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 Monte Sereno for Eichlers, additions, offices and rooms the central system misses. Single and multi-zone systems.
Serving Via Sereno, the Bicknell Road area, Daves Avenue, Greenwood Lane and the El Sereno foothills and the rest of Monte Sereno. 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.
The 16 Eichlers on Via Sereno, built in 1969 and 1970, have no attic for ductwork. Ductless heads are a common answer there and in bonus rooms elsewhere in town.
Line sets are routed along exterior walls or roof edges and planned with the owner to protect the post-and-beam look.
Each head controls its own room, which helps homes with hot upstairs rooms or a cold addition.
Mitsubishi Electric and American Standard ductless systems, sized room by room.
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. Projects in Monte Sereno are marked with the city.

On site during a commercial VAV box repair: access above a suspended ceiling, equipment and the work in progress.
Explore recent projects
Mitsubishi leak detection.

Carrier furnace diagnosis and repair.

Attic plenum resealing.

Heat pump installation.

Outdoor heat pump installation.

Heat pump air handler installation.

Heat pump air handler service.

Lennox ac installation.
Many homes can be fully heated and cooled with a multi-zone system. HAXX runs a room-by-room load calculation first.
SVCE lists rebates for heat pump HVAC, and ductless heat pumps can qualify. Check current program terms before you commit.
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.
