Short answer: Circuit & Cistern LA handles heat pump installation by checking the symptom, the system around it, and the local constraints that can change the repair. For this service, that means we plan heating and cooling electrification with panel capacity, duct condition, utility rebate documentation, and permit path in mind.
The key risk is simple: heat-pump projects can stall when panel load, duct leakage, thermostat wiring, or water-heater electrification plans are ignored. That is why the page includes cost drivers, what can go wrong, permit context, utility overlap, homeowner prep, and local pages instead of only a generic "call now" pitch.
LADWP, SCE, and Pasadena Water and Power territories can change rebate and service-upgrade sequencing. The visit starts with symptom photos, model labels, shutoff access, and the relevant route from the equipment to the panel, pipe, drain, duct, or exterior location.
Typical planning range: $9 800 to $26 000. The low side usually assumes clear access, existing infrastructure that can stay, and no major hidden defects. The high side usually involves replacement equipment, utility involvement, difficult routing, permit or inspection sequence, concealed damage, or multi-trade coordination.
| Path | When it fits | What can change the scope |
|---|---|---|
| Repair | The equipment or fixture is serviceable and the failure is isolated. | Old parts, unsafe wiring, bad shutoffs, inaccessible cleanouts, or failed venting. |
| Replacement | The system is at end of life, unsafe, inefficient, or no longer compatible with the home. | Permits, HERS, panel capacity, pipe material, duct sizing, condensate, or gas sizing. |
| Retrofit sequence | Several home systems should be staged so one upgrade does not block the next. | EV charger, heat pump, HPWH, ADU, remodel, repipe, or whole-home rewiring plans. |
Misconception: Heat pumps fail below freezing in Southern California.
Reality: The basin sees overnight lows in the 30s a few weeks per year. A cold-climate inverter heat pump like the Mitsubishi MXZ-3C30NA holds 100 percent rated capacity at 5 degrees outdoor and the Daikin Aurora rates to -13 degrees. For Pasadena, La Canada edge, and Mount Washington ridge, a standard inverter unit handles every recorded winter night without backup strip heat.
Misconception: Any electrician can run the circuit and call it done.
Reality: A 3-ton heat pump with electric backup pulls 60 amps at 240V, which under NEC 220.83 may push a 100A panel into a load calculation failure. Many SGV homes still have a 100A SCE service. The install requires a panel load calc, often a panel upgrade to 200A under NEC 408.4, and a HERS rater verification under Title 24 Part 6 section 150.0(h) before final.
Misconception: A heat pump can drop into the existing furnace footprint with no duct work.
Reality: Heat pumps deliver air at roughly 95 to 105 degrees supply versus a gas furnace at 130 to 140 degrees. The ductwork has to move more cubic feet per minute to deliver the same BTU, so a return that was marginal on the old furnace becomes loud and underperforming. Static pressure should drop to under 0.5 in.w.c. on the new equipment, often requiring return upsize.
Avoid the dual-fuel hybrid sold as a hedge in homes that have no existing gas furnace. The hybrid pitch (heat pump above 35 degrees, gas below) only makes sense if you already own a working furnace and modulating control. Adding a gas branch and a new furnace alongside a heat pump in a Linda Vista or Garvanza home costs 4,000 to 7,000 dollars in equipment that runs maybe 80 hours per year.
Decline the no-load-calc quote that sizes by square footage alone. A 1,400 sq ft uninsulated lath-and-plaster Brookside cottage and a 1,400 sq ft post-2010 stuccoed remodel have different load profiles by a factor of 1.6. Manual J is required for permit; if the contractor will not produce one, the system is being guessed and the SCE TECH Clean California rebate paperwork will reject without it.
The whole-home dehumidifier add-on at 2,800 to 4,200 dollars is rarely justified inland. Coastal Long Beach and Santa Monica humidity profiles do not match Alhambra or Mission 261. A correctly sized inverter heat pump dehumidifies adequately in cooling mode; the add-on dehumidifier is sold to make up for an oversized compressor that short-cycles. Solve the sizing problem instead.
The second upsell is the proprietary smart thermostat tied to the brand for 380 to 650 dollars when an Ecobee Premium or Honeywell T10 Pro at 220 to 280 dollars runs the same equipment with the same staging. Verify the heat pump uses standard 24V control wiring, not communicating-only, and pick the thermostat on its merits.
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Detached ADU 720 sq ft. 18,000 BTU Mitsubishi sized at calculated 16,400 BTU. The mini-split was the easy part, the harder part was sequencing the 60A subpanel install before the drywall close-up so the line set whip and the branch circuits ran in the same chase. They got it right. Annandale neighborhood.
Heat-pump retrofit in a 1924 craftsman. The 100A Zinsco was the actual problem, not the HVAC. Square D QO 200A upgrade, new 30A 240V dedicated circuit for the air handler, future-proofed a 50A stub for an EV. LADWP cut-in card scheduled 12 days out, meter pulled 09:15 and set 14:40 same day. Inspector signed off without corrections.
Wall behind the laundry was wet to the touch. Tech used acoustic and thermal, isolated the cold side at the meter, and found a slow split on a 3/4-inch L copper that had been rubbing against a stud nail for years. Single drywall opening, swapped a 22-inch section, pressure tested and let it sit overnight before closing the wall. Methodical.
Older SGV and Northeast LA homes often have connected constraints. A heat pump may need panel capacity, a water-heater change may need venting or electrical work, and an AC leak may be condensate plumbing rather than refrigerant.
No. Booking uses the external scheduler at https://nexfield.pro/crm/book?u=205. The site does not create a fake internal booking form.
Standard dispatch is Monday–Friday 7:00 AM to 7:00 PM and Saturday 8:00 AM to 4:00 PM. After-hours emergency triage available 7 days a week for active leaks, sparking panels, no-cooling, no-heat, and gas-appliance concerns.
License documentation is shared during the booking flow once a scope has been agreed. Inspector-facing paperwork (LADBS, Pasadena Permit Center, LA County Building and Safety) lists the responsible licensed contractor for the specific permit pulled.
Send the symptom, equipment photos, panel photo, shutoff location, access constraints, and urgency. The booking path stays external so there is no fake form and no invented phone number.