Skip to content 
HVAC & Electrical Services in Cupertino, CA
Your local Cupertino team for heating, cooling, and electrical work, from heat pump and mini-split systems to panel upgrades, EV chargers, and rebate-qualified installations. Serving Cupertino and the surrounding Santa Clara County. No subcontractors, no handoffs, with warranty coverage up to 12 years on parts and labor.
Our Services
Heating, Cooling, and Electrical Work Built for Cupertino Homes
Cupertino sits at the western edge of the valley, up against the foothills. Summer afternoons run hot, evenings cool off fast, and winters stay mild enough that a heat pump handles the whole year on its own. The catch in Cupertino is rarely the climate. It is the house. Sun exposure, tree cover, and elevation change how much work a system has to do from one side of the home to the other.
Many homes here started as single-story houses from the 1960s and 1970s and have been remodeled since, often with a second story, an addition, or a converted garage. The original system was sized for the original house. Add square footage and it cannot keep up, which is why upstairs bedrooms sit warm all afternoon while the living room stays cold. The fix is usually zoning or a separate system for the added space, not simply a bigger unit. We run the load calculation room by room and show you where the shortfall actually is.
Ozone Service is licensed in both HVAC and electrical, which matters in Cupertino because these projects rarely stay on one side of the line. A heat pump, an EV charger, and a remodel circuit can all land on the same panel in the same year. Switching to a heat pump rarely requires a panel upgrade. We check the panel during the free estimate so you know what your home needs before you commit to anything.
Flexible Financing Available —Upgrade Now, Pay Over Time. Ask us about payment plans.
Why Homeowners Choose Ozone Service
Rebates & Incentives for Bay Area Homeowners
Ozone Service has secured over $350,000 in rebates in the past 6 months. We help Bay Area homeowners reduce the cost of upgrading to energy-efficient heating and cooling systems. Depending on your location, utility provider, and equipment selected, you may qualify for valuable rebates and financing programs. We handle the documentation - most contractors don't.
Free Estimates & Free Diagnostics
No trip fee. No diagnostic charge. We assess the full system, identify the problem, and hand you a written scope and price before any work begins. After fixing a compressor for one of our clients, Tim checked the rest of the system at no extra charge to rule out downstream issues. That's not exceptional - that's how we work.
EPA 608 Certified & BBB Accredited
Handling refrigerant the right way matters. Our EPA 608 certified technicians follow strict standards for refrigerant recovery, leak prevention, and system charging - helping protect the environment while keeping your HVAC system efficient and reliable. BBB Accreditation means there's a paper trail and accountability if anything falls short.
HVAC + Electrical Under One Roof
Heat pump installations require both HVAC and electrical work. Because Ozone Service is licensed in both trades, we provide complete in-house service from start to finish - no need to coordinate multiple contractors. From equipment installation and wiring to permits and final testing, everything is handled under one roof for a smoother, faster project.
Up to 12-Year Warranty on Parts & Labor
We put up to 12 years on both parts and labor in writing - because a system installed correctly shouldn't need to be touched. If your home needs a panel upgrade or additional electrical work as part of the project, that's covered under the same warranty. One scope, one guarantee.
24/7 Emergency HVAC & Electrical Service
AC failed at midnight? Furnace out on a cold weekend? Electrical issue that can’t wait? Our team responds around the clock — same technicians, same quality, any time of day or night.
Recently Completed in the Bay Area
Rebates and Incentives for Cupertino Homeowners
Moving from gas to efficient electric heating and cooling in Cupertino can qualify for significant rebates, and the programs stack, so a local incentive can be combined with the main statewide program. This matters most during a remodel, when a heat pump, a water heater, and electrical work often happen in the same project and more than one program can apply at once.
Cupertino homes are served by PG&E and by Silicon Valley Clean Energy, the community energy provider for Santa Clara County cities, and those programs can stack with other programs available at that time.
Rebate amounts and requirements change and depend on your specific project, so we confirm which programs apply, make sure your installation qualifies, and handle the documentation. Ask us early, because some programs depend on decisions made before the equipment is ordered.
Secured for Bay Area homeowners through local and state rebate programs over the last 6 months
On all City Inspections in the Bay Area
HVAC & Electrical handled 100% in-house
Top-rated expertise on Google, Yelp and Thumbtack
Serving Cupertino and the Surrounding Area
Our technicians are in-house, background-checked, and EPA 608 certified, and every job we complete is permitted, inspected, and backed by our workmanship warranty. We work throughout Cupertino and the neighboring communities of Sunnyvale, Santa Clara, San Jose, Saratoga, Los Gatos, Los Altos, and Campbell, along with the wider Santa Clara County.
Every installation we complete passes city inspection, a 100% pass rate that comes from pulling the proper permits, sizing equipment correctly, and not cutting corners on the parts of the job you cannot see. No subcontractors means one team stays accountable from the first estimate to final sign-off.
What Our Customers Say
Frequently Asked Questions
Upstairs is always hotter than downstairs. Can that be fixed without replacing everything?
Yes, in most cases it can. Uneven temperatures usually come from one system trying to serve two floors through ducts that were never balanced for it. Depending on what you have, the fix can be duct modifications, adding a zone, or putting a small ductless unit in the rooms that run hot. We look at all three before recommending a full replacement.
We are planning a remodel or an addition. When should we bring you in?
Bring us in during the planning stage before walls close. Sizing, duct routing, and electrical are far cheaper to solve on paper than after framing. Early planning also keeps your options open on rebate programs, since some of them depend on choices made before equipment is ordered.
Can we add an EV charger and a heat pump without upgrading the panel?
In many cases, yes. Homeowners assume both together mean a new panel, and that is often not true. We calculate your actual electrical load, and where capacity is tight there are usually options that cost far less than a full panel replacement. If an upgrade really is needed, we tell you why, and our own electricians do the work under the same contract.
Can you heat and cool an ADU or a converted garage?
Yes, we can. These spaces almost always work better on their own system rather than an extension of the main house, since they are used on a different schedule and often have different insulation. A single ductless unit usually covers an ADU, and it is metered and controlled separately from the rest of the home.
Ready to Get Started?
Serving the Greater Bay Area
* and other cities across Santa Clara and San Mateo counties
