How to Protect Your Pittsburgh Pipes from Freezing This Winter

Every winter, Pittsburgh plumbers respond to hundreds of burst pipe emergencies. Water damage from a single burst pipe can cost $5,000 to $70,000 to repair. The good news? Frozen pipes are almost entirely preventable with the right preparation.

Why Pittsburgh Pipes Are Especially Vulnerable

Pittsburgh's freeze-thaw cycles are brutal on plumbing. Temperatures can swing from the 40s to well below zero within days, and many homes in neighborhoods like Lawrenceville, Shadyside, and Squirrel Hill were built 80–100 years ago with pipe routing that doesn't account for modern insulation standards.

Pipes in unheated spaces — crawl spaces, garages, exterior walls, and unfinished basements — are the most vulnerable. When water freezes inside a pipe, it expands and creates enormous pressure. The pipe doesn't always burst at the ice blockage; it often fails downstream where the pressure builds up.

7 Steps to Protect Your Pipes Before a Freeze

1. Insulate exposed pipes

Pipe insulation foam sleeves cost a few dollars at any hardware store and are the single most effective prevention. Focus on pipes in unheated areas: basement, crawl space, garage, and any pipes running along exterior walls. Pay special attention to pipe joints and bends where heat escapes fastest.

2. Seal air leaks near pipes

Cold air drafts accelerate freezing. Check for gaps around pipes where they enter your home through exterior walls or the foundation. Seal gaps with expanding foam or caulk. Even a small draft can drop the temperature around a pipe enough to cause freezing.

3. Keep your thermostat above 55°F

Never let your home's interior temperature drop below 55°F, even when you're away. If you're traveling during winter, this is non-negotiable. The cost of keeping your heat on is nothing compared to the cost of a burst pipe and water damage cleanup.

4. Open cabinet doors

On extremely cold nights, open the cabinet doors under kitchen and bathroom sinks — especially those on exterior walls. This lets your home's warm air circulate around the pipes. It's a simple trick that makes a real difference when temperatures drop below 20°F.

5. Let faucets drip

When a hard freeze is forecast, let both hot and cold faucets drip slightly — especially faucets served by pipes running through unheated spaces. Moving water is much harder to freeze than standing water. You don't need a stream; a slow, steady drip is enough.

6. Disconnect outdoor hoses

Before the first freeze, disconnect all garden hoses from outdoor faucets. Shut off the interior valve that feeds the outdoor spigot (if you have one) and open the outdoor faucet to drain any remaining water. A frozen outdoor faucet can cause the pipe to burst inside your wall.

7. Know where your main shut-off is

If a pipe does burst, the faster you shut off the water, the less damage you'll have. Make sure every adult in your household knows where the main water shut-off valve is and how to operate it. In most Pittsburgh homes, it's in the basement near the front of the house where the water line enters.

What to Do If Your Pipes Freeze

If you turn on a faucet and only a trickle comes out, you likely have a frozen pipe. Here's what to do:

• Keep the faucet open. As the ice melts, water needs somewhere to go. Running water also helps melt the blockage.
• Apply gentle heat. Use a hair dryer, heat lamp, or towels soaked in hot water on the frozen section. Never use a torch or open flame.
• Check all faucets. If one pipe froze, others may have too. Check every faucet in the house.
• Call a plumber if you can't locate the freeze. If the frozen section is inside a wall or you can't access it, don't try to thaw it yourself — call a professional.

When to Call Astrada Services

Call us immediately if:

• A pipe has already burst and water is flowing
• You can't locate where the pipe is frozen
• The frozen pipe is behind a wall or under the floor
• You smell gas (a frozen gas line is a separate emergency — evacuate and call 911 first)

We provide 24/7 emergency plumbing service across Pittsburgh and surrounding areas. Our trucks carry the parts and equipment to handle burst pipe repairs in a single visit. Call us at (412) 539-2837 any time, day or night.