St. Augustine Drainage Specialists
Drainage Contractor in St. Augustine, FL
NDS-certified yard, foundation, and storm-surge drainage for St. Augustine homes. Engineered for the lowest elevations in Northeast Florida, tidal flooding in Davis Shores and Lincolnville, salt air that destroys cheap hardware, and a water table that sits inches below the surface near the marsh and the bay. Schedule 40 PVC underground, channel drains, sump systems. Owner Albert Urbank scopes every St. Augustine project personally.
Why St. Augustine Homes Need Engineered Drainage
St. Augustine is one of the lowest-lying, most flood-exposed places to own a home in Northeast Florida. The historic city sits at the edge of the Matanzas River, the bay, and tidal marsh, and neighborhoods like Davis Shores and Lincolnville have flooded repeatedly during major storms. Add a water table that sits just under the surface and salt air that eats cheap metal, and drainage here has to be engineered, corrosion-aware, and built for the tide.
Tidal Flooding and Storm Surge
When the tide and surge run high, the city storm system cannot discharge and water backs up into the streets and yards. Homes near the water need drainage designed for both rain and a rising bay. We plan discharge points, and where it is warranted, check valves and sump systems, so your yard is not relying on a storm drain that is already underwater.
The Lowest Elevations in the Region
Much of St. Augustine sits only a few feet above mean sea level. Flat, low ground sheds water slowly, so a normal afternoon storm ponds and sits against foundations. Engineered surface and subsurface drainage gives that water a designed, fast path off the property.
High Water Table Near the Marsh and Bay
Close to the Intracoastal, the San Sebastian River, and the marsh, the water table sits inches below the surface. A gravity-only drain has nowhere lower to send water. We design with sump basins and pumps where the elevation will not allow a clean gravity discharge.
Salt Air and Corrosion
St. Augustine's salt air destroys cheap fasteners and undersized hardware fast. We spec corrosion-resistant materials throughout, the same standard we use on the barrier islands, so the system survives the coastal environment instead of rusting out in a few seasons.
Historic Homes With No Drainage
The old homes in the historic district and Lincolnville were built long before modern drainage. Original foundations show efflorescence, damp crawlspaces, and softening mortar once water starts moving against them. We re-establish positive slope and add perimeter French drains where the lot and the historic-review rules allow.
Anastasia Island and Vilano Sandy Lots
Island lots look like they should drain because the soil is sandy, but low elevation and a high water table mean they still pond and still push water at the slab. We engineer the discharge to a controlled outlet rather than assuming the sand will handle it.
What We Install in St. Augustine
- Schedule 40 PVC underground downspout drains. Rigid-wall, smooth interior, full pressure-rated, corrosion-proof. The pipe outlasts the home in a salt environment.
- Virgin HDPE perforated French drains. Wrapped in geotextile sock fabric, set in a gravel envelope. We never install recycled corrugated black pipe because it warps and silts up within a few seasons.
- Sump pump systems and basins. For low yards and crawlspaces near the marsh and bay where the water table is high and gravity alone will not move the water.
- Channel drains and catch basins. Heavy-duty grates flush with concrete for low driveways, garage entries, pool decks, and walkways, tied into a buried discharge line.
- Check valves and backflow protection. Where tidal backflow is a factor, so the bay cannot push water back up your discharge line.
- Corrosion-resistant hardware throughout. The coastal-spec standard so salt air does not destroy the system.
Our St. Augustine Drainage Process
On-Site Assessment with Owner Albert
Albert Urbank, the owner, walks the property with you. He notes the high and low points, where water sits after a storm, how close the tide line and marsh are, where the downspouts currently discharge, and where the water can legally and practically go. St. Augustine walks always factor in tide and elevation, not just rainfall.
Engineered Plan
You get a written plan with pipe materials, depths, discharge points, slope spec (1% minimum on solid pipe), backflow and sump support where needed, and the install timeline. No verbal estimates. No surprises mid-job.
