Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
Air Duct Cleaning Company in Hillsborough, CA
Air duct cleaning in Hillsborough means working inside 5,000 to 10,000+ square foot estate homes, many built between the 1930s and 1960s with original galvanized trunk lines still moving air through the house. The scale is fundamentally different from neighboring Burlingame or San Mateo. You’re not looking at a standard three-bedroom with one return. You’re looking at multi-era duct systems, long runs, and the kind of work that needs commercial-grade equipment and technicians who’ve seen what mid-century construction actually looks like inside the plenum. We’re Morton’s Air Duct Cleaning, and we work on Hillsborough homes with that reality in mind from the first inspection to the final photo of the clean-up. Call (323) 918-4345 for a written price before any work starts.
Why Hillsborough Homes Are Different
Hillsborough’s zoning code has kept the town to single-family estates since before most of these homes existed. There are no commercial buildings, minimum lot sizes are large, and the result is a dense concentration of custom homes from the 1930s through the 1960s, many of them never duct-cleaned in their entire history. When forced-air HVAC arrived in the 1970s and 1980s, retrofits were dropped into homes that originally used gravity-fed floor-register systems. That left abandoned plenum cavities and sealed-off duct stubs inside wall chases, dead zones that collect decades of debris and only show up during a thorough inspection. We find these on a regular basis in Hillsborough, far more often than anywhere else on the Peninsula.
The climate compounds it. Hillsborough’s mid-Peninsula position means the summer marine layer and morning fog from the Bay cycle through on a regular schedule, pushing humidity into crawl-space and attic duct sections. Older uninsulated metal ducts in the lower-elevation neighborhoods near the Burlingame border are particularly prone to interior condensation, which accelerates mold and mildew accumulation between cleanings. A duct system that holds moisture is a different job from one that stays dry, and pricing reflects that.
Our Main Hillsborough Services
Most Hillsborough homeowners call us for one of two jobs, each with its own page because each deserves its own detail.
Air Duct Cleaning in Hillsborough
Hillsborough’s large estates typically mix original galvanized trunk lines with later-added flex-duct branch runs through attics and crawl spaces. Every transition joint between those materials is a collection point for dust, pet hair, and construction debris from decades of remodels. Our Air Duct Cleaning in Hillsborough service uses Rotobrush and Nikro equipment built for extended runs, and we provide a written price before any work starts so you know the full cost before we arrive. Shoe covers and drop cloths go down before anything else, and we work around nap schedules when there are kids in the house.

Dryer Vent Cleaning in Hillsborough
Long dryer vent runs are common in Hillsborough, especially in homes where the laundry room sits on an interior wall or the vent exits through the roof. A restricted dryer vent in a home this size means longer dry times and lint building up in places you can’t see. Our Dryer Vent Cleaning in Hillsborough service clears the full run from the dryer to the exterior termination, and every job includes a photo of the clean-up before the crew leaves. If it’s not done right, the 365-Day Done Right Promise means we make it right.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Hillsborough
Hillsborough homes carry high-end HVAC equipment, and we service the brands most common in the area: Nikro, Honeywell, Aprilaire, and Abatement Technologies. See our brands page for the full list. We keep common replacement parts for these systems in local stock, so most parts issues on a scheduled job don’t add a second trip.
Pricing for Air Duct Cleaning Company in Hillsborough, CA
| Service | Typical range in Hillsborough |
|---|---|
| Air duct cleaning, single system | $450-$900 |
| Air duct cleaning, whole home (5,000 sq ft) | $900-$1,600 |
| Air duct cleaning, whole home (10,000+ sq ft) | $1,600-$2,800 |
| Additional return or supply drop | $45-$90 each |
| Mold or mildew treatment during cleaning | $250-$600 |
| Dryer vent cleaning | $150-$300 |
| Dryer vent cleaning, roof termination | $200-$400 |
| Rooftop HVAC unit access (where applicable) | $75-$150 |
What pushes price up in Hillsborough is mostly square footage and access. A 10,000-square-foot home with multiple systems, cathedral ceilings, and attic plenum runs takes more time and equipment than a single-system house, and roof-terminated dryer vents add ladder time with safety rigging. Whatever the scope, you get a written price before any work starts, on every visit, with no surprises on the invoice.
Neighborhoods We Serve in Hillsborough
We work throughout Hillsborough, from the lower-elevation streets near the Burlingame border up into the hillside estates. Homes here vary by era and elevation, but the common thread is scale and the need for a careful crew.
- Lower Hillsborough (near Burlingame border)
- The Tobin Clark Estate area
- Hillsborough Park neighborhood
- Upper Hillsborough hillside estates
- Ralston Avenue corridor
In most cases, scheduling for Hillsborough jobs happens within a week of your call, and the written estimate is confirmed before the crew arrives.
Service Area – Cities Near Hillsborough
Morton’s Air Duct Cleaning serves Hillsborough and the surrounding Bay Area from our San Francisco Bay Area office. Families in nearby cities regularly call us for the same detailed work, including San Jose, CA, San Francisco, CA, Los Angeles, CA, and San Diego, CA. A live person answers the phone 24/7, so if you’re unsure whether we cover your street, call (323) 918-4345 and ask.
Serving Hillsborough, CA - Our Local Coverage Area
We’re based in the Hillsborough area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Air Duct Cleaning Company in Hillsborough
Most Hillsborough jobs are scheduled within a week of your call. Large estate homes need a longer time block, typically a full day, so we’ll confirm the window when you book. Call (323) 918-4345 for a written estimate and a firm date.
Air duct and dryer vent cleaning does not require a permit in Hillsborough. Some larger estates are in neighborhoods with private road agreements, which can affect where trucks park. We’ll confirm access details before the crew arrives.
We cover the entire town of Hillsborough, from the Burlingame border up to the ridge. If you’re inside Hillsborough town limits, we’ll be there. Call (323) 918-4345 with your street and we’ll confirm the schedule.
What happens when you call
- 1A real person answersNo phone trees - talk to a local air duct cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Hillsborough Customers Say
"Friendly, calm crew that clearly cared about the house. Covered their shoes, protected the floors, and double checked they'd closed up every vent cover properly. Would have them back."
- Omar Zaid"Ducts and dryer vent both. They put runners down the whole hall and wore booties. Spotless after, and they showed me photos of what came out. Worth every penny."
- Bonnie Vo"Spotless work. They laid drop cloths everywhere and I was honestly impressed there was zero mess at the end. Showed me the dirt they pulled out so I could see it was worth it."
- Shelby Dunham




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