Rooftop Package Unit Installation in Walnut Creek and the Bay Area
Rooftop package units put heating and cooling in one cabinet — common on Bay Area light commercial buildings and some homes. Replacing one takes crane logistics, curb matching, and electrical and gas work done right.
We handle the full swap: disconnecting and removing the old unit, setting the new one on a matched curb adapter, reconnecting ducts, gas, and power, and verifying airflow and refrigerant charge before sign-off.
Every package unit installation includes: Site check: curb, structure, and access assessment; Crane coordination and old unit removal; Curb adapter and duct connections; Gas, electrical, and condensate hookup; Startup, airflow, and refrigerant verification; 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 · vrf system installation
Frequently asked questions
Do you handle the crane and roofing side?
Yes — we coordinate the crane lift and use curb adapters so the new unit sits and seals correctly on your existing roof curb.
Residential or commercial?
Both. We install package units on homes that use them and on light commercial properties like small offices and retail spaces.
How long is the changeout?
A typical like-for-like package unit changeout is done in one day, including the lift and full startup testing.
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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