Your Local Duct Specialists
Air Duct Services in the Bay Area, San Francisco, CA
Airstars HVAC provides professional air duct cleaning and indoor air quality solutions for homeowners in Hayward, Fremont, Union City, and the surrounding Bay Area.
Your air ducts are the lungs of your home. Every time your heater or air conditioner runs, it pulls air from your rooms, filters it, and sends it back out. Over time, dust, pet dander, pollen, and even mold spores accumulate inside the ductwork.
At Airstars, we use advanced negative-pressure technology and HEPA filtration to remove contaminants, improving the air you breathe and helping your HVAC system run more efficiently.
Is Your Home Making You Sick?
Most people spend 90% of their time indoors. According to the Environmental Protection Agency (EPA), indoor air can be two to five times more polluted than outdoor air. If your ducts are dirty, they are constantly recirculating pollutants throughout your living space.
Signs Your Ducts Need Cleaning
- Visible Dust: You see “poofs” of dust coming out of vents when the AC turns on.
- Allergy Symptoms: You sneeze, cough, or have itchy eyes when you are at home, but feel better when you leave.
- Rapid Dust Build-up: You dust your furniture, but it gets dirty again within a day or two.
- Recent Renovations: Construction work creates fine drywall dust that settles deep in your vents.
- Musty Smells: A stale or moldy odor whenever the system runs.
The Airstars “Deep Clean” Process
Not all duct cleaning services are the same. We don’t just “blow and go.” We follow a rigorous cleaning protocol to ensure your system is sanitized.
Final Test: We inspect the system again to ensure airflow is unrestricted.
Inspection: We start by inspecting your supply and return registers to assess the level of buildup.
Agitation: We use specialized rotary brushes that snake through the ductwork to dislodge caked-on dust and debris from the duct walls.
Extraction: We attach a powerful, truck-mounted vacuum to your main trunk line. This creates negative air pressure, sucking the dislodged debris out of your home and into our containment unit.
Sanitization (Optional): We can apply an EPA-approved antimicrobial mist to kill bacteria, mold spores, and viruses inside the ducts.
The Benefits of Clean Air Ducts
1. Improved Health & Allergy Relief
By removing pet dander, pollen, and dust mites, you create a safer environment for family members with asthma or respiratory issues. The American Lung Association identifies poor indoor air quality as a major trigger for lung disease.
2. Lower Energy Bills
When ducts are clogged with heavy dust, your HVAC system has to work harder to push air through. This strain increases energy consumption. A clean system allows air to flow freely, reducing the load on your blower motor and lowering your PG&E bill.
3. Extended HVAC Lifespan
Dust is the #1 enemy of heating and cooling equipment. When dust bypasses your filter and builds up on your furnace motor or AC coils, it leads to overheating and premature failure. Cleaning your ducts helps protect your expensive equipment.
Dryer Vent Cleaning Services
Did you know a clogged dryer vent is a major fire hazard?
While we are cleaning your air ducts, ask us about Dryer Vent Cleaning. Lint bypasses your dryer’s trap and builds up in the vent line leading outside. This restricts airflow, causes your dryer to run hotter (damaging clothes), and can lead to house fires.
Warning Signs Your Dryer Vent is Clogged:
You smell a burning odor in the laundry room.
Clothes take more than one cycle to dry.
The dryer gets extremely hot to the touch.


Our Achievements
Start Breathing Fresh Air Today in Hayward, Fremont, and the East Bay. Call Airstars
Don’t let dirty ducts compromise your health or your HVAC system. Schedule your professional cleaning with the team Hayward trusts.
- Hayward
- Fremont
- San Leandro
- Union City
- Oakland
- And Surrounding Areas
What Our Clients Say About Us
★★★★★
I had problems with my heater not starting I call 5 companies and Airstars was the first to respond I make appointment for the same day and the technician came with parts same day and fix the heater good quality service, thank you
Miguel B.
★★★★★
I have nothing but the highest praise for Juan. He was diligent, knowledgeable, friendly, polite, shared some great info. I had initially hired Airstars to just replace a thermostat in an old oven but ended up purchasing a completely new one. No regrets. They made it painless. Will 100% hire them again for whatever appliance needs.
EM S.
★★★★★
Rafael and team have been very responsive, thorough, and accommodating to ensure my HVAC and ductwork are back in better shape than ever. They took pictures and explained everything to me to ensure I knew every step and the extra effort they put in to create a great customer experience!
Dustin S.
Frequently Asked Questions About Duct Cleaning
How often should I have my air ducts cleaned? The National Air Duct Cleaners Association (NADCA) recommends cleaning every 3 to 5 years. However, if you have pets, smoke indoors, or have residents with allergies, you may benefit from more frequent cleaning (every 2 years).
Will duct cleaning make a mess in my house? No. We use drop cloths to protect your floors and furniture. Our vacuum equipment creates a closed loop, meaning the dust goes directly from your vents into our truck—it never enters your living space.
How long does the process take? For a standard 3-bedroom home in the Bay Area, the process typically takes 3 to 5 hours. We take the time to clean every supply vent, return vent, and the main trunk line.
Can you remove mold from ducts? Yes. If we identify mold growth, we use specialized biocide treatments to kill the mold and prevent it from returning. However, we also investigate why the mold grew (usually moisture issues) to solve the root problem.





