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.
Before
After
Before
After
Before
AfterFast, Reliable HVAC Cleaning Across Redwood City
HVAC cleaning in Redwood City typically costs between $450 and $1,100 depending on system size and the number of duct runs involved, and most jobs are completed in a single visit. We’re CleanRun Air Duct Cleaning, and our HVAC Cleaning team has worked inside enough Redwood City attics, crawl spaces, and mechanical closets to know exactly what your system is dealing with. Whether you’re in a 1960s ranch in Friendly Acres or a 1980s townhome in Redwood Shores, we quote a written price before a single panel comes off. Call (806) 606-6902 and we’ll walk you through what we do, what it costs, and what you’ll see when we’re done.
Why CleanRun Air Duct Cleaning Is Redwood City’s Preferred HVAC Cleaning Company
We photograph the inside of every duct run before and after. That’s not a marketing line. It’s the Documented Photo Record we’ve delivered on every job since 2013, and it means you see what we see: the debris accumulation at the first elbow, the microbial staining inside a flex run, the clean metal after extraction. Redwood City homeowners who research before calling tend to recognize what that documentation is worth.
Our crews are background-checked, uniformed, and identified by name before they arrive. They work under the H.A.V.E.N. Standard, and Haven Standard Clause 1 is the promise that gets Redwood City customers to trust us in the first place: a written price before any work starts, every time. Not an estimate range. Not a call-back with a number. A written price.
Ductwork here spans everything from original 1950s sheet metal in Mount Carmel to stacked shared chases in Redwood Shores condos. Our technicians have pulled both apart, camera-inspected both, and documented both. We coordinate dispatch from our San Francisco Bay Area office, and our crews serve HVAC Cleaning in Redwood City on a regular local schedule.
Our HVAC Cleaning Services in Redwood City
Evaporator Coil Cleaning
The evaporator coil sits inside your air handler and is where refrigerant absorbs heat from the air moving through your system. In Redwood City’s warm, sunny microclimate, residents run AC more weeks out of the year than homeowners in San Francisco or Daly City. That means coils here accumulate dust and biofilm faster. A coil caked with debris can’t transfer heat efficiently, which forces your compressor to run longer for the same cooling output. Our cleaning removes the buildup and restores airflow across the coil surface.
Air Handler Cleaning
Air handlers in Redwood Shores townhomes frequently show moisture-related issues that single-family systems in Menlo Park don’t. We find pooled condensation in air handler cabinets, dust caked onto blower wheels, and microbial staining on interior surfaces. This matters more in Redwood City than in drier inland areas because Redwood Shores sits on reclaimed Bay tidal flats. Crawl-space humidity wicks up through poorly sealed duct boots and settles right where the air handler lives. We clean the cabinet, the blower assembly, the coil, and the condensate pan, then photograph all of it.
Blower Cleaning
A blower wheel loaded with dust and debris moves less air and draws more current. In 1950s and 1960s ranch homes around Centennial and Friendly Acres, the blower often pulls through decades of accumulated particulate from original sheet-metal ducts. We remove the blower assembly, clean the wheel and housing, and document the before and after. A clean blower typically runs quieter and strains less.
Condenser Cleaning
The condenser is the outdoor unit. In Redwood City’s warm summer months, it’s exposed to pollen, cottonwood fluff, and dust from surrounding landscaping. A fouled condenser coil raises head pressure and shortens compressor life. We clean the coil fins, clear debris from the housing, and check the surrounding clearance so the unit can reject heat properly.
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.
BeforeAfterTrusted Brands We Service in Redwood City
We service and clean residential HVAC equipment regardless of brand, and we typically work around Carrier, Trane, Lennox, Goodman, and Rheem systems in Redwood City homes. Our equipment roster includes Rotobrush agitation tools, Nikro HEPA-filtered negative air machines, and Abatement Technologies filtration units. We don’t ask you to take our word on equipment quality. You can look those names up independently before we ever step inside your home.
Common HVAC Cleaning Problems We See in Redwood City Homes
- Construction dust in new builds. New homes in Redwood City, particularly in recent infill developments and rebuilds across Centennial, often have drywall dust and construction debris left in the ductwork at handover. Builders run the HVAC during construction, and the system pulls sheetrock particulate into every duct run. We’ve camera-inspected brand-new systems that looked like they’d been running for ten years.
- Moisture-stained flex duct in Redwood Shores. Redwood Shores is built on filled Bay marsh. The water table sits only a few feet below grade. When duct boots aren’t sealed properly at the slab, crawl-space humidity migrates directly into the duct system. We routinely pull flex duct in Redwood Shores with interior moisture staining and microbial growth in homes with no visible water damage anywhere.
- Original sheet-metal ducts in 1950s ranch homes. Friendly Acres, Mount Carmel, and parts of Centennial have high concentrations of mid-century ranch homes with original galvanized duct systems routed through unconditioned attics. Those ducts have been collecting dust, pet hair, and debris since the Eisenhower administration. They’re rarely sealed and never cleaned, and they load blower motors with decades of particulate.
- Cross-unit contamination in stacked condo duct chases. Redwood Shores condos and townhomes often share vertical duct chases between units. When one unit has a moisture or debris problem, positive pressure differences can push contamination into neighboring systems. Cleaning these systems properly requires negative-pressure containment so you’re not redistributing debris through a shared chase into someone else’s unit.
Pricing for HVAC Cleaning in Redwood City, CA
Whole-system HVAC cleaning in Redwood City typically runs between $450 and $1,100. A smaller single-family system with a single air handler and straightforward duct layout starts around $450 to $650. Multi-story Redwood Shores townhomes with stacked chases and multiple returns typically land between $700 and $1,000. Larger homes with two air handlers or especially long duct runs can exceed $1,100. Evaporator coil cleaning alone usually runs $250 to $450, depending on accessibility and buildup. Blower cleaning runs $150 to $300. These are written prices agreed to before work starts. We don’t do per-vent pricing. One flat price per system, documented in writing. That’s Haven Standard Clause 1. Call (806) 606-6902 and we’ll give you a specific number based on your system.
