6 HVAC Service Contractors in Altadena, CA
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Top-Rated HVAC Service Contractors in Altadena
Prime Air Mechanical Inc.
“All 42 reviews award 5 stars, with multiple reviewers specifically naming Roger for his non-pushsy sales approach and responsiveness. Customers consistently…”
Action Duct Cleaning Company
“Fifty-five reviews produce a 4.5-star average with zero ratings below 4 stars. Customers frequently mention Marvin by name, with five distinct reviews…”
All HVAC Service Contractors (6 total)
Metropolitan Heating & AC Repair Altadena
“All 10 reviews award perfect 5 stars, with customers naming individual technicians including Alex, Christian,…”
Horizon Heating & AC Repair Altadena
“All seven reviewers award 5 stars, with each review praising professionalism and punctuality. Customers…”
HVAC Service Costs in Altadena
General HVAC service pricing across maintenance, repair, and installation in Altadena.
| Service | Low | Average | High |
|---|---|---|---|
Service call / diagnostic | $71 | $114 | $190 |
Routine tune-up (single system) | $67 | $119 | $190 |
Standard repair (avg) | $143 | $570 | $1,140 |
Major repair (compressor, heat exchanger) | $1,425 | $2,375 | $3,325 |
New system installation (mid-range) | $6,175 | $9,975 | $13,300 |
Full HVAC replacement AC + furnace combined | $11,011 | $12,759 | $13,395 |
Prices reflect Pacific coast metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.
HVAC Service in Altadena, CA: What to Expect
Altadena’s position on the northern edge of the Los Angeles metro brings a mild Mediterranean climate with summer highs near 84°F and winter lows around 48°F, but nearby inland valleys and Santa Ana winds can push temperatures much higher and spike AC demand. That variability keeps area residents calling for timely repairs and seasonal tune-ups, and the six contractors serving the neighborhood average a 4.7 rating from 141 reviews; four offer 24/7 hvac-service Altadena.
Pricing across local jobs varies by scope and system age; simple maintenance and diagnostics run lower than compressor or full-system replacements, while ductwork repairs and refrigerant recovery increase bills. Exact top-cost items depend on make and model and on-site assessment, so expect estimates up front. All contractors must hold the C-20 Warm-Air Heating, Ventilating, and Air-Conditioning license from the California Contractors State License Board, which should be verified before work begins.
Customer highlight details aren’t available here, but the review landscape suggests steady satisfaction overall. When vetting providers, prioritize verified reviews, clear written estimates, documented warranties, and 24/7 response if you’re concerned about heat-related emergencies. Ask about parts availability, turnaround for replacements, and whether technicians provide before-and-after photos so you can compare proposed work with results.