8 AC Repair Contractors in Altadena, CA

4.8 avg rating
100 total reviews6 offer 24/7 service
Need emergency service? 6 HVAC providers in Altadena offer 24/7 availability

Get Free AC Repair Quotes in Altadena, CA

Not ready to call? Tell us what you need and we'll connect you with top-rated contractors.

Free, no obligation. We'll show you top contractors you can contact directly.

Top-Rated AC Repair Contractors in Altadena

#1

Prime Air Mechanical Inc.

5.0(42 reviews)

All 42 reviews award 5 stars, with multiple reviewers specifically naming Roger for his non-pushsy sales approach and responsiveness. Customers consistently…

487 E Calaveras St, Altadena, CA 91001
#2

Steve's HVAC & Water Heater Repair

5.0(16 reviews)
24/7

Eight reviewers each award 5 stars, with emergency response mentioned by three customers and same-day arrival during morning hours noted twice. Two reviews…

2333 Lake Ave, Altadena, CA 91001
#3

Metropolitan Heating & AC Repair Altadena

5.0(10 reviews)
24/7

All 10 reviews award perfect 5 stars, with customers naming individual technicians including Alex, Christian, Joab, and Hector. Emergency service appears…

2216 N Lincoln Ave Suite G, Altadena, CA 91001

All AC Repair Contractors (8 total)

Robert's AC & Heating Repair Altadena

5.0(8)
24/7

Eight of eight clients awarded five-star ratings, with consistent descriptors across reviews including quick,…

757 E Altadena Dr #398, Altadena, CA 91001

Horizon Heating & AC Repair Altadena

5.0(7)
24/7

All seven reviewers award 5 stars, with each review praising professionalism and punctuality. Customers…

2235 Lake Ave, Altadena, CA 91001

Air Conditioning Solutions

3.7(12)
24/7

Three of twelve reviewers award five stars, praising technical knowledge and thoroughness. One reviewer cites…

2223 El Sol Ave, Altadena, CA 91001

Top Choice Heating and AC Repair Altadena

5.0(4)
24/7

All four client reviews award five stars, with every testimonial mentioning positive outcomes: reliable…

2095 N Lincoln Ave #378, Altadena, CA 91001

Extreme Comfort Heating & AC Repair

5.0(1)

One client awarded a perfect 5-star rating, specifically praising the company's rapid response during an…

2400 N Lincoln Ave Suite 386, Altadena, CA 91001

AC Repair Costs in Altadena

Typical repair costs for Altadena homeowners, by problem type.

ServiceLowAverageHigh
Diagnostic / service call
Usually credited toward repair
$71$114$190
Refrigerant recharge (R-410A)
$143$333$665
Capacitor replacement
$114$238$428
Fan motor replacement
$238$428$665
Compressor replacement
$760$1,710$2,660
Evaporator coil repair
$380$855$1,425
Labor (hourly rate)
Per hour during business hours
$71$105$143

Prices reflect Pacific coast metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.

AC Repair in Altadena, CA: What to Expect

Altadena sits on the edge of the Los Angeles basin, where a mild Mediterranean climate—summer highs around 84°F and winter lows near 48°F—meets occasional inland heat spikes driven by Santa Ana winds that can push temperatures past 100°F. That variability keeps air conditioning essential and fuels steady demand for ac-repair Altadena; eight local contractors serve the area with an average rating of 4.8 from nearly a hundred reviews.

Concrete pricing for repairs varies by the specific fault and equipment age, and the available top-cost figures were not supplied here, but homeowners should expect a wide range depending on parts, labor, and scope. California requires HVAC contractors to hold a C-20 license from the CSLB, so factor licensing and written estimates into any cost comparison rather than relying solely on low quotes or vague estimates.

Customer highlights weren’t provided, so patterns from reviews point to operational factors to prioritize: six of the eight firms advertise 24/7 availability, and high ratings suggest responsiveness and workmanship matter most. When evaluating options, verify the C-20 license, ask about parts warranties and diagnostic fees, and confirm technician credentials and estimated timelines before scheduling service.

Frequently Asked Questions

AC repair in Altadena typically costs $71-$2,660 depending on the problem. Diagnostic calls run around $75-$200, refrigerant recharges $150-$700, capacitor replacement $120-$450, and compressor replacement $800-$2,800. Most contractors apply the diagnostic fee toward the final repair cost if you proceed.