How to Protect Your Plumbing During a Freeze in Florida

In preparation for one of Jacksonville’s coldest freezes to date, we sat down with our master plumber, who has over 30 years of plumbing experience, to break down what homeowners should know about protecting their plumbing during extreme cold.  

Freezing temperatures like the ones we just experienced are rare in North Florida, which is why they often lead to unexpected plumbing damage. Many homeowners don’t realize there’s an issue until pipes thaw and begin leaking or spraying water later in the day. 

Below are the key lessons homeowners can take away from this recent freeze: 

1. Disconnect All Outdoor Hoses 

One of the most important steps homeowners can take is disconnecting hoses from outdoor faucets. 

Why This Matters:  

• Water left inside a hose can freeze 
• Frozen water expands and can push backward into the faucet 
• This pressure can break the valve or hose bib 
• In some cases, pressure can push back into the line and split the pipe inside the wall  

By simply disconnecting all hoses from exterior spigots before the temperature drops you can avoid this common, but costly mistake.  

2. Allow Outdoor Spigots to Run Slightly 

After disconnecting hoses, outdoor faucets should be opened slightly during freezing temperatures.  

How Much Water:  

• Open the faucet so water flows at about the size of a pencil lead 
• Simply letting a faucet drip may not be enough during extreme cold 

Moving water is less likely to freeze than standing water, especially when temperatures remain below freezing for several hours.  

3. Run Faucets Connected to Attic Plumbing  

Homes with plumbing running through the attic are especially vulnerable during freezing temperatures, especially if the attic is not insulated. Cold air can move through roof vents and quickly lower the temperature in the attic space.  

To help prevent pipes from freezing:  

• Identify faucets connected to plumbing that runs through the attic  
• Open those faucets and allow water to flow at a small, steady stream 
• The flow should be more than a drip to keep water moving through the line  

This reduces the chances of pipes freezing and then bursting, something that can lead to severe ceiling and water damage. 

4. Keep Pool Pumps Running Overnight 

Pool equipment is also vulnerable during freezing conditions. 

Recommendation:  

• Run pool pumps continuously overnight during freezing temperatures  

Moving water helps prevent freezing inside the pump and plumbing lines, reducing the risk of cracked pipes and damaged equipment.  

5. Protect Irrigation and Yard Pumps 

For irrigation systems or yard pumps:  

1. Turn the pump off 
2. Depressurize the system to release trapped water 
3. Cover the pump with one or two thick blankets 

Once pressure is released, there should be minimal water left to freeze. The blankets help insulate the equipment from extreme cold.  

6. Monitor for Leaks After the Freeze 

Many pipe failures and signs of plumbing damage do not appear until temperatures rise, when ice inside the pipe melts and water escapes through the cracks.  

What Homeowners Should Do:  

• Check outdoor spigots and exposed plumbing the next morning 
• Watch for spraying water, pooling, or unusual pressure changes 
• Inspect visible backflow devices and irrigation components  

Preventing Freeze Damage Saves Thousands 

Freezing temperatures may be uncommon in Jacksonville, but when they occur, the damage can be severe. Taking preventative steps like disconnecting hoses, keeping water moving, insulating vulnerable equipment, and monitoring plumbing afterward can save homeowners from burst pipes, water damage, and costly emergency repairs. Preparation now is far easier and less expensive than cleanup later.