Room-by-room comfort
Each indoor head has its own thermostat, so bedrooms, offices and living areas can run at different temperatures.
Ductless mini-split installation in San Carlos for hot upstairs rooms, additions, ADUs and homes without ducts. Single and multi-zone systems.
Serving White Oaks, Howard Park, Devonshire, Beverly Terrace, Cordes and Clearfield Park and the rest of San Carlos. Share your address to confirm availability.

Mini-splits heat and cool rooms without ductwork. They fit homes with no ducts, additions, ADUs, garages and the hot room the central system never reaches.
Each indoor head has its own thermostat, so bedrooms, offices and living areas can run at different temperatures.
A small line set connects each head to the outdoor unit through a wall opening, so there is no duct work to run.
One outdoor unit can serve one room or several, depending on the layout and loads.
Wall, ceiling cassette or concealed ducted heads, chosen around furniture, windows and looks.
Dedicated circuit, disconnect and a clean condensate route planned before the install.
Mechanical and electrical permits and the city inspection handled by HAXX.
Split-level and hillside homes in San Carlos often have rooms the central system never reaches. Ductless heads solve that zone by zone.
Upper floors and bonus rooms on hillside lots get their own zone instead of fighting one thermostat.
A single-zone heat pump on a dedicated circuit heats and cools a backyard unit or garage conversion.
Line sets and condensate lines are routed to keep exterior walls tidy and drains sloped correctly.
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.
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It can when it replaces gas heating under WestLight Energy (formerly Peninsula Clean Energy) rules. Check current terms first.
A single zone usually takes a day; multi-zone systems often take two to three days.
Often, yes, with a multi-zone system or several heads. A load calculation shows how many zones a home needs.
A single-zone system is often one day. Multi-zone systems typically take two to three days.
Share the property, equipment and questions you have in mind.
(408) 901-8315
Call HAXX to discuss your property and scheduling.
