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.
Fast, Reliable HVAC Cleaning Across Portola Valley
HVAC cleaning in Portola Valley typically runs $425 – $680 per system for a full furnace and AC vent cleaning, and most jobs are completed in a single visit. The price covers everything: supply ducts, return ducts, the air handler, blower, and coils. We give you one flat number per system before any work starts. Call (737) 727-2314 to schedule a camera inspection and get your written quote.
We know Air Duct Cleaning in Portola Valley homes. The ranch houses off Portola Road with their oak-shaded duct runs, the newer hillside builds above Los Trancos with systems that pull outside air constantly, the weekend retreats along Alpine Road that sit unoccupied for months. Each one ages differently. That’s why we never quote per vent and never guess. We look first, then price.
Why Cardinal Air Duct Cleaning Is Portola Valley’s Preferred HVAC Cleaning Company
Portola Valley homeowners tend to do their homework. They ask about the process, the equipment, and what happens to the debris before they book. That’s exactly the conversation we like to have. Every job starts with a camera inspection, runs on professional-grade equipment including Rotobrush rotary brush systems and Nikro HEPA vacuum extraction, and ends with before-and-after photos of your own ducts. The written price you get before we start is the price on the invoice. No per-vent games, no add-ons at the door.
Omar Haddad leads our HVAC Cleaning team, and he insists on one standard: if we can’t show you the work, it didn’t happen. That’s why every Portola Valley job includes photo documentation of the trunk lines, returns, and air handler before and after. You see what we removed. We’re part of the Relay Home Co. family, founded 2005, and we operate under The Relay Visibility Guarantee: live trackable arrival, written pricing, photo proof, and a digital invoice you can pay from your phone.
The 365-Day Done Right Promise backs every job. If the work isn’t right within a full year, we return and correct it at no charge. Not a pro-rated credit. Not a re-cleaning fee. We come back, and we make it right.
Furnace Cleaning in Portola Valley
Furnace cleaning in Portola Valley starts with the blower and heat exchanger, because that’s where the air you breathe actually passes through. On a typical job we remove accumulated dust from the blower wheel, clean the burner area, wash the evaporator coil, and pull debris from the trunk lines with negative-pressure extraction. That means the loosened material goes straight into the HEPA-filtered vacuum, not back into your living room. Most furnace cleanings here run $275 – $450 as part of a full-system cleaning, and the work takes about three to four hours on a single system.
Blower and Heat Exchanger Cleaning
A dirty blower wheel can move 30% less air across the heat exchanger, and in Portola Valley’s canopy-shaded homes the problem compounds. You run the system less, so dust settles longer, gets packed onto the blower fins, and eventually the motor works harder to push the same amount of air. We remove the blower assembly, clean each fin, and check the heat exchanger for cracks while it’s open.
Why Ranch Homes Off Portola Road Need This More Than They Think
The older homes off Portola Road and around Westridge often run their furnaces only three or four months a year. That sounds like light use, but it’s deceptive. Ducts sit warm and dark for eight months at a stretch, and Portola Valley’s tree coverage brings a steady supply of leaf litter, oak pollen, and occasionally rodent activity around duct penetrations. A furnace that rarely runs still circulates whatever settled in there when it does fire up.
AC Vent Cleaning in Portola Valley
AC vent cleaning in Portola Valley means more than wiping register covers. We remove each grille, clean the supply and return vents back to the trunk line, agitate the interior duct walls, and extract everything under continuous negative pressure. For homes in the hills above Los Trancos or along Alpine Road where the AC runs long summer hours, the exterior dust load is higher, and vent cleaning usually runs $200 – $350 as part of the full system clean. Register-only cleaning never touches the actual problem.
Supply and Return Trunk Lines
The trunk lines are the main arteries of your system, and this is where per-vent pricing quietly cheats you. A contractor charging by the vent has every incentive to count high and clean shallow. We price one flat number per system, then clean the entire trunk line regardless of how many branch runs it feeds. Whether your Portola Valley home has nine vents or twenty-two, the price doesn’t shift based on the count.
Evaporator Coil Treatment
After mechanical cleaning we apply a coil treatment to the evaporator surfaces. In hillside homes above Portola Valley where wildfire-season particulate already coats everything, this treatment slows the buildup of dust, so the coil transfers heat more efficiently between cleanings. It’s not a permanent fix, and we’ll tell you the honest interval for your specific system.
