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United Plumbing & Water Heaters

Plumbers in Livermore, California
Ranked #3 in Livermore | Grade A-
4.90 (259 reviews)

United Plumbing & Water Heaters

Local plumbers focused on clear communication, careful diagnostics, and reliable results for Danville homeowners. Typical calls include lukewarm water issues, leaking valves, and fixture replacements Serving homeowners across Livermore, California.

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Why Homeowners Choose This Business

Open daily 8am–8pm, clear communication before work starts, and technicians who verify the root cause rather than guessing. Local team serving Danville with prompt scheduling and courteous service Local experience that helps homeowners across Livermore, California compare a more region-aware provider.

Service Area

Based in Pleasanton and serving Danville, Alamo, San Ramon, Dublin, and nearby Tri-Valley neighborhoods Serving homeowners across Livermore, California and nearby surrounding areas.

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  • Service information
  • Customer review signals
  • Photo gallery
  • Public contact information
  • Published local profile

How This Business Compares

A quick local comparison based on review strength, business detail, and local service fit.
  • Maintains a competitive standing in this market.
  • Performs at or above the local average rating.
  • Shows strong customer satisfaction signals based on review quality and volume.

Services Covered

  Plumbing Services
  Supplier
  Water Heater Repair
  Water Heater Services
  Sewer Services
  Water Heater Replacement
  Tankless Water Heater Service
  Leak Detection
  Maintenance
  Pressure Valve Repair
  Faucet Installation
  Installations
  Repairs
  Toilet Repair
  Hot water troubleshooting
  Drain clearing
  Plumbing Diagnostics
  Valve Replacement
  Tri-Valley Plumbing

Water heater diagnostics, repair, and replacement (tank and tankless). Leak detection and repair for valves and supply lines. Fixture installs for faucets and toilets. Basic drain clearing and troubleshooting of low hot-water temperature issues.

Reviews

Customer Reviews

Xinghua Lou
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.
David Lin
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 Plumb…
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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!
Troy Dameron
United Plumbing came out on a Sunday evening to fix a leaking washing machine faucet. They really came through, and did a great job! Highly recommended.
Misty S
I want to sincerely thank the amazing team at United Plumbing & Water Heaters—Joe, Zak, Tony, April, and Grace—for all their help and support. They've provided us with exceptional customer service and are truly wonderful people to work with…
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I want to sincerely thank the amazing team at United Plumbing & Water Heaters—Joe, Zak, Tony, April, and Grace—for all their help and support. They've provided us with exceptional customer service and are truly wonderful people to work with. They’re A++++. Their dedication truly reflects the company’s core values. A special shout-out to Zak—you’re such an awesome technician! We're really pleased with his work and consider him a fantastic asset to the team. On a scale of 10, I’d give him a perfect 10! Based on our experience, I’m excited to continue working with them more often in the future, and I wouldn’t hesitate to recommend this company to all my family and friends ??
Michelle Dumas
I had an excellent experience with United HVAC Plumbing Company. They were able to come out the same day to fix a leaking water pressure valve, which was such a relief. The technician was not only quick but incredibly thorough, even taking…
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I had an excellent experience with United HVAC Plumbing Company. They were able to come out the same day to fix a leaking water pressure valve, which was such a relief. The technician was not only quick but incredibly thorough, even taking the time to double-check the water pressure at our sinks to make sure everything was working properly.

Their customer service was outstanding from start to finish—professional, responsive, and truly helpful. I really appreciate the quality of their work and the care they put into making sure the issue was fully resolved.

Highly recommend United HVAC Plumbing Company for anyone needing prompt and reliable service!

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Frequently Asked Questions

Yes, technicians handle diagnostics, repairs, and replacements for both tank and tankless models. They evaluate age, condition, and parts availability before recommending repair or replacement.

Same-day appointments are often available during the 8am–8pm schedule. Availability varies by workload and location, so calling early in the day improves your chances.

Consistently lukewarm water, leaks around the valve or tank, or fluctuating temperatures are common indicators. A technician can run diagnostics to confirm the cause before proposing options.

Yes, estimates are discussed before work begins so you know the expected scope and cost. If the diagnosis changes, the technician will review next steps before proceeding.

Service is offered seven days a week from 8am to 8pm. Weekend time slots book quickly, so scheduling ahead is recommended when possible.
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Opening Hours

  • Monday 8:00 AM – 8:00 PM
  • Tuesday 8:00 AM – 8:00 PM
  • Wednesday 8:00 AM – 8:00 PM
  • Thursday 8:00 AM – 8:00 PM
  • Friday 8:00 AM – 8:00 PM
  • Saturday 8:00 AM – 8:00 PM
  • Sunday 8:00 AM – 8:00 PM

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Business Details

Business Rating
4.90 (259 reviews) Featured BusinessPro Listing
Address
4380 Dorman Ct, Pleasanton, CA 94588
Business Type
Plumber
Website
https://plumbing-united.com/pleasanton/
City Page
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