Think about the air you breathe every day—how clean is it?
Most people spend the vast majority of their days indoors, and much of that time is spent at home. Yet, it’s easy to overlook indoor air quality (IAQ)—we often think about the temperature of our homes and even the water quality. But how often do you think about the air you are breathing?
Our team at Ongaro & Sons has practical and sustainable suggestions to improve your indoor air quality. We specialize in creating comfortable homes throughout Northern California. We provide fast, quality service to customers in Marin, Napa, and Sonoma counties—and all the neighboring communities in between.
Let’s take a look at a few steps you can consider to improve the air quality inside your home.
What Causes Poor Indoor Air Quality?
The EPA defines indoor air pollution as either particulate matter or gas—some small enough to be inhaled and cause sinus issues, burning eyes, bronchitis, and respiratory illness. Examples include dust, smoke, pollen, pet dander, mold, viruses, and bacteria.
Common sources include exhaust fumes, paints, building materials, furniture, adhesives, cleaning supplies, tobacco smoke, pesticides, and other chemicals.
Other contributors could be inadequate ventilation, poorly maintained heating, ventilation, and air conditioning (HVAC) systems, and excessive moisture, creating mold and bacteria.

IAQ Products for Northern California Homes
Controlling the source of air pollution and providing adequate ventilation are both necessary to improve your air quality. Here are some products that we often install throughout Northern California that are proven to help IAQ:
A whole-house air filtration system seamlessly integrates with your ductwork to protect your entire home. These systems work especially well if someone in your home suffers from allergies or a respiratory condition. They integrate directly into your ductwork for comprehensive coverage.
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.
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.
How Can You Recognize Poor Indoor Air Quality?
Sore throats, stuffy noses, constant headaches—these symptoms of poor indoor quality are often mistaken for respiratory issues. Continual exposure to indoor pollutants can lead to more serious health consequences like heart disease, chronic respiratory illnesses, and even cancer.
Take control of the air you breathe. Contact our team to schedule a consultation to determine how we can improve your indoor air quality with specialized IAQ services and products.
In the meantime, here are some DIY methods to improve your IAQ:
Identify and remove or reduce the origins of indoor air pollution, such as scented products, smoking indoors, and products that release VOCs (Volatile Organic Compounds) like paints, cleaning supplies, and air fresheners.
Repairing Your Indoor Air Quality System
Give us a call right away if you detect an issue with your IAQ equipment. Whether your system starts making a strange noise or is not responding correctly, our team will quickly troubleshoot the problem and resolve it.
Maintaining Your Indoor Air Quality System
Preventive maintenance is vital to the performance of all your air quality equipment. Remember to change your equipment filters on time, and for more complex tasks, let’s work together to create a maintenance schedule that fits your needs and budget.
Be sure to ask about our Ongaro Maintenance Plans that offers significant cost savings on service calls, repairs, and parts. Sign up today and enjoy peace of mind knowing a trusted professional is watching over your HVAC equipment.
Call Your Indoor Air Quality Experts Today
Take steps to control the air quality inside your home. Ongaro & Sons is a trusted source for all your home comfort needs in Mill Valley, Cloverdale, Tiburon, and all the surrounding communities in Napa, Marin, and Sonoma counties. Call us at 415-741-2820 or request services online today.
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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 Plan Benefits
Member benefit of 5% discount on repairs and replacements.
Proactive maintenance identifies and addresses issues before they become big problems.
Courtesy reminder calls for scheduled services and appointments.
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Frequently Asked Questions
Yes—dust, allergens, mold spores, and other contaminants can accumulate in your ductwork and circulate through your home. Regular duct cleaning helps improve air quality, reduce allergy symptoms, and support a healthier home environment.



