"Mike showed up the same day and had our water heater replaced in a few hours. Pricing was upfront, no surprises. Would absolutely call him again."
See all reviews ↓Need water heater repair in San Ramon? I can usually be there the same day you call. I'm Mike, a master plumber who has specialized exclusively in water heater repair, replacement, and installation since 2017. From emergency repairs in Windermere to new tankless installations in The Bridges, I provide water heater service throughout San Ramon and the surrounding area.
"Mike showed up the same day and had our water heater replaced in a few hours. Pricing was upfront, no surprises. Would absolutely call him again."
See all reviews ↓San Ramon has some of the hardest water in the East Bay. The area's water supply contains elevated levels of calcium and magnesium, which gradually settle inside the tank as mineral deposits. Over time, that sediment layer insulates the heating element from the water, forcing the unit to work harder and run longer to reach the set temperature. The result is higher energy bills, reduced hot water output, and accelerated wear on internal components like heating elements and gas control valves.
Hard water also deteriorates the anode rod faster than in softer water areas, which shortens the effective life of the tank. Most water heaters in San Ramon last 10 to 12 years under normal conditions — less without regular maintenance. For homeowners considering a long-term solution, Navien tankless systems include a filtration component specifically designed to handle hard water, which significantly extends the life of the equipment.
I repair all water heater brands, fuel types, and configurations. Most water heater repairs can be completed the same day. After taking a look at your water heater, I'll explain what's wrong, what it will cost to repair, and whether I think it makes sense to fix it or put that money toward a new unit instead.
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I install both tank and tankless water heaters, including customer-supplied units purchased from Home Depot, Lowe's, and other retailers. I'll make sure all water, gas, venting, and electrical connections are completed properly and that the system is operating correctly before I leave. Most installations can be completed the same day, and all labor is backed by a warranty.
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I replace both tank and tankless water heaters and install commercial-grade models built to provide years of reliable service. If your water heater is leaking, more than 10 years old, or needs an expensive repair, replacing the unit is often the better long-term investment. I'll help you choose the right size water heater for your household, recommend quality models, and find an option that fits your budget.
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I install, repair, and maintain tankless water heaters for both residential and commercial customers. Tankless systems provide continuous hot water, take up less space than traditional tanks, and can be an excellent option for larger San Ramon homes with higher hot water demands. I install Navien tankless systems and service all major brands.
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When you have a water heater emergency, give me a call. I'm Mike, and emergency service calls always receive top priority. I'll rearrange my schedule and get there as quickly as possible, often within a few hours. Once I arrive, I'll assess the situation — whether it's a water leak, gas issue, or complete failure — and get it resolved.
Call Now: (925) 338-9333 →Most of the water heaters I service in San Ramon are located in the garage and are typically 50 to 75 gallon units. The homes here are generally newer than what I see in Concord or Walnut Creek, so I'm not dealing with aging plumbing systems as often. What I do see are water heaters that have simply reached the end of their service life, usually showing up as a leak or a sudden loss of hot water.
San Ramon also has very hard water. Over time, calcium and mineral buildup can reduce the life of a water heater, wear out components, and create efficiency problems that many homeowners don't realize are happening. It's one of the biggest factors affecting water heater longevity in this area.
A lot of San Ramon homeowners ask me about tankless water heaters. For larger homes with multiple bathrooms, a properly sized tankless system can be an excellent long-term solution. I install Navien tankless water heaters because they perform well in hard water conditions and have proven to be reliable over the years.
Answers based on years of water heater work throughout San Ramon neighborhoods.
"We had Mike and Angelo install our new Navien tankless water heater on a Sunday, and they didn't charge us extra. They were knowledgeable, professional, and thorough — explained everything, installed all new fittings and venting, and left everything cleaner than when they arrived. I'm getting hot water upstairs and downstairs now. Would absolutely recommend them."
"Angelo and Mike showed up within 20 minutes of my call. They were courteous, knowledgeable, and had us back up and running in no time. They walked us through helpful maintenance tips while they worked and patiently answered every question we had. Friendly, fast, and professional — this is my go-to company for any plumbing need and I will not use anyone else."
"Our water heater broke down and Mike was booked solid for the next 3 days. Thankfully, he found a way to squeeze us in on the same day anyway. He found the problem immediately, walked us through some options with upfront pricing, and had everything installed and running within hours. Concord Water Heater Service is the only company I'll call for plumbing needs going forward."
San Ramon homeowners have been trusting us with their water heaters since 2017. Had a great experience? We'd love to hear from you.
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A customer called about a leaking twelve-year-old water heater that was leaking from the bottom, which is a clear sign that the tank itself had failed. The water heater was in the garage, which made for a straightforward swap. I then installed a commercial-grade 50-gallon electric unit for them the same day. The new tank I installed has thicker walls, which means a longer service life than the retail model I replaced. Now the customer has reliable hot water and a warranty that will actually cover them if something goes wrong.
A family of six in Gale Ranch had been running out of hot water during the morning rush for years. Their current 50-gallon unit was too small for the household and had been running continuously to meet demand. After asking a few questions about their daily usage, it was clear they needed a larger unit. I replaced it with a commercial-grade 75-gallon electric water heater the same day. Morning showers are no longer a scheduling problem.
A homeowner in The Bridges wanted to upgrade from a tank unit and had heard that tankless systems were a good fit for larger homes. Given San Ramon's hard water, I recommended the Navien system for its ability to handle mineral buildup. The installation featured the 10-year hard water filter, designed to protect the unit and considerably prolong its lifespan. They now enjoy a constant supply of hot water and a system built to surpass the durability of any tank-based unit.
I provide water heater repair, replacement, and installation throughout San Ramon. Whether you're in a newer planned community or an established neighborhood, I can typically reach you the same day you call.
San Ramon's newer neighborhoods — from Bishop Ranch to Dougherty Valley — tend to have larger homes with higher hot water demands. I'm familiar with the water heater setups common throughout the city and can get to you quickly from our Concord location. Most service calls are handled the same day, and emergency calls always receive top priority. If you're not sure whether your situation needs immediate attention, give me a call and I'll help you figure it out.
If your water heater has stopped working, is leaking, or you're planning a replacement, I will come out, evaluate the system, and explain exactly what needs to be done. You will get clear recommendations and work completed to California code.
Repairs, full replacements, and emergency calls are handled directly by me. You will know the plan before any work begins. I'm based in Concord and handle water heater service throughout San Ramon.
Serving San Ramon from our Concord location since 2017