Plumbing 1 Builders
Company Overview
Bringing 25 years of experience to the table, Plumbing 1 Builders Inc., is a trustworthy, contractor offering exceptional plumbing and general contracting services for residential and commercial clients throughout the Bay Area, CA. Thank you for choosing us!
Located in San Mateo, Plumbing 1 Builders is a family-operated company.
Leo discovered his passion for plumbing through encouragement from his brothers and family. He started his journey at a plumbing business, where he recognized his skills in the field. After perfecting his craft for 15 years, he took the leap to establish Plumbing 1 Builders. He truly enjoys this work!
Business Services
- Bathroom remodeling
- Bathtub installation
- Bathtub repair
- Building additions
- Deck construction
- Drain installation
- Drain repair
- Faucet installation
- Faucet repair
- Garbage disposal installation
- Garbage disposal repair
- Gas line installation
- Gas line repair
- Hot water recirculation pump installation
- Hot water recirculation pump repair
- Patio, porch, or terrace construction or installation
- Landscaping building construction
- Laundry room remodeling
- Guest house or ADU construction
- Detached garage construction
- Single-family home construction
- New structure construction
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Remodeling
- New room addition
- Bathroom addition
- Bedroom addition
- Common area addition
- Garage addition
- Kitchen addition
- Laundry room addition
- Sewer installation
- Sewer repair
- Shower installation
- Shower repair
- Sink installation
- Sink repair
- Stairway addition
- New story addition
- Structural repair
- Sump pump installation
- Sump pump repair
- Toilet installation
- Toilet repair
- Water heater installation
- Water heater repair
- Water pipe installation
- Water pipe repair
Business Location & Hours
Mon: | 8:00 AM - 5:00 PM |
Tue: | 8:00 AM - 5:00 PM |
Wed: | 8:00 AM - 5:00 PM |
Thu: | 8:00 AM - 5:00 PM |
Fri: | 8:00 AM - 5:00 PM |
Sat: | 8:00 AM - 4:00 PM |
Sun: | 8:00 AM - 4:00 PM |
Recommended Customer Reviews

I've done business with Leo for about five years. He did a total re-piping in my home. He upgraded my toilets and sinks in my bathrooms and kitchen. I have total confidence in anything he does. Any service relies on HONESTY and great workmanship. I totally recommend Leo and Tony for any plumbing job you might need! We had kitchen problems today and fixed everything. We totally trust him!!

Tony came out and saved the day!! Our tub was backing up and both toilets were not flushing. He arrived and snaked the drain. Everything was working within the hour.

We had a plumbing emergency on a Sunday night where a faucet would not shut off and the valve underneath the sink would not shut off, leaving the water running continuously. We called a number of plumbers but no one could come out. Leo's Plumbing Service came out on very short notice and fixed it for a very reasonable price. Thank you!

Leo's plumbing came out to hook up a gas line for a new stove. They were the perfect balance of efficient, thorough, and attentive to safety. Plus friendly and thorough. easy to work with and good communications.

I have used Leo's Plumbing twice. Once to replace a shower cartridge and once to unclog the kitchen sink drain. Both times Antoni from Leo's arrived quickly, completed the job in a timely fashion and was courteous and honest. In the past we had another company do an emergency clog removal - they charged us $1200. Leo's found a clean out that the other company overlooked, removed the clog and ran the auger to the street for under $200. The first company told us we needed to look into replacing all of our drain pipes and our sewer pipe. Antoni from Leo's walked us through what actually would need to happen and on what time line (the pipes under the house are fine for now and the sewer pipe is something to keep an eye on but not an immediate concern). He also gave us maintenance tips for keeping the system clean. Leo's Plumbing is trustworthy, honest, fast and affordable. Hire them!

Leo was amazing. We had a scary, severe leak underneath our house at 5:30 on a Friday night. I called him and he came right over--arrived within half an hour. He immediately diagnosed the problem and said that if he didn't have the part he needed, he was going to go straight to the store to get it and come back. Luckily, he did have it and he was able to have it fixed in another 20 minutes--for a reasonable price, too. He was amazing. Highly recommend. Go Leo!

These guys saved us! A certain tree company we hired (I won't mention them by name) broke through our water main that left us with no water service to our house. Leo came out the same day and gave us a quote to replace the line from our street meter to our house. He was one of three quotes that we received and although his was the highest estimate - we chose to go with him because of his attitude, experience, confidence and his ability to get us water to our house through a temporary fix ASAP while his crew prepped for the real work. Everyone was punctual, social and very friendly. They worked very efficiently to get us our permanent water line replacement. They did a great job working through troublesome tree root systems and did great cleaning up after the job was complete. We liked him so much, we immediately hired him to install a gas shut off valve as part of our earthquake preparedness. I highly recommend Leo's Plumbing Services!

I called Leo's plumbing to come replace the leaking toilet. This ended up being significantly more work than anticipated ,but Tony honored the original estimate. He is very professional and friendly. I'm very happy with the work he did.

I was in need of a plumber on Saturday for a small toilet tank job. I didn't want to go through the online choices such as Angie's list etc. due to the plumber would be too expensive for this small job and may want overtime rates being its Saturday. I decided to go through Yelp for a plumber in my area. I came across Leo's Plumbing I read the reviews and they seemed to be very honest; not like some reviews on other companies pages that appeared it was a friends /relative who wrote their review. I decided to give Leo a call; to my surprise he answered the phone right away. I explained what I needed done and how small of a job it was I was surprised when he said he'd be at my home after he completed the current job he quoted me a very reasonable rate. He arrived at the time he said he would he was very courteous at the door he removed his shoes before entering my home. He completed the job within 20 minutes and it was done to my satisfaction. Leo was very polite and personable; if you are looking for an experienced,friendly and honest plumber Leo is your man. Thank you Leo and it was my pleasure to do business with you. I will be calling you for any future needs.

My kitchen was leaking and I called this people to come and fix the leak. John came to our home and fixed the leak and we were in hurry so I asked them if they can fix it the same day and it was not a problem for them. The price was not that expensive but the job was done week. So far I had really good experience with them . Thank you guys