Load calculation and sizing
Equipment is sized to the house, not to the old furnace label. Oversized systems short cycle and cost more.
Replacing a furnace, an old AC or both? HAXX plans and installs heat pumps in Mountain View, sized to the house and checked against your electrical panel before anything is ordered.
Serving Old Mountain View, Monta Loma, Waverly Park and Cuesta Park and the rest of Mountain View. Share your address to confirm availability.

A heat pump replaces a furnace and AC with one system for heating and cooling. Good results come from sizing, layout and electrical planning done before equipment is ordered.
Equipment is sized to the house, not to the old furnace label. Oversized systems short cycle and cost more.
Keep existing ducts when they are in good shape, or go ductless where ducts are missing, leaky or impossible to run.
HAXX electricians review the panel and service before the install, so a surprise panel upgrade does not appear mid-project.
Mitsubishi Electric and American Standard systems, among others, matched to the home and budget.
HAXX pulls the mechanical and electrical permits and meets the city inspector.
We point you to the rebates your address qualifies for and provide the equipment documentation programs ask for.
Mountain View is one of the most electrification-minded cities in the South Bay. Its reach code shapes what you can install, and local rebates can offset the cost.
Under Mountain View's reach code, when a single-family home replaces its air conditioner, the replacement must be a heat pump. Planning for a heat pump from the start avoids a second decision later.
Silicon Valley Clean Energy lists rebates for heat pump HVAC that replaces a gas furnace, with extra help for income-qualified households. Amounts and terms change, so confirm before you sign.
Eichlers usually need ductless or low-profile layouts. Old Mountain View bungalows often need a panel and duct review at the same time.
Rated 4.8 across 515+ reviews on Housecall Pro, Google and Facebook. Read more reviews.
“Thorough diagnostics of A/C system, identified and repaired the issue quickly!”
“Service was performed well and on time. Service person was highly skilled and provided easy to understand options to deal with the issue. Price for diagnostics was reasonable and easy to pay online.”
“Our commercial building had several HVAC problems, and their team carefully diagnosed each unit, explained the available options, and never pressured us into unnecessary replacements. They worked hard to repair what could be repaired and kept us informed throughout the process.”
Existing equipment, home layout and what you want to improve.
Sizing, airflow, equipment placement and electrical needs.
Options, exclusions, permit requirements and any eligible incentives.
Confirm equipment, scheduling and handover details with HAXX.
A closer look at recent heating and cooling work by HAXX.

On site during a commercial VAV box repair: access above a suspended ceiling, equipment and the work in progress.
Explore recent projects
Heat pump installation.

Outdoor heat pump installation.

Heat pump air handler installation.

American standard rooftop package unit.

Heat pump air handler service.

Lennox ac installation.

Compressor replacement.

Mitsubishi leak detection.
Mountain View customers are served by Silicon Valley Clean Energy, which lists heat pump HVAC rebates for replacing a gas furnace. Eligibility and amounts change, so verify current terms with SVCE.
Yes. HAXX pulls the mechanical and electrical permits with the City of Mountain View and handles the inspection.
Yes. Bay Area winters are mild, and correctly sized heat pumps heat comfortably through them. Sizing and duct condition matter more than the brand.
Most single-system replacements take one to three days on site. Permits, equipment lead times and any electrical work add to the overall timeline.
Share the property, equipment and questions you have in mind.
(408) 901-8315
Call HAXX to discuss your property and scheduling.
