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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AfterFast, Reliable HVAC Cleaning Across Redwood City
HVAC cleaning in Redwood City typically costs $450 – $850 for a complete system cleaning of a standard single-family home, and the job usually takes 3 – 5 hours from setup to final camera inspection. We work throughout Redwood City’s neighborhoods every week, from Redwood Shores and Emerald Hills to Friendly Acres and the older ranches off El Camino Real. The key is that we give you a written flat price per system before any work starts, and we photograph your ducts so you can see exactly what got removed. Call (737) 727-2314 and a live person answers, day or night.
Why Cardinal Air Duct Cleaning Is Redwood City’s Preferred HVAC Cleaning Company
We’re a local Bay Area crew that knows Redwood City’s housing stock down to the block. The 1950s and 60s ranch homes near Sequoia High School have completely different duct layouts than the newer two-story builds in Redwood Shores, and the dust load in a house off Woodside Road is not the same as one backing up to Stulsaft Park. That local knowledge changes how we clean.
Our HVAC Cleaning team runs professional-grade equipment: Rotobrush rotary brush systems for mechanical agitation and Nikro HEPA-filtered negative-pressure vacuums that pull loosened debris out of the ducts instead of pushing it into your living space. Every technician is background-checked and arrives in uniform with a name you’ll know before the door opens.
We’re part of the Relay Home Co. family, founded in 2005, and we operate under The Relay Visibility Guarantee: a live trackable arrival time, before-and-after photos of your ductwork, and a digital invoice payable from your phone. Omar Haddad leads our team, and he holds every job to the 365-Day Done Right Promise. If the work isn’t right within a full year, we come back and correct it at no charge.
AC Vent Cleaning in Redwood City
AC vent cleaning in Redwood City is a focused service for homes where the supply and return registers are coated with dust, pet hair, or visible debris, but the main trunk lines don’t yet need a full system cleaning. In a typical Redwood City home this runs $150 – $300 when paired with a full HVAC cleaning, or $200 – $400 as a standalone service depending on how many registers you have. We clean the vent covers, the register boots, and the first several feet of duct at each opening.
What Gets Cleaned
We pull each vent cover, wash it, and vacuum inside the register boot with a HEPA-filtered extraction tool. Any rodent debris or old dust caked around the boot gets removed rather than brushed deeper into the duct.
When It’s Enough on Its Own
If you’ve got a newer home with a good MERV 13 filter and no recent construction dust, vent cleaning plus a filter change may be all you actually need. We’ll tell you that straight. We’d rather lose a bigger sale than clean ducts that don’t need it.
Furnace Duct Cleaning in Redwood City
Furnace duct cleaning in Redwood City tackles the full supply and return system upstream of your furnace and air handler, which is where the real debris accumulates in Peninsula homes. We typically quote $450 – $850 for a complete system in a standard Redwood City ranch or two-story, with the final price fixed in writing before we set up equipment. This is not a per-vent upsell.
Negative-Pressure Cleaning
We connect a Nikro HEPA vacuum to the system to pull constant negative pressure, then run a Rotobrush through the main trunk and branch lines. That means the loosened dust and debris goes straight into the vacuum, not into your air handler, blower motor, or back into the house.
Camera Before and After
We photograph the inside of your main trunk line before we start and again when we finish. You’ll see the difference with your own eyes on a phone-friendly report, not just take our word for it.
Trusted Brands We Service in Redwood City
Redwood City homes run equipment from every major manufacturer, and our techs work on all of them: Honeywell filtration systems, Aprilaire media cabinets, and Guardsman air purifiers sit on plenty of Peninsula furnaces and air handlers. When you book, tell us what brand and model you’re running so we can carry compatible filters and coils on the van. We stock common Aprilaire and Honeywell filter sizes locally for Redwood City customers, and we can match the right Abatement Technologies containment setup if your crawlspace or mechanical closet needs dust control during the job.
Common HVAC Cleaning Problems We See in Redwood City Homes
- Marine air dust loading near Highway 101: Homes east of 101, especially around Redwood Shores and the waterfront side of the city, pull in fine salt-laced dust that loads filters faster than the rest of the Peninsula. Ducts coat with a gray, slightly sticky film that a standard filter change doesn’t address.
