Fast, Reliable HVAC Cleaning Across Berkeley
HVAC cleaning in Berkeley typically runs $280-$650 for a full system cleaning, with most jobs completed in a single visit by our HVAC Cleaning team. We’re familiar with the flatland Victorians near Ashby Avenue and the hillside rebuilds above Claremont - different homes, different duct challenges, and we adjust our approach accordingly. If you’re in Berkeley and noticing musty air, weak airflow, or rising energy bills, call (844) 685-6342. We’ll answer live, give you an honest price before we schedule, and most often we’re there the same day or next.
Why Bellows Air Duct & Vent Co. Is Berkeley’s Preferred HVAC Cleaning Company
We’ve been serving Berkeley homeowners since 1984 - long enough to know the difference between a 1905 brown-shingle in the Elmwood and a post-1991 rebuild in the hills above Grizzly Peak. Ray Castillo built this company on the idea that a tradesman should show his work and stand behind it, and that hasn’t changed in 42 years.
Our technicians are background-checked and uniformed, and they arrive with camera inspection gear from Nikro and Rotobrush. Every job gets photographed before and after, so you see what we see. No claim without proof.
Calls ring through to a live person 24 hours a day. Not an app. Not a callback queue. A real person who knows Berkeley’s ZIPs - 94705, 94707, 94708, 94709 - and can tell you honestly whether we can reach your neighborhood today.
Our 90-Day Done Right Promise applies to every Berkeley job. If something’s not right, we return at no charge. No paperwork, no arguing. It’s stamped on every invoice.
Our HVAC Cleaning Services in Berkeley
Evaporator Coil Cleaning
In Berkeley’s humid flatlands, evaporator coils work overtime. The marine layer keeps indoor humidity elevated for months, and coils in older systems - common in pre-1940 homes - accumulate a sticky biofilm that standard filter changes won’t touch. A typical evaporator coil cleaning in Berkeley runs $180-$320. We access the coil, photograph the condition, apply foaming cleaner, and rinse with controlled water pressure. For homes near the Bayfront with chronic moisture issues, we often pair this with our coil treatment service.
Coil Treatment
Berkeley’s damp crawl spaces create a recurring problem: clean coils re-colonize with mold within a season. Our coil treatment applies a protective antimicrobial barrier - we use professional-grade products from Aprilaire - that inhibits regrowth without leaving residue that circulates through your vents. This is particularly valuable in West Berkeley and the Lorin District, where nighttime marine-layer saturation is highest. Treatment runs $120-$200 when bundled with cleaning, or $160-$260 standalone.
Blower Cleaning
The blower assembly moves every cubic foot of air through your system. In Berkeley’s older homes, blowers often run in cramped utility closets or converted basement spaces where decades of dust and rodent debris accumulate. We remove the blower housing, clean the wheel and motor housing, and reassemble with proper torque specs. A blower cleaning in Berkeley typically costs $150-$280. In homes with flex-duct retrofits from the 1960s-70s, we inspect for loose connections before applying vacuum pressure.
Condenser Cleaning
Outdoor condensers in Berkeley face a unique challenge: coastal salt air combined with pollen from the Berkeley Hills’ mixed evergreen canopy. This creates a corrosive, sticky film on fins and coils. We straighten fins, clean coils with foaming agent, and check refrigerant levels. Most Berkeley condenser cleanings run $140-$250. Homes near the water in ZIP 94710 often need more frequent service.
Air Handler Cleaning
For Berkeley homeowners with air handlers in below-grade spaces - common in Victorian flats with basement utility areas - we clean the entire cabinet, drain pan, and secondary drain line. Standing water in drain pans is a mold vector we see repeatedly in flatland homes. Air handler cleaning typically runs $200-$380 in Berkeley.
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.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Berkeley
We carry professional-grade equipment from Nikro, Honeywell, and Aprilaire - the same brands serious HVAC contractors specify for Berkeley’s demanding conditions. Our vans stock replacement filters, UV bulbs, and antimicrobial treatments sized for the systems common in local housing stock, from vintage forced-air retrofits to modern high-efficiency installs in the hills. This means fewer return trips and same-day completion on most Berkeley jobs.
Common HVAC Cleaning Problems We See in Berkeley Homes
- Marine-layer mold in flex-duct insulation. In Berkeley’s flatland ZIPs (94702, 94703, 94710), chronic marine-layer moisture keeps crawl spaces damp year-round, forcing HVAC cleaning jobs to focus on mold remediation inside flex-duct insulation - a challenge nearly absent in drier inland cities like Walnut Creek.
