Licensed plumbers serving Bay Area, Sacramento, Fairfield, Vacaville, and surrounding areas. Water heater installation, drain cleaning, leak detection.
Fast replacement and repair of tank gas water heaters across Bay Area & Sacramento.
Learn more →Licensed plumbers installing, replacing and repairing tankless gas water heaters.
Learn more →We replace your old gas tank water heater with an energy-efficient hybrid heat pump unit.
Learn more →We install and replace whole-house filtration systems that protect your pipes, appliances, and your family's health.
Learn more →Licensed sink installation and replacement for kitchens and bathrooms across Bay Area & Sacramento.
Learn more →Licensed faucet installation and replacement for kitchens and bathrooms across Bay Area & Sacramento.
Learn more →No waiting days for an appointment. Homeowners get same-day service, upfront pricing, and zero surprises.
Call or book online. We confirm your appointment immediately and give you an exact arrival window.
Your licensed plumber arrives on time, diagnoses the problem, and gives you a flat-rate price before touching anything.
We fix it right the first time, leave your home cleaner than we found it, and back every job with a warranty.
Over 7 years serving Bay Area, Sacramento, Fairfield, and Vacaville. More than 16,000 jobs completed. We treat your home like our own.
Honest reviews from homeowners.
EXCELLENT Based on 249 reviews Posted on Google Darima DagbainTrustindex verifies that the original source of the review is Google. Zak was amazing to work with. He did a clean and efficient job. My water heater is gas and the pilot flame would not light. Zak came out some day and fixed the issue in 5-10 minutes. He explained everything that was wrong and how to prevent this issue. In addition to that, my house is older and we have never checked the water pressure, Zak checked it out and turns out it was way bone the norm. We would not have caught this until issues started arising, but luckily Zak checked it out. Now we avoided future issues and got our water heater fixed. From now on I will only be using United Plumbing and Water Heaters, and especially Zak.
Owner's reply
Thank you for the great review! We're glad Zak was able to quickly fix your water heater and take the time to explain everything. Catching the high water pressure early is a big win in preventing future issues. We truly appreciate your trust and are always here when you need us!Posted on Google Danielle ElizabethTrustindex verifies that the original source of the review is Google. Mike came over to help us trouble shoot what we thought was a plumbing issue. He worked for 1+ hours to try and re create the issue, running many tests. In the end, he could not find anything wrong. He even consulted with other plumbers on his team. He didn't charge us a single penny for the call because he didn't find a leak. He fully tested the plumbing was in working order and he even sent us videos of our pipes to show us there was no leaks. He said a member of there team would come back ASAP if we saw any water leaking at this point. I am so surprised they didn't try to nickel and dime us for coming out. My husband ran out to tip him because he clearly took time with us and we were very happy and reassured. Update: We ended up using United Plumbing again to change a kitchen faucet and flush our drainage pipes. This time Zak was our technician and he was very polite and informative. He gave me advice on the remaining life of our garage disposal and hot water heater. He also found and fixed some connectors that were installed incorrectly and ready to fail. Every time he found an issue, he would discuss the estimate cost upfront (often at a lower price than I found for similar quotes online.) I was very pleased with the work he did.
Owner's reply
Thank you so much for taking the time to share your experience with us! We're genuinely thrilled to hear that Mike went above and beyond to thoroughly investigate your concern and provide you with peace of mind. It’s fantastic that he took the time to run multiple tests, consult with the team, and even share video evidence to ensure everything was working properly. We believe honesty and transparency are just as important as the work itself, and we're glad that came through in your experience. Your appreciation and trust truly mean a lot to us. Remember, we’re always here to help with any future plumbing needs, including inspections, repairs, and maintenance. Take care!Posted on Google Annie ChenTrustindex verifies that the original source of the review is Google. We have gotten many projects (water heater emergency shutoff valve, toilet flange repair, main water shutoff, deformed angle valve stop replacement) completed with United and each time, their technicians were extremely knowledgeable, on-time, and communicative. They have the best prices in town yet this does not compromise the quality of their work. Thank you to Mike E., Viktor B., and Almaz O. for their professional work, strong problem-solving skills, and exhibiting the heart of a teacher whenever we had maintenance questions. Thank you to the scheduling ladies who are highly communicative over text and phone. I feel so grateful we have this excellent company nearby.
Owner's reply
Thank you so much for taking the time to share your experience with us! We're genuinely thrilled to hear that you've trusted us with multiple projects, from your water heater emergency shutoff valve to toilet flange repair and main water shutoff work, and that each experience met your expectations. It’s fantastic to know that Mike E., Viktor B., and Almaz O. consistently delivered knowledgeable, on-time, and communicative service. Your kind words about our pricing and quality truly mean a lot to us, and we're grateful to have earned your trust. Remember, we're always here to help with any future plumbing needs, including water heater repairs, replacements, installations, as well as drain cleaning and sewer line services. Stay safe and take care!Posted on Google Michelle HanTrustindex verifies that the original source of the review is Google. On Friday afternoon, we had a serious drainage backup that caused water to overflow. Our regular plumber was out of town, so I had to call around based on Yelp reviews. Thankfully, United Plumbing & Water Heaters was able to schedule us right away. The technician, Zak, came out to diagnose the issue and offered a clear solution at a reasonable price. He even scheduled us first thing Saturday morning to fix it. What really surprised and touched me was that Zak showed up despite having a foot injury from the night before. He explained that no other technicians were available and he wanted to keep his promise to take care of us. That level of professionalism truly meant a lot. After the job was done, Zak took the time to clearly explain what caused the issue, what he fixed, and how to prevent it in the future. You can really tell he is knowledgeable and takes pride in his work. Thank you so much, Zak. You’re the best! Lastly, I want to mention Grace, her customer service was outstanding. She handled my panic so calmly, quickly scheduled everything, and followed up to make sure everything went smoothly. I was really impressed. Overall, I highly recommend United Plumbing & Water Heaters for their excellent customer service, professionalism, knowledgeable technicians, and fair pricing.
