Plumbing

the guide

What a plumber is really diagnosing

The symptom is rarely the problem. Slow drains in several fixtures point to the main line; one slow drain points to that branch. Low hot-water pressure suggests a failing heater or clogged supply; stains on a ceiling can come from a supply line, a drain, or a shower pan. A good plumber explains what they tested before recommending a repair.

What affects the price

Access is the biggest variable: a valve behind an open basement ceiling is quick, the same valve behind tile is not. Material matters too — copper, PEX, galvanized steel and cast iron are repaired differently — and so does whether a permit and inspection are required for the work.

When to call right away

Shut the main valve and call for active leaks, sewage backing up into the house, no water at all, or any smell of gas near a water heater. Know where your main shutoff is before you need it.

Rules and paperwork in Pennsylvania

• Pennsylvania’s Home Improvement Consumer Protection Act requires most contractors who perform home improvements to register with the Attorney General’s office and to give you a written contract for any job over $500. The registration number belongs on the estimate and the contract — ask for it.
• Building permits in Pennsylvania are issued under the Uniform Construction Code by each municipality or the inspection agency it appoints, so the local building or codes office decides what needs a permit and an inspection.
• Pennsylvania does not issue a statewide license for this trade. Some municipalities register or license it locally, which is one reason to confirm requirements with your own municipality.

Sources: Pennsylvania Office of Attorney General — Home Improvement Consumer Protection Act; Pennsylvania Department of Labor & Industry — Uniform Construction Code; Pennsylvania Department of Labor & Industry. Rules change — confirm current requirements with the agency and with your municipality.

Questions to ask before you hire

1. Will this work need a permit, and who pulls it?
2. What exactly did you test to find the cause?
3. Is the price fixed, or time and materials?
4. What is your Pennsylvania Home Improvement Contractor registration number?

Frequently asked questions