Trusted Brands We Service in Portola Valley
We work on systems in Portola Valley from every major manufacturer: Carrier, Trane, Lennox, Rheem, Goodman, Bryant, and York. On the filtration side we stock and service Honeywell and Aprilaire products, and our cleaning equipment includes Rotobrush brushing systems, Nikro HEPA vacuum units, and Abatement Technologies containment when a job calls for sealed-off cleaning. You don’t need to know the model number before you call. Our techs identify it on arrival, and we carry the common filters and coil treatments for most residential systems serving the Portola Valley area.
Common HVAC Cleaning Problems We See in Portola Valley Homes
- Rodent nesting in return ducts. The older ranch homes off Portola Road sit low to the ground under dense oak canopy, and their crawl space or attic returns are a prime target. We routinely pull acorns, shredded insulation, and dried droppings from trunk lines that haven’t been opened in years.
- Exterior particulate loading in hillside homes. Properties above Los Trancos and along Alpine Road sit closer to open ridgeline exposure, so constantly-running air handlers pull fine dust, pollen, and wildfire-season ash straight into the ducts.
- Blower motor dust caking from intermittent use. Portola Valley’s temperate climate means many systems idle for six or eight months at a time. The dust that settled in October is still there in June, and it blocks airflow at the blower wheel.
- Unbalanced pressure from closed-off rooms. Many Portola Valley homes have converted porches or under-heated additions along 280’s western edge, and the original duct design rarely accounts for them. We check supply and return balance while we’re inside the system.
Pricing for HVAC Cleaning in Portola Valley, CA
A full HVAC cleaning for a single system in Portola Valley runs $425 – $680. That covers furnace cleaning, AC vent cleaning, blower, evaporator coil, and trunk lines, priced as one flat number per system. Households with two systems fall in the $750 – $1,100 range depending on duct length and system condition. Duct-only cleaning without furnace work runs lower: $250 – $400. The price you’re quoted after the camera inspection is the price on the invoice. If the ducts are clean and don’t need service, we’ll say so. Estimates are free. Call (737) 727-2314 and we’ll bring the camera.
We Also Serve Cities Near Portola Valley
If you’re just outside town, we regularly work with homeowners across Portola Valley and the surrounding communities: Stanford, Menlo Park, Los Altos, and Atherton. Scheduling is coordinated from our Los Angeles office, and local crews serve the entire peninsula area. Call the same number for all locations.
Serving Portola Valley, CA - Our Local Coverage Area
We’re based in the Portola Valley 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 HVAC Cleaning in Portola Valley
A full HVAC cleaning in Portola Valley runs $425 – $680 per system, with duct-only work starting around $250. Two-system homes typically fall between $750 and $1,100. We give one flat price per system after a camera inspection, and that price doesn’t change at the door. Call (737) 727-2314 for an exact quote, and the estimate is free.
Not every home does. If your ducts are clean, we’ll say so and send you the camera footage. But Portola Valley’s mix of oak canopy shade and long unused seasons creates a real problem in many homes here, especially older ranch structures off Portola Road where returns sit at ground level and rodents find their way in. If we remove debris, you’ll see the before-and-after photos yourself.
We inspect first with a camera. Then we set up negative-pressure extraction, so the loosened debris goes into the vacuum, not your living room. We remove and clean each vent grille, agitate the branch lines and trunk lines, clean the blower and coils, and apply a coil treatment. Finally, we run the camera again and send you the photos. The whole job on a single system takes about three to four hours.
We don’t promise same-day service, because a proper HVAC cleaning is a scheduled job that deserves a real appointment. What you will get is a live trackable arrival window and a written price before any work starts. Call (737) 727-2314 and we’ll schedule you for the next available slot that works. A live person always answers.
Yes to both. We stock and service Honeywell and Aprilaire filtration products, and we clean dryer vents as one of our core services. In fact, Portola Valley homes with long dryer runs through crawl spaces should have the vent brushed and extracted professionally every 12 to 18 months. We can do the HVAC and the dryer vent in the same visit.
Written by Omar Haddad, Owner at Cardinal Air Duct Cleaning, serving Portola Valley through The Relay Visibility Guarantee. Part of the Relay Home Co. family, founded 2005.
Call (737) 727-2314 today to schedule your free camera inspection and get a written, flat-rate quote for HVAC Cleaning in Portola Valley.




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