Historic Review and County Coordination
Work in the historic district may fall under architectural review, and any work in the right-of-way needs city or St. Johns County coordination. We confirm whether your install requires notification before any digging and handle the documentation at no charge.
Install
Most St. Augustine jobs are one to three days on-site. We photograph the lines before backfill, restore the surface, and lay sod back in strips. We never start without Sunshine 811 utility locates, which matters on these old streets where the utilities are not always where the maps say.
Flood Test and Walkthrough
Before we leave, we run a flood test under hose volume to confirm every line drains, every grate sits flush, every cleanout opens, and any sump or check valve cycles correctly. You get install photos for your records.
Stop watching the tide creep toward your St. Augustine home
Free on-site drainage assessment for St. Augustine homeowners. Honest plan, no upsell, no pressure.
Get a Free QuoteSt. Augustine Neighborhoods We Serve
Davis Shores
One of the most flood-exposed neighborhoods in the city, sitting low on Anastasia Island between the bay and the marsh. Homes here need drainage built for the tide, which usually means buried discharge, backflow protection, and sump support.
Lincolnville
Historic homes on low ground near the San Sebastian River that have flooded in major storms. Fixes pair perimeter French drains with downspout rerouting that keeps water off original foundations, planned around historic-review rules.
Historic Downtown and North City
Old structures with original masonry and no modern drainage. We re-establish slope and route downspouts away from the buildings while respecting the architectural review process.
Anastasia Island and Crescent Beach
Sandy island lots that still pond because of low elevation and a high water table. We engineer the discharge to a controlled outlet and spec corrosion-resistant hardware for the salt environment.
Vilano Beach and the North Beaches
Barrier-island homes between the ocean and the Intracoastal with salt exposure on both sides. Coastal-spec materials and engineered discharge are the standard here.
St. Augustine Shores and South County
Larger inland lots in St. Johns County with mixed grade and standing water in the low areas. Engineered swales, dry wells, and buried mains give the property a designed path to a legal discharge point.
Frequently Asked Questions
Why does St. Augustine flood so easily?
St. Augustine sits at some of the lowest elevations in Northeast Florida, right against the Matanzas River, the bay, and tidal marsh. When the tide and surge run high, the storm system cannot discharge, so rain has nowhere to go and water backs up into yards and streets. Neighborhoods like Davis Shores and Lincolnville have flooded in major storms. Engineered yard drainage gives your property its own fast path for water.
Can drainage protect my St. Augustine home from tidal flooding?
Within reason. We design discharge away from the most exposed grade and add check valves and sump systems where the tide is a factor, so the bay cannot push water back up your line. No yard system stops a major surge event, but the right design handles the high-tide-plus-rain events that pond most St. Augustine yards today.
Does salt air affect drainage materials?
It destroys cheap hardware fast. We spec corrosion-resistant materials throughout, the same coastal standard we use on the barrier islands, so the system survives the salt environment instead of rusting out. Schedule 40 PVC and HDPE pipe are not affected by salt at all.
My lot is sandy. Do I still need drainage?
Often, yes. Sandy soil drains vertically, but low elevation and a high water table near the marsh mean the sand fills up and water still ponds and still pushes at the foundation. We engineer the discharge to a controlled outlet rather than assuming the sand will handle the volume.
What pipe do you use underground in St. Augustine?
4-inch Schedule 40 PVC for solid mains and virgin HDPE for slotted French drain runs. We do not install recycled corrugated black pipe because it warps, gets crushed by equipment, and silts up in coastal soil within a few seasons.
Do you handle historic-district drainage work?
Yes. Work in the historic district may fall under architectural review. We confirm whether your install requires notification before any digging, plan the routing to respect the structure, and handle the documentation at no charge.
Quick Answers
Ready to fix your drainage in St. Augustine?
Call Albert directly at 904-304-3199 or request a free on-site assessment online.
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