How to Insulate Outdoor Faucets to Prevent a Winter Water Catastrophe

Don’t leave your spigots out in the cold this winter

Woman installing foam and plastic faucet cover
Photo: knelson20 / Adobe Stock
Woman installing foam and plastic faucet cover
Photo: knelson20 / Adobe Stock
SKILL LEVEL
Easy
COMPLETION TIME
3 hours
COST
$25–$50
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What you'll need:
TOOLS
  • Wrench
  • Bucket
SUPPLIES
  • Outdoor faucet insulation cover

When it comes to winterizing your home, you probably already take the time to insulate pipes around the garage, turn on the bathtub faucet to drip before a forecasted overnight freeze, and open up cabinets for better warm air circulation. But what about your outdoor faucets? Even freeze-proof faucets are vulnerable to frosty weather, so don’t skip out on learning how to insulate outdoor faucets.

Angi Tip

You should winterize your pipes before temperatures regularly drop to 32 degrees Fahrenheit. Depending on where you live, this could start as early as September.

Caroline Gilbert
Director, Content & Editorial, Angi

Prepping to Insulate Outdoor Faucets

First, to protect outdoor faucets from freezing, you’ll want to check how many outdoor faucets you have so that you can buy the correct number of insulation covers. Then, either head to a local home improvement store or browse online to find the insulation products. One of the easiest and most effective options is a foam insulation cover, but you may also find flexible faucet covers made from waterproof fabric like nylon. Both options may cost about $5 to $10 apiece, so even if you have a few faucets around the house, this DIY project usually costs under $50.

  1. Shut Off Water

    Plumber turning water shut off
    Photo: Toidi / Adobe Stock

    You’ll need to turn off the water supply to your outdoor faucets before you can drain and cover them for winter. The shut-off valve is typically kept somewhere warm where it won’t freeze. Look inside your home in utility closets, a basement, or a crawlspace to find the water shut-off valve for your outdoor faucets.

    The shut-off valve that supplies water to the outdoor faucets typically has a round, wheel-shaped handle, although it could also have a lever handle. Turn the round shut-off valve clockwise until it stops to turn off the water, or turn the lever handle until it is perpendicular to the water supply line.

    If you can’t find the water shut-off valve to your outdoor faucets, call a plumber to help you.

  2. Remove and Store Garden Hose

    Your outdoor faucets may be attached to a garden hose or other attachments, like a hose extender or a hose stand. Remove the hose or other accessories, and let them drip to release any extra water. These accessories shouldn’t be threaded on too tightly, but if you have trouble, you can use a wrench to twist them off. Store these parts away somewhere dry for winter, like a garden shed or garage.

  3. Drain Excess Water

    Woman opening outdoor faucet
    Photo: Visual Vic / Moment / Getty Images

    Now, it’s time to drain the excess water from your outdoor faucets. With the water shut off, turn the handle of each outdoor faucet to the left to open it. Keep a bucket underneath to catch any water. Leave the faucets open for about three hours, which gives them time to release any water left over in the pipes before moving on. You can leave the faucets open all winter.

    Although you do still want to cover freeze-proof faucets with an insulation product, this faucet type shouldn’t require draining. Consider keeping it open to help avoid pressure buildups over winter, but you don’t need to wait three hours to let the faucet drain. If you have a freeze-proof outdoor faucet, feel free to move on to the next step.

  4. Inspect and Repair Faucet

    Before you cover the faucet for winter, now is also a great time to check for damage and make repairs so that the faucet is ready to go when it’s time to start spring gardening. If you notice leaks, cracks, corrosion, or other damage, hire a plumber near you to make repairs before you cover the faucet for winter.

  5. Install the Insulation Product

    Man installing faucet cover
    Photo: Chad Robertson / Adobe Stock

    If you have a foam cover, stretch the rubber loop, which you’ll find inside the cover around the back of the faucet where it meets the wall. Then, place the cover over the faucet. The rubber loop has a string that comes out of the top of the cover. Pull the rubber string to tighten the cover against the wall.

    If you have a flexible cover, it will look like a small drawstring pouch. Place the opening of the cover around the faucet, then pull tight on the drawstring to close it. Repeat for each outdoor faucet around your home. Just remember to turn off each faucet before turning the water supply on and before attaching a hose or turning on the sprinkler system in the spring.

DIY vs. Hiring a Pro

Learning how to insulate an outdoor faucet is a great DIY project, even for beginners. Covers usually cost about $5 to $10 each, and you only need a couple of tools that many people already have at home.

The most difficult part of insulating an outdoor faucet is often finding the right water shut-off valve and inspecting and repairing any damaged faucets. If you need help with either of these tasks, it’s best to leave it to a plumber to avoid costly water damage. Hiring a plumber costs about $50 to $200 per hour.

Frequently Asked Questions

Yes! Outdoor faucet covers work by enclosing the faucet with a thick, insulating material that will keep the faucet warmer than outdoor temperatures. They need to be sealed tightly against the house to work properly, though, so be sure to tighten the rubber strap or drawstring on the insulation cover to best protect your faucets.

Freeze-proof faucets can still benefit from insulation, and they will need covers if you live somewhere with extremely cold winter temperatures. These faucets work with a design that keeps excess water in the pipes inside the home to minimize the risk of freezing, plus a downward slope for any water flowing through the pipes to keep moving. But keeping a cover on all faucets, even freeze-proof fixtures, is the best way to avoid frozen and burst pipes.

No, you shouldn’t wrap a towel, old T-shirt, or other porous fabric around your faucets. These materials absorb water, which can make your faucet more likely to freeze. Instead, you want to use waterproof, insulative covers that can seal tightly around the spigots for the best protection against frozen outdoor faucets and pipes.

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