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.
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Before
AfterAir Duct Cleaning Company in Half Moon Bay, CA
Air duct cleaning in Half Moon Bay runs $350 – $650 for a typical single-system home, with most jobs completed in one visit because crews are dispatched from our San Francisco Bay Area office. The marine fog belt here creates conditions inland Bay Area duct cleaners rarely see: persistent moisture inside ductwork that turns dust into a breeding ground for mold and mildew. We’re Hollis Air Duct Cleaning, and we’ve built our Half Moon Bay work around that reality. Call (361) 326-5060 for a free estimate.
Why Half Moon Bay Homes Are Different
Half Moon Bay sits squarely in the marine fog belt, where relative humidity stays elevated year-round and summer afternoons often drop below 60 degrees while inland cities bake. That cool, damp air moves through ductwork and condenses on metal surfaces, especially in the older housing stock that dominates here. Many homes in neighborhoods like El Granada and Miramar were built in the 1950s through 1970s as ranch-style houses or coastal cottages, with original galvanized or flex duct systems that weren’t designed for decades of salt-laden air and sand infiltration.
The result is what locals call “fog funk,” a musty odor that no air freshener fixes because it lives inside the ducts themselves. Salt accelerates corrosion in metal components, and sand particles abrade flex duct interiors, creating collection points for organic material. Newer developments like Ocean Colony present the opposite problem: tighter construction traps moisture with nowhere to go, making antimicrobial treatment after cleaning more of a standard need than a premium upsell. In Half Moon Bay, duct cleaning without addressing moisture is only half the job.
Our Main Half Moon Bay Services
Most Half Moon Bay homeowners call us for one of three jobs, each shaped by the coast’s unique conditions.
Air Duct Cleaning in Half Moon Bay
Our air duct cleaning in Half Moon Bay starts with a rotary brush system from Rotobrush that physically scrubs the interior of supply and return lines, followed by negative-air extraction with Nikro equipment that pulls loosened debris out of the home entirely. Because of the fog belt’s moisture load, we typically include antimicrobial treatment as part of the standard scope here, not an add-on. We inspect for corrosion damage that salt air accelerates, especially in older galvanized systems. Air Duct Cleaning in Half Moon Bay is priced by the system, not by the vent, and we write that price down before any work starts.
Dryer Vent Cleaning in Half Moon Bay
Dryer vent cleaning is critical in Half Moon Bay because coastal humidity keeps lint damp, and damp lint compacts into hard blockages rather than blowing through. That compaction turns a routine maintenance item into a genuine fire hazard. We run a rotary brush through the full vent line to the exterior termination, then verify airflow with a meter. If the vent line is damaged by salt corrosion or improperly routed through crawl spaces, we note it in writing. Dryer Vent Cleaning in Half Moon Bay typically takes 60 – 90 minutes and carries its own written price.
Duct Sealing in Half Moon Bay
Duct sealing in Half Moon Bay addresses the leaks that draw in garage fumes, crawl space moisture, and attic dust, problems made worse when the fog belt’s high humidity finds every gap. We use mastic sealant and metal-backed tape on accessible joints, then pressure-test the system to verify results. In older homes with deteriorated flex duct, sealing is often the difference between a system that moves conditioned air and one that heats the crawl space. Duct Sealing in Half Moon Bay includes a written scope and price before we begin.
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 Half Moon Bay
We stock parts and filtration products from Honeywell, Aprilaire, and Abatement Technologies, and we service all major residential HVAC brands common in coastal California homes. Most replacement filters and basic components are available same-day through our San Francisco Bay Area supply chain. our brands
Pricing for Air Duct Cleaning Company in Half Moon Bay, CA
| Service | Typical range in Half Moon Bay |
|---|---|
| Single-system air duct cleaning (up to 12 vents) | $350 – $550 |
| Single-system air duct cleaning (13 – 20 vents) | $450 – $650 |
| Two-system home air duct cleaning | $650 – $950 |
| Antimicrobial treatment (standard inclusion in fog belt) | $75 – $125 |
| Dryer vent cleaning (standard reach) | $150 – $250 |
| Dryer vent cleaning with rooftop termination | $200 – $325 |
| Duct sealing (per system, accessible ductwork) | $400 – $700 |
| Duct sealing with flex duct replacement sections | $600 – $1,100 |
Prices in Half Moon Bay run toward the higher end of our Bay Area ranges when homes have original galvanized duct that requires careful handling, or when crawl space access is limited by moisture barriers and tight clearances. The price we write down before work starts is the price you pay. No per-vent add-ons, no equipment fees that appear at the door.
Neighborhoods We Serve in Half Moon Bay
We work across the full Half Moon Bay area, from the older coastal cottages near the harbor to the newer construction inland. Most appointments are scheduled with arrival windows that respect the distance from our dispatch point.
- El Granada
- Miramar
- Ocean Colony
- Midcoast (south of Highway 92)
- Princeton-by-the-Sea
Service Area – Cities Near Half Moon Bay
Our crews regularly work the coastal corridor and inland Peninsula communities adjacent to Half Moon Bay. We also serve El Granada, CA, Burlingame, CA, Millbrae, CA, and Belmont, MA. Scheduling is coordinated from our San Francisco Bay Area office with local crews assigned to minimize drive time and keep arrival windows reliable.
Serving Half Moon Bay, CA - Our Local Coverage Area
We’re based in the Half Moon Bay 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 Half Moon Bay
No permit is required for routine air duct cleaning or dryer vent cleaning in Half Moon Bay. Duct sealing that involves modifying or extending ductwork may require a permit from the city; we handle that determination and any paperwork as part of our written scope. Call (361) 326-5060 if your project involves system changes.
We typically book 3 – 5 days out for standard appointments in Half Moon Bay, though we keep slots open for urgent dryer vent blockages. The 365-Day Done Right Promise applies regardless of how far ahead you book. Call (361) 326-5060 to check current availability.
Yes, we cover the full Half Moon Bay area including Princeton-by-the-Sea and the Midcoast communities. Drive time from our dispatch point is factored into scheduling, and we confirm your location when you call so you receive an accurate arrival window. Call (361) 326-5060 to confirm coverage for your address.
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 Half Moon Bay Customers Say
"Dryer vent was packed with lint and took two hours to dry a load. Cleaned it out from the roof cap down. One cycle again."
- Paula Q."No sales pitch. Told me which parts of the system were fine and only cleaned what needed it."
- Ted L."They checked each section with a camera and showed me the dust before and after. Thorough and honest."
- Nicole H.