Water Heater Repair & Installation
Water Heater Services in Marin, Sonoma & Napa County
Hot water is vital to your daily life. From morning showers and clean dishes to laundry and overall home comfort, you have your water heater to thank for those comforts.
A well-maintained and efficient water heater not only provides consistent comfort but also plays a significant role in your home’s energy consumption and overall utility costs. When your water heater fails, you don’t have time to waste, trust Ongaro & Sons to restore your hot water quickly and efficiently.
Whether you’re experiencing fluctuating water temperatures, discolored water, or no hot water at all, Ongaro & Sons is here to help with fast, reliable, and professional water heater services across the North Bay.
Your Local Experts for Water Heater Services
For generations, Marin, Sonoma, Napa, and nearby North Bay communities have counted on Ongaro & Sons for dependable plumbing solutions. Since 1932, we’ve built a reputation for delivering expert service with integrity and care.
With licensed technicians and a commitment to personalized service, we ensure your water heater meets your household’s needs efficiently and reliably.
Water Heater Maintenance
A small dose of preventative maintenance goes a long way toward extending the service life of your water heater. Scheduling annual tune-ups and inspections allows our team to flush your tank of sediment, check the anode rod, test the pressure-relief valve, and check the wiring, along with other tasks.
Maintenance visits also allow our technicians to uncover and address minor issues before they turn into costly repairs. You schedule tune-ups and oil changes for your vehicle, apply that same strategy to your water heater.
Enrolling in Ongaro Maintenance Plans makes it convenient to schedule service calls and repairs. Join our maintenance plan today to enjoy discounts, priority service, friendly reminders, and other perks.
Our Water Heater Maintenance Services Include
- Tank Flushing: We remove built-up sediment that can damage the tank, reduce heating efficiency, and shorten your system’s life.
- Component Inspections: We check every key part, from the thermostat and heating elements to the anode rod and relief valve, to catch wear and corrosion before they cause trouble.
Don’t wait until your water heater breaks down, regular maintenance can add years to its lifespan, boost energy efficiency, and prevent costly repairs.
Water Heater Repair
Not getting the hot water you need? Strange sounds, inconsistent temperatures, or no hot water at all are signs that your water heater may need professional service. Whether you have a traditional tank unit or a high-efficiency tankless system, our experienced technicians can locate the problem and make fast, effective repairs.
We service all major water heater brands and models and handle a wide range of common issues, including:
- No Hot Water: If your water heater isn’t producing hot water, the culprit could be a faulty heating element, a blown fuse, or a malfunctioning igniter. We’ll quickly identify the issue and the best way to restore your hot water.
- Not Enough Hot Water: Running out of hot water too quickly? It could be sediment buildup in the tank, a miscalibrated thermostat, or an undersized system for your household. We’ll diagnose the cause and recommend the correct fix.
- Leaks Around the Water Heater: Water pooling near the base of your unit could indicate a corroded tank, a loose valve, or failing connections. We’ll assess whether repairs are possible or if replacement is the safer option.
- Unusual Noises: Popping, rumbling, or banging noises from your tank often mean that sediment accumulates at the bottom. This reduces efficiency and can damage your system over time.
- Rusty or Foul-Smelling Water: Brown or discolored water may indicate corrosion inside the tank, while a sulfur smell could signal bacteria buildup, both issues need prompt attention.
We’ll explain our findings, provide a clear estimate, and only proceed with your approval. We aim to get your system back in working order with lasting solutions.

Water Heater Replacement & Installation
When repairs become frequent, or your water heater just can’t keep up, replacement is a wise choice. Our team at Ongaro & Sons provides expert installation services to ensure your new unit is sized, installed, and optimized for your home.
We help you choose from today’s most efficient and reliable water heater models, including:
- Traditional Tank Water Heaters: Today’s tank-style heaters are built for better performance and energy efficiency than ever before. We’ll help you select the right tank size and fuel source (electric or gas) based on your home’s needs.
- Tankless Water Heaters: Enjoy hot water on demand with tankless systems that only heat water when needed. These compact units save energy, deliver endless hot water, and typically last longer than tank units, perfect for high-demand households.
- Heat Pump (Hybrid) Water Heaters: For maximum energy efficiency, consider a hybrid electric water heater. These systems use ambient air to heat water, using a fraction of the energy of conventional models, ideal for environmentally conscious homeowners looking to lower their utility bills.
We handle everything from proper sizing and expert installation to safe disposal of your old unit, ensuring a hassle-free upgrade from start to finish.

Schedule Your Water Heater Service
Whether you need a quick repair, seasonal maintenance, or a brand-new installation, our experienced team is ready to restore your hot water. We proudly serve Sonoma, Marin, and Napa counties, including Novato, Tiburon, Corte Madera, Sebastopol, and Penngrove. Call us now at 415-741-2820 or book your appointment online for fast, reliable water heater service you can trust.
Your Comfort, Our Priority
Ongaro & Sons is your trusted heating, cooling, plumbing, electrical, and solar expert, specializing in reliable maintenance and repair services that keep your home running efficiently year-round.
Our certified technicians deliver unmatched expertise with fast, friendly service across Marin, Sonoma and Napa County. From HVAC tune-ups to plumbing repairs and electrical upgrades or solar solutions, we focus on energy-efficient performance and long-term comfort. Count on us to maintain the systems that power your home and keep your environment just the way you like it.
Licensed, Insured, Background-Checked
Our technicians are licensed, experienced, and trained to service all makes and models.
Locally Owned and Operated
Serving the Napa, Marin, and Sonoma communities with personalized, hometown service.
Reliable Repairs
We respond quickly and get the job done right the first time, with no surprises.
Since 1932
Why Ongaro & Sons for Water Heaters
The install detail that decides service life is usually the one nobody photographs.
Schedule Service →Sized on recovery, not just on tank capacity
Running out of hot water is usually a recovery rate problem. A bigger tank is the expensive way to solve something a correctly specified unit handles.
Seismic strapping, expansion and venting done to code
California requires strapping. Closed systems require thermal expansion control. Both are inspected, and both are commonly missing on older installs.
Hardness taken into account
Hard water shortens tank life through scale. In districts where hardness is meaningful, that changes the maintenance interval and sometimes the equipment choice.
Gas, electric and heat pump options compared properly
Holding C-36 and C-10 means we can price a heat pump water heater including the circuit it needs, rather than quoting around it.
Permitted work by a C-36 licensed contractor
Ongaro & Sons has been family-owned in the North Bay since 1932, Diamond Certified since October 2016.

Discount
Membership
Ongaro Maintenance Plans
Annual maintenance on your home systems provides safeguards and comfort to you and your family. Members get priority scheduling, discounts, and proactive checkups that catch problems early.
Member Discounts
5% off every repair and replacement, all year long.
Peace of Mind
Proactive checkups catch issues before they become big problems.
Courtesy Reminders
We call you to schedule: never miss a seasonal service.
Special Offers
Enjoy our seasonal promotions and save on your next service. Limited-time offers, don’t miss out!
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Read MoreFrequently Asked Questions
Does my water heater need maintenance?
Yes, flushing once a year removes sediment that can reduce efficiency and damage the tank. Annual inspections can also review the exterior for corrosion or leaks around connections and ensure the pressure is where it should be.
How long should a water heater last?
Most conventional water heaters last 8–12 years. Tankless units can last 15–20 years with proper maintenance.
Why does my water heater take so long to heat up?
Common causes include sediment buildup, a failing heating element, or a long distance between the heater and fixtures. Alternatively, nothing could be wrong, and you just need a recirculating pump to reduce your wait time.