Key Takeaways
- Whole-system HVAC cleaning in Redwood City runs $450 to $1,100, with a written price before any work starts.
- Redwood Shores ductwork faces moisture and microbial issues that neighboring San Carlos and Menlo Park don’t see to the same degree.
- New construction in Redwood City often has construction dust and drywall debris left in the ductwork at handover.
- Every CleanRun job includes a Documented Photo Record of every duct run, before and after.
- The 365-Day Done Right Promise means the work is accountable after the truck leaves.
Why New Redwood City Homes Often Need HVAC Cleaning at Move-In
If you bought a newly built home in Redwood City in the last few years, you might assume your ducts are clean. That assumption fails more often than not. During construction, the HVAC system gets run before the drywall dust settles. The system pulls sheetrock particulate, sawdust, and general construction debris into the supply and return duct runs. Builders don’t clean ductwork at handover. They’re not required to. What you get is a brand-new system with a pre-loaded filter, a dusted evaporator coil, and debris stored in the ducts. We’ve camera-inspected new Redwood City builds and found drywall dust packed into the first elbow of the supply trunk. The builder should have cleaned the system, and rarely does. Our cleaning removes what the builder left behind.
What Makes Redwood Shores Ductwork Different
Redwood Shores is a planned community built on reclaimed tidal flats at near-sea-level elevation. Bay water sits on three sides, and the water table underneath sits only a few feet below grade. That geography creates a condition you won’t find in San Carlos or Menlo Park: crawl-space humidity wicks directly into poorly sealed duct boots in slab-adjacent chases. The result is flex duct with interior moisture staining and microbial growth in homes that show no visible water damage. Owners notice a musty odor when the system runs. They check for leaks. They check the roof. They find nothing. The problem is in the ducts. In a 1980s Redwood Shores townhome off Shoreline Drive, our techs camera-inspected the supply and return ducts and found dark microbial staining inside the flex runs and pooled condensation in the air handler cabinet. Using a Rotobrush agitation tool and a HEPA-filtered negative pressure vacuum, we source-removed the contamination, cleaned the blower motor and evaporator coil, and treated the surfaces to prevent regrowth. We followed NADCA standards for cross-contamination control in shared duct chases. The homeowner received the full photo record.
We Also Serve Cities Near Redwood City
While this page focuses on Redwood City, our technicians also serve Menlo Park, San Carlos, Palo Alto, and Belmont. Each of these Peninsula cities has its own housing stock and climate profile, and we treat each system accordingly. If you’re in a neighboring city and reading this, the same written pricing and documented photo record apply.
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 - HVAC Cleaning in Redwood City
A new Redwood City home often needs cleaning because builders run the HVAC system during construction and leave drywall dust, sawdust, and construction debris throughout the ductwork. There’s no requirement for builders to clean the ducts before handover. The system looks clean from the registers, but a camera inspection typically reveals debris packed into supply runs and dusted across the evaporator coil. Call (806) 606-6902 to schedule an inspection and get a written price for cleaning.
Redwood Shores sits on filled Bay marsh with a water table only a few feet below grade. Crawl-space humidity wicks into duct systems through poorly sealed duct boots, creating moisture conditions inside flex duct that support microbial growth. This happens even in homes with no visible water damage or leaks. San Carlos and Menlo Park sit on higher grade and don’t experience the same humidity-driven contamination. If you’re in Redwood Shores and notice a musty smell when the system runs, have the ducts camera-inspected. Call (806) 606-6902 and we’ll document what’s actually inside.
Yes. Redwood City’s climate is measurably warmer and sunnier than San Francisco or Daly City, so residents here run AC more often. A fouled evaporator coil restricts heat transfer, while a loaded blower wheel moves less air. Cleaning both improves airflow and cooling efficiency, and reduces strain on the compressor. The improvement is noticeable in system cycle times and indoor air delivery. We’ll show you the before and after photos of both components. Call (806) 606-6902 for a written price.
Shared vertical duct chases connect multiple units in Redwood Shores condo and townhome buildings. When one unit has a moisture or debris issue, pressure differences can push contaminated air through the chase into neighboring systems. Proper cleaning in these buildings requires negative-pressure containment so debris isn’t redistributed through the shared chase. We follow NADCA standards for cross-contamination control and document the entire process. Call (806) 606-6902 if you suspect a shared-chase issue in your building.
Yes. Friendly Acres, Mount Carmel, and Centennial have dense concentrations of 1950s and 1960s ranch homes with original sheet-metal duct systems. Many of those ducts have never been cleaned. Decades of dust, pet hair, and debris accumulate inside, recirculating through the system and loading the blower motor. We’ve pulled blower wheels from these homes caked in material that’s been there longer than most current homeowners have been alive. A cleaning restores airflow and reduces particulate recirculation. Call (806) 606-6902 for a written price based on your specific system.
Get a Written Price for HVAC Cleaning in Redwood City
You get a written price before any work starts. You get photographs of every duct run before and after. You get a documented record that shows exactly what was inside your system and exactly what we did about it. That’s how we’ve operated since 2013, and it’s why Redwood City homeowners who research before calling end up calling us. If you have a competitor’s written estimate, bring it. We’ll put our number next to it in writing, free of charge. Call (806) 606-6902 to schedule your HVAC cleaning in Redwood City.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning, serving Redwood City and the surrounding Peninsula communities since 2013.