12 Commercial HVAC Contractors in South San Francisco, CA
Top-Rated Commercial HVAC Contractors in South San Francisco
Atlas Heating "The Original Since 1908" (Atlas Trillo is NOT us, please don't be confused)
“37 of 38 reviewers award 5 stars, with customers specifically praising on-time arrivals, transparent pricing, and thorough clean-up after jobs. Negative…”
Ace Furnace Co Inc
“All 18 reviewers awarded 5-star ratings, with customers frequently mentioning same-day or immediate service availability, skilled technicians, and reasonable…”
All Commercial HVAC Contractors (12 total)
Johnstone Supply
“Fifteen of 16 reviewers award 5 stars, with customers specifically praising Edwin's follow-through on…”
Peninsula Heating BY JOSEPH BYRNE
“All 8 reviews award 5 stars, with Joe mentioned specifically in multiple accounts for professionalism and…”
Air Conditioning & Heating, Inc.
“Eight of nine reviewers award five stars, with consistent praise for fast response times, honest pricing, and…”
Slakey Brothers
“Of 6 detailed reviews, 4 rate the business 5 stars citing excellent selection, great prices, and helpful…”
Chemical Exhaust
“Both reviews award 5 stars, with reviewer Karla Janeth Ochoa specifically praising the team's professionalism…”
Bayhill Heat & Air.
“The single 5-star review simply states 'The Best,' indicating high satisfaction. Website testimonials…”
RMI Mechanical Contractors
“One customer review exists, assigning a one-star rating and describing a vehicle operation concern unrelated…”
Commercial HVAC Costs in South San Francisco
Commercial system pricing in South San Francisco. 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 South San Francisco, CA: What to Expect
South San Francisco sits along the Bay, where the marine layer keeps summers cool and foggy around 68 F while winters hover near 46 F. This cool Mediterranean climate means businesses need heating and ventilation far more than air conditioning. With 14 commercial contractors serving the area and an average rating of 3.8 across 481 reviews, Commercial HVAC in South San Francisco remains driven by warmth, air quality, and year-round ventilation needs.
For business owners budgeting for ongoing service, annual maintenance per rooftop unit runs $475 to $1,900, while annual service contracts for small businesses under 5,000 square feet typically cost $950 to $4,750. Mid-size facilities between 5,000 and 25,000 square feet see annual contract ranges from $3,325 to $9,500. In California, commercial HVAC contractors must hold a C-20 Warm-Air Heating, Ventilating, and Air-Conditioning Contractor license from the Contractors State License Board, ensuring qualified hands handle complex heating and ventilation systems.
Reviewers consistently highlight several contractors who earn strong recommendations. Ace Furnace Co Inc holds a 4.9 rating with all 18 reviewers awarding five stars, frequently citing same-day or immediate service availability, skilled technicians, and reasonable pricing. Triton Appliance Repair draws praise for same-day response, transparent pricing, and technicians who explain problems clearly across 289 reviews averaging 4.8 stars. Atlas Heating earns recognition for on-time arrivals, transparent pricing, and thorough clean-up after jobs, with 37 of 38 reviewers giving five stars.