Load calculation
Equipment sized to the house, its windows and insulation, not to the old unit's label.
Adding or replacing air conditioning in Portola Valley? The Town's reach code calls for a heat pump. HAXX designs, permits and installs it.
Serving Westridge, Central Portola Valley, Portola Valley Ranch, Alpine Hills, Brookside and Woodside Highlands and the rest of Portola Valley. Share your address to confirm availability.

Central air conditioners and heat pumps that also cool. Every installation starts with sizing and a look at your ducts and electrical panel, not with a model number.
Equipment sized to the house, its windows and insulation, not to the old unit's label.
Compare a straight AC with a heat pump that also heats. In many homes the heat pump costs little more and replaces the furnace later.
Leaky or undersized ducts waste a new system. HAXX checks airflow before quoting.
Circuit, disconnect and panel capacity reviewed by HAXX electricians before install day.
American Standard and Mitsubishi Electric, among others, matched to the home and budget.
Mechanical and electrical permits pulled, city inspection scheduled.
Portola Valley's 2022 reach code asks that a new or replacement AC condenser be a heat pump. It keeps the existing furnace working while preparing the house for electric heat later.
A heat pump cools like an AC and can heat too. Paired with the existing furnace, it gives a path to retire gas when the furnace wears out.
Equipment pads, line-set routes and noise toward neighbors all matter on hillside lots. HAXX plans the location before quoting.
The circuit, disconnect and any panel work are handled by HAXX's own electricians, not a subcontractor.
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
Outdoor heat pump installation.

Lennox ac installation.

Attic plenum resealing.

American standard rooftop package unit.

Heat pump installation.

Heat pump air handler installation.

Heat pump air handler service.

Compressor replacement.
The Town's 2022 reach code requires a heat pump for new or replacement AC condensers. HAXX confirms the current requirement with Planning & Building first.
WestLight Energy lists rebates for heat pumps that replace gas heating. Confirm eligibility with WestLight Energy before you sign.
Most replacements take one to two days on site. Permits, equipment lead times and any electrical work add to the overall timeline.
A heat pump cools exactly like an AC and also heats. If your furnace is aging, it is worth comparing both on the same estimate.
Share the property, equipment and questions you have in mind.
(408) 901-8315
Call HAXX to discuss your property and scheduling.
