Manchester, N.H. – Late-winter temperature swings are triggering pipe failures across New Hampshire homes just ahead of spring.
Plumbing experts say the period between winter cold and early spring warmth is one of the most damaging times for residential plumbing. When temperatures rise above freezing during the day and fall again overnight, pipes weakened by winter freezing expand and contract repeatedly, increasing the risk of cracks and leaks.
In cities such as Manchester and Concord, where many homes were built decades ago, older plumbing systems are especially vulnerable. Pipes located in basements, crawl spaces, attics, and exterior walls often develop hairline fractures during winter that remain hidden until water pressure increases later in the season.
Many pipe failures appear when homeowners reconnect outdoor hoses, turn on irrigation systems, or increase water use after months of reduced flow. Common warning signs include fluctuating water pressure, damp spots near walls or ceilings, corrosion or discoloration on exposed pipes, and outdoor faucets that drip when turned on.
Local plumbers report that early spring consistently brings a surge in emergency calls, with many repairs traced back to winter freeze damage that went unnoticed. As spring approaches, demand for service rises, often leading to longer wait times and higher repair costs.
Younger homeowners and first-time buyers are frequently caught off guard by sudden pipe failures, which can flood living spaces, damage electronics, and disrupt work schedules. Renters may also face temporary displacement when plumbing repairs are required.
Experts recommend inspecting exposed pipes now, testing all faucets for pressure changes, draining and disconnecting outdoor hoses, and insulating plumbing in unheated areas. Addressing pipe stress before steady warm weather arrives can help prevent costly water damage during New Hampshire’s spring transition.
