6 Commercial HVAC Contractors in Irwindale, CA
Top-Rated Commercial HVAC Contractors in Irwindale
Johnstone Supply
“Six of eight reviewers award 5 stars, with recurring mentions of same-day part availability and staff willingness to track down hard-to-find components. The…”
Geary Pacific Supply
“Fifteen reviews all award 5 stars, with customers consistently praising counter staff named Jeff and Chris for their knowledge and willingness to assist.…”
All Commercial HVAC Contractors (6 total)
Family Comfort Heating & AC Repair Service Irwindale
“All three reviewers awarded 5-star ratings, with consistent praise for installation efficiency, technician…”
MasterCorp
“Based on available data, MasterCorp has received one client review contributing to a 4-star rating, providing…”
Commercial HVAC Costs in Irwindale
Commercial system pricing in Irwindale. Actual costs vary significantly by building size and system type. Request a site-specific quote.
| Service | Low | Average | High |
|---|---|---|---|
Annual maintenance (per rooftop unit) Quarterly inspections | $475 | $950 | $1,900 |
Annual contract (small business, < 5K sqft) | $950 | $2,375 | $4,750 |
Annual contract (mid-size, 5K-25K sqft) | $3,325 | $6,175 | $9,500 |
Basic rooftop unit replacement | $6,175 | $9,500 | $14,250 |
Small business full system (< 5K sqft) | $7,600 | $15,200 | $23,750 |
Mid-size building (5K-25K sqft) | $23,750 | $47,500 | $76,000 |
Operating cost (per sqft annually) Utility + maintenance | $2 | $4 | $6 |
Prices reflect Pacific coast metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.
Commercial HVAC in Irwindale, CA: What to Expect
Irwindale sits within the Los Angeles basin, where the Mediterranean climate brings summer highs near 84 F and winter lows around 48 F. Inland valleys experience Santa Ana wind events pushing temperatures above 100 F, intensifying air conditioning needs across the metro. Six commercial HVAC contractors serve Irwindale businesses with an average rating of 3.8 stars based on 54 client reviews. This climate variability keeps commercial cooling and heating systems working year-round, making reliable service contracts essential for local operations.
Annual maintenance for a rooftop unit runs $475 to $1900, while small business contracts under 5K square feet cost between $950 and $4750 annually. Mid-size facilities between 5K and 25K square feet see annual contract prices from $3325 to $9500. California law requires HVAC contractors to hold a C-20 Warm-Air Heating, Ventilating, and Air-Conditioning Contractor license from the CSLB, verifying qualified professionals handle commercial installations and repairs.
Customer insights reveal distinct strengths among suppliers. Johnstone Supply draws praise for same-day part availability and staff willingness to track down hard-to-find components, with six of eight reviewers awarding 5 stars. Geary Pacific Supply receives uniformly positive feedback, with all fifteen reviews granting 5 stars and customers specifically noting counter staff named Jeff and Chris for their product knowledge and helpful approach. Baker Distributing holds a 4.6-star average, with two five-star reviewers complimenting service quality and staff demeanor, though one three-star review mentioned an unfriendly interaction despite completing the job successfully.