AC Repair in Altadena, CA
Same-day air conditioning repair in Altadena, answered 24 hours a day with an upfront price before any work starts.
- Answered 24/7, including holidays
- Licensed and insured
- Upfront pricing
AC repair in Altadena
Altadena homeowners call us for the same reasons everyone else in the San Gabriel Valley does: the system quit when it was needed most. We see undersized returns starving the blower, decades-old ducts in knee-wall attics, and systems fighting a house with almost no insulation in the original walls.
The housing here is unusually old for Southern California. Craftsman and Spanish Revival homes were never designed around ducted air, so a lot of our work is retrofit: tight attics, no chases, and plaster walls nobody wants opened up.
Permits, Title 24 and Southern California Edison
California is stricter than most states about this. Replacing a condenser or an air handler in Los Angeles County requires a permit, and under Title 24 most changeouts also require HERS verification, where an independent rater tests duct leakage and confirms the refrigerant charge is correct. A contractor who offers to skip the permit is not saving you money. It surfaces at resale, and it voids most manufacturer warranties.
Altadena sits in Southern California Edison territory, and Edison publishes rebates for high-efficiency air conditioners and heat pumps. Worth checking before you replace a system, because the rebate is tied to the equipment's efficiency rating.
What We Do in Altadena
AC Repair
Warm air, weak airflow, short cycling and hard starts diagnosed and fixed on every major brand.
Learn moreEmergency AC Repair
Around-the-clock response when the system quits in a heat wave, including nights and weekends.
Learn moreAC Installation and Replacement
Right-sized replacement systems installed to code, permitted, and HERS verified.
Learn moreAC Maintenance and Tune-Up
Seasonal service that catches a failing capacitor or low charge before it strands you in July.
Learn moreDuctless Mini-Split Systems
Room-by-room cooling for additions, garages and older homes with no ductwork to speak of.
Learn moreDuctwork Repair and Sealing
Leaky attic ducts found, sealed and verified so the cold air reaches the rooms you paid to cool.
Learn moreThermostat Installation
Smart and programmable thermostats wired, configured and actually explained before we leave.
Learn moreHeating and Furnace Repair
No heat, short cycling and pilot or ignition faults repaired, with a safety check every visit.
Learn moreCommercial HVAC Service
Rooftop units and split systems kept running for storefronts, offices and light industrial.
Learn moreWhy Altadena Calls Us
Answered 24/7
Nights, weekends and holidays. Air conditioners do not fail at convenient times.
Price before we start
You approve the full cost up front. The diagnostic fee is in that number, and a midnight call costs what a Tuesday morning costs.
All major brands
Carrier, Trane, Lennox, Goodman, Rheem, American Standard and the rest.
Licensed and insured
Permits pulled and HERS verification handled on changeouts, the way Title 24 requires.
What Does AC Repair Cost in Altadena?
Ranges below are typical Los Angeles market figures reported by industry cost guides in 2026, not our quote. Your actual price depends on the part, the system and access, and you get that number from us before any work begins.
In Los Angeles County, most air conditioning repairs land between $339 and $488, with a service call and diagnosis running about $89 to $149. What decides your number is which part failed. A capacitor, the most common cause of a system that will not start, is roughly $175 to $400. A condenser fan motor is $200 to $700. A compressor is $1,200 to $2,800, which is usually the point where replacing the system makes more sense than repairing it. Those are published Los Angeles market ranges rather than our quote: we give you the exact price before any work starts.
| Job | Typical LA range | What moves the number |
|---|---|---|
| Service call and diagnosis | $89 to $149 | Waived or credited by some companies once you approve the repair. |
| Capacitor or contactor | $175 to $400 | The cheapest common failure, and the most frequent cause of a no-start. |
| Condenser fan motor | $200 to $700 | Less when the part is still under manufacturer warranty. |
| Most common repairs overall | $339 to $488 | The typical middle of the market for a straightforward fault. |
| Compressor replacement | $1,200 to $2,800 | Often the point where replacing the system beats repairing it. |
| Condenser replacement | $1,200 to $4,200 | Depends heavily on tonnage and refrigerant type. |
| Ductless mini-split, single zone | $2,000 to $6,500 | Per zone. Multi-zone systems run higher. |
| Full system changeout | $11,000 to $20,000+ | LA runs roughly 10 to 20 percent above the state average on labour and permits. |
California costs more than most states for a reason. Title 24 requires a permit and, on most changeouts, HERS verification by an independent rater. Labour is higher here, and older homes often need duct or electrical work the quote has to cover. A contractor who comes in far below these ranges is usually skipping the permit, and that surfaces at resale.
The Straight Diagnosis Promise
We tell you what is actually wrong, quote it before we touch anything, and never sell you a system you do not need. If a repair will do, we say so.
Licensed and insured. Permits pulled and HERS verification handled on changeouts.
We Also Cover Near Altadena
Neighbouring areas we reach on the same day.
Serving Altadena and nearby
We cover Pasadena and the surrounding the San Gabriel Valley communities below. Answered 24 hours a day, 7 days a week.
AC Repair in Altadena: Common Questions
Do you actually service Altadena?
How fast can you get to Altadena?
What AC problems do you see most in Altadena?
Do I need a permit to replace my AC in Altadena?
What does a repair cost in Altadena?
Book AC Service in Altadena
Answered 24 hours a day, 7 days a week. Upfront price before any work starts.
Call (626) 469-4305Need AC Repair in Altadena?
Pasadena and the the San Gabriel Valley. Answered 24/7.