Air Duct Cleaning in Kentfield, CA

Frequently Asked Questions

Our ducts are original to the house — is cleaning worth it, or should we just replace them?

It depends on what the duct is made of and where it runs. In the estate-era Kentfield homes from the 1920s through the 40s, we often find rigid metal trunks that clean up well and have decades left in them, feeding into later flex runs that have sagged, crushed, or torn where someone crawled past them. In the 1950s-70s hillside builds, the crawlspace flex is usually what gives out first. We inspect before we commit you to anything. If a branch has separated at the boot or the inner liner has broken down, cleaning that run is wasted money and we will say so and point out what needs repair or replacement instead. Cleaning is the right call when the ducts are intact and just loaded with debris.

One wing of the house is always colder than the rest. Is that a duct problem?

Often, partly. Kentfield floor plans are large and spread out, so branch runs to the far wing can be long, and a lot of homes here have two or more air handlers with ductwork split between the attic and the crawlspace in the same house. Restricted, dirty, or disconnected runs make an existing imbalance worse, and cleaning plus resealing connections usually helps. But if the zone was underperforming from the day it was built, or a damper is stuck, cleaning alone will not fix it. We will tell you which of the two you are dealing with instead of selling you a cleaning and letting you find out later.

Why do our crawlspace ducts get damp and musty?

The tree canopy over most of Kentfield keeps the ground and the crawlspace shaded and cool, and the air under these houses stays damp a good part of the year. When the system runs cooling on the upper floors, you get condensation forming on supply metal and on the outside of poorly wrapped flex. That moisture plus the oak and redwood debris, pollen, and spores that work their way into returns is what produces the smell people notice when the heat first kicks on in the fall. Cleaning removes the debris load; we will also flag wrapping or vapor barrier problems that will let it come back.

How soon can you get someone out to Kent Woodlands or the upper lots?

Usually within a few days for a standard visit. Same day is sometimes possible, more so in the quieter stretch of late spring and summer, much less so in September and October when fire-season smoke has people calling about air quality all at once, and again in the first cold week when heating systems come on. If you are up a narrow private drive with limited turnaround, tell us when you book. We schedule those with a little more time built in so the crew is not rushing equipment up a hillside.

What makes one Kentfield job cost more than another?

Square footage and system count, mostly. A single-handler ranch is straightforward. A larger home with multiple handlers, several zones, long branch runs, and registers split between an attic and a crawlspace takes longer, because each system has to be cleaned as its own job and accessing a tight crawlspace is slower work than an attic. Number of supply and return openings matters too, and older estate homes tend to have a lot of them. We walk the house and look at the equipment before quoting, so the number reflects your actual layout instead of an average.