Aluminum Flood Barriers in St. Petersburg

Hammerhead™ aluminum flood planks, custom-sized to your openings, built in the USA, and ready to deploy before the next storm.

USA-Made | 5,000+ Projects | Sourcewell & TIPS contracts | Free Property Assessments

St. Petersburg’s low-lying, water-surrounded geography makes it one of Florida’s most flood-exposed cities. Homes near Tampa Bay, the Gulf beaches, and the tidal inlets face repeated surge and heavy-rain flooding, and ground-level doorways and garages are the first to take on water.

The Hammerhead™ Aluminum Flood Plank System

Hammerhead protecting window

Hammerhead is a stop-log flood barrier with permanent U-Channel posts mounted on either side of an opening, and rigid aluminum planks slide in and tighten down to create a watertight wall when a storm is coming. Between storms, the planks store compactly and the low-profile posts stay in place.

  • Custom-sized to every opening: doorways, garages, lanais, loading bays
  • 6063 T-6 extruded aluminum plus stainless steel hardware: corrosion-resistant, USA-made
  • Patented SureGasket™ + AlumiSeal™: dual sealing for a tight, watertight seal
  • Rated to about 6 ft with center-post extensions for wider spans
  • Deploys in minutes by unskilled labor; planks slot in and clamp down
  • Built for high wind and debris: fixed posts and clamped planks handle the stresses coastal storms bring

 

For protection above plank height, on larger openings, or around an entire perimeter, Flood Barrier Systems offers a full line of complementary products.

PREPARE IN ADVANCE

Get St. Petersburg storm-ready before hurricane season

The best time to plan flood protection is before a storm is named. Hammerhead posts install once and stay in place, so when a warning is issued your planks slot in and tighten down in minutes, no scramble for sandbags, no last-minute contractors.

  • Assess early: book a free property assessment.
  • Install posts now: the permanent posts go in on a calm day, not the day before landfall.
  • Store planks on-site: compact storage keeps everything ready to deploy.
  • Deploy fast: slot, tighten, and clamp when a storm approaches.

 

Waiting until a storm is in the forecast often means limited availability. Preparing in advance means you are protected the moment you need it.

WORK DIRECTLY WITH THE MANUFACTURER

Made by the people who engineer it

Flood Barrier Systems is Garrison Flood Control. That means direct access to the team that designs and manufactures Hammerhead: expert product guidance, genuine parts and seals, professional installation by our Florida team, and fast delivery from our regional Pompano Beach, Florida warehouse.

EXPLORE THE FULL FLOOD PROTECTION LINE

More than flood planks: complete protection for St. Petersburg Properties

Hammerhead aluminum planks are ideal for doorways, garages, and lanais. Some properties also need to protect sloped ramps, larger openings, or an entire perimeter. Flood Barrier Systems offers a full range of flood protection products, all from one manufacturer:

Mayim Flood Barrier™: a modular, interlocking barrier for large-scale protection of buildings, roadways, and industrial facilities. Units are available in 20”, 30” and 40” of protection.

YellowFIN

YellowFIN™ Flood Panels: a refined composite flood panel system with sealed aluminum framing for openings where appearance and performance both matter.

Mako

MAKO Inflatable Flood Barrier: Create a strong, reliable seal across entryways in minutes with a marine-grade inflatable flood barrier.

BlueFIN

BlueFIN™ Interconnecting Flood Wall Barrier: a modular flood panel wall for perimeter protection around homes, utilities, and infrastructure, built to resist hydrostatic and hydrodynamic pressure.

Guppy

Guppy™ Heavy-Duty Water-Filled Barrier: a reusable, water-filled barrier for fast, temporary protection of larger areas and infrastructure.

Stingray Self-Rising Water Dam: a localized dam that activates automatically as floodwaters rise, with no power or manual setup required.

Oyster

Oyster™ Self-Rising Flood Gate: a water-activated gate for sloped garage ramps, driveways, and loading docks that lies flat for everyday access and rises automatically as floodwater fills it, with no power required.

Serpent Flood Barrier: Quickly create a flexible line of defense with a durable, air-filled flood barrier built to protect larger openings and perimeter areas.

Minnow Water-Activated Sandbags: Build a fast, reliable flood barrier with lightweight sandbags that expand on contact with water.

Not sure which system fits your St. Petersburg property? Our team can recommend the right product, or the right combination, during a free assessment.
LOCAL FLOOD CONTEXT

Flood risk in St. Petersburg, Pinellas County

Hurricane Helene’s 2024 storm surge pushed water into coastal and waterfront neighborhoods across Pinellas County, flooding ground floors in areas like Shore Acres. The event was a stark reminder that surge can inundate homes well away from the open Gulf.
Much of St. Petersburg falls within FEMA AE and VE zones across coastal and waterfront neighborhoods, with flooding driven by AE and VE zones across coastal and waterfront neighborhoods. Many St. Petersburg properties in AE and VE zones carry NFIP requirements and elevation-certificate considerations; a documented barrier can be part of your flood plan. Confirm with your county or insurance for NFIP specifics.
LOCAL PROOF

Hammerhead projects near St. Petersburg

Across the Tampa Bay area, Garrison’s Hammerhead systems protect ground-level openings against the surge and heavy-rain flooding that Helene made so visible.
Case Study
Process

How it works in St. Petersburg

1. Free assessment: we measure your openings and evaluate flood exposure across the Tampa Bay area

2. Custom quote: the right number of planks and posts for each opening.

3. Professional installation: our Florida technical team installs, or supports your DIY install.

Protect your St. Petersburg property before the next storm Free assessment. USA-made Hammerhead planks. Ready when you need them.

FAQs

Do you install flood barriers in St. Petersburg?
Yes, Garrison provides professional installation across the Tampa Bay area including St. Petersburg and surrounding Pinellas County, and ships nationwide from our Florida warehouse.
When should I get flood barriers for my St. Petersburg home?
Before hurricane season if possible. Posts install ahead of time so planks deploy in minutes when a storm approaches. Request a free assessment to plan early.

How high can Hammerhead protect?

Standard protection is up to about 6 ft, customizable by the number of planks, with center posts for wider spans. For deeper water we offer additional Garrison systems.

What areas of St. Petersburg do you serve?
We serve Shore Acres, Snell Isle, the Old Northeast, Coquina Key, Riviera Bay, and Downtown and the wider Pinellas County area.
Do you serve St. Petersburg and Pinellas County?
Yes. Our Florida team assesses and installs across St. Petersburg and the surrounding Pinellas County area.
How fast can barriers deploy before a storm?
With posts already installed, Hammerhead planks slot in and tighten down in minutes, so there is no scramble when a warning is issued.