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
Sunnyvale’s housing stock presents a specific problem: thousands of Eichler-style and early ranch tract homes from the 1950s and 60s were built with undersized galvanized ducts and no meaningful filtration. Add decades of year-round HVAC use from tech households who keep systems running through mild winters and dry summers, and the result is ductwork that accumulates dust faster than it should and often fails outright. Duct Cleaning Union City handles Air Duct Repair as our primary focus in Sunnyvale, because a mid-century home with original sheet-metal runs typically needs repair work as much as cleaning. Call (877) 824-3121 for an honest assessment.
Why Sunnyvale Homes Are Different
Sunnyvale sits in the mild South Bay, which sounds forgiving until you understand what that means for ductwork. Low humidity and moderate temperatures mean systems rarely get a hard seasonal shutdown. The blower runs year-round, pulling in pollen from the city’s remaining orchard and street trees every spring and fine particulate during wildfire-smoke events in recent summers. Without a true off-season, dust settles into ducts continuously, and the accumulation compounds.
The housing stock makes it worse. The single-story ranch and Eichler-influenced tract homes concentrated in 94085 and 94086 were built with 4 to 6-inch galvanized trunks, often uninsulated and undersized by modern standards. In the Eichler-era neighborhoods off Mathilda and Fair Oaks, low-slope roofs and shallow attic cavities force ducts through barely-accessible chases. Technicians routinely find the original fiberglass-lined plenums disintegrating into the airstream. Crushed flex runs in tight attics and disconnected joints under the slab-on-grade homes are common findings. In 94087’s two-story subdivisions from the 1960s through the 80s, the issue shifts to long, leaky return runs that pull unfiltered air from crawlspaces. Newer townhome and condo construction downtown and near the 101/237 corridors tends to have shorter runs, but construction debris and drywall dust frequently linger in the system long after move-in.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
Our Main Sunnyvale Services
Two services account for the majority of calls we field from Sunnyvale homeowners: full-service air duct cleaning and standalone dryer vent cleaning. Both are handled with the same professional-grade Rotobrush and Nikro systems we run throughout the South Bay.
Air Duct Cleaning in Sunnyvale
Sunnyvale homes accumulate a distinct mix of dust: spring pollen from mature street trees, fine silt carried in through open windows during the dry season, and drywall dust from the constant remodeling cycle that comes with Silicon Valley turnover. Our cleaning process for Sunnyvale jobs starts with a camera inspection of the trunk lines, because on older slab homes we frequently find disconnections that make a basic cleaning pointless until repaired. We brush and vacuum the full duct system using truck-mounted Nikro negative-air equipment, then document the results with before-and-after photos of the actual ducts. If you want the complete picture on this service, our Air Duct Cleaning in Sunnyvale page covers it in depth.
Dryer Vent Cleaning in Sunnyvale
Dryer vents in Sunnyvale ranch homes often run long horizontal distances to reach an exterior wall, and every bend and added foot traps lint. Older tract homes in 94085 and 94086 commonly have 15 to 25-foot vent runs where the dryer has to work harder on every cycle. We treat dryer vent cleaning as a standalone service with its own pricing and its own checklist, because a clogged vent is a fire hazard and an energy waste, not an air-quality afterthought. See the full scope on our Dryer Vent Cleaning in Sunnyvale page.
Air Duct Repair in Sunnyvale
Air Duct Repair in Sunnyvale is the service that separates a real fix from a blow-out. In homes built between the 1950s and 1970s, the original galvanized sheet metal runs are now 50 to 70 years old. Joints have separated, flex retrofits done by prior owners have collapsed in tight attic chases, and fiberglass-lined plenums off Mathilda and Fair Oaks are crumbling into the airflow. Cleaning alone cannot correct those conditions. When we find a disconnected return pulling crawlspace air or a crushed flex run starving a bedroom, the repair is the point. That’s why Duct Cleaning Union City runs Air Duct Repair as a primary service line rather than a footnote.
HVAC Duct Installation
Signs you need it
A room that never reaches the same temperature as the rest of the house, especially if it’s an addition or a converted garage, usually points to ductwork that was never properly installed for that space.
What it costs in Sunnyvale
Whole-system duct installation in Sunnyvale typically runs $3,000 to $8,000 depending on home size and attic access; a single-room run is proportionally less.
How we do it
We size new duct runs to the room’s actual heat load rather than copying whatever was there, replace undersized trunks where necessary, and seal every joint with mastic before wrapping exposed runs in the attic.
Air Duct Replacement
Signs you need it
Visible rust, collapsed sections, or fiberglass lining that flakes into the air stream when you touch it are all conditions where a cleaning will not save the duct.
What it costs in Sunnyvale
Replacing all the accessible ductwork in a typical Sunnyvale ranch home lands between $2,500 and $5,000, while a partial replacement of the worst runs is usually $800 to $2,000.