- Rodent nesting in West Berkeley ductwork. Rats moving inland from the Bay waterfront industrial corridor routinely breach unsealed flex-duct joints and nest inside insulation wrap. We find this pattern far more consistent in West Berkeley and the Lorin District than in the hills or neighboring Albany.
- Aging duct connections separating under vacuum. Pre-1940 homes with retrofitted forced-air systems often have duct connections that were hand-sealed decades ago. Our technicians test pressure tolerance before full cleaning and re-seal by hand where needed.
- Coil biofilm from sustained humidity. Berkeley’s evaporator coils develop a sticky, biological film that simple brushing won’t remove. Our foaming protocol breaks this down without damaging delicate aluminum fins.
Pricing for HVAC Cleaning in Berkeley, CA
A typical full-system HVAC cleaning in Berkeley runs $280-$650, depending on system accessibility, contamination level, and whether we find damage requiring repair. Here’s how that breaks down:
| Service | Typical Range in Berkeley |
|---|---|
| Evaporator Coil Cleaning | $180-$320 |
| Blower Cleaning | $150-$280 |
| Condenser Cleaning | $140-$250 |
| Air Handler Cleaning | $200-$380 |
| Coil Treatment (antimicrobial) | $120-$200 bundled / $160-$260 standalone |
| Full System Cleaning (multiple components) | $280-$650 |
Homes in the flatlands with extensive mold remediation needs or rodent-debris removal may fall at the higher end. Post-1991 hillside homes with modern ductwork typically clean faster and cost less. We disclose the full price before lifting a single tool - the number on the phone is the number on the invoice. Call (844) 685-6342 for a free estimate.
Standing offers: $89 Seasonal Tune-Up; $50 Off Any Repair Over $250; Free Second Opinion on Any Written Estimate; permanent 5% Senior and Veteran discount.
We Also Serve Cities Near Berkeley
Our HVAC Cleaning in Berkeley coverage extends throughout the East Bay. We regularly serve Oakland, Richmond, Alameda, and Chinatown with the same 90-Day Done Right Promise and upfront pricing. If you’re on the border of Berkeley and neighboring cities, call us - we likely already work in your neighborhood.
Serving Berkeley, CA - Our Local Coverage Area
We’re based in the Berkeley 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 Berkeley
Berkeley’s flatlands receive near-nightly marine-layer moisture that keeps crawl spaces and subfloor cavities damp year-round, while inland cities like Walnut Creek or Livermore dry out between wet seasons. This persistent ambient humidity means flex-duct insulation in below-grade runs retains moisture and harbors mold even without visible water intrusion. Our crews treat this as a moisture-remediation job, not just debris removal. Call (844) 685-6342 if you smell mustiness from your vents - estimates are free.
Post-1991 hillside homes typically have modern ductwork installed after the Tunnel Fire rebuild, so mold is less common than in flatland retrofits. However, hillside homes still face pollen accumulation from the mixed evergreen canopy and occasional rodent intrusion from open space corridors. We recommend inspection every 3-5 years. Call (844) 685-6342 to schedule.
Yes. Rodent nesting material and droppings in ductwork circulate particulates and allergens throughout your home every time the system runs. In South Berkeley and the Lorin District, we find this frequently due to rats moving inland from the Bayfront industrial corridor. We remove debris, sanitize affected runs, and seal accessible entry points. Call (844) 685-6342 for camera inspection - we’ll show you exactly what’s in there.
Yes. We’ve cleaned ducts in Berkeley’s tightest crawl spaces, including Victorians on Adeline and throughout the Lorin District. Shallow spaces require specialized flexible equipment and manual re-sealing of aging connections before vacuum application. We assess accessibility during our free estimate and adjust our approach accordingly. Call (844) 685-6342 to schedule a look.
Not always. A “standard” cleaning from some providers covers only visible vents and main trunk lines. Our full-system cleaning includes evaporator coil access and cleaning, but we price it as a separate line item so you know exactly what you’re paying for. Coil cleaning in Berkeley typically adds $180-$320 to a duct cleaning package. Call (844) 685-6342 for a detailed quote.
Ready to get your Berkeley home’s HVAC system cleaned right? Call Bellows Air Duct & Vent Co. at (844) 685-6342 for a free estimate. We’ll answer live, give you an honest upfront price, and most often complete the job in a single visit. Our 90-Day Done Right Promise means we stand behind it - no paperwork, no arguing.
Written by Ray Castillo, Owner at Bellows Air Duct & Vent Co., serving Berkeley since 1984.