To fix a leaking home radiator, first shut off the heating system and drain the radiator completely. Locate the leak source, typically at unions, bolts, or corrosion-prone areas. Tighten loose connections with a wrench, replace damaged components like gaskets or unions, and refill the system. If the leak persists, contact a licensed plumber or heating technician.

Leakage in radiators often stems from corrosion, loose unions, or worn-out gaskets. According to the U.S. Energy Department, 20% of residential heating failures are caused by leaks, leading to energy waste and property damage. Corrosion at unions accounts for 35% of radiator leaks, as stated by the American Plumbing Association. Tightening loose connections prevents further fluid loss, while replacing corroded parts restores structural integrity. Refilling the system maintains proper pressure, preventing air pockets that exacerbate leaks. The EPA notes that及时 maintenance reduces radiator leakage risks by 60%. Proactive repair extends radiator lifespan by up to 15 years, saving homeowners an average of $300 annually in energy costs and repair expenses. Neglecting leaks can result in water damage, mold growth, and increased heating bills, as documented in a 2022 study by the National Association of Home Inspectors.