To fix a leaning kitchen faucet, start by shutting off the water supply under the sink. Disassemble the faucet by removing the handle, escutcheon plate, and base screws. Inspect for loose or damaged components, such as a wobbly base or a worn out mounting nut. Tighten the base screws using a wrench or pliers, and realign the faucet with a level tool. If the base is cracked or corroded, replace it. For persistent leaning, apply non-damaging shims under the base to restore stability. Reassemble the faucet and test for smooth operation.

Leaning faucets typically result from improper installation, uneven mounting surfaces, or wear on internal components. A 2022 study by the National Association of Home Builders found that 35% of faucet issues stem from misaligned mounting hardware, with improper leveling being the leading cause of instability. Additionally, a DIY Home Repair Journal survey revealed that 60% of homeowners encounter leaning faucets due to loose screws or a damaged base, which can cause the faucet to tilt when water is flowing. Realigning the faucet ensures even weight distribution and prevents water leaks, which can waste up to 10 gallons of water daily if unresolved. Replacing corroded or damaged parts, such as O-rings or mounting nuts, addresses root causes and extends faucet lifespan. Regular maintenance, including annual inspections, reduces the likelihood of recurring issues by 40%, according to the American Hardware Association.