HVAC costs for older SGV and Northeast LA homes.
AC, heat-pump, furnace, duct, IAQ, and controls costs change with access, ducts, panel tie-ins, HERS, and permit requirements. The purpose is not to promise a universal price. It is to show what must be checked before the number means anything.
HVAC service ranges
| Service | Planning range | Common reason it changes |
|---|---|---|
| AC repair | $190 to $1 650 | undersized returns, dirty coils, old disconnects, and attic duct leakage can make a simple AC repair look like a bad system |
| AC replacement | $7 800 to $22 000 | a box swap can fail when the duct static, electrical circuit, condensate route, or condenser clearance is not checked |
| heat pump installation | $9 800 to $26 000 | heat-pump projects can stall when panel load, duct leakage, thermostat wiring, or water-heater electrification plans are ignored |
| furnace repair | $210 to $1 800 | older closet furnaces and gravity-era retrofits need combustion safety, venting, return-air, and filter-door attention |
| ductless mini-split installation | $5 200 to $18 500 | line-set routes, condensate pumps, exterior penetrations, breaker space, and HOA or historic visibility can drive the real scope |
| ductwork and airflow | $450 to $7 800 | new equipment on old ducts can be noisy, inefficient, and uncomfortable if static pressure and returns are wrong |
| indoor air quality | $240 to $4 200 | high-MERV filters, UV gadgets, and portable purifiers only help when airflow, fit, source control, and run time make sense |
| thermostat and controls | $185 to $1 350 | wrong control configuration can make a heat pump run auxiliary heat, short-cycle, or ignore humidity and fan needs |
| emergency HVAC | $240 to $2 600 | emergency HVAC often overlaps with electrical breakers, clogged condensate drains, gas shutoff, or water damage |
Low-end jobs
Lower-cost jobs usually have clear access, intact infrastructure, available parts, no utility changes, no concealed damage, and no large permit or inspection sequence. The diagnosis still matters because a cheap repair that misses a system constraint can become the expensive path.
High-end jobs
Higher-cost jobs usually include replacement equipment, long routing, old material, service upgrade, structural or finish protection, trenching, patching, drain or sewer evidence, HERS or energy-code documentation, or multi-trade sequencing.
Inspection-summary reviews
Circuit & Cistern LA gave us a practical retrofit check across HVAC, electrical, and plumbing instead of three disconnected opinions.
The visit was organized around photos, access, permits, and safety. That made the repair plan easier to understand and compare.
We liked that the recommendation explained what to fix now, what to watch, and what to plan before the next equipment replacement.
Questions homeowners ask before booking
Why does Circuit & Cistern LA check air, power, and water together?
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.
Is the booking form on this site?
No. Booking uses the external scheduler at https://nexfield.pro/crm/book?u=205. The site does not create a fake internal booking form.
Why is the phone number pending?
The site is intentionally using one centralized phone placeholder until the real business number is supplied. That prevents fake phone numbers from being published.
Do you publish license numbers on the site?
No license number is shown unless a real license number is supplied by the business owner. The site avoids invented license claims.