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TRUSTED BY SUNOL, CA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon194
    Verified water heater services reviews

Top-Rated Water heater pros in Sunol - Updated Nov 2026

Avatar for Water Heaters Masters
Water Heaters Masters
4.9(
110
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessTankless Water Heater - Repair+5 more

Serving Sunol, CA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"I have what turned out to be a 30 year old water heater replaced by this great company and they did it the same day of the quote. The installer had the water heater I wanted on the truck and did an excellent job of putting in the new unit, cleaning up and even replacing copper flex tubing and installing a new overflow pipe out of copper as well, no additional cost. This company specializes in water heaters and couldn't do any additional work on supply lines and they clearly state that on their website. I didn't need that type of additional work."
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+20

Response time9 hrs
Recommended by95%of homeowners
Avatar for Better Water Heaters
Better Water Heaters
4.5(
195
)
Tankless Water Heater - InstallTankless Water Heater - RepairWater Heater - Install or Replace+1 more

Serving Sunol, CA and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"We noticed black particles/materials on top of our water heater. Our thinking was that the particles were coming out of the top of the water heater, where there is an opening that was just below the venting pipe that leads to the roof. I called Better Water Heaters and Frans (owner?) answered. I did not realize that he was in his truck on the way to another job. I described what we saw and did not think it was coming from the water heater. He suggested that I sent him the pictures that we taken and forwarded to him. Shortly thereafter, he called back and reconfirmed to me that he did not think the particles/black materials were coming from the water heater and that it is more likely, coming from the roof by way of the vent pipe. Frans responded fairly quickly and did not charge me for his professional assessment of the problem. As a result, I will call Better Heater Services in the future whenever servicing is required."
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Recommended by90%of homeowners
Avatar for Albert Nahman Plumbing, Heating, and Cooling
Albert Nahman Plumbing, Heating, and Cooling
4.4(
721
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Sunol, CA and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Warranties offered

"This is the third time I have used Albert Nahman. This time was for a water leak with an unclear origin. They did a great job diagnosing the problem and took the time to explain what they found and offer options on potential fixes. I really appreciate the care their plumber took in tracking down the problem and providing a realistic quote for the cost and time to fix the problem. They also arrive on time and do a great job cleaning up after the work is done. A+++ company. Will definitely use them again the in future."
Living room Mini-Split
Aquasana home Filtration
Almost no disturbance at EBMUD meter
Navien with filtration to protect the heat exchanger
New house valve and Pressure Reducing Valve

+73

Response time8 hrs
Response rate100%
41 neighbors recently requested a quote
Avatar for Chandler's Plumbing
Chandler's Plumbing
4.3(
745
)
Water Heater - Install or ReplaceWater Heater - Repair or ServiceTankless Water Heater - Install+5 more

Serving Sunol, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2001

Free estimates

Emergency services offered

"We had a water heater break down during the holiday break. Chandler and his crew were able to respond and replace the water heater asap. Chandler explained that we had a large capacity water heater - 75 gallons and it would be more expensive, but we found their quote was very reasonable. They came and replaced the water heater and were very professional. I would highly recommend them and would gladly use them again. Thank you Chandler for such prompt service and great work!"
Sewer Line Camera Inspection
Shut-Off Valve Repair
Main Water Line Replacment
Water Heater Installation
Tankless Water Heater Installation

+310

Response time4 hrs
278 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Valley Plumbing Home Center, Inc
Valley Plumbing Home Center, Inc
4.7(
263
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Sunol, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1982

Emergency services offered

Warranties offered

"Prompt scheduling, recommended we pick out a hot water dispenser before the visit to save trip time, which we did but their showroom price for the unit was higher than we found elsewhere... so we bought a unit elsewhere and the plumber was fine about installing that one instead.  Very courteous, called to come earlier than scheduled, friendly and helpful service.  I have used them before and would use them again.  It's nice to be able to visit their show room and discuss options before a visit, and to get parts there when needed.
"
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Recommended by94%of homeowners
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Water Heaters FAQs, answered by experts

A thermocouple is a pretty simple device. It simply tells the control valve if heat is present. Most water heaters can use a universal thermocouple, provided it's the correct length. Getting one that's long enough for your appliance is crucial for success. However, some water heater models require model-specific thermocouples, which is why it's essential to take your existing one to the store to find the right match.

It takes between one and three hours to replace a hot water heater element, depending on whether you hire a pro or do the work yourself. For example, a professional plumber with all the necessary tools and experience can often finish the job in one to two hours, whereas DIY will take two to three hours because it'll involve more preparation and troubleshooting.

Unless you have previous plumbing experience or extensive experience with water heaters, you should avoid replacing your electric water heater yourself. This process involves disconnecting wiring and parts from the old water heater and reinstalling them onto the new one, among other difficult tasks. This job is best left to the pros to make sure that everything is connected correctly to avoid serious leaks or malfunctions.

Newer models are packed with newer technologies that decrease energy consumption and increase output, giving you more bang for your buck in more bills than one. 

If you’re trying to decide whether you want to repair or replace your new heater, consider factors like your utility bills, repair costs, and even your carbon footprint to help you decide whether it makes sense to buy a new one instead.

While a water heater explosion is rare, it is a serious danger. Be aware of these critical warning signs:

  • Sulfur or Rotten Egg Smell: This is a major red flag, especially for gas water heaters. It can indicate a gas leak, which could ignite and cause an explosion.

  • Leaking Pressure Valve: If the temperature and pressure (T&P) relief valve is leaking, it may not be able to properly regulate internal pressure, creating a risk of bursting.

  • Shaking or Rumbling: Loud rumbling or shaking from the tank can be a sign of extreme pressure buildup.

  • Excessive Heat: If the exterior of the water heater feels unusually hot to the touch, the unit may be overheating dangerously.

  • Rust-Colored Water: This can be a symptom of severe internal corrosion that compromises the tank's integrity.

If you notice any of these signs, especially a gas smell, you must act immediately. Shut off the gas supply to the water heater and call a professional plumber right away to prevent a potential disaster.

The Sunol, CA homeowners’ guide to water heater services

From average costs to expert advice, get all the answers you need to get your job done.