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Indoor Air Quality Services

Indoor Air Quality Services in Marin, Sonoma & Napa County

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 the North Bay. 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.

All work is performed under active California contractors license #215233.

IAQ Products for Marin, Sonoma & Napa County 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 the North Bay that are proven to help IAQ:

Whole-Home Air Filtration System

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.

Air Cleaner

If you suspect your IAQ is lacking, an air cleaner could be the perfect solution. Air cleaners include different types of air purification systems, each with its own specific uses.

Whole-House Humidifier

IAQ isn't just about pollutants in the air; it also includes your general comfort. Balance your indoor humidity levels with a whole-house humidifier. Dry air can lead to sore throats, stuffy noses, an increased risk of illness, and cause damage to your wood furniture and flooring. The ideal humidity level is between 30 and 50 percent.

Whole-House Dehumidifier

Muggy hot weather is a drag. Your air conditioner works hard to remove some excess moisture in the air. Another solution is to install a whole-house dehumidifier. When the humidity level is out of balance in your home, everyone suffers.

Energy Recovery Ventilator

If you find that your indoor air is stale, bring some fresh air indoors. But how do you do so without raising your energy bill? An energy recovery ventilator (ERV) is a great solution for improved comfort without increased associated costs.

Heat Recovery Ventilator

A heat recovery ventilator (HRV) works much like an ERV in that it uses outgoing stale air to precondition incoming fresh air. You enjoy fresh air without stressing your HVAC system and paying higher energy bills. These systems integrate with your ductwork to create an added layer of comfort.

Ultraviolet (UV) Germicidal Light

A UV germicidal light is needed to kill biological contaminants such as mold spores, mildew, and bacteria. Hospitals and industrial settings have used these systems for years, and now the technology is available for homes.

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:

  • Eliminate pollution sources: 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.
  • Maintain HVAC systems: regularly change or clean air filters as per manufacturer guidelines and seal any leaks in your ductwork to ensure efficient operation and prevent contaminants from circulating.
  • Say no to dust: vacuum and dust your home frequently to minimize the accumulation of allergens and particulate matter.
  • Manage moisture: drain and clean the reservoirs of dehumidifiers on a routine basis to prevent mold and mildew growth, and regularly clean refrigerator drip pans for the same reason.
  • Enjoy some fresh air: open windows and use exhaust fans to bring in fresh air and expel pollutants, especially when cooking or cleaning.
Indoor air quality monitor showing CO2 and particulate readings

Repairing and Maintaining 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.

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.

Replacement clean air filter for heating/cooling unit.

Schedule Your Indoor Air Quality Service

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 now at 415-741-2820 or book your appointment online for fast, reliable IAQ 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.

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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 Indoor Air Quality

Wildfire smoke made this a real question in the North Bay, and the answers are mostly mechanical.

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Filtration matched to what the system can actually take

A high MERV filter in a system that cannot pull through it starves airflow and can damage equipment. We check static pressure before recommending a filter, not after.

Smoke intrusion treated as an envelope problem too

During a smoke event the leaks matter more than the filter. Sealing returns and addressing the largest infiltration paths does more than upgrading a cartridge.

Ventilation and filtration kept distinct

Fresh air and clean air are different requirements with different equipment. Selling one as the other is common and leaves the actual problem in place.

Whole-house options weighed against portable ones

Sometimes a room unit is the right answer and a whole-house system is not. We will say which, and why, for your house.

C-20 licensed HVAC contractor since 1932

Ongaro & Sons is Diamond Certified and BBB Accredited with an A+ rating, working across Marin, Sonoma and Napa Counties.

Ongaro maintenance van
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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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Value That Lasts

With Ongaro & Sons, you’re investing in quality, integrity, and service that stands the test of time. Explore our current promotions and see the difference real value makes for your HVAC, plumbing, and electrical needs.

Frequently Asked Questions

Can dirty air ducts affect indoor air quality?

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.

Is indoor air quality worse in the winter?

Yes, reduced ventilation in California’s colder months (to keep a house warm) traps pollutants inside. That’s why it’s smart to schedule an IAQ checkup from Ongaro & Sons.

What impacts indoor air quality?

Everything from dust to humidity and even your HVAC system can affect the indoor air quality in your home. Pollutants can come from a variety of sources, including: Dust, pet dander, and pollen Mold and mildew Household cleaning products Tobacco smoke Poor ventilation Combustion appliances (gas stoves, furnaces) Dirty air ducts or clogged filters

What indoor air quality services do you offer?

We offer indoor air quality testing, IAQ product installation, and duct cleaning. From installing air scrubbers, humidifiers, dehumidifiers, and whole-home filtration systems to providing HEPA air filter subscriptions, we have the tools and expertise to improve the air in your home.