Load calculation
Equipment sized to the house, its windows and insulation, not to the old unit's label.
Adding or replacing air conditioning in Sonoma? HAXX installs heat pumps and central AC sized for valley summers, with the panel checked and permits handled.
Serving the Plaza historic district, East Spain Street, West Napa Street, Broadway, the Eastside and the Westside and the rest of Sonoma. 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.
Many older Sonoma homes were built without central air. A heat pump adds cooling and replaces gas heating in one system, and Sonoma Clean Power lists a rebate for qualifying heat pumps.
A heat pump cools like a central AC and also heats, so it can retire an aging furnace at the same time. HAXX prices both options.
Ductless systems avoid opening walls and ceilings in older homes near the Plaza and in additions.
HAXX pulls City of Sonoma mechanical and electrical permits and schedules the final inspection.
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
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.
Often, yes. A heat pump cools like an AC and also heats, and Sonoma Clean Power lists rebates for qualifying heat pumps. HAXX will compare both for your house.
Most replacements take one to two days, plus the city inspection.
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.
