Water in the house in Port St. Lucie? Shut off the main, then call.

What should you do first when water is spreading in a Port St. Lucie home?

Close the main water valve, then keep people and pets out of standing water that touches outlets, cords or the air handler. Cut power to the wet area only if the panel is dry and easy to reach. Next, photograph the damage, lift valuables off wet floors and call so a crew can start extracting and drying.

Find the shut-off before you need it. On a slab home the main is usually at the meter box near the street or the front of the lot, with a second valve where the line enters the house; every property is different, so look now and check that the handle actually turns. A tank water heater has its own cold-water valve on top, and toilets, washers and sinks each have a small valve nearby.

• Stop the source: the main for a split line, the valve on the heater for a tank leak, the supply valve behind a toilet or washer, or the A/C switch if the air handler is dripping.
• Keep clear of power: stay out of any room where water reaches outlets, a panel or a pump until the power is off.
• Document it: photos and short videos of every wet room, taken before anything is moved or thrown away.
• Lift what you can: boxes, rugs and electronics off wet floors, with foil or blocks under furniture legs.
• Hold off on demolition: wet drywall and flooring are judged with meters, so leave them in place until the crew has taken readings.

Why do so many Port St. Lucie homes get wet in the same few ways?

Most of the city was laid out in a hurry on flat, low land and then built in waves. Older block-and-stucco homes sit on slabs beside canals, newer ones sit beside stormwater ponds, and a large number still use septic. Each build era has its own usual leak, and the humidity makes all of them worse.

The General Development Corporation bought the River Park tract and about 40,000 acres along the North Fork of the St. Lucie River in 1958, platted quarter-acre lots and sold them by mail, then dug canals to drain the land and create waterfront lots. Those 1960s and 1970s lots are the old part of Port St. Lucie, and many of the single-story block homes on them have lines, roofs and drains that are decades old. About 17,380 homes in the city and its service area are still on septic, because the city took over the utility only in 1994 and requires new buildings to connect.

The newer pieces behave differently. St. Lucie West was started by Core Communities in the early 1990s, and Tradition is an 8,300-acre master-planned community of mostly 21st-century slab-on-grade block homes with lakes and ponds that hold stormwater instead of canals. Southbend Lakes and the Becker Road corridor are growth-era neighborhoods on city utilities. In those, the usual calls are roof and window leaks, supply-line failures and A/C condensate overflows rather than septic trouble. The water damage restoration page ties these causes together, and the areas we cover show which kind of neighborhood is which.

Why do water problems around Port St. Lucie follow the calendar?

Roughly two thirds of the year's rain falls between May and October, and hurricane season runs from 1 June to 30 November. So summer brings roof and window leaks and A/C overflow, September brings the wettest weather, and winter brings plumbing and appliance failures. Humidity keeps mold a year-round concern, and the EPA advises drying wet materials within 24 to 48 hours.

On NOAA's 1991 to 2020 normals for Fort Pierce, annual rainfall is about 53.5 inches, around 35.8 inches of it from May through October, with September the wettest month at about 7.8 inches. Hurricanes Frances and Jeanne both came ashore on this stretch of coast in September 2004, and on 19 September 2024 news reports described storms dropping roughly 2 to 4 inches in an hour on parts of Port St. Lucie, flooding roads near Port St. Lucie Boulevard. Treat the table as a rough guide rather than a forecast, and watch the National Weather Service Melbourne warnings for this county.

How fast does wet material have to dry in Florida humidity?

The EPA advises drying water-damaged materials within 24 to 48 hours to limit mold. That is a guideline, not a deadline. Mold can start in warm, humid conditions even when a surface looks dry, so the crew measures moisture inside block, drywall and subfloor and keeps dehumidifiers running until readings reach the dry goal.

Fans alone do little in damp air, because air that is already full of moisture cannot take much more from a wet wall. That is why drying in this climate leans on dehumidifiers, and why closed-up rooms with the A/C on and the equipment running dry faster than open ones. Read more on the structural drying page.

Do not take a dry-looking surface as proof that nothing grew underneath. Mold may have started in materials that dried inside it, and a musty smell after the drying is finished is worth reporting. If the smell or a stain persists, a mold inspection can look for the cause.

Who fixes what once the water is out?

The crew handles extraction, drying and cleanup, and can stop or contain the water, tarp or board an opening and document the damage. A licensed plumber fixes the pipe or water heater, a roofer replaces the roof, and a septic company deals with the tank and drain field. Rebuilding walls and floors afterward is quoted separately.

Florida treats these jobs differently. Mold remediation above about 10 square feet is a licensed activity through the Florida Department of Business and Professional Regulation, and the same person or company generally cannot both assess and remediate one structure within 12 months, so a mold test and the cleanup come from separate companies. Rebuilding after water damage generally needs a Florida-licensed contractor, and you can look any contractor up on DBPR's licence search.

Insurance is the other half of the question. A homeowners policy often covers sudden and accidental water damage and usually does not cover long-term leaks, flood or sewer backup unless an endorsement was added. Check your policy for a separate hurricane deductible, call your insurer early and keep the crew's photos and readings. For the difference between flood and homeowners cover, see the guide on flood vs homeowners insurance.