Owner's reply
Thank you so much for taking the time to share your experience with us! We're genuinely thrilled we could be there for you during such a stressful drainage backup, especially on short notice. It’s fantastic to hear that Zak was able to quickly diagnose the issue, provide a clear solution, and follow through on his promise—even under challenging circumstances. His dedication and professionalism truly reflect the standards we strive for every day. We're also so glad Grace was able to support you with calm, responsive communication and ensure everything went smoothly. Your kind words and recommendation mean a lot to us, and we’re grateful for your trust. Remember, we’re always here to help with any future drain cleaning, water heater services, or plumbing needs. Take care!Posted on Google Xinghua LouTrustindex verifies that the original source of the review is Google. Had a great experience with United. They were very fast in response and the work was quite thorough. They did multiple inspections to find out the root issue for my water heater and never just jump to a solution.
Owner's reply
Thank you so much for taking the time to share your experience with us! We're genuinely thrilled to hear that you had a great experience and that our team responded quickly and worked thoroughly to diagnose your water heater issue. It’s fantastic that multiple inspections were performed to identify the root cause rather than jumping to conclusions—that level of care and attention is exactly what we strive for. Your kind words about our pricing and service mean a lot to us, and we’re grateful for your trust. Remember, we’re always here to help with any future water heater repairs, replacements, installations, or other plumbing needs. Take care!Posted on Google John ScanlonTrustindex verifies that the original source of the review is Google. Great company. Last minute emergency. They visited the site and had me an estimate in a few hours and it was fixed the next day. Service tech that came to the house was awesome! Will definitely be calling in the future.
Owner's reply
Thank you so much for taking the time to share your experience with us! We're genuinely thrilled we could assist you during a last-minute emergency and provide a quick estimate followed by a fast resolution the very next day. It’s fantastic to hear that our technician delivered such a positive experience and took great care of your home. Your kind words and trust mean a lot to us, and we’re grateful for the opportunity to help. Remember, we’re always here for any future plumbing or water heater needs whenever you need us. Take care!Posted on Google David LinTrustindex verifies that the original source of the review is Google. I live in a house that started to only output lukewarm water at all times of the day. Instead of randomly guessing the issue, based on random articles on my own, I decided to reach out to plumbing services in my area. United HVAC and Plumbing were one of the first to reach out and with an offer of a free quote whereas several others charge. I had the pleasure of having Viktor B from United HVAC and Plumbing come help the same day. He was very knowledgeable, using his sense of touch and various ways to determine any and all issues with the water heating system. He immediately found the issue which was that cold water was being mixed into the hot circulating around the house and even taught me a bit of how everything worked very patiently. He blocked off the pipe to resolve the symptom of the issue for the night while he sent me a quote and scheduled for repairs the very next day. On president’s day no less! My family got to enjoy hot showers and warm water that night. Viktor B came back the next day with everything needed to replace the broken pump and gate that was supposed to prevent cold water from circulating. He fixed it in less than 3 hours which was amazing! He even ensured that the area in which he worked on was very clean! Almost all of the mess was because of my dad’s old clutter hoarded in the corner by the boiler but it came out very spotless. Highly recommend United HVAC and Plumbing. It was an amazing pleasure to have Viktor B over in order to provide repair services to our home!
Owner's reply
Thank you so much for taking the time to share your experience with us! We're genuinely thrilled to hear Viktor was able to diagnose and fix your water heating issue so efficiently. It's fantastic that you and your family could enjoy warm showers that night, even on a holiday. We're glad Viktor could explain the process and leave everything spotless. Your kind words made our day, and we're grateful for your trust and recommendation. Remember, we're always here to help with any future water heater repairs, replacements, installations, or even drain cleaning and sewer line repairs. Stay warm and take care!Posted on Google O WTrustindex verifies that the original source of the review is Google. Igor and Andrew were very accommodating of scheduling and did a great job installing the new water heater. I would highly recommend.
Owner's reply
Thank you so much for taking the time to share your experience! We're thrilled to hear that Igor and Andrew were able to accommodate your schedule and make installing your new water heater a seamless process. Your recommendation means the world to us and reminds us why we love doing what we do. Should you ever need assistance with water heater repair, replacement, installation, or even drain cleaning and sewer line repair, we're just a call away and always happy to help. Wishing you a cozy and uninterrupted hot water experience!Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
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Licensed plumbers serving Bay Area, Sacramento, Fairfield, and Vacaville