Air Duct Cleaning in San Jose, CA

Frequently Asked Questions

1. My ranch house in Cambrian runs the AC from May through October — how often should the ducts actually get cleaned?

   Valley-floor homes with long cooling seasons pull more air through the system than almost anywhere else in the region. What comes in with it is dry-season silt, arterial soot and whatever the nearest infill project is kicking up. For a 1960s Cambrian or Willow Glen tract house on original or once-replaced ducting, every few years is a reasonable rhythm. If you've had construction next door, a remodel inside, or you're seeing dust resettle on surfaces within a day or two of cleaning them, that's the real signal, not the calendar.

2. I've got an older central San Jose bungalow with ducting that was added later. Is that a problem?

   It's the most common thing we deal with in the older central districts. Those 1920s–40s houses were never built with ductwork, so what's there was retrofitted into crawlspaces, closets and dropped soffits, usually with tight turns and runs squeezed into whatever path was available. Access is the main constraint. Sometimes there are few or no proper openings, and we have to work from the registers and the plenum rather than ideal mid-run access points. It's workable, it just takes longer than a straight-run tract house.

3. What actually drives the cost up or down on a San Jose home?

   System size and layout do most of it. A 1980s–2000s flex-duct subdivision home on the south or east edge with one air handler and a clean trunk line is on the simpler end. What adds to it here: two systems, common in larger Evergreen and Blossom Valley homes; high register counts in sprawling single-story ranches; retrofit ducting in a central-district bungalow with poor access; and older sheet metal plenums where we find deteriorating cloth tape that needs attention before anything gets sealed back up. We'd rather look at your system and tell you what it is than guess from the square footage.

4. What goes wrong most often in San Jose duct systems?

   Two things, split by era. In the 1950s–70s tract stock, it's the original cloth tape on sheet metal plenums and takeoffs. Decades of heat cycling dries the adhesive out, the tape curls and lets conditioned air leak into the crawlspace or attic while pulling dust in. In the newer flex-duct subdivisions, it's sagging and crushed runs where flex has pulled loose from a boot or settled across a joist, which chokes airflow to one or two rooms. We flag both when we find them, and in a lot of cases the airflow complaint people call about is the cause rather than dirt.

5. Can you come out today, and how fast do you normally get here?

   Same-day happens, more often early in the week and outside the peak of cooling season. Once we're into the long summer stretch, demand across the valley climbs and a day or two out is more realistic. San Jose is large, and traffic on the freeway corridors shapes our routing, so morning slots in one part of town and afternoon slots in another is how we usually run it. Call and we'll tell you honestly what's open rather than booking you in and sliding the window.