Preventing Burst Pipes During a Cold Snap

When that first real Arctic blast rolls through Bucks and Montgomery County, the calls start coming in fast: frozen pipes in Doylestown, water pouring through ceilings in Newtown, and no water at all in older homes around Yardley and Bristol. After more than 20 winters running Central Plumbing, Heating & Air Conditioning, I can tell you this—burst pipes are one of the most expensive and disruptive winter plumbing emergencies you can face, and most of them are preventable with some smart preparation. [Source: Central Plumbing, Bucks County Plumbing Experts]

Whether you’re in a historic stone home near Washington Crossing Historic Park, a newer development in Warrington, or a townhouse near King of Prussia Mall, your plumbing is under serious stress during a cold snap. Pennsylvania winters are unforgiving, and the temperature swings we see can crack even “modern” plumbing if it’s not protected. [Source: Central Plumbing HVAC Specialists]

In this guide, we’ll walk through practical, field-tested steps you can take today to prevent frozen and burst pipes—including what absolutely needs a professional touch. We’ll look at special concerns for older homes in places like Newtown and Warminster, and what owners of newer homes in Blue Bell, Horsham, and Willow Grove should pay attention to as well. Since I founded Central Plumbing back in 2001, our team has seen just about every way a pipe can freeze and fail, and we’ve built this list around what truly works in our local climate. [Source: Mike Gable, Central Plumbing Heating & Air Conditioning]

1. Identify Your Home’s “High-Risk” Pipes Before the Temperature Drops

Know where problems usually start

In our area, most burst pipes don’t happen in the middle of a nicely heated living room. They happen in unheated or poorly insulated spaces—and those are different for each style of home. [Source: Central Plumbing, Heating & Air Conditioning]

Common high-risk locations we see in Bucks and Montgomery County homes:

    Pipes in unheated garages (common in Southampton and Warminster colonials) Plumbing in crawl spaces in older Doylestown and Newtown homes Lines run along exterior walls in kitchens and bathrooms (especially near bay windows) Pipes in unfinished basements in Bristol, Langhorne, and Quakertown Attic plumbing serving second-floor bathrooms or finished attic spaces

If you’re near Tyler State Park or around historic Newtown Borough, chances are your plumbing has been “added onto” several times over the decades. Those additions often used the easiest routes, not the best insulated ones.

How to do a quick risk audit

Walk through your home and look for:

    Any exposed pipes you can see in basements, crawl spaces, and garages Pipes that feel especially cold to the touch in winter Drafty areas where you’ve noticed cold air leaks near plumbing fixtures

Pro Tip from Mike Gable’s Team:

If you’re not sure what’s high-risk, we can do a quick winter-readiness inspection and mark problem spots for you throughout your home. We do this often for homeowners in Yardley, Blue Bell, and Willow Grove as part of broader plumbing service or HVAC maintenance visits. [Source: Central Plumbing, Heating & Air Conditioning]

Once you know where your vulnerable pipes are, the rest of the tips in this guide become much easier to apply.

2. Insulate Exposed Pipes in Basements, Garages, and Crawl Spaces

Why pipe insulation matters so much in Pennsylvania winters

When we hit multi-day cold snaps—single digits overnight, teens during the day—uninsulated pipes in unheated spaces can drop below freezing in just a few hours. That’s when water inside expands and puts tremendous pressure on the pipe walls. [Source: Central Plumbing, Southampton, PA]

In places like Warminster, Southampton, and Quakertown where many homes have partially finished basements or attached garages, we see a lot of burst pipes along foundation walls and ceiling joists that could have been easily protected with basic pipe insulation.

What kind of insulation should you use?

