Want to save money and reduce your carbon footprint while enjoying improved comfort and convenience?
Go ductless.
A ductless mini split pairs an outdoor unit containing the compressor and condenser with one or more indoor air handling units that are mounted to walls or ceilings throughout your home. No ductwork is needed!
The air handler transfers the warm and cold air from the outdoor unit and circulates it directly into your home.
Ductless Mini Split Experts in Northern California
At Ongaro & Sons, our team of licensed professionals constantly looks for ways to save you money while improving your comfort. We specialize in installing, repairing, and maintaining heating, ventilation, and air conditioning (HVAC) equipment for homes of all sizes.
We’re a trusted name throughout Marin, Napa, and Sonoma counties, along with the neighboring communities in Northern California. Contact us today for a consultation about your next home improvement.
When to Consider Installing a Ductless Mini Split
Ductless mini split systems are an efficient, flexible alternative to traditional HVAC setups, especially when ductwork is limited or space needs vary. Whether upgrading comfort in a single room or improving overall efficiency, a mini split could be the perfect solution.
Consider installing one if you’re looking to:
Creating an HVAC zoning system is perhaps the most common reason to install a ductless mini split. Instead of heating or cooling your entire house with a central system, you can install a mini split in a specific room (like a bedroom, living room, or home office) and only heat or cool that zone when it's occupied. This saves energy and money by not conditioning unused spaces.
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.
Ductless Mini Split Installation or Replacement
Flexibility makes ductless mini splits stand out from conventional HVAC systems. You are no longer tethered to air ducts. Install your system anywhere in your home. Go ductless in your garage and turn it into the ultimate workout room. Convert your basement into a rec room. Go ductless anywhere in your home.
Unless you have experience working with refrigerant lines and high-voltage electrical connections, we strongly recommend having one of our professionals install or replace your ductless mini split. Your safety is our top concern—you can count on us to get the job done right.
Five Key Benefits of Mini Split Systems in Northern California
Here are five great reasons to consider going ductless:
You can install a mini split practically anywhere in your home. A conduit containing a refrigerant line, condensation line, and power cord connects the indoor and outdoor units. Want to add some comfort to your attic, basement, or garage without having to extend your ductwork? Go ductless.
Contact Ongaro & Sons today for a consultation. Our experts will recommend the best setup for your home based on the layout and square footage. Don’t miss out on our convenient financing options (subject to approved credit) that make it easy to create a dream house for yourself and your loved ones.
Ductless Mini Split Repairs
Whether your system has a clogged filter or a faulty connection, you can count on our repair to fix it. We work with all makes and models—we can fix it even if someone else installed it.
Before we start any work, you’ll receive a thorough explanation of what we plan to do. We provide accurate, upfront quotes to avoid any hidden surprises. We also promise never to replace a part unless necessary, or we can demonstrate significant cost savings.
Ductless Mini Split Maintenance
Preventative maintenance plays a critical role in the upkeep of all your HVAC equipment. That especially holds true with ductless mini splits. These systems are incredibly reliable—but like any piece of machinery with moving parts, they require tune-ups and inspections.
You will need to wash the system filters at least once a month—more often if you have pets or anyone who smokes in your home. These reusable filters can clog up quickly, so be sure to clean them regularly.
Enjoy a worry-free way to maintain your HVAC equipment by joining our Ongaro Maintenance Plans. We tailor these plans to fit your budget and needs. Save money on parts and repairs. Plus, you’ll enjoy priority service.
Call Ongaro & Sons Today and Go Ductless
Don’t miss out on a chance to save money and improve your comfort. Whether you live in Healdsburg, Larkspur, Bodega, or any of the other nearby communities in Northern California, go ductless today! Call Ongaro & Sons at 415-741-2820 or request services online today.
5%
Member Discount
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.
Special Offers
Enjoy our seasonal promotions and save on your next service.
Limited-time offers—don’t miss out!
Free MacBook Air
With HVAC Upgrade*
$700 Off
Hydro Jet Sewer Cleaning*
FREE
Camera Inspection*
$69
HVAC System Diagnostic*
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Absolutely. Ductless mini splits are ideal for older homes without existing ductwork or when you want to avoid an invasive installation. They offer an efficient, non-invasive heating and cooling solution without the need for major renovations or structural changes.