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 North San Jose, CA
Air Duct Repair in North San Jose usually means fixing leaking flex-duct and original sheet-metal runs in 1960s-1980s tract homes, or rebuilding trunk lines in the 1970s-1990s office and R&D buildings around Moffett Park and First Street. The valley’s year-round freeway particulate, combined with seasonal wildfire smoke pushed down by the Diablo Winds, loads duct systems with fine ash and soot faster than most homeowners expect. Elmwood Air Duct Cleaning has served North San Jose since 2018 with repair capability alongside cleaning, so we fix what we find rather than clean around it. Call (855) 506-8636. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Why North San Jose Homes Are Different
North San Jose is not a typical suburban duct market. The neighborhoods between North First Street, Trimble Road, and the 101/880/237 interchange grew up around Silicon Valley’s industrial core, and that shapes everything about the work. Most of the housing stock dates from the 1960s through the 1980s: Alum Rock-adjacent east side tracts, North Valley townhomes, and clusters of older single-family homes that still carry their original flex-duct and sheet-metal runs. Those systems were sealed with tape and mastic that breaks down after four decades, so air leaks at the joints are common.
Then there is the particulate load. North San Jose sits where three major freeways meet, and fine road dust and brake-pad particulates get drawn into return ducts year-round. During fire season, the Diablo Winds push smoke and ash from the Santa Cruz Mountains and East Bay hills straight into the valley floor. Technicians routinely find duct interiors and filters at both older tract homes and nearby R&D buildings coated with a fine gray layer after a single fire season, not just the usual household dust. That means cleaning here has to be deeper, and the system has to be checked for leaks at the same time, or the air quality problem returns within months.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
Our Main North San Jose Services
North San Jose homeowners and property managers call us most often about two things: getting years of accumulated particulate out of their ducts, and making sure the dryer vent is not a fire hazard. Both are covered below, with dedicated pages for the full details.
Air Duct Cleaning in North San Jose
Duct cleaning in North San Jose has to account for more than routine household dust. The freeway corridors around 101, 880, and 237 put fine road particulate into return ducts all year, and the Diablo Winds add wildfire ash to that mix every fire season. We run professional Rotobrush rotary-brush systems through the full duct run, paired with Nikro HEPA-rated negative-air vacuum units, so particulates are captured at the source rather than recirculated into the room. See what’s inside your ducts before and after. For the complete breakdown of what the job involves, visit our Air Duct Cleaning in North San Jose page.

Dryer Vent Cleaning in North San Jose
Lint accumulation in dryer vents is a leading cause of residential fires, and North San Jose’s housing stock makes the problem worse. Many 1960s-1980s tract homes have long, multi-bend vent runs that trap lint at the elbows, and few homeowners know how much has built up because the vent is hidden behind the dryer. We clean dryer vents as a standalone safety service, not an upsell, consistent with NFPA guidance on dryer-fire prevention. Your dryer vent is a fire risk. Here’s how we fix that. See the full scope on our Dryer Vent Cleaning in North San Jose page.

Air Duct Repair in North San Jose
Air duct repair in North San Jose typically means one of two situations: a duct run in a 1960s-1980s tract home has separated at a joint or been crushed in an attic, or a 1970s-1990s commercial/R&D space around Moffett Park has failing sheet-metal runs that need replacement sections. The valley’s dry summers and the fine particulate load from the freeway corridors accelerate breakdown of old tape and mastic, so leaks are more common here than in coastal climates. A leaking duct system pulls unfiltered air from attics and wall cavities into the living space, while also wasting conditioned air into unconditioned spaces. Air Duct Repair is a core service for us, not an add-on. We repair what we find, not just clean around it.
Ductwork Repair
Signs you need it
Rooms that never reach the thermostat setpoint, visible dust streaks around supply registers, and a sudden jump in the utility bill with no other explanation all point to ductwork leaks or separations.
What it costs in North San Jose
Ductwork repair in North San Jose typically runs $350-$950 depending on how many joints need to be re-sealed and whether access requires attic or crawlspace work.
How we do it
We trace the full duct run, locate every point of leakage or separation, then re-secure joints with mastic and mechanical fasteners, and seal the repaired sections before testing the system pressure.
Duct Replacement
Signs you need it
If the flex-duct liner is torn, the insulation jacket is crumbling to the touch, or sheet metal has corroded through, replacing the section is cheaper and more reliable than repeated patching.