The most effective and homeowner-friendly options are:

    Foam pipe sleeves: Pre-slit, slide over copper or PEX pipes Fiberglass pipe wrap: Good for odd shapes or larger diameter pipes Foil-backed insulation: Adds some protection from drafts and radiant cold

Focus first on:

    Pipes in unheated basements and crawl spaces Lines near garage walls and doors Plumbing near exterior walls, especially in kitchens and bathrooms

What Southampton Homeowners Should Know:

Many homes off Street Road and around Industrial Blvd have a mix of old copper lines and newer PEX. Both can freeze. PEX sometimes survives freezing better, but it’s not a guarantee—insulate all exposed plumbing, not just “old-looking” metal. [Source: Central Plumbing, Heating & Air Conditioning]

If you’re not comfortable working around gas lines or tight crawl spaces—or you’re unsure what you’re looking at—our team can combine pipe insulation with general HVAC and plumbing service so your whole system is protected before the next deep freeze. [Source: Central Plumbing HVAC Specialists]

3. Seal Drafts and Cold Air Leaks Near Plumbing Runs

Cold air is your plumbing’s worst enemy

Even well-insulated pipes struggle if icy air is blowing directly on them. In places like Ardmore, Blue Bell, and older sections of Glenside, we see beautifully renovated interiors…with hidden gaps behind cabinets, in rim joists, or around hose bib penetrations that funnel cold air right onto water lines. [Source: Central Plumbing, Bucks County Plumbing Experts]

Look for drafts:

    Under kitchen and bathroom sinks (especially on exterior walls) Around laundry hookups in utility rooms and basements Near sill plates and rim joists in unfinished basements Around outdoor spigots that penetrate brick or siding

How to seal problem areas

Homeowners can safely tackle:

    Small gaps and cracks: Use caulk or spray foam (carefully) Larger openings: Use foam board or fiberglass insulation plus spray foam around edges Under-sink cabinets: Add foam board on the back wall if it feels very cold

Common Mistake in Blue Bell Homes:

We frequently find renovated kitchens where plumbing was routed into the back of base cabinets along an exterior wall with no insulation behind it. The room feels warm, but the cavity behind the cabinet is basically outdoor temperature. Always check for cold spots behind those lower cabinets. [Source: Central Plumbing HVAC Specialists]

For bigger air-sealing projects—especially in older stone homes near Washington Crossing Historic Park or historic parts of Doylestown—pairing insulation upgrades with HVAC services (like duct sealing and ventilation improvements) gives you both comfort and protection against frozen pipes. [Source: Central Plumbing, Heating & Air Conditioning]

4. Protect Outdoor Faucets, Hose Bibs, and Exterior Lines

Don’t let your outdoor plumbing freeze your indoor pipes

One of the most common burst pipe calls we get after a cold snap in Langhorne, Yardley, and Newtown starts with the same sentence: “It’s just a hose faucet—how bad can it be?” Unfortunately, when an exterior hose bib or sillcock line freezes and bursts inside the wall, you may not see the damage until temperatures rise and water starts pouring into your basement or living spaces. [Source: Central Plumbing, Bucks County Plumbing Experts]

Essential outdoor protection steps

Before each winter:

    Disconnect all hoses from outdoor spigots—even “freeze-proof” ones Shut off interior valves to exterior faucets (if your home has them) Drain the line by opening the outside faucet after shutoff Install insulated faucet covers on every outdoor spigot

If your home doesn’t have interior shutoff valves—for example, many smaller homes in Bristol and older neighborhoods around Willow Grove—consider having us install them. It’s a relatively simple plumbing service that can save thousands in water damage. [Source: Central Plumbing, Heating & Air Conditioning]

ac repair Central Plumbing, Heating & Air Conditioning

Pro Tip from Mike Gable’s Team:

For homes near the river in Yardley and along older streets in Langhorne, we often recommend installing modern frost-free hose bibs with proper pitch and insulation. One visit can eliminate a major freeze risk that causes repeat problems year after year. [Source: Mike Gable, Central Plumbing Heating & Air Conditioning]

If you use irrigation or exterior lines for detached garages or outbuildings, those need to be properly winterized as well—blown out, shut off, and drained before freezing weather sets in.

