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Solar Panel Installation

Need Reliable Solar Services in Marin, Sonoma & Napa County?

Want to lower your energy bills, reduce your carbon footprint, and protect our state’s natural resources? Go solar. This renewable energy source harnesses the power of the sun.

Take advantage of financial incentives designed to make it affordable and convenient to add solar paneling. Your home no longer needs to be solely dependent on traditional fossil fuels, and California allows homeowners and businesses with solar panels to sell excess electricity back to the utility grid through net metering programs. We also offer convenient financing options to make going solar even easier.

Our licensed team at Ongaro & Sons knows how to expertly install solar paneling so that you enjoy the benefits for years to come. We provide solar panel installation and services for residential and commercial settings in Marin, Napa, and Sonoma counties, as well as all the neighboring communities in between. Call us today at 415-741-2820 for a free consultation.

How Solar Energy Works

Solar panels use photovoltaic cells to absorb sunlight and convert it into energy. The energy flows into a conductive wire that travels to an inverter. The inverter converts the energy into usable electricity to power your appliances, laptops, home entertainment systems, and other devices.

A meter keeps tabs on how much electricity you produce. In many states today, your local utility company will buy back any excess electricity your system generates.

Installing solar panels can also increase the market value of your home, and you will not pay more in property taxes, as California has a property tax exclusion for active solar energy systems that prevents the state from increasing the assessed value of your home. Your market value goes up, but your property taxes remain the same!

Ongaro & Sons crew installing a rooftop solar array with fall protection

Solar Energy Installation and Maintenance

Ongaro & Sons provides comprehensive solar installation and maintenance services to ensure long-term energy savings and system performance.

Our expert team begins with a thorough evaluation of your home’s energy efficiency and overall usage. We’ll assess your roof’s orientation, shading, and available space to determine the optimal placement and the number of panels needed to meet your energy goals. From permitting to panel placement, we handle every step of the installation process with precision and care.

Once your system is installed, we offer ongoing maintenance to keep it operating at peak performance. This includes panel inspections, system monitoring, and cleaning as needed. If issues ever arise, our technicians are available to troubleshoot and repair your system promptly, so you continue to enjoy reliable, clean, and cost-saving solar power for years to come.

Rooftop photovoltaic array on a Marin County home

Contact Ongaro Today About Solar Panels

Solar energy is a sustainable, clean energy source for Marin, Sonoma, and Napa counties and all the surrounding communities in the North Bay. All you need is sunlight, technology will take care of the rest. Earn a few extra dollars to offset your energy costs and help the environment. Call Ongaro & Sons for a free consultation at 415-741-2820 or request services online today.

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.

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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 Solar

Solar on an older North Bay house usually runs into the panel before it runs into the roof.

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The electrical side is ours, not a subcontractor's

Interconnection, panel capacity and the main breaker rating are where most residential solar projects stall. Ongaro & Sons holds C-10, so that work is in-house.

Panel capacity assessed before design

Whether your service can accept the array without an upgrade is a calculation. Doing it first keeps the quote real.

Electrification planned as one project

If a heat pump, a water heater or a charger is coming, the array and the panel should be sized for all of it at once rather than upgraded twice.

Permits and utility interconnection handled

Solar means both a county permit and a utility interconnection application. We manage the sequence.

One contractor for all four trades

Ongaro & Sons has run HVAC, plumbing, electrical and solar in-house from Petaluma, family-owned since 1932.

Ongaro maintenance van
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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.

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Special Offers

Enjoy our seasonal promotions and save on your next service. Limited-time offers, don’t miss out!

Frequently Asked Questions

Can solar panels really power my whole home?

Yes, with proper sizing and efficient appliances, solar can offset most or all your energy needs.

Do I need batteries with a solar energy system?

Batteries aren't required, but they store excess energy for nighttime or outages. They add resilience and can increase energy independence.

Do solar panels work in cloudy weather?

Yes, solar panels still generate power on overcast days, though output is reduced. Battery storage helps even out supply.

Is solar right for homes with shade or limited roof space?

Possibly, systems can be optimized with high-efficiency panels or ground-mount arrays. We offer evaluations to assess feasibility.