How we do it
We remove the failed sections, run new insulated flex or rigid duct with proper support at the code spacing, and reconnect each branch to the plenum with sealed collars rather than tape.
What Air Duct Repair Costs in Sunnyvale
| Item | Typical range in Sunnyvale |
|---|---|
| Minor ductwork repair (small hole at a joint, one loose section) | $150 – $450 |
| Moderate ductwork repair (reconnect a branch, patch large leaks in multiple locations) | $450 – $1,200 |
| Major repair or partial replacement (collapsed run, severely damaged trunk section) | $800 – $2,000 |
Does air duct repair save money on energy bills in Sunnyvale?
Yes. A leaking return in a crawlspace pulls unfiltered air into the system, which makes the blower work harder and the evaporator coil dirtier. Sealing that leak often produces a measurable drop in runtime during the shoulder months when Sunnyvale weather would otherwise let the system rest.
Can you repair ducts in an Eichler home with no attic access?
We can. Eichler-style homes near Mathilda and Fair Oaks route ducts through chases and between the ceiling and the flat roof, which makes access genuinely difficult. We use camera inspection first to map the run, then open the smallest necessary access point rather than cutting blind. Call (877) 824-3121 for a look at your particular layout.
Brands We Service in Sunnyvale
We work on and around all major HVAC brands found in Sunnyvale homes, including Carrier, Lennox, Trane, Rheem, and Goodman, and we install filtration and air-quality upgrades from Nikro, Aprilaire, and Honeywell. Common replacement parts like collars, registers, flex sections, and filter housings are stocked in our vans for same-visit repairs. See our brands page for the full list of equipment we support.
See the difference
Before
After
Before
After
Before
AfterPricing for Air Duct Cleaning Company in Sunnyvale, CA
| Service | Typical range in Sunnyvale |
|---|---|
| Air Duct Cleaning (whole system, standard ranch) | $450 – $900 |
| Air Duct Cleaning (larger two-story or multiple zones) | $800 – $1,500 |
| Dryer Vent Cleaning (standalone) | $120 – $300 |
| Minor ductwork repair (small hole, loose section) | $150 – $450 |
| Moderate ductwork repair (branch reconnect, multiple leaks) | $450 – $1,200 |
| Major repair or partial replacement | $800 – $2,000 |
| Air Duct Replacement (partial, worst runs only) | $800 – $2,000 |
| Air Duct Replacement (all accessible ductwork in a ranch home) | $2,500 – $5,000 |
| HVAC Duct Installation (whole system) | $3,000 – $8,000 |
What pushes a Sunnyvale job to the top of its range is access: tight Eichler chases, uninsulated galvanized runs that have to be worked around carefully, and long trunk lines through narrow crawlspaces all add labor time. We agree on one flat price per system before work starts, the price doesn’t change once we’re on site, and every job includes before-and-after photos of the actual ducts so you can verify the work.
Neighborhoods We Serve in Sunnyvale
Duct Cleaning Union City covers the full Sunnyvale footprint from the 94089 industrial corridor down through 94087, and most calls come from the ranch-heavy neighborhoods where the original ductwork is finally reaching the end of its service life. We typically schedule Sunnyvale jobs on a one-to-three-day window from call to completion.
- Eichler neighborhoods off Mathilda and Fair Oaks
- Lakewood Village
- Cherry Chase
- Cumberland South
- Ponderosa Park
Service Area – Cities Near Sunnyvale
Duct Cleaning Union City serves Sunnyvale and the surrounding South Bay communities from our Union City base. If you’re outside Sunnyvale, we also handle air duct and dryer vent work in Santa Clara, CA, Alviso, CA, Stanford, CA, and East Palo Alto, CA with the same equipment and the same flat-price policy.
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
Most Sunnyvale jobs are scheduled within one to three days of the initial call. Homes in 94085, 94086, and 94087 are all within our regular service route, and we group nearby calls to keep travel time from inflating the price.
For most single-family homes in Sunnyvale, duct cleaning and repair does not require a permit as long as structural changes are not involved. High-density townhome and condo communities near downtown may have HOA rules about working in shared attic spaces. We coordinate access with the association when needed. Call (877) 824-3121 and we will check your specific property.
Yes. Demand in Sunnyvale spikes whenever wildfire smoke settles over the valley, and we prioritize appointments for homes where occupants have asthma or allergies. The work includes sanitizing the duct interior, which matters after smoke events because fine particulate settles inside ducting and re-enters the air stream each time the blower cycles on.
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
"Told me straight that our ducts were in decent shape and didn't need doing every year like the mailer companies claim."
- Rohan Singh"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."
- Destiny Freeman"They photographed every return and supply before starting and sent me the file afterward. No upsell to a sanitizing treatment I didn't need."
- Adriana Castillo