5. Keep Indoor Temperatures Consistent—Even in “Unused” Rooms

Turning the heat down too far can be an expensive mistake

During cold snaps, we see a pattern: homeowners trying to save on heating bills in places like Warminster, King of Prussia, and Plymouth Meeting turn the thermostat way down at night or when they’re away, only to return to frozen or burst pipes. The short-term savings on your gas or electric bill are completely wiped out by emergency plumbing repairs and water damage. [Source: Central Plumbing, Heating & Air Conditioning]

For Pennsylvania winters, you should:

    Maintain at least 55–60°F throughout the home, even when you’re away Keep interior doors open to allow heat to circulate to bathrooms and laundry rooms Avoid completely closing vents in “unused” rooms—those rooms often contain plumbing in walls or floors

If you’re relying on a single zone heating system in a larger home near King of Prussia Mall or in multi-level townhomes in Blue Bell, uneven heating can leave bathrooms or laundry rooms significantly colder than your thermostat reading.

When smart HVAC upgrades help

A modern HVAC system with:

    Zone control Smart thermostats Better ductwork balancing

…can give you both efficiency and more even temperatures, which directly reduces your frozen pipe risk. [Source: Central Plumbing HVAC Specialists]

Our heating and HVAC services team regularly helps homeowners in places like Horsham, Willow Grove, and Ardmore redesign outdated systems so you’re not choosing between comfort, safety, and energy bills. [Source: Central Plumbing, Heating & Air Conditioning]

What Willow Grove Homeowners Should Know:

Older Cape Cods and split-levels near Willow Grove Park Mall often have temperature swings of 10–15°F between floors. If your upstairs bathroom feels noticeably colder than the rest of the home during a cold snap, your pipes are at higher risk. That’s the time to call for an HVAC evaluation, not after a pipe bursts.

6. Let Faucets Drip and Keep Water Moving During Extreme Cold

Why a slow drip can prevent a major disaster

When the forecast calls for temperatures in the single digits or below zero—especially for multiple nights in a row—it’s time to put some of your plumbing into “freeze protection mode.” In Doylestown, New Hope, and across higher elevation spots of Bucks County, those bitterly cold nights are exactly when we get the panicked calls. [Source: Central Plumbing, Bucks County Plumbing Experts]

Keeping water moving in vulnerable lines reduces the chance of freezing by:

    Preventing water from sitting still and solidifying in tight sections Relieving pressure buildup even if some ice begins to form

How and where to let faucets drip

Focus on:

    Faucets on exterior walls (kitchen sinks, some bathroom sinks) Fixtures above unheated garages or crawl spaces Historically troublesome lines that have frozen before

What to do:

    Turn on both hot and cold taps to a slow, steady drip Start this before the temperature drops below 20°F Keep cabinet doors under sinks open to allow warm air to circulate

Pro Tip from Mike Gable’s Team:

In historic homes near Mercer Museum or along older streets in Doylestown, it’s often impossible to reroute all vulnerable plumbing. In those cases, strategic dripping during cold snaps becomes a critical part of your winter routine. Combine that with insulation and draft sealing for best results. [Source: Central Plumbing, Heating & Air Conditioning]

Remember, a small increase in your water bill during a cold snap is nothing compared to the cost of drywall replacement, flooring repairs, and emergency plumbing service after a burst.

7. Know How to Shut Off Your Water Fast—and Test the Valve Now

In an emergency, every minute counts

When a pipe bursts—whether in a finished basement in Newtown, a second-floor bathroom in Yardley, or a crawl space in Bristol—the first and most important step is stopping the flow of water. That means knowing exactly where your main shutoff valve is and making sure it actually works before you need it. [Source: Central Plumbing, Southampton, PA]

Find and test your main shutoff

Common locations in Bucks and Montgomery County homes:

    Where the water line enters the basement near the front foundation wall Near the water meter in the basement or utility room In slab-on-grade homes (more common in some developments around King of Prussia and Blue Bell), in utility closets or near the water heater

Steps to take now:

Locate the valve and clear a path to it—no storage boxes blocking access. Turn it off and back on again to make sure it’s not seized. Confirm that shutting it off actually stops water flow in the house.

