Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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.
Air Duct Cleaning Company in Sunnyvale, CA
Air duct repair in Sunnyvale usually means one of two things: sealing leaks in 1950s and 60s ductwork that has never been touched, or replacing sections crushed by decades of crawlspace work under mid-century ranch homes. Heritage Duct Cleaning has served Sunnyvale since 2015, and we handle the full job from diagnosis to repair in a single visit, using Nikro and Rotobrush equipment built for professional restoration work, not hardware-store rentals. When you need a specialist who fixes ducts rather than just cleaning around the damage, call us at (855) 550-3778.
Why Sunnyvale Homes Are Different
Sunnyvale’s housing stock splits roughly along ZIP code lines, and that split changes what we find inside the ducts. The 94085 and 94086 neighborhoods, particularly around Lakewood Village and the Cherry Chase area, are full of original Eichler and early tract homes from the late 1950s and early 60s. Those houses were framed around forced-air furnaces with low-profile ductwork that runs through slab foundations or low-clearance attics. Six decades later, that ductwork leaks at the seams and collects dust in places nobody has opened since the Nixon administration.
Meanwhile, 94087 and 94089 tell a different story. Tech-worker turnover means 1960s and 70s ranch homes change hands every few years, and new owners call us for move-in duct cleaning before swapping the original furnace. Sunnyvale’s mild, dry summers mean HVAC systems idle for long stretches, letting dust settle and pests move in. When the winter fog rolls off the Bay, crawlspaces in the older neighborhoods stay damp, and we regularly find moldy flex duct and rodent nests packed around the plenum. These are conditions specific to Sunnyvale, and they shape how we approach every job here.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
Our Main Sunnyvale Services
Most Sunnyvale homeowners call us for one of two services, and they often book both in the same visit.
Air Duct Cleaning in Sunnyvale
Sunnyvale’s dry summers and fog-belt winters create a specific cycle: ducts sit idle for months, then pull cool coastal air through leaky return paths, dragging in attic fiberglass, orchard dust, and whatever critters have been living under the house. Our cleaning process uses Rotobrush and Nikro systems, the same commercial-grade gear restoration contractors use, not a portable shop-vac. We agitate the full duct length, pull negative air through a HEPA-filtered collector, and leave you with before-and-after photos of your own ducts. See the full breakdown on our Air Duct Cleaning in Sunnyvale page.
Dryer Vent Cleaning in Sunnyvale
Older Sunnyvale homes often route dryer vents into crawlspaces or through low-clearance attics, and lint builds faster in those long, low runs than in newer construction. A clogged dryer vent in a 1950s ranch is a genuine fire risk, and it also forces your dryer to work harder and run longer. We feed professional rotating brushes from the exterior vent and the dryer side, measure airflow before and after, and remove lint accumulations that hardware-store tools cannot reach. Full details are on our Dryer Vent Cleaning in Sunnyvale page.
Air Duct Repair in Sunnyvale
Sunnyvale’s mid-century homes share a common weakness: ductwork that was installed when the houses were built and has never been properly sealed or replaced. The 1950s octopus-style forced-air systems in 94086 and 94085 often share a crawlspace with old gravity furnace ducts, and the seasonal fog keeps those crawlspaces damp enough to rot flex duct and attract rodents that chew through insulation. The fix is rarely a cleaning alone. You need a company that can open the system, find the failed section, and repair it properly. That is the full scope of what Air Duct Repair means at Heritage Duct Cleaning in Sunnyvale: diagnose, seal, replace, and verify airflow, often in one visit.
HVAC Duct Installation
Signs you need it
A new furnace or heat pump paired with original 1960s ductwork means your efficiency gains are leaking into the crawlspace before conditioned air reaches a single register.
What it costs in Sunnyvale
Full HVAC duct installation for a typical Sunnyvale ranch runs $4,500 to $9,200 depending on access and the number of runs involved.
How we do it
We map the existing layout, remove failed sections, fabricate and hang new runs sized to your furnace’s CFM, seal every joint with mastic, and test static pressure at the plenum.
Air Duct Replacement
Signs you need it
Crushed, water-damaged, or rodent-chewed flex duct in the crawlspace, or metal duct with rusted seams and visible daylight showing through gaps at the joints.
What it costs in Sunnyvale
Replacing a complete duct system in an older Sunnyvale home typically falls between $3,800 and $8,500, with single-run replacements starting around $450.
How we do it
We remove the failed duct, inspect the remaining system for hidden damage, install new R-6 or R-8 flex or metal duct to match the original sizing, seal and support it, then run an airflow test.
Ductwork Repair
Signs you need it
Rooms that never reach the thermostat temperature, whistling at register faces, or a sudden spike in dust after the seasonal fog keeps your crawlspace damp for weeks.
What it costs in Sunnyvale
Targeted ductwork repair, like sealing leaks or patching damaged sections, ranges from $850 to $2,400 depending on how many joints and runs are involved.
