Plumbing guides

Where to find your home's main water shutoff valve, how to close each valve type, and how to shut off water to a single fixture or the water heater.

The real reasons a drain clogs again after you clear it, how to tell a fixture problem from a main line problem, and which fix lasts.

When a spot repair or lining makes sense, when the whole sewer line should be replaced, and how the camera inspection drives the decision.

Typical lifespans of tank, tankless and heat pump water heaters, how to read the age from the serial number, and the signs it's time to replace.

How tankless and tank water heaters compare on hot water supply, upfront and operating cost, installation work, lifespan and maintenance.

How gas and electric tank water heaters compare on recovery speed, installation, venting, safety and common failures, and how to choose when replacing one.

A winter plumbing checklist: outdoor faucets, irrigation, exposed pipes and thermostat settings, plus how a vacant or seasonal home is drained down.

Typical time on site for common plumbing jobs, from a clogged drain to a sewer line replacement, and the things that make a job take longer.

Who licenses plumbers in each state, how to look up a license number, what to check on an estimate, and the red flags to walk away from.

How hard water damages water heaters, tankless units, faucets and pipes, how to find your hardness, and when a softener or descaling is worth it.