If the valve is hard to turn, leaks, or doesn’t fully stop water, it should be replaced before winter. [Source: Central Plumbing, Heating & Air Conditioning]

Common Mistake in Ardmore and Bryn Mawr Homes:

We regularly find original 1950s or 1960s shutoff valves that haven’t been touched in decades. Homeowners assume they’ll work in an emergency, but when a pipe finally bursts, the handle snaps or the valve won’t budge. Replacing that main valve is a straightforward plumbing service that can save your home from catastrophic water damage. [Source: Central Plumbing HVAC Specialists]

Every member of your household should know where that shutoff is and how to operate it, just like they’d know how to exit during a fire.

8. Winterize Vacant Properties, Additions, and Seasonal Spaces

Extra risk for homes that aren’t fully lived in

In our service area, we see a lot of:

    In-law suites over garages in Warminster and Southampton Finished but seldom-used basements in Newtown and Yardley Vacant or for-sale homes in Bristol and Quakertown Seasonal or part-time residences near New Hope and along the Delaware

These spaces are at very high risk during a cold snap, because the heat is often turned down too low—or even off entirely—and nobody is around to notice a frozen pipe until major damage has occurred. [Source: Central Plumbing, Bucks County Plumbing Experts]

Options to protect little-used spaces

If a space will be unoccupied during winter:

    Keep heat on at a minimum of 55°F—never fully off Fully drain and winterize the plumbing if it will be empty long-term Install smart thermostats and low-temperature sensors that can alert you by phone

Professional winterization typically includes:

    Shutting off and draining water to certain zones Blowing out lines where needed Adding non-toxic antifreeze to some fixtures (toilets, traps)

What King of Prussia Homeowners Should Know:

With many people traveling for work or splitting time between homes, we’re getting more calls from condos and townhomes near King of Prussia where neighbors discover leaks flowing into common areas. If you’re away frequently, talk to us about combining HVAC services, smart controls, and plumbing winterization for peace of mind. [Source: Central Plumbing, Heating & Air Conditioning]

Since Mike founded Central Plumbing in 2001, our team has developed winterization checklists specifically tailored to Pennsylvania’s sharp temperature drops and the construction styles common around Bucks County Community College, Willow Grove Park Mall, and similar neighborhoods. [Source: Mike Gable, Central Plumbing Heating & Air Conditioning]

9. Schedule a Professional Plumbing & Heating Check Before Deep Winter

Preventive care is always cheaper than emergency cleanup

The most effective way to prevent burst pipes is a combined plumbing and heating system check before we hit the coldest part of winter. In places like Doylestown, Newtown, Southampton, and Blue Bell, we see the same pattern: homeowners who do regular maintenance have far fewer emergency calls—even when the thermometer takes a nosedive. [Source: Central Plumbing, Heating & Air Conditioning]

A professional cold-weather inspection from a qualified Bucks County plumber or Montgomery County HVAC specialist should include:

    Inspection of exposed and high-risk piping for insulation and support Evaluation of outdoor spigots, shutoffs, and vulnerable additions Check for past water damage or signs of previous freezing Furnace or boiler inspection to ensure reliable heating during cold snaps Recommendations for pipe rerouting in extreme-risk areas

Our team often pairs furnace maintenance or boiler service with a quick plumbing survey, especially in older homes around Yardley, Warminster, and Willow Grove. That way we’re looking at the entire system that keeps your home safe during winter—not just one piece of it. [Source: Central Plumbing HVAC Specialists]

Pro Tip from Mike Gable’s Team:

The best time to schedule this check is late fall—October or early November—before the first true cold snap hits. Once the deep freezes arrive, our schedule fills up fast with emergency calls, and you never want to be in the “waiting list” when water is pouring through a ceiling.

