Load calculation and sizing
Equipment is sized to the house, not to the old furnace label. Oversized systems short cycle and cost more.
Switching a Tiburon home to a heat pump? HAXX sizes the system, checks the panel, plans a quiet outdoor location and handles Town permits.
Serving Old Tiburon, Bel Aire, Del Mar, Reed Heights, Tiburon Crest and Belveron Gardens and the rest of Tiburon. 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.
In Tiburon, installing or relocating an exterior HVAC unit calls for design review as well as a building permit, and the Town has a noise policy for mechanical equipment.
The Town lists exterior heating and cooling units among items that need design review. HAXX picks a location and equipment that work with the Town's HVAC noise policy.
Steep lots, decks and view corridors limit where a condenser can sit. Ducted, slim-ducted and ductless options are compared for each layout.
MCE supplies electricity to most Tiburon accounts and lists home electrification incentives. Check MCE's current offers before signing a contract.
Rated 4.8 across 515+ reviews on Housecall Pro, Google and Facebook. Read more reviews.
“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.
A building permit, and design review when an exterior unit is installed, replaced or moved. Applications go through the Town's eTRAKiT portal, and HAXX prepares them.
Not under the reach code described for 2026. It applies to larger additions and alterations and to panel upgrades, not to a working furnace. Check with the Building Division for your project.
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.
