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Hurricane Plumbing Prep Checklist for SW Florida

Jan Harris, Ironclad Plumbing • (Updated September 11, 2026) • 5 min read

To prepare your plumbing before a hurricane, find and test your main water shutoff valve, protect any exposed pipes and fixtures, plan for clean water, and know how to stop a sewer backup before the storm arrives.

Hurricane season in Southwest Florida runs from June through November. Homes in Naples, Bonita Springs, Fort Myers, Marco Island, and Cape Coral all sit close to the coast, with sandy soil and a high water table that make flooding and sewer problems more likely during heavy rain and storm surge. A little prep before the storm can save you from a bigger mess after it.

This is a checklist, not a sales pitch. Most of the steps below cost nothing and take a few minutes. Where a pro makes sense, we say so plainly.

Start With Your Main Water Shutoff Valve

Your main shutoff stops water from flooding your home if a pipe breaks or a fixture cracks during the storm. It is the single most useful thing to know how to work before a hurricane. Find it, and make sure it actually turns.

In most local homes the main valve is near where the water line enters, often by the meter at the street or on the side of the house. On slab-on-grade homes it may be along an exterior wall. Turn it off, then back on, so you know it moves and reseals.

Why might a home’s main water shutoff valve fail to turn when it’s actually needed?

Older valves seize up. Hard water in Southwest Florida leaves mineral buildup, and a valve that has not been touched in years can freeze in place or snap when you force it. Corrosion on older galvanized lines makes this worse.

Test yours before the storm, not during it. If the handle will not budge, or if it drips after you turn it, do not muscle it. Call a plumber to replace it on a calm day. If you find a bigger issue with the line itself, our water line repair team can look before hurricane season gets busy.

Hurricane seen from space

Protect Pipes, Fixtures, and Your Water Heater

Wind, flying debris, and power loss all put stress on your plumbing. Clear the yard of loose items that could break an outdoor spigot or hose bib. Wrap or cover exposed pipes where you can.

If flooding is a real risk at your home, know where your water heater sits. A tank heater in a garage or low area can be damaged by floodwater. Turn off power to an electric heater or gas to a gas heater if water is coming in. Do not wade into standing water near live electrical connections.

Should I fill tubs and containers with water before a storm?

Yes. Fill bathtubs, clean jugs, and pots before the storm hits. If the water supply is cut or contaminated, stored water covers drinking, cooking, and flushing. Water in a tub can be poured into the toilet tank to flush when service is down.

Know Your Sewer Backup Risk

Heavy rain and storm surge can overwhelm the sewer system. When that happens, water and sewage can push back up through the lowest drains in your home, often a shower or floor drain. Homes on older clay, Orangeburg, or cracked lines are more exposed because groundwater already gets in.

This is one area local homeowners often overlook. If your home has had slow drains or past backups, get the line checked before the season. Our sewer repair crew can camera the line and tell you honestly whether it needs work or just watching.

What is a sewer backwater valve, and does it help during storm surge or heavy rain?

A sewer backwater valve, also called a backflow valve, is a device installed on your main sewer line. It has a flap that lets waste flow out but closes if water tries to come back in. During heavy rain or surge, that closed flap keeps the public system from backing up into your house.

It is not a cure-all. It protects against sewage flowing backward, but it does not stop surface flooding or a broken pipe. For low-lying homes in Cape Coral, Marco Island, and parts of Naples, it can be worth asking about. We will tell you if your setup would benefit or if it would not do much for your situation.

Plan for Clean Drinking Water

After a storm, tap water may be under a boil notice or cut off entirely. Keep bottled water on hand, and store enough for several days per person. City water customers should watch for boil-water advisories from their utility.

Should well water be tested after a hurricane before drinking it?

Yes. If your home is on a private well, flooding can push bacteria, sand, and other contaminants into the water. The high water table here makes that more likely. Do not assume the water is safe just because it looks clear.

After a hurricane, use bottled or boiled water until your well is tested. Get a bacteria test before you go back to drinking straight from the tap. Testing kits are available through the county health department, and a plumber can help you shock-chlorinate the well if needed.

What to Do If Plumbing Floods or Backs Up During a Storm

If a drain backs up or a pipe bursts while the storm is going, shut off the main water valve first. That stops fresh water from adding to the problem. If sewage is backing up, stop running water anywhere in the house, including toilets and washers, so you are not pushing more into the system.

Stay out of contaminated standing water when you can. Keep people and pets away, especially near electrical outlets or panels. Take photos for your records once it is safe.

When it is safe to reach us, call. Storm damage often needs fast attention, and our emergency plumbing team handles backups and breaks across Southwest Florida. We come out to fix the problem, not to sell you things you do not need.

Frequently Asked Questions

When should I do this checklist?

Early in hurricane season, ideally before the first named storm, then again if a storm is forecast. Testing your shutoff valve and checking your sewer line are best done on calm days, not when a storm is hours away.

Can I install a backwater valve myself?

It is not a simple do-it-yourself job. The valve ties into your main sewer line and often requires permits. Have a licensed plumber assess and install it so it works when you need it.

What if my main shutoff is at the meter and hard to reach?

Many homes have a second shutoff closer to the house. Ask a plumber to point out the valve you should use, or to add an accessible one so you are not digging at the street during a storm.

Is bottled water enough, or do I need to store more?

Store both. Bottled water for drinking and filled tubs or jugs for flushing and washing. Plan for several days without service, since crews across the region get stretched thin after a major storm.

If you want your plumbing checked before the next storm, call Ironclad Plumbing at (239) 289-4860. We will give you a straight answer, no pressure and no upselling, so you know exactly where your home stands.

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Jan Harris

Owner & Licensed Plumber, Ironclad Plumbing

Jan Harris founded Ironclad Plumbing in 2019 with a simple mission: provide Southwest Florida homeowners with honest, non-commission plumbing service. With over 15 years of hands-on plumbing experience, Jan and his team serve Naples, Bonita Springs, Fort Myers, Marco Island, and Cape Coral.