If you’re already dealing with a partially frozen pipe, a furnace that can’t keep up, or inconsistent heating between rooms, that’s your warning sign to call for professional help now—before a freeze turns it into an emergency. [Source: Central Plumbing, Southampton, PA]

10. What to Do If a Pipe Freezes—or You Suspect It Has

Act fast, but be careful

Even with the best preparation, we still see frozen pipes during the coldest nights in Bristol, Quakertown, and across higher, windier areas of Montgomery County. Early action can be the difference between a minor inconvenience and a major burst. [Source: Central Plumbing, Heating & Air Conditioning]

Warning signs of a frozen pipe:

    Little or no water from a faucet when other fixtures work Frost on visible pipes in basements or crawl spaces Unusual banging or clanking noises when you turn a faucet on

Safe steps you can take

Shut off the water to the affected section or the whole house if you’re unsure. Turn up the heat in your home and open interior doors. Gently warm the suspected area with:
    A hair dryer A space heater at a safe distance (never unattended) Warm towels

Never use an open flame, torch, or propane heater—it’s a major fire risk and can damage pipes. [Source: Central Plumbing, Bucks County Plumbing Experts]

What Newtown Homeowners Should Know:

In older Newtown Borough homes with plaster walls and hidden pipes, you often can’t see the frozen section. In those cases, call us immediately. We use professional-grade thawing equipment and leak detection tools to safely restore flow and check for cracks before turning pressure back on. [Source: Central Plumbing HVAC Specialists]

If a pipe has already burst or you see active leaking:

    Shut off the main water supply Kill power to any affected electrical circuits if water is near outlets or fixtures Call our 24/7 emergency plumbing service—we aim to be on-site in under 60 minutes throughout Bucks and Montgomery County. [Source: Central Plumbing, Heating & Air Conditioning]

Conclusion: Stay Ahead of the Cold—Not Behind the Cleanup

Pennsylvania winters aren’t gentle, and the cold snaps we’ve seen over the past 20+ years can push any plumbing system to its limits—especially in older homes around Doylestown, Newtown, Yardley, Bristol, and the mixed-age neighborhoods of Blue Bell, Willow Grove, and King of Prussia. But with some thoughtful preparation—insulating pipes, sealing drafts, managing your heating system correctly, and knowing how to respond if a line starts to freeze—you can dramatically reduce your chances of dealing with a burst pipe and the thousands of dollars of damage that often follow. [Source: Central Plumbing, Bucks County Plumbing Experts]

Under my leadership since 2001, Central Plumbing, Heating & Air Conditioning has focused on exactly this kind of prevention-first approach. We’re here not just to fix emergencies, but to help you avoid them—whether that means targeted pipe insulation, a thorough winter plumbing and furnace check, or full HVAC and plumbing upgrades in older or renovated homes. [Source: Mike Gable, Central Plumbing Heating & Air Conditioning]

If you’re unsure about the vulnerability of your home—or you’re already seeing warning signs like cold spots, low flow, or furnace struggles during cold weather—don’t wait for the next Arctic blast. A quick call now can prevent a very long, very expensive night later. [Source: Central Plumbing, Heating & Air Conditioning]

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Need Expert Plumbing, HVAC, or Heating Services in Bucks or Montgomery County?

Central Plumbing, Heating & Air Conditioning has been serving homeowners throughout Bucks County and Montgomery County since 2001. From emergency repairs to new system installations, Mike Gable and his team deliver honest, reliable service 24/7.

Contact us today:

    Phone: +1 215 322 6884 (Available 24/7) Email: [email protected] Location: 950 Industrial Blvd, Southampton, PA 18966

Service Areas: Bristol, Chalfont, Churchville, Doylestown, Dublin, Feasterville, Holland, Hulmeville, Huntington Valley, Ivyland, Langhorne, Langhorne Manor, New Britain, New Hope, Newtown, Penndel, Perkasie, Philadelphia, Quakertown, Richlandtown, Ridgeboro, Southampton, Trevose, Tullytown, Warrington, Warminster, Yardley, Arcadia University, Ardmore, Blue Bell, Bryn Mawr, Flourtown, Fort Washington, Gilbertsville, Glenside, Haverford College, Horsham, King of Prussia, Maple Glen, Montgomeryville, Oreland, Plymouth Meeting, Skippack, Spring House, Stowe, Willow Grove, Wyncote, and Wyndmoor.