Load calculation
Equipment sized to the house, its windows and insulation, not to the old unit's label.
New or replacement air conditioning in Fairfield, CA. HAXX sizes systems for inland heat, installs high-efficiency AC or heat pumps and handles permits.
Serving Cordelia, Green Valley, Rancho Solano, Paradise Valley, Lagoon Valley and Downtown Fairfield and the rest of Fairfield. 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.
In Fairfield, cooling capacity matters more than in coastal Bay Area cities. An undersized system runs all afternoon and still falls behind on 100-degree days.
HAXX calculates the cooling load from insulation, windows and sun exposure instead of copying the old unit's size.
A heat pump costs little more than a straight AC in many cases and also replaces gas heating. HAXX prices both.
HAXX applies for the permit on Fairfield BUILD and meets the city inspector.
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.
It depends on the house, not just square footage. HAXX does a load calculation before recommending a size.
Often, yes. A heat pump cools the same way and also heats, which lets you retire an aging gas furnace.
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.
