Usually people dont think about a plumbing supply store when they are writing superlatives. Well, this store is rare gem. I do most of my plumbing myself and it so happened that we had a leak in our shower and I had to replace both facets, seats, washers, diverter and shower head (might we well do the shower head, its been a while). I took out the old crumbling parts (easily 70 years old) and, unsurprisingly, the first three plumbing supply stores didnt carry these anymore.When I came to A-1, I didnt have my hopes too high. I was wrong. Uriah, the owner, is a rate kind of an honest professional. He took one look at the parts and immediately knew which parts and maker they were and got them for me. I also picked a shower head and a pipe wrench but Uriah warned that the wrench he carried that day might come with a sticker shock and recommended I look for a cheaper one at another store. I had a great experience at A-1 and am so happy I found that place.

Had a kitchen faucet hose break and after trying a few different plumbing supply stores with no luck ended up at A 1, was warmly greeted by a very helpful and knowledgeable employee who was able to find the replacement for us. Thank you

Best place for helpful staff in town... thanks again to all your staff and specially to Jeffry.

THIS PLACE IS AWESOME!! Staff is super helpful, knowledgeable, and personable. They close later than other supply stores, and parking was a breeze.. My new go to!

Good service but a bit pricey.

Super helpful staff, very nice and didnt make me feel dumb. Open to public.

Always has what I need at a great price!

Excellent service! My favorite plumping supplier! Five stars! No doubt!!

These guys are the absolute best.. the nicest, friendliest and most helpful folks Ive encountered with my remodeling adventure..they had everything on hand and in stock from several small copper fittings to large cast iron pipes with associated angles and brackets for everything.. They even had vent pipes and brackets and overflows and tons of 4 band couplers in 3 sizes...A1-Plumbing is a slam dunk when I need anything plumbing!

Very helpful and provided a creative solution to my unique plumbing problem.

The little store that can.This is one of those old time stores that has everything visible on the shelves.Rustic and funky its a store for pros and the rest of us.They cut and thread plpe and have gas.Close to where I work.Ive never been let down by them.

Good service👍

Such great customer service ! They genuinely want to help you with your plumbing needsThank you so much again !

Great service and very helpful! The team at A-1 Plumbing Supply went out of their way to make sure I had the right parts. Saved me time and money. Thank you very much.

Fast, friendly service. Needed to pick up some pipe fittings and have some pipes custom cut and threaded. They were very fast and helpful. I recommend coming here for plumbing pipes and fittings before you go to Home Depot or Lowes.

Very helpful. Came in with a busted part from my faucet and they helped me find the right replacement real quick. No more leaking tap!

Great plumbing supply store, knowledgable and super helpful people in there. Spending long time to help me select the right faucet& shower system for my project. Love this place with their nice service.

The folks here are extremely knowledgeable and very helpful. Great combo!

Both knowledgeable and helpful, with fair prices. The only place I trust with my plumbing questions.

Euriah (sp?) Makes me look forward to needing plumbing supplies. Amazing customer service

They went out of their way to find the right part for me, about half an hour for a $5.00 purchase, very friendly and knowledgable

Great customer service- and they had what I needed

Great, friendly service! The guy there took his time to listen to my issue and came up with a great solution.

Very helpful and knowledgeable supply house.

I needed a custom-sized piece of threaded pipe. After being told sorry, cant help you at the big box stores, came in here, and the kind gentleman behind the counter fabricated the piece for me within minutes. Couldnt be happier with the service and the price!

Best Store For Plumbing In SF

1 my favorites to go for plumbing supplies!

Large variety of faucet washers