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
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Before
AfterAir Duct Cleaning Company in Alamo, CA
Air duct cleaning in Alamo typically runs $400 – $800 for a whole-home system, with most jobs completed in a single visit. Homes here are larger than average, with complex duct layouts that demand more time and specialized equipment than standard suburban tract housing. We dispatch crews from our San Francisco Bay Area office to serve Alamo directly, and every job starts with a written price that does not change once work begins. Call us at (361) 326-5060 for a free estimate.
Why Alamo Homes Are Different
Alamo’s housing stock is not typical East Bay suburbia. Most properties are large, custom-built single-family homes on half-acre to multi-acre lots, many dating from the 1960s through the 1990s with some newer luxury construction mixed in. These homes frequently run multiple HVAC zones with long duct runs stretching through unconditioned attics and crawlspaces, and older properties may still have original galvanized or early flex ductwork that degrades over time.
The Mediterranean climate here means heavy air conditioning use through hot, dry summers and heating through mild, wet winters. That constant cycling pulls in pollen from the surrounding valley oak woodlands and dust from the grassy Diablo Valley hills. During fire season, smoke and ash can infiltrate duct systems even when homes are miles from the active burn. We’ve found that ducts serving second-floor bedrooms and bonus rooms are often the most neglected, homeowners rarely access these attic runs, and the extreme summer heat buildup in those spaces degrades flex duct insulation, causing energy loss and dust infiltration long before obvious symptoms appear.
Our Main Alamo Services
Alamo homeowners call us most often for these three services, each handled with The Garrison Standard of written pricing, background-checked uniformed technicians, and our 365-Day Done Right Promise.
Air Duct Cleaning in Alamo
Our Air Duct Cleaning in Alamo service addresses the full supply and return network, from the main trunk lines in your attic or crawlspace down to every register. In Alamo, we typically deploy rotary brush systems from Rotobrush combined with Nikro negative-air machines to dislodge and extract dust, pollen, and wildlife debris that accumulates in long duct runs. We pay special attention to second-floor attic lines, where heat-degraded flex duct can release insulation particles into the airstream.
Dryer Vent Cleaning in Alamo
Our Dryer Vent Cleaning in Alamo service removes lint buildup from the dryer connection through the exterior termination. Alamo’s larger homes often have longer vent runs, sometimes 25 feet or more through walls and attic spaces, which increases fire risk and reduces dryer efficiency. We clean the full run with rotary tools and verify airflow at the exterior cap before we leave.
Duct Sealing in Alamo
Our Duct Sealing in Alamo service closes leaks in the duct network using mastic and specialized sealants applied to joints, seams, and degraded flex connections. In Alamo’s older homes with original galvanized or early flex ductwork, sealing can restore system efficiency and reduce the dust and attic air that leaks into conditioned spaces. We identify leaks with pressure testing and seal only what needs sealing, with the scope and price written before we start.
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 Alamo
We stock parts and filtration products from Honeywell, Aprilaire, and Abatement Technologies, and our crews arrive with Rotobrush and Nikro equipment on every truck. Most filter replacements and minor hardware needs are handled same-visit. See our brands for the full roster.
Pricing for Air Duct Cleaning Company in Alamo, CA
| Service | Typical range in Alamo |
|---|---|
| Whole-home air duct cleaning (single system) | $400 – $600 |
| Whole-home air duct cleaning (dual system) | $600 – $800 |
| Dryer vent cleaning (standard run) | $150 – $250 |
| Dryer vent cleaning (extended run, 20+ ft) | $250 – $350 |
| Duct sealing (partial system) | $300 – $500 |
| Duct sealing (whole-home) | $500 – $900 |
| HVAC filter replacement (standard) | $25 – $75 |
| Register and vent cover deep clean | $75 – $150 |
Prices in Alamo trend toward the higher end of these ranges when homes have multiple zones, long attic runs, or degraded flex duct that requires extra handling time. The price we write down before work starts is the price you pay. No per-vent add-ons, no equipment fees that appear after we’re inside.
Neighborhoods We Serve in Alamo
We work across Alamo’s full residential area, from the established estates near Livorna Road to the newer construction off Stone Valley Road. Most Alamo appointments are scheduled within a few days, with dispatch coordinated from our Bay Area office to keep arrival windows tight.
- Alamo Oaks
- Round Hill Country Club area
- Livorna Road estates
- Stone Valley Road corridor
- Downtown Alamo residential
Service Area – Cities Near Alamo
Our crews regularly work the full Diablo Valley corridor. We schedule appointments in Walnut Creek, CA, Moraga, CA, Lafayette, CA, and Danville, CA from the same dispatch base, so neighboring cities are never an afterthought.
Serving Alamo, CA - Our Local Coverage Area
We’re based in the Alamo 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 Alamo
Most Alamo estates are not governed by HOAs, but a few newer developments and country club-adjacent properties do have architectural review requirements for exterior vent modifications. We handle standard interior duct cleaning without exterior changes, so HOA notice is rarely needed. If your job requires exterior vent replacement, we’ll flag it during the estimate and advise on any notice requirements.
We typically schedule Alamo appointments within three to five business days, with dispatch from our Bay Area office. Live phone answering means you can book any time, and we’ll confirm your arrival window in writing. Call (361) 326-5060 to check current availability.
Yes. Many Alamo homes run two or three separate systems, and we price each system individually so you know exactly what each costs before we start. Our negative-air equipment and rotary brush systems scale to larger jobs, and we schedule adequate time so crews are not rushing through long duct runs.
Ready for a written estimate? Call Hollis Air Duct Cleaning at (361) 326-5060. We’ll ask about your home’s size, system count, and any concerns you’ve noticed, then give you a flat price range with no obligation. If you hire us, that price is locked in before we touch a single vent.
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 Alamo Customers Say
"Duct sealing along with the cleaning cut our summer bill. Straight talk and fair price."
- Gwen O."Sealed some leaking duct joints in the crawl space with mastic. Rooms that were always cold now get air."
- Ronald W."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.