Room-by-room comfort
Each indoor head has its own thermostat, so bedrooms, offices and living areas can run at different temperatures.
Mini-split installation in Menlo Park for homes without ducts, ADUs, additions and warm upstairs rooms. Single and multi-zone, permits included.
Serving Belle Haven, the Willows, Allied Arts, Central Menlo, Sharon Heights and Felton Gables and the rest of Menlo Park. 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.
Plenty of older Menlo Park homes in the Willows and Allied Arts were built without ductwork. Mini-splits add heating and cooling without opening walls for ducts.
Each head runs on its own setting, which suits bedrooms over garages and rooms that overheat in afternoon sun.
A single-zone heat pump on a dedicated circuit heats and cools a backyard unit. Brands include Mitsubishi Electric.
Menlo Park allows electric equipment at existing homes to encroach into side and rear setbacks. HAXX plans placement and line-set routes.
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
Mitsubishi leak detection.

Heat pump installation.

Outdoor heat pump installation.

Heat pump air handler installation.

Heat pump air handler service.

Lennox ac installation.

Compressor replacement.

Leaking coil replacement.
Often, yes. HAXX sizes each zone to the room's heat loss so a multi-zone system can carry the house.
The heat pump rebate from WestLight Energy (formerly Peninsula Clean Energy) can apply when the system replaces gas heating. Confirm eligibility with WestLight Energy.
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.
