again. ð But, for anyone else out there who is, I donâ t believe you could do much better than Advanced Environmental Services. Five stars are not enough."
Response time7 hrs
Response rate100%
1 neighbors recently requested a quote
Avatar for K&S Roof Repair and Maintenance Company
K&S Roof Repair and Maintenance Company
4.3(
350
)

Serving Key Biscayne, FL and surrounding areas

In business since 1987

Free estimates

Emergency services offered

"

Roof was originally fixed by another "roofer" when a leak occurred back in December but after two strong storms within two weeks after it was fixed the water leak started up again. Kept waiting for the "roofer" to come for 3 weeks and got fed up before I decided to look for a more reliable roofer which led me to Angie's List.  After going through reviews, Top Seal & KNS Roofing and Waterproofing Services stood out as one of the top 5 companies that have done work close to my area.

What made Top Seal & KNS Roofing and Waterproofing Services stand out was the fact they were 24/7 so I gave Kenny a call to scheduled a appointment. I wasn't expecting to have anyone come by last minute and on top of that being a Sunday but that wasn't the case.

With just one call Kenny already made efforts to fit me into his business schedule for the same day. Kenny made sure a representative from his company would come and was always on top of things to make sure that this occurred.

His partner/foremen/supervisor Al came and checked the roof leak and with just one look knew exactly where the issue was. Al was straight forward with everything and did not give me any "bs" to get me to fix more than what was needed like other companies sales people will normally.

After agreeing on the cost Al immediately setup an appointment to have one of his crew come the next day to fix the leak. Al explained to me what would be done, who to expect to come and when they should arrive. Unfortunately, the following day rained so they couldn't come but Al made sure to let me know once the rain had stopped they would come out to fix and that is exactly what happened the next day.  So far it hasn't rained since they have came to fix the roof but I'm feeling pretty confident that they did a good job.

Kenny also called to make sure everyone was done correctly and ensured me that if there were any problems to just notify them and they will come.

Kenny, Al, and everyone else with Top Seal & KNS Roofing and Waterproofing Services has been very courteous, responsible, truthful, and punctual. Living in Florida and having to deal personally or hear about other peoples experiences with unreliable roofers I'm so happy that I found a honest company like Top Seal & KNS Roofing and Waterproofing Services. I will definitely keep them in my contacts for any future issues I may have and will recommend to others.


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+12

Recommended by88%of homeowners
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Basement Waterproofing questions, answered by experts

Most houses will have vents in the crawl space. This allows for air passage and energy retention, which in many ways can help control the temperature inside the home. If you are able to consider the cost of a crawl space encapsulation, you may not need your crawl space vents at all. 

Proper drainage is the only way to ensure that your crawl space stays dry. Depending on your property and the extent of your issue, you might need to consider a gutter system, a French drain, or sump pumps to avoid and handle water and moisture under your home. Dehumidifiers can also help to prevent moisture from accumulating if you have a high-humidity environment.

A sump pump can be added to an existing basement. To do this, you will need to use a jackhammer or sledgehammer to break up the concrete and dig a pit. You will also need to create a hole in your basement wall to run the discharge pipe through.

Foundation repair uses methods such as underpinning, slab jacking, or application of hydraulic piers. Each technique is chosen based on structural needs, soil conditions, and damage extent, ensuring a stable and secure foundation.

A vapor barrier keeps moisture out of the crawl space, while insulation reduces the amount of unconditioned air—and sometimes moisture—that enters the space. Coupling a vapor barrier with insulation can help prevent humidity and related moisture damage in a crawl space while also making your home more energy-efficient. Just be sure to use insulation that won’t get damaged from moisture, like rigid foam board or expanding spray foam insulation.

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

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