Load calculation and sizing
Equipment is sized to the house, not to the old furnace label. Oversized systems short cycle and cost more.
Swapping a gas furnace for a heat pump in Half Moon Bay? HAXX sizes the system for coastal heating loads, checks the panel and pulls the permit.
Serving Ocean Colony, Arleta Park, Highland Park, Miramar and the Main Street downtown and the rest of Half Moon Bay. Share your address to confirm availability.

A heat pump replaces a furnace and AC with one system for heating and cooling. Good results come from sizing, layout and electrical planning done before equipment is ordered.
Equipment is sized to the house, not to the old furnace label. Oversized systems short cycle and cost more.
Keep existing ducts when they are in good shape, or go ductless where ducts are missing, leaky or impossible to run.
HAXX electricians review the panel and service before the install, so a surprise panel upgrade does not appear mid-project.
Mitsubishi Electric and American Standard systems, among others, matched to the home and budget.
HAXX pulls the mechanical and electrical permits and meets the city inspector.
We point you to the rebates your address qualifies for and provide the equipment documentation programs ask for.
Half Moon Bay adopted a building electrification ordinance in 2022, and its electrification page lists a goal of capping gas lines in existing buildings by 2045. A heat pump is the usual first step.
Coastal homes see long, cool heating seasons and few hot days. HAXX sizes for heating first and selects equipment that holds capacity in damp weather.
Placement out of direct wind and spray, raised pads and corrosion-resistant coil options help outdoor units last near the ocean.
WestLight Energy (formerly Peninsula Clean Energy) lists rebates for heat pumps that replace gas or propane heating. Confirm current terms with WestLight Energy before you sign.
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
Heat pump installation.

Outdoor heat pump installation.

Heat pump air handler installation.

Heat pump air handler service.

Lennox ac installation.

Compressor replacement.

Mitsubishi leak detection.

Leaking coil replacement.
WestLight Energy (formerly Peninsula Clean Energy) serves Half Moon Bay and lists rebates for heat pump systems that replace fossil fuel heating. Amounts and eligibility change, so verify with WestLight Energy first.
Yes. HAXX applies through the City of Half Moon Bay's Cloudpermit portal and meets the building inspector.
Yes. Bay Area winters are mild, and correctly sized heat pumps heat comfortably through them. Sizing and duct condition matter more than the brand.
Most single-system replacements take one to three days on site. Permits, equipment lead times and any electrical work add to the overall timeline.
Share the property, equipment and questions you have in mind.
(408) 901-8315
Call HAXX to discuss your property and scheduling.
