Heating & Air Conditioning in Monte Sereno, CA

What permit does Monte Sereno need for a new furnace, AC or water heater?

A minor building permit, in most cases. The city’s Building and Planning Departments page lists water heater replacement, air conditioning and furnace replacement among the minor permits available online at its ePermits site, usually with no plans required. Homeowners can also get these permits in person at City Hall during business hours. Upgrade Home Services applies for the permit, books the inspection and handles any HERS testing a new system needs. HERS testing is a check by an independent rater, done on many new installs.

Is Monte Sereno part of Silicon Valley Clean Energy?

Yes. Monte Sereno appears on SVCE’s list of communities served, so SVCE supplies the electricity and PG&E delivers it and handles billing. As of November 2026, SVCE’s residential rebate page includes heat pump HVAC and heat pump water heaters for existing homes, with a rule that you apply before installing. You may qualify; call us and we’ll check what applies to your home.

Have you done work near Monte Sereno?

Yes, in nearby San Jose and Campbell. In San Jose we did a Rheem heat pump water heater replacement, and in Campbell we swapped out a worn wall heater for a new Williams model. We don’t have a Monte Sereno project post yet, so we’re pointing you to the closest ones we have. Both are the same kinds of work we offer in Monte Sereno.

What do Monte Sereno homeowners ask us?

• Do I need plans for a simple water heater swap? Usually not. The city lists it as a minor permit with no plans required unless noted.
• Can my gas water heater become a heat pump model? In many homes, yes. We look at space, airflow and your electrical panel before quoting.
• Do you clean dryer vents? Yes. It’s $130 for a standard vent and $175 for a two-story run.
• How often should I change my furnace filter? Every 1 to 3 months, depending on the filter and your home.

Which services matter most in Monte Sereno?

1. Heat pump water heaters
2. Furnace and heating repair
3. AC repair
4. Dryer vent cleaning

Browse all of our cooling, heating, water heater and indoor air quality services.

Who is behind Upgrade Home Services?

A local family. We opened in 2002 and still run the business from 743 Ames Ave in Milpitas. Our California contractor license is CSLB #1066776, covering general building (B) and HVAC (C-20). Monte Sereno is one of 22 Bay Area cities we serve in Santa Clara, San Mateo and southern Alameda counties, and we service all major brands, Amana and Goodman included.