Load calculation and sizing
Equipment is sized to the house, not to the old furnace label. Oversized systems short cycle and cost more.
Replacing an AC and gas furnace in Brentwood? HAXX sizes a heat pump for East County heat, checks the panel and handles the City of Brentwood permit.
Serving Trilogy at the Vineyards, Summerset, Shadow Lakes, Deer Valley, Carmel Estates and Downtown Brentwood and the rest of Brentwood. 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.
Brentwood summers are far hotter than the Peninsula's, so cooling capacity drives sizing more than winter heat. A room-by-room load calculation keeps the system from short cycling.
HAXX runs a load calculation that accounts for west-facing glass, attic ducts and the long hot afternoons typical of Brentwood.
HVAC work falls under the City of Brentwood EPM (electrical, plumbing, mechanical) permit type, submitted through the city's Electronic Submittal Portal.
Brentwood is not an MCE member city, so PG&E supplies electricity here. Check PG&E and BayREN for current heat pump offers and confirm terms.
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“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
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.
Yes. HAXX submits the mechanical and electrical permit through the City of Brentwood's Electronic Submittal Portal and is on site for the inspection.
PG&E serves Brentwood; the city is not part of MCE. Incentives change often, so check PG&E and BayREN for current heat pump offers before you sign.
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.
