Air Duct Cleaning in Sunnyvale - Flat Price Per System, No Per-Vent Upsells

Fast, Reliable Air Duct Cleaning Across Sunnyvale

Air duct cleaning in Sunnyvale runs $450 to $850 for a typical single-family home, and the work usually takes a half day with two technicians on-site. That’s the honest range for a real clean with negative pressure and HEPA filtration, not a per-vent teaser price that doubles once the van pulls up. Heritage Duct Cleaning serves every Sunnyvale ZIP code from 94085 up through 94089, and we’ve spent enough time in the crawlspaces and low-clearance attics here to know exactly what these 1950s and 60s systems hold. If you want a specialist who treats duct cleaning as a diagnostic process rather than a vacuum demo, call (855) 550-3778 for a free estimate.

Why Heritage Duct Cleaning Is Sunnyvale’s Preferred Air Duct Cleaning Company

We’re the crew Sunnyvale homeowners call when they want the job done with commercial-grade equipment and a camera roll to prove it. Noel Carvalho built Heritage Duct Cleaning around a simple observation: most duct cleaners show up with a portable shop-vac and a fogging machine, while restoration contractors use Rotobrush and Nikro systems for a reason. Those are the same tools on our trucks. When we clean ducts in a 94086 Eichler or a 94087 ranch, we run negative pressure the entire time, so what we agitate loose goes into a HEPA-filtered collection system, not back into your bedroom air.

The local reputation we’ve earned in Sunnyvale comes from showing up with a process, not a pitch. We don’t fog. We don’t sanitise. We remove. Homeowners here appreciate that, especially the ones who’ve already paid a coupon company once and watched the dust settle back onto their registers two weeks later.

HVAC Duct Cleaning in Sunnyvale

HVAC Duct Cleaning in Sunnyvale means something specific here: pulling decades of fog-belt moisture residue, pest debris, and construction dust out of duct systems that often date back to the original tract build. In the 94085 and 94086 neighborhoods especially, we’re working on forced-air systems from the 1950s and 60s, some of them octopus-style layouts with low-profile duct runs that leak and collect far more than a newer system would. A full HVAC duct clean for a Sunnyvale single-family home runs $450 to $650 when the system is accessible and under 2,500 square feet. Add a crawlspace plenum with rodent activity or a low-clearance attic and you’re looking at $650 to $850 because access time goes up.

Supply and Return Duct Cleaning

Supply ducts push conditioned air into rooms; return ducts pull it back to the furnace. In Sunnyvale’s older homes, return ducts are frequently the bigger problem because they draw air from damp crawlspaces and attics. That’s how fiberglass insulation particles, rodent droppings, and mold spores get pulled into the airflow path. We clean both legs of the system separately and document each with before-and-after camera footage.

Full System Cleaning with Camera Verification

A full system clean covers the plenum, the supply and return runs, all registers, and the air handler cabinet. We run a video inspection before we start and again after we finish, so there’s no ambiguity about what was cleaned. If we find a torn flex run or a collapsed section, we tell you. If you want, we repair it on the same visit, which most duct cleaning companies can’t do.

Vent Cleaning in Sunnyvale

Vent Cleaning in Sunnyvale typically runs $180 to $350 for dryer vent service, and $150 to $300 for supply and return register cleaning as part of a larger duct job. The mild climate here means HVAC systems sit idle for long stretches, and that idle time is when dust settles deep into vent runs and dryer lint compacts into duct walls. We’re not just brushing the visible register face. We run rotary agitation tools through the full vent pathway and capture debris under negative pressure, the same approach we use on the main duct system.

Dryer Vent Cleaning

Lint builds up fast in Sunnyvale laundry rooms, especially in the 1970s and 80s townhome complexes near the 101 and 237 corridors where dryer runs are long and often shared. We remove the lint, check the termination flap outside, and pressure-test the run to confirm it’s moving air properly. This is the service that pays for itself in dryer efficiency and fire risk reduction.

Register and Grille Cleaning

We pull every register, degrease the grilles, and vacuum the boot cavity. In older Sunnyvale homes, we frequently find paint overspray from decades of repainting, plus dust caked around the register vanes. It’s a small detail, but it matters when you’re solving indoor air quality, not just moving dust around.

Trusted Brands We Service in Sunnyvale

Our technicians work on Honeywell and Aprilaire air quality systems daily, which matters in Sunnyvale because so many mid-century and 1990s homes here use these platforms for filtration and humidity control. We understand how the whole air pathway connects: the Honeywell media cabinet, the Aprilaire humidifier, and the ducts that carry the conditioned air. We stock common replacement parts locally, so if your filter housing or duct run needs a fix during a clean, we can usually handle it the same day. Our Air Duct Cleaning team doesn’t just treat the ducts in isolation. We look at the entire system.

Common Air Duct Cleaning Problems We See in Sunnyvale Homes

• Moldy flex duct in damp crawlspaces: The winter fog belt off the Bay keeps the ground damp in the older 94085 and 94086 blocks, and that moisture wicks into crawlspace flex runs. We regularly pull out flex duct that’s black on the inside and needs replacement, not just cleaning.
• Rodent nests packed around the plenum: The old orchard land and creek corridors near Sunnyvale support healthy rodent populations. In the original tract homes, gaps around the plenum make an easy entry point. We find nests, droppings, and chewed insulation more often than we find clean systems.
• Low-clearance attic duct runs that never get properly cleaned: Eichler homes and early ranches with in-slab or tight attic ductwork are physically hard to access, so previous crews sometimes skip the runs entirely. We use low-profile agitation tools and camera verification to confirm we actually reached the far end.
• Dust redistribution from poor cleaning methods: Without negative pressure, anything a brush loosens just drifts through the supply ducts and out the registers. We see this after cheap cleans all over Sunnyvale. The homeowner paid for a fogging and got a dust storm.

Pricing for Air Duct Cleaning in Sunnyvale, CA

We Also Serve Cities Near Sunnyvale

Heritage Duct Cleaning works throughout the South Bay and Peninsula. If you’re in Cupertino, Mountain View, Santa Clara, or West San Jose, we’re a short drive away with the same equipment and the same process. Our schedule fills fastest in the weeks before furnace season, so if you’re in Sunnyvale or any neighboring city, call early.

FAQs About Air Duct Cleaning in Sunnyvale