How we do it
We pressure-test the system to locate every leak, then seal or patch with mastic and foil tape backed by mechanical fasteners, never duct tape, and re-test before we pack up.
What Air Duct Repair Costs in Sunnyvale
| Item | Typical range in Sunnyvale |
|---|---|
| Targeted ductwork repair (sealing, patching) | $850 – $2,400 |
| Complete air duct replacement | $3,800 – $8,500 |
| Full HVAC duct installation | $4,500 – $9,200 |
What pushes a Sunnyvale repair toward the higher end is almost always access. Crawlspace duct runs in older 94085 and 94086 homes take longer to reach, and tear-out work around slab penetrations costs more than attic replacement in a newer condo. Our price is one flat rate per system, agreed before work starts, and it does not change once the van pulls up.
How long does duct replacement take in a Sunnyvale ranch?
A full duct replacement in a typical Sunnyvale ranch takes one to two working days. Crawlspace access in older 94085 and 94086 homes can add time when we need to remove plenum obstructions or repair hanging supports before running new duct. Call (855) 550-3778 for a work-day estimate on your home.
Do Sunnyvale homes need permits for duct replacement?
Most duct replacement work in Sunnyvale falls under minor mechanical repair and does not require a city permit. If the scope expands to furnace relocation or new penetrations through fire-rated walls, permitting rules can change, and we will tell you before work begins.
Brands We Service in Sunnyvale
We work on homes with Honeywell and Aprilaire filtration systems every week, which means our technicians understand the full air pathway from filter cabinet to register, not just the ductwork in isolation. Parts for these platforms are stocked locally, so most repairs proceed without a second visit. See our brands for the full picture of what we service.
See the difference
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After
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AfterPricing for Air Duct Cleaning Company in Sunnyvale, CA
| Service | Typical range in Sunnyvale |
|---|---|
| Whole-home air duct cleaning (up to 10 vents) | $349 – $549 |
| Whole-home air duct cleaning (larger systems) | $550 – $900 |
| Dryer vent cleaning | $145 – $180 |
| Targeted ductwork repair (sealing, patching) | $850 – $2,400 |
| Complete air duct replacement | $3,800 – $8,500 |
| Full HVAC duct installation | $4,500 – $9,200 |
| Filter replacement add-on | $35 – $75 |
| Basic maintenance inspection | $95 – $135 |
Sunnyvale prices run toward the higher end when we are working in crawlspace homes with rodent damage, collapsed flex duct, or original hard-pipe runs that need replacement rather than cleaning. We quote one flat price per system before work starts, and every Sunnevale customer gets before-and-after photos of their own ducts as proof of the work.
Neighborhoods We Serve in Sunnyvale
We cover all of Sunnyvale, from the Eichler clusters near Fairwood and the mid-century streets of Lakewood Village to the ranch homes of Serra and the newer condos downtown. Expect us to quote same-week for most cleaning jobs, with repair work scheduled by scope.
- Lakewood Village
- Cherry Chase
- Fairwood
- Serra
- Downtown Sunnyvale
Service Area – Cities Near Sunnyvale
Heritage Duct Cleaning serves Sunnyvale and the surrounding Santa Clara Valley communities. We regularly work in Cupertino, CA, where ranch homes share the same mid-century duct issues. We also cover Mountain View, CA, Santa Clara, CA, and West San Jose, CA, bringing the same commercial-grade equipment to every job.
Serving Sunnyvale, CA – Our Local Coverage Area
We’re based in the Sunnyvale 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 Air Duct Cleaning Company in Sunnyvale
We quote same-week for most cleaning and inspection calls in Sunnyvale. Repair jobs depend on parts and scope, but crawlspace access in 94085 and 94086 rarely delays a scheduled appointment. Call (855) 550-3778 and we will give you a specific arrival window.
Some townhome and condo complexes along the 101 and 237 corridors have noise windows that limit when we can run equipment. We coordinate with property managers on those jobs, and single-family homes in Sunnyvale are not restricted by city noise rules during normal working hours.
Yes. Home inspectors in Sunnyvale flag duct issues on mid-century homes constantly, and we walk the same system with a camera and pressure gauge to confirm what needs repair versus what is just age. You get a straight answer and a fixed price. Call (855) 550-3778 to schedule a free estimate.
What happens when you call
- 1A real person answersNo phone trees. Talk to a local air duct cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you. The visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Sunnyvale Customers Say
"Quoted per system rather than the bait and switch per vent pricing everybody else in town uses. The number I was told on the phone was the number on the invoice."
- Sofia Rodriguez"Fair price and thorough work. They ran about an hour and a half past the estimated finish time, so don't schedule anything tight after."
- Andre Prince"Told me straight that our ducts were in decent shape and didn't need doing every year like the mailer companies claim."
- Stephanie Sutton