Drainage and Waterproofing St. Petersburg
Drainage and Waterproofing St. Petersburg, FL from Foundation Masters, LLC provides homeowners, condo boards, and commercial property owners with engineer-designed solutions to stop flooding, water intrusion, and soil erosion. As the first engineering firm to pioneer the waterproofing industry in Florida, we deliver permanent systems backed by a lifetime transferable warranty.
Why Drainage and Waterproofing in St. Petersburg Is So Critical
St. Petersburg sits on the Pinellas Peninsula — a flat, low-lying coastal plain with shallow water tables (often just 2–6 feet below grade). Combined with annual rainfall of 50–60 inches and summer storms capable of dumping 3 inches of rain in an hour, flooding and hydrostatic pressure are constant challenges.
High tides can push the water table inland, reducing soil absorption. After major storms, the water table can rise 12–18 inches within hours, bringing moisture into contact with concrete slabs and destroying vapor barriers. You can check your flood risk on the FEMA Flood Map Service Center or the Pinellas County Flood Information Portal.
Because Florida has no statewide waterproofing code, most homes were built with slabs at or near grade. When the water table rises, moisture penetrates slabs, damages finishes, and accelerates structural deterioration.
Signs You Need Drainage and Waterproofing in St. Petersburg
- Standing water or soggy yards after storms
- Tile popping or wood floors buckling from slab moisture
- Water stains or efflorescence along baseboards and walls
- Mildew smell or visible mold near slab edges
- Driveway or parking area flooding that drains slowly
Our Proven St. Petersburg Waterproofing and Drainage Solutions
Foundation Masters developed Florida’s first true engineered waterproofing system to solve these issues. Our process includes:
- Excavating a trench ~12″ below the slab edge to expose the footer and wall.
- Applying the Seal Tight Waterproofing System to protect below-grade concrete and footings.
- Designing engineered drainage piping or sump discharge to safely redirect water away from the home and underlying limestone layers.
- Installing gutters and grading corrections to control surface runoff.
This stops moisture intrusion, prevents soil erosion, and reduces sinkhole risk under St. Petersburg properties.
Parking Lot Drainage and Commercial Waterproofing — St. Petersburg
We also specialize in parking lot drainage system repairs and retrofits — rebuilding catch basins, replacing storm piping, and stabilizing subgrades for shopping centers, HOAs, and industrial sites. Learn more about our parking lot drainage services.
Get a Drainage and Waterproofing Inspection in St. Petersburg
Because Florida lacks a waterproofing code, you need experts who understand local soils, water tables, and coastal pressures. Our engineers provide free inspections and permanent solutions backed by a lifetime transferable warranty.
Call 656-233-7089 for direct help with flooding, moisture intrusion, or drainage system failure.
Frequently Asked Questions — St. Petersburg Drainage and Waterproofing
Why does my yard flood even with drains installed?
St. Petersburg has a high, fluctuating water table and flat grades. After heavy rain or high tide, soils saturate and drains can’t empty because groundwater is already near the surface.
Why is my slab letting moisture through?
Many older homes were built with slabs at grade level. When storms drop ~3 inches of rain in an hour, the water table can rise 12–18 inches and contact the slab, destroying the vapor barrier and wicking moisture through concrete.
Can you waterproof an existing home in St. Petersburg?
Yes. Our Seal Tight System was developed for Florida’s coastal conditions to stop water under hydrostatic pressure and keep slabs dry.
How does this help with sinkhole prevention?
By controlling water and preventing soil washout into limestone voids beneath the Pinellas Peninsula, our drainage and waterproofing systems reduce one of the key triggers for sinkhole collapse.
Do you handle commercial parking lot drainage problems?
Absolutely. We repair and retrofit catch basins, storm pipes, and subgrade failures for retail centers, HOAs, and industrial facilities across St. Petersburg and Pinellas County.
Where can I check my property’s flood risk?
You can use FEMA’s Flood Map Service Center or the Pinellas County Flood Information Portal to view flood zones and local resources.
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