As temperatures start to drop across New Hampshire, it’s time to ensure your plumbing system is ready for the chilly months ahead. Winters in our region can range from damp autumn rains to deep freezes and heavy snow, particularly testing pipes, drains, and water heaters.

1️⃣ Insulate Exposed Pipes

Pipes located in unheated areas like crawlspaces, garages, or exterior walls are prone to freezing. Use foam pipe insulation or heat tape, especially near hose bibs and outdoor faucets. Even a small gap can cause a burst.

Pro Tip: Check for drafts around foundation penetrations and sill plates—sealing them improves both plumbing and energy efficiency.

2️⃣ Disconnect Outdoor Hoses & Drain Lines

Leaving a hose attached traps water, which can freeze and split the pipe inside your wall. Remove hoses, shut off exterior spigots from the inside, and drain irrigation systems before the first hard freeze.

3️⃣ Test Your Sump Pump

New Hampshire's snowmelt and heavy rain can follow a deep freeze. Ensure your sump pump is ready by pouring a bucket of water into the pit to confirm it activates, and cleaning the discharge line that drains away from your foundation.

4️⃣ Service Your Water Heater

Cold water makes your water heater work harder. Schedule a flush to remove sediment and check the anode rod for corrosion. A well-maintained unit runs efficiently, providing hot water consistently.

5️⃣ Protect Indoor Comfort & Air Quality

With heating on full time, indoor air dries out. A licensed plumber or HVAC professional can help integrate a whole-home humidifier or balance your HVAC’s ventilation, preventing cracked seals, static shocks, and sinus irritation.

6️⃣ Know Where Your Main Shut-Off Valve Is

If a pipe bursts, quickly shutting off your main water supply can minimize damage. Make sure everyone in your household knows its location and operation.

7️⃣ Schedule a Winter Plumbing Checkup

Professional winterization isn’t just for vacation homes. A pre-season inspection can identify small leaks, loose fittings, or under-insulated lines before temperatures drop. This ensures peace of mind that your home is prepared for winter hazards.

Bottom line: New Hampshire winters bring freeze–thaw stress, heavy snow, and damp conditions that can turn minor plumbing issues into major repairs. A few hours of prep now can save you thousands in emergency services later.