Load calculation and sizing
Equipment is sized to the house, not to the old furnace label. Oversized systems short cycle and cost more.
HEAT PUMP INSTALLATION · UNION CITYHeat Pump Installation
Heat Pump Installation
in Union City, CA.
Swapping a gas furnace or worn AC for a heat pump in Union City? HAXX sizes the system room by room, checks the panel and pulls the city permit.
Serving Decoto, Alvarado, Holiday Park, Casa Verde, West View Estates and the Union City Station District and the rest of Union City. Share your address to confirm availability.
4.8 rating · 515+ reviewsHVAC & electrical, one teamPermits handledCA Lic #1081990
Heat pump installation,
planned properly.
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.
Ducted or ductless
Keep existing ducts when they are in good shape, or go ductless where ducts are missing, leaky or impossible to run.
Electrical capacity check
HAXX electricians review the panel and service before the install, so a surprise panel upgrade does not appear mid-project.
Brands we install
Mitsubishi Electric and American Standard systems, among others, matched to the home and budget.
Permits and inspection
HAXX pulls the mechanical and electrical permits and meets the city inspector.
Rebate paperwork
We point you to the rebates your address qualifies for and provide the equipment documentation programs ask for.
UNION CITY DETAILSPlanning a heat pump
Planning a heat pump
in Union City.
Union City enforces the 2025 California Building and Energy Codes. A heat pump replacing an existing HVAC unit is permitted through the Building Division, and the city asks for a CF1R energy compliance form.
01
Load-based sizing
Many Union City tract homes have had window, insulation or room changes over the years. HAXX sizes from the house as it is today, not from the old unit's label.
02
Electrical capacity
A heat pump draws a large 240-volt load. HAXX reviews the panel during the estimate so any electrical work is known before install day.
03
Incentives
Ava Community Energy runs an online incentive finder that lists rebates and tax credits by ZIP code and household. Check current terms with each program before you sign.
What customers say
about HAXX.
Rated 4.8 across 515+ reviews on Housecall Pro, Google and Facebook. Read more reviews.
★★★★★
“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.”
A CLEAR NEXT STEPFrom your first question
From your first question
to a considered plan.
01
Share your starting point
Existing equipment, home layout and what you want to improve.
02
Review the property
Sizing, airflow, equipment placement and electrical needs.
03
Compare the scope
Options, exclusions, permit requirements and any eligible incentives.
04
Plan installation
Confirm equipment, scheduling and handover details with HAXX.
HAXX ON SITEReal work.
Real work.
Real homes and businesses.
A closer look at recent heating and cooling work by HAXX.
THE PEOPLE BEHIND THE WORKHands-on work.
Hands-on work.
A real look inside.
On site during a commercial VAV box repair: access above a suspended ceiling, equipment and the work in progress.
Explore recent projectsRecent Projects
Heat Pump Installation
Heat pump installation.
Outdoor Heat Pump Installation
Outdoor heat pump installation.
Heat Pump Air Handler Installation
Heat pump air handler installation.
Heat Pump Air Handler Service
Heat pump air handler service.
Lennox AC Installation
Lennox ac installation.
Compressor Replacement
Compressor replacement.
Mitsubishi Leak Detection
Mitsubishi leak detection.
Leaking Coil Replacement
Leaking coil replacement.
GOOD TO KNOW
Heat Pump Installation in Union City: questions, answered.
What permit does a heat pump need in Union City?
Replacing an HVAC unit needs a permit from the Union City Building Division. The city's contractor application lists HVAC replacement and asks for a CF1R form. HAXX prepares the paperwork and meets the inspector.
Which rebates apply to a heat pump in Union City?
It depends on your household and the equipment. Ava Community Energy's incentive finder lists current options by ZIP code. Confirm eligibility with each program before you commit.
Can a heat pump heat my house on cold nights?
Yes. Bay Area winters are mild, and correctly sized heat pumps heat comfortably through them. Sizing and duct condition matter more than the brand.
How long does an installation take?
Most single-system replacements take one to three days on site. Permits, equipment lead times and any electrical work add to the overall timeline.
LET’S TALK ABOUT YOUR PROPERTYTell us what you need.
Tell us what you need.
We’ll start there.
Share the property, equipment and questions you have in mind.
(408) 901-8315
Call HAXX to discuss your property and scheduling.