N&N Supply Company

Philadelphia's plumbing category lists 92 businesses, but that number alone doesn't tell you who'll actually pick up. Every one of the 92 entries has a phone number on file, and 85 also link out to a website, so you can check reviews or service areas before you dial. The listings cluster in certain zip codes: 19128 has 7, while 19134 and 19135 each carry 6. If you're closer to Center City or South Philly, try 19147, which holds 5 entries, or check 19111, 19124, 19152, and 19154, each with 4.

None of these listings are marked verified, and paid placements are labeled Sponsored whenever they run, though right now this category has zero, so you're looking at the plain, unranked directory rather than a promoted lineup. Call two or three numbers if you're comparing quotes, since availability and pricing vary shop to shop and this page doesn't rank anyone. If you own one of these plumbing businesses and notice a missing website or an outdated phone number, you can claim the listing and fix it yourself, which matters when a caller in a smaller zip only tries one number before giving up.