General Plumbing Supply
Company Overview
Established in 1965, General Plumbing Supply Company offers plumbing, electrical, heating, air conditioning, and commercial lighting solutions for both residential and commercial needs. Our company features six plumbing supply branches and is an authorized distributor of American Standard plumbing products, A.O. Smith water heaters, and Bryant electrical components. We stock an extensive selection of water heaters, boilers, pumps, toilets, faucets, sinks, garbage disposals, shower and tub components, as well as steel, plastic, cast iron, brass, and copper pipes and tubing, fittings, valves, and joining materials suitable for all pipe types. Our branch in Walnut Creek, CA, is part of General Plumbing Supply Co, which was established in 1965. Our expanded showroom debuted in 2009.
Business Services
- Faucet repair
- Gas line installation
- Gas line repair
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Toilet repair
- Water heater repair
Business Location & Hours
Mon: | 7:30 AM - 5:00 PM |
Tue: | 7:30 AM - 5:00 PM |
Wed: | 7:30 AM - 5:00 PM |
Thu: | 7:30 AM - 5:00 PM |
Fri: | 7:30 AM - 5:00 PM |
Sat: | Closed |
Sun: | Closed |
Recommended Customer Reviews

Luis is the best there is- he was VERY helpful and patient with me during my bathroom remodel...all 3 of them. We worked together in person as well as over the phone and his attention to detail, knowledge of the products and great attitude helped me get exactly what I want! It's worth saying that throughout the remodel process, he was the best customer service I received and I will never go anywhere else! Thanks, Luis!

My wife and I were in the process of planning a remodel of two bathrooms. We were overwhelmed by all the choices we needed to make around every aspect of the remodel. By the time we got to researching and deciding which plumbing fixtures to select we were tired and overwhelmed by choices, design options, quality, costs, etc. Luis was our sales rep at General Plumbing Supply. He patiently and thoroughly explained qualities and characteristics we should consider and guided us around the expansive showroom to assist us with selecting the right products for our project. He was very knowledgeable about all the products in the showroom and provided excellent information and thoughtful guidance without any pressure to buy. We are grateful for Luis' assistance and very happy with the products he helped us to select. Thanks so much, Luis!

I purchased some pex pipe and some fittings from this place. The rings were all bored out so when the pipe was expanded the rings would just slide down the pipe. Normally there is a stop at the end of the ring. The stops on the product I received appeared to be drilled out by someone.
The pex pipe I received from this place has been causing extremely bad taste out of the sink I installed it on. Its been 6 months of daily use and the taste is still there. Its an intense taste of PEX pipe. All the other sinks in the house were installed with the same brand PEX from Pace and there is no leaching at all. The water from these sinks tastes perfect.
I'm not sure what is going on and why the same brand uponor pex purchased from General Plumbing is leaching so bad. If it is still there three months from now I am going to re-pex it with product from Pace.
I've also found General Plumbing to be more of a union worker sort of place. Definitely not a DIYer place. They take advantage of DIYers and will sell you expensive product that you do not need. They seem to really dislike the DIY type, so they bluntly don't give a crap. I sometimes think they purposefully sold me defective pex products to get them off their shelves.

Went to the showroom to see what I might like. As you enter the showroom, the whole room smells so strong like men's cologne or perfume and it lingers in your clothing! I tried not to breathe with the mask on. Luis was the sales rep for the day. He answered questions but lack customer service skills. Not that friendly. I left and he gave his calling card to me. The next day, I called and asked for a specific faucet that I need. He asked for the model number and I said I have the name but not model number. I know he can search it by name (I guess lazyness strikes!). So I searched and gave the model number. Then I ask something about the item, he sounded pissed and said- ""I dont know, whatever model you gave me is that one!"" Wow.. Then I just said, ok, bye. My guess was he'd been working there for a long time? That's why he can talk just like that! But still, it shouldn't be that way! That's why I'd rather drive 45mins to Brentwood or even Walnut Creek, if I will be treated right! Which I have proven, that those branches are way better than the American Canyon one. Needs a bit of a work here..

I'm disappointed with the counter person he was short and curt as I tried to get info about my plumbing issues seemed like I wasn't important enough to take the time to resolve my problem.
The last time I was in there a couple of years ago he wasn't much different seemed like it was a hassle to help me hopefully this review will motivate them to review there customer service because the employees are the business it's all about service.
General plumbing Walnut Creek was just the opposite great service I will be doing business with them.

Needed some supplies and definitely needed some advice on my bathroom remodel. Bob went above and beyond helping me get everything I needed. His one on one advice and guidance was crucial. He saved me from making some very expensive mistakes.
This kind of service is why shopping small and avoiding the big box chains is always the right choice.
Thanks again sir!

Poor service from Luis Alanis Showroom Sales.
Luis may need to work on leaving his baggage at home or at least know when to give himself time off to get his attitude right for customers. Displayed very poor attitude towards me when I was just trying to get the right product needed. This was not necessary and will make me hesitate in ever going back.
Showroom was pretty cool with lots of variety and choices.
Once my product was ordered Luis said he would reach out to let me know it was there. That never happened. I ended up having to follow up with my order after the expected time frame passed.
I only say this to management/ownership. This high degree of showroom variety only does any good if you have the right people in place for the customer. It may be time to reevaluate Luis's role at your shop to maximize your investment and ensure he is in the best suited role.
We're talking basic customer service, without the nasty, unnecessary attitude and letting the customer know when there product has arrived as promised. We're expecting the basics at the very least. Thank you.

I do flooring. Was recommended this place from an Ace hardware person as they didn't have my part. I go in tell the guy I know nothing about plumbing. Show him the bathroom sink valves I have and need. He says ""what brand?"" I say I haven't a clue I just bought the house. I figure with all his knowledge, as he said it is probably one of these two types of water faucets. But I as a flooring guy need to know. He doesn't ask me any questions or anything to help try to figure this out. I say UCK THEM for the regular guy. I WILL NEVER ECOMMEND OR GO THERE.

Went to General Plumbing Supply for help/advice with an outside water faucet that is leaking. I was willing to purchase whatever they recommend but they could care less and were not interested in even getting up from their chairs. Will never return.

Nice store, plenty on display and I had a great experience working with Luis. I got a very nice Grohe kitchen faucet at a competitive price.