What it costs in North San Jose
Duct replacement in North San Jose typically runs $800-$2,500 depending on the length of run, diameter, and whether it’s flex or rigid sheet metal being replaced.
How we do it
We remove the failed section, size the replacement to match the system’s CFM requirements, install the new duct with sealed, insulated connections, and confirm airflow at the register.
What Air Duct Repair Costs in North San Jose
| Item | Typical range in North San Jose |
|---|---|
| Ductwork repair (joint sealing, re-securing) | $350 – $950 |
| Duct replacement (flex or sheet metal section) | $800 – $2,500 |
| HVAC duct installation (new branch or trunk line) | $1,200 – $4,800 |
How long does air duct repair take in North San Jose?
Most ductwork repair jobs in North San Jose are completed in half a day to a full day. Larger replacement projects or installations in commercial spaces around Moffett Park may take two days depending on access and the number of runs involved.
Do I need a permit for duct repair in North San Jose?
Most duct repair and replacement work that is not part of a new HVAC installation does not require a separate permit, but any project that touches the mechanical system may. We can advise on the right path for your specific job, and most cities in the area ask that you check with the building department before work begins.
Brands We Service in North San Jose
We work with Abatement Technologies, Guardsman, Rotobrush, and Nikro equipment in the field. That means we arrive with professional-grade machinery for the cleaning and repair work itself, not consumer shop-vac setups. For the full list of systems and brands we service, visit our brands page.
See the difference
Before
After
Before
After
Before
AfterPricing for Air Duct Cleaning Company in North San Jose, CA
| Service | Typical range in North San Jose |
|---|---|
| Full air duct cleaning (whole system) | $350 – $850 |
| Dryer vent cleaning | $130 – $260 |
| Ductwork repair | $350 – $950 |
| Duct replacement | $800 – $2,500 |
| Ductwork installation | $1,200 – $4,800 |
| Air duct replacement | $1,200 – $3,800 |
| HVAC duct installation | $1,800 – $5,500 |
| Commercial duct cleaning (per system) | $450 – $1,100 |
What pushes price up in North San Jose is access: many 1960s-1980s attics are cramped and hot, and commercial spaces around Moffett Park often require working around active operations. The written estimate sets the final price, and we agree on one flat price per system before any work starts. Call (855) 506-8636 for a free estimate.
Neighborhoods We Serve in North San Jose
We cover the full North San Jose area, from the residential streets of Alum Rock-adjacent east side to North Valley and the commercial corridor along First Street and around Moffett Park.
- North Valley
- Alum Rock-adjacent east side
- Moffett Park area
- Orchard
- Penitencia
Response time across North San Jose is typically one to two hours for scheduled calls, tightest near the North First Street corridor where our trucks are moving between jobs through the day.
Service Area – Cities Near North San Jose
Our trucks also cover nearby communities around North San Jose. We work in Berryessa, CA just to the east, Alviso, CA up along the bay, Downtown San Jose, CA to the south, and South San Jose, CA for larger jobs that pull us across the valley.
Serving North San Jose, CA – Our Local Coverage Area
We serve North San Jose and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs About Air Duct Cleaning Company in North San Jose
We dispatch crew members across North San Jose from 7am to 7pm, Sunday through Friday, and most scheduled calls in the area are reached within one to two hours. Call (855) 506-8636 to book. We answer 24/7, and a call outside dispatch hours is booked into the next opening.
Most North San Jose HOAs do not regulate interior duct cleaning or repair work, but some townhome and condo associations have rules about roof, attic, or shared-wall access. We can provide the documentation your HOA needs before the work begins, and we have worked with property managers around North Valley and the east side.
Yes. North San Jose is unusual because the same service area includes residential tracts and the R&D and light-industrial buildings around Moffett Park and First Street. We clean and repair duct systems in both settings, and the pricing table above reflects the typical ranges for each job type.
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 North San Jose Customers Say
"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."
- Claudia Ramirez"My wife's allergies had been bad in this house since we moved in. It's been two months since they did the ducts and it's noticeably better. Not a miracle, but real."
- Travis Vaughn"Ran a negative air machine on the whole system rather than the shop vac on a stick that the cheap outfit down the road uses. Showed me the before and after photos from inside the trunk line and it was genuinely disgusting."
- Tim Sutton