Load calculation and sizing
Equipment is sized to the house, not to the old furnace label. Oversized systems short cycle and cost more.
Planning a heat pump for your San Ramon home? HAXX sizes it for Tri-Valley heat, checks the panel and handles the city permit from start to finish.
Serving Gale Ranch, Windemere, The Bridges, Twin Creeks, Canyon Lakes and Crow Canyon and the rest of San Ramon. 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.
San Ramon is served by MCE, the community choice provider, with PG&E delivering the power. Inland heat means the cooling load usually sets the equipment size, not the heating load.
HAXX runs a room-by-room load calculation. Two-story Dougherty Valley homes often need zoning or a second system to keep upstairs bedrooms comfortable.
MCE and BayREN list incentives for heat pump equipment and related upgrades for San Ramon customers. Programs change, so confirm current terms before you sign.
HAXX applies through San Ramon's CSS Permitting System and schedules the mechanical and electrical inspections.
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“Their technician was professional, honest, and took the time to explain the problem and the repair process clearly. Instead of pushing for an expensive replacement, they repaired our HVAC system and helped us save a significant amount of money. The work was completed carefully, and our air conditioner is now working well.”
“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.”
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.
San Ramon customers can look at MCE programs and BayREN incentives. Eligibility and amounts change, so HAXX recommends confirming current terms with each program before signing.
The City of San Ramon Building Division. HAXX submits through the city's CSS Permitting System 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.
