7 Commercial HVAC Contractors in Rohnert Park, CA
Top-Rated Commercial HVAC Contractors in Rohnert Park
Ross HVAC And Appliance Service
“Across available reviews, technicians consistently deliver same-day diagnostic response and transparent repair recommendations. Reviewers name specific staff…”
Enviro Heating & Air Conditioning Inc
“363 reviewers have awarded Enviro Heating & Air a 4.9-star average, with multiple five-star reviews specifically naming technicians Jason, Cristian, Cristiano,…”
All Commercial HVAC Contractors (7 total)
Baier Heating and Air Conditioning, Inc.
“All 16 reviews award 5 stars, with technicians named across multiple entries. Fair pricing and reasonable…”
JMS Mechanical
“Four of six reviewers awarded five stars, praising competitive pricing, knowledgeable technicians, and…”
United Mechanical, Inc.
“A single client review contributes to the business's 5-star rating, representing complete satisfaction from…”
Commercial HVAC Costs in Rohnert Park
Commercial system pricing in Rohnert Park. 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 Rohnert Park, CA: What to Expect
Sonoma County's wine country sits roughly 55 miles north of San Francisco, where Pacific marine air keeps summer temperatures comfortable with July highs averaging 79 F. However, occasional heat events push past 100 F, and the region sees about 30 inches of annual rainfall between October and April with winter lows dipping to 37 F. Heating remains necessary for five to six months each year, and while most older homes lacked air conditioning, installation rates climbed sharply after the 2017 Tubbs Fire prompted widespread rebuilding. This climate pattern creates steady demand for Commercial HVAC in Rohnert Park, where nine contractors currently serve the area with an average rating of 4.2 stars across over 1,400 customer reviews.
Cost considerations in this market reflect system size and service scope. Annual maintenance for a single rooftop unit typically ranges from $475 to $1,900, while small business contracts under 5,000 square feet run $950 to $4,750 annually. Mid-size commercial buildings between 5,000 and 25,000 square feet see annual contract costs between $3,325 and $9,500. California requires all HVAC contractors to hold a C-20 Warm-Air Heating, Ventilating, and Air-Conditioning license from the Contractors State License Board, ensuring baseline competency for commercial work.
Customer feedback points to specific technicians who earn repeated recognition. At Ross HVAC And Appliance Service, reviewers consistently praise same-day diagnostic response and transparent recommendations, with technicians like Dimitri, Bob, and Viktor named across multiple five-star reviews. Enviro Heating & Air Conditioning Inc. earns similar praise with technicians Jason, Cristian, Tyler, and Alex mentioned for their communication and workmanship. Elevated Electric maintains a perfect five-star average across 24 reviews, with clients specifically noting technician Chris for his punctual, meticulous approach and clear communication throughout each project.