When temperatures drop in Northeast Iowa, frozen pipes can go from a minor inconvenience to major water damage fast. The good news: a few simple steps can dramatically lower your risk. And if a pipe does freeze, acting quickly (and safely) can help prevent a burst.
Below is a homeowner-friendly guide to prevent frozen pipes, spot the warning signs, and know exactly what to do if you suspect a freeze.
Need help right now? Geerts Plumbing & Heating offers 24/7/365 emergency plumbing service in New Hampton and surrounding areas. Call (641) 381-5435.
Why frozen pipes are such a big deal
When water freezes, it expands. That expansion can create pressure inside your plumbing lines, especially in tight, uninsulated areas, and may lead to:
- Cracked pipes or fittings
- A full burst pipe when the ice plug thaws
- Hidden leaks behind walls or under floors
- Costly cleanup and restoration
The goal is to prevent freezing in the first place, and to reduce pressure if a freeze happens.
Where pipes freeze most often
Frozen pipes usually happen where plumbing is exposed to cold air or drafts, including:
- Pipes in exterior walls
- Crawl spaces, basements, attics
- Garages (especially where a line runs to a hose bib or utility sink)
- Cabinet plumbing under sinks on outside walls
- Seasonal lines to outdoor spigots, sprinkler systems, or outbuildings
Pro tip: If a room feels colder than the rest of the home, the plumbing near that area may be at higher risk.
Frozen pipe prevention checklist
1) Insulate exposed plumbing
- Add foam pipe insulation sleeves on pipes in crawl spaces, basements, and garages.
- Insulate around penetrations where pipes pass through walls.
2) Seal drafts and cold air leaks
Cold air moving across pipes can freeze them quickly. Seal:
- Gaps around plumbing penetrations (under sinks, in basements/crawl spaces)
- Rim joist areas and crawl space access points
- Drafty windows near plumbing lines
3) Protect outdoor plumbing
- Disconnect garden hoses.
- Shut off and drain outdoor faucet lines if you have an interior shutoff.
- Consider faucet covers for extra protection.
4) Keep the thermostat consistent
If you’re trying to save energy, it can be tempting to turn the heat way down overnight or when traveling. A safer approach is to keep the home at a steady, reasonable temperature so plumbing stays warm.
5) Know where your main water shutoff is
If a pipe bursts, shutting off water quickly is step one. Take 2 minutes now to locate:
- Your main water shutoff valve
- Your water meter shutoff (if applicable)
What to do during extreme cold
Let warm air circulate
- Open cabinet doors under sinks (especially on exterior walls)
- Keep interior doors open so warm air can reach plumbing
Let vulnerable faucets drip
If you’re dealing with prolonged cold or strong wind chills, a slow drip can keep water moving through at-risk lines. Focus on:
- Faucets far from the water heater
- Fixtures near exterior walls
- Plumbing in cold rooms or over crawl spaces
Avoid shutting off heat to unused rooms
Closing vents and doors can make some rooms cold enough to freeze pipes even if the rest of your home feels comfortable.
Signs a pipe may be frozen
Watch for these red flags:
- Little or no water from a faucet (especially one fixture only)
- Frost on visible pipe sections
- Strange odors from a drain (a frozen line can block venting)
- Bulging pipe sections or visible cracks (urgent)
If you suspect a freeze, move to the steps below.
What to do if your pipes freeze
Step 1: Turn on the faucet
Open the affected faucet slightly. This helps relieve pressure and gives melting ice somewhere to go.
Step 2: Shut off water if you think a pipe may be damaged
If you see swelling, cracking, or any leak, even a small one, shut off the main water supply and call a professional.
Step 3: Apply gentle heat
Use safe heat sources like:
- A hair dryer (move slowly along the pipe)
- A heating pad (wrap around the pipe)
- A space heater placed safely to warm the area (never too close to combustibles)
Important: Do not use a blowtorch, propane heater, or open flame. That’s a serious fire risk and can damage pipes.
Step 4: Start thawing near the faucet and work backward
If you can access the frozen section, start closer to the open faucet and work toward the colder section. Keep checking for leaks as the ice melts.
Step 5: Call for help if you can’t locate or safely access the freeze
If the frozen line is behind a wall, under a floor, or you can’t thaw it safely, it’s time to call.
For emergency frozen pipe service in New Hampton: call Geerts Plumbing & Heating at (641) 381-5435.
If a pipe bursts: do this immediately
- Shut off the main water supply
- If safe, turn off electricity to any affected area (standing water + outlets = danger)
- Open faucets to relieve pressure and drain remaining water
- Use towels/buckets to control active leaking
- Call for emergency plumbing service
Even if the water stops quickly, you may still have hidden damage that needs professional repair.
After the thaw: prevent it from happening again
Once things are flowing again:
- Inspect visible piping for cracks, bulges, or dripping joints
- Dry damp areas quickly (fans + dehumidification help)
- Add insulation and seal drafts where the freeze occurred
- Consider a professional assessment if freezes are recurring—sometimes rerouting or adding heat protection is the best long-term fix
Need a local plumber in New Hampton, IA?
Geerts Plumbing & Heating is local, experienced, and ready to help with:
- Frozen pipe diagnosis and safe thawing
- Burst pipe repair and leak detection
- Winterization and plumbing inspections
- Water heater and general plumbing repairs
Call (641) 381-5435 or contact us online for 24/7/365 emergency plumbing service.
FAQ
How cold does it have to be for pipes to freeze?
Freezing risk increases when temperatures stay below 32°F, especially with wind and poor insulation. Pipes in drafts or unheated spaces can freeze even when the thermostat is on.
Should I drip faucets overnight?
If you have plumbing in an exterior wall, crawl space, attic, or other cold area, a small drip can help reduce freezing risk during extreme cold.
Can I thaw frozen pipes with a torch?
No—open flames are dangerous and can damage pipes. Use gentle heat like a hair dryer or heating pad instead.
What if only one faucet has no water?
That often points to a localized freeze in that fixture’s supply line—still important to address quickly.
If my pipes thaw, am I in the clear?
Not always. Small cracks can leak later. Check for moisture and consider a professional inspection if you suspect damage.
