Ductwork Installation in Walnut Creek and the Bay Area
The best equipment can’t fix leaky, undersized, or crushed ducts. If some rooms never get comfortable or your energy bill doesn’t match your usage, the duct system is often the real problem.
We install new duct runs, replace damaged sections in attics and crawl spaces, and seal and insulate so the air you paid to condition actually reaches the rooms you live in.
Ductwork we handle: New duct runs and registers for additions and remodels; Replacement of damaged or undersized ducts; Attic and crawl space installations; Sealing and insulation to current standards; Airflow balancing after installation; Free estimate before any work begins.
Book with OTTER HVAC at (650) 900-0440. Flat $69 diagnostic on repairs. Free in-home estimates on new installations. EPA 608, OSHA, and NATE certified technicians.
Serving Concord, Walnut Creek, Pleasant Hill, San Ramon, Danville, Oakland, Berkeley, San Francisco, and nearby East Bay cities. Hours: 7:00am–5:00pm, seven days a week.
Related: All services · Pricing · Contact · furnace installation
Frequently asked questions
How do I know if my ducts are the problem?
Classic signs: rooms that never reach temperature, weak airflow at some registers, and dusty air. A $69 diagnostic visit includes checking accessible ductwork before we recommend anything.
Do you work in crawl spaces and attics?
Yes — most Bay Area duct problems live in crawl spaces and attics, and that’s where we do a lot of our work.
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References and credentials
- U.S. DOE Energy Saver
- EPA Section 608
- EPA Section 608 refrigerant certification
- U.S. Department of Energy — Energy Saver
Authority sources: U.S. DOE Energy Saver · EPA Section 608