- Construction dust from remodels: Friendly Acres, Redwood Village, and the older streets off Bay Road have a lot of 1950s – 60s homes getting renovated. Drywall dust and old fiberglass get pulled through open return ducts during the work and settle in the supply lines, which is exactly what causes that burning smell on first heat.
- Oversized systems short-cycling: Some Redwood City homes got furnaces sized for a larger floorplan and they cycle too often. Short cycles mean less air movement per run, so dust drops out of the air stream before it reaches the filter.
- Crawlspace neglect in hill neighborhoods: Homes up toward Emerald Hills and Farm Hill often have duct runs in open crawlspaces that collect dust, spider webs, and occasionally rodent nesting. If the crawlspace hatch has been left ajar, we see a lot of debris drawn in through small gaps in the return side.
Pricing for HVAC Cleaning in Redwood City, CA
You’ll get one flat price per system in writing before a single duct is touched, and it does not change at the door. A full HVAC cleaning for a typical Redwood City home runs $450 – $850, depending on square footage, number of supply runs, and how much debris has collected. Vent-only cleaning runs $150 – $300 when you’re not doing the full system. A two-story Redwood Shores home with two systems may land at the higher end of the range or slightly above. The Relay Standard applies to every booking: a live trackable arrival window, before-and-after photos, and a digital invoice you can pay by link. Call (737) 727-2314 for a free estimate with the actual number, not a range guessing game.
We Also Serve Cities Near Redwood City
Our crews regularly work in Atherton, Menlo Park, San Carlos, and Palo Alto, so if you’re just outside Redwood City, you still get the same flat per-system pricing and The Relay Visibility Guarantee. For more on our broader service area, see HVAC Cleaning in Redwood City and the surrounding Peninsula communities we cover.
Serving Redwood City, CA - Our Local Coverage Area
We’re based in the Redwood City 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 Redwood City
Most Redwood City homes benefit from a full HVAC cleaning every 3 – 5 years, but the honest answer is that it depends on what’s happening in the house. If you recently remodeled, lost a rodent problem, or live east of Highway 101 where marine air loads filters faster, you might need it sooner. If you’ve got a clean MERV 13 filter, no recent work, and no allergy issues, you may just need a filter change and register vacuuming. We’ll inspect first and tell you if a full cleaning is actually worth your money. Call (737) 727-2314 for an honest assessment.
We charge one flat price per system, never per vent or per register. The per-vent model is how a $400 quote becomes a $1,200 invoice once the crew counts every supply and return in a typical Redwood City ranch or two-story. With us, the price is written, fixed, and handed to you before any work starts. If someone’s quoting you per vent, ask them to put their final total in writing first.
We bring a Nikro HEPA-filtered negative-pressure vacuum that stays connected to the system during cleaning, a Rotobrush rotary agitation system for the main trunk and branch lines, and a camera to photograph the inside of your ducts before and after. For crawlspace or tight mechanical closet work, we may use an Abatement Technologies containment unit to keep dust from spreading. We protect your floors with drop cloths and shoe covers, and the equipment runs through an access cut that gets sealed and patched when we’re done.
Because a real HVAC cleaning is a scheduled job that takes planning, not a drive-by service. We send a background-checked technician with the right equipment for your specific system, and we give you a written price before we arrive. That’s why we schedule by appointment and give you a live trackable arrival window instead of an empty same-day promise. If you have an urgent situation like water in the system or a burning smell, call (737) 727-2314 and we’ll get you on the schedule as fast as the calendar allows.
Yes. We photograph the inside of your main trunk line before we clean and again when we’re finished, and the photos are included in your digital report. You’ll see the dust we pulled out and the condition of your ducts with your own eyes. We won’t just hand you an invoice and tell you we did the work; we show you. It’s part of The Relay Standard on every booking.
Call Cardinal Air Duct Cleaning in Redwood City
We know what an honest HVAC cleaning in Redwood City involves because it’s the only kind we do: flat per-system pricing agreed before we start, HEPA-filtered extraction, before-and-after photos of your own ducts, and a straight answer when your ducts don’t actually need cleaning. Omar Haddad and our crew back every job with the 365-Day Done Right Promise. Call (737) 727-2314 for a free estimate and a written price before any work begins.
Written by Omar Haddad, Owner at Cardinal Air Duct Cleaning, serving Redwood City and the Peninsula.