Boiler Installation | Marin, Sonoma & Napa

Q: Can hard water affect my boiler's performance?

Yes. Mineral buildup can reduce efficiency and cause overheating. Water softening can help extend your boiler's lifespan.

Q: Can I upgrade to a high-efficiency boiler?

Yes. Modern boilers are more compact and energy-efficient, saving you money on fuel bills.

Q: How long does a boiler last?

A well-maintained boiler can last 15 to 30 years. Frequent repairs, rising bills, or uneven heating may signal it's time to replace.

Q: How often should I maintain my heating equipment?

Regular maintenance is crucial to keep your system running efficiently and to maintain your warranty. It's akin to regular oil changes for a vehicle. Your furnace, boiler, or radiant heat system should be inspected and maintained annually. Your heat pump should be inspected biannually, once in the spring and again in the fall.

Q: Is it safe to run a leaking boiler?

No. Turn it off and call a technician. Leaks can cause pressure loss, corrosion, and water damage.

Q: What are signs my boiler needs repair?

No heat, water leaks, strange noises, or frequent cycling on and off are all red flags.

Q: Why has my heating bill gone up?

Rising energy bills may be due to thermostat settings, drafty windows, poor insulation, or an outdated heating system. Identifying and fixing these issues can improve efficiency.

At Ongaro & Sons, we specialize in the installation, repair, replacement, and maintenance of boilers as part of our comprehensive plumbing services. Whether you rely on a boiler for radiant floor heating, baseboard systems, or traditional radiators, our Class C4 California licensed boiler experts have the knowledge and experience to keep it running efficiently.

For four generations, homeowners in Northern California—including Napa, Marin, and Sonoma counties—have trusted us to deliver high-quality plumbing solutions that stand the test of time. When it’s time to upgrade or replace your boiler, we’ll help you select the right model for your home and your budget.

How Is a Boiler Different From Other Heaters?

Unlike systems that heat air, boilers generate hot water or steam to warm your home through radiant heat. This water-based approach heats your floors, walls, and furniture—allowing those surfaces to radiate warmth back into your space for a more consistent and comfortable indoor environment.

Many boilers operate as sealed systems, which means they recycle the same water or steam, making them incredibly energy-efficient. Because the water retains residual heat after each circulation, it requires less energy to reheat—helping you save on energy costs while keeping your home cozy.

What Are the Advantages of a Boiler?

If you’re considering installing or retrofitting a boiler, here are a few advantages to help you with your decision:

Boilers Cost Less to Operate

Boiler systems are inherently efficient and cost little to run. Their upfront price may be higher than other heating choices, but their annual energy costs more than compensate for that, giving them an edge.

Boilers Are a Cleaner Form of Heating

Boilers Operate Quietly

Boilers Are Environmentally Friendly

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 Northern California. 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.

Schedule Service

PHCC- and NATE-Certified Experts

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—no surprises.

Boiler Repairs

How do you know your boiler is malfunctioning? It usually provides a few clues, such as an unusual sound or an odd odor. More obvious signs are leaking water or inconveniently stopping altogether.

If you detect an issue with your boiler equipment, do not wait until the issue evolves into something more serious and costly. We always recommend calling us immediately for a prompt diagnosis and long-lasting repair for your boiler system.

Boiler Maintenance

Preventative maintenance will keep your boiler system running at peak performance and will extend its service life. With routine maintenance, our experts are able to detect potential issues before they develop into major malfunctions.

Regular multipoint inspections, cleanings, and tune-ups are essential to help you save money overall. Professional maintenance also keeps you compliant with your manufacturer’s warranty. Call our experienced team for a full maintenance appointment.

Ask about our preventative maintenance agreement plan—the Ongaro Maintenance Plans—to keep your boiler system running smoothly on those cold winter nights.

Boiler Installation and Replacement

With the proper professional routine maintenance, boilers can provide many years of service. However, as they age, they become less efficient and more costly to run. If you notice this with your aging boiler, contact Ongaro & Sons for an inspection—it might be time to replace it. We install a variety of boiler models and will work with you to find the best system to suit your home, lifestyle, and budget.

Ongaro & Sons takes the guesswork out of choosing a high-efficiency, quality boiler for your home. We calculate your home’s square footage, along with the heating needs of each room, to determine the appropriate size of your needed boiler. A correctly sized boiler will warm your home without wasting energy. A high-efficiency model will save money on utility bills. The higher the efficiency, the more money you will save.

Be sure to speak with our team about financing your new boiler. With approved credit, our financing can help you get the most from your investment.

Call Your Boiler Experts Today

Our hard-working team at Ongaro & Sons is here for you in Santa Rosa, San Rafael, Kenwood, and other nearby Northern California communities. When you need boiler installation, replacement, repair, or maintenance, you can rely on us to ensure your satisfaction with our work. Your comfort and satisfaction are important to us. Call us at 707-400-0274 or request service online today to discuss what we can do for you.

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Ongaro Maintenance Plans

Annual maintenance on your home systems provides safeguards and comfort to you and your family. Neglecting your routine checkups can potentially put everyone at risk.

With these annual visits, our experienced technicians use the latest technology to help find unsafe problems before they can become bigger problems.

Maintenance Plans