Should ducts be cleaned or sealed?

Sealing fixes lost air, while cleaning removes dust and debris. Leaky ducts in a dirty crawlspace pull dust in, so sealing often helps with both.

Can old ducts work with a new heat pump?

Sometimes. A heat pump can need more airflow than an old furnace was set up for, so the contractor should check duct sizes before reusing them.

Home > Duct Repair & Sealing

Duct Repair and Sealing in Oakland

Plenty of Oakland houses run their ducts through a crawlspace or attic that nobody visits. Joints pull apart, flex duct sags or gets crushed, and old insulation falls away. The furnace or AC keeps running, but part of the air never reaches the rooms. Call (510) 288-2541 if some rooms stay hot or cold no matter where the thermostat is set.

Worker kneeling to check airflow at a floor register — Weak flow at a far register often traces back to a loose or crushed run.

Signs the ducts are the problem

Weak airflow at registers far from the furnace
Rooms that get dusty soon after cleaning
A crawlspace or attic that feels warm in winter
Rooms that never match the thermostat
Rattling or whistling at the registers

What duct repair involves

The contractor traces the runs, reconnects and supports loose sections, seals joints with mastic or approved tape and replaces crushed flex duct. A leakage test with a fan and a pressure gauge shows how much air escapes before and after the work.

If the duct work is part of a furnace, AC or heat pump change, the state energy code may call for HERS testing by a third-party rater. The California Energy Commission suggests homeowners ask the installer or rater for the completed HERS forms.

Rooms That Never Feel Right?

Call and have a local contractor check the ductwork.

(510) 288-2541

Asbestos on old ducts

Some ducts in older homes are wrapped in white or gray paper-like insulation that may contain asbestos. Leave it alone and mention it when you call, because it changes how the job gets done. The Energy Commission notes that asbestos can exempt some tests, duct leakage testing among them.

Questions about Duct Repair & Sealing in Oakland

Should ducts be cleaned or sealed?: Sealing fixes lost air, while cleaning removes dust and debris. Leaky ducts in a dirty crawlspace pull dust in, so sealing often helps with both.
Can old ducts work with a new heat pump?: Sometimes. A heat pump can need more airflow than an old furnace was set up for, so the contractor should check duct sizes before reusing them.

Talk to a contractor serving Oakland

The call is free. You reach an independent contractor who works in Oakland, and they take it from there.

(510) 288-2541