Load calculation and sizing
Equipment is sized to the house, not to the old furnace label. Oversized systems short cycle and cost more.
Adding a heat pump to a Belvedere home? HAXX sizes the system, checks the panel, picks a discreet outdoor location and handles the city permit.
Serving Belvedere Island, Belvedere Lagoon, Corinthian Island, West Shore, Beach Road and San Rafael Avenue and the rest of Belvedere. 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.
Belvedere lots are small, steep or on the water, and neighbors sit close. Where the outdoor unit goes matters as much as which system is chosen.
HAXX compares deck, side-yard and lower-level locations for noise, views and service access, and confirms with the city what review an exterior unit needs.
MCE's heat pump HVAC rebate grows with the home's square footage. Other electrification projects are restricted for 12 months after installation. Confirm eligibility with MCE.
Older island homes often lack usable ducts, so ductless or slim-ducted systems are common. Homes with ducts in good shape can take a ducted heat pump.
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.

Heat pump air handler service.

Lennox ac installation.

Compressor replacement.

Mitsubishi leak detection.

Leaking coil replacement.
MCE offers a heat pump heating and cooling rebate based on home size for eligible single-family homes. Confirm eligibility with MCE.
The City of Belvedere Planning and Building Department. HAXX prepares the application, including any exterior equipment details the city asks for, and meets the inspector.
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.
