Top 7 HVAC companies in San Francisco, California

How to choose

San Francisco sits in a mild coastal climate with low heating and cooling loads, yet state code now favors heat-pump equipment and requires third-party HERS verification on every changeout. Public listings for HVAC work remain thin, so any ranking must account for sparse data. Companies appear here only because their published numbers survived Bayesian adjustment toward the national mean of 4.764. Review volume, listing category, website presence, and stated availability supply the remaining signals. This shortlist rests entirely on those public records.

The shortlist

HVAC & Heat Pump Installation San Francisco

One review produced the raw 5.0 rating. Bayesian adjustment pulled that figure down to 4.812 because the national mean sits at 4.764 and a single review supplies little statistical weight. The firm lists itself as a general contractor at 1927 Taraval St #1929, San Francisco, CA 94116 and maintains a public website. It does not claim 24/7 availability. Those signals placed it first. The phone number is (510) 857-8250. Review depth remains too low to predict performance on a Title 24 job.

San Francisco Heating and Cooling

One review again produced a raw 5.0. Adjustment lowered the score to 4.812 for the same reason: the national mean of 4.764 exerts strong pull on tiny sample sizes. The firm operates as a general contractor from 343 Onondaga Ave, San Francisco, CA 94112 and lists a public website. No 24/7 claim appears. Its phone number is (415) 286-2540. Nothing in the listing reveals whether the contractor routinely handles coastal Title 24 documentation.

HVAC & Heating Systems Installation San Francisco

Zero reviews left a raw rating of 0. Adjustment raised the score to 4.804, moving it upward toward the national mean of 4.764. The firm lists as a general contractor at 1182 Market St #425, San Francisco, CA 94102 and maintains a website. It does not advertise round-the-clock service. The phone number is (510) 359-4177. Absence of any review history leaves open whether the contractor has completed permitted work in San Francisco.

Heating & Air Conditioning San Francisco

Two reviews produced a raw 5.0. Adjustment lowered the score only slightly to 4.779 because two reviews still sit far below the volume needed to escape the national mean of 4.764. The firm appears as a general contractor at 1607 20th St, San Francisco, CA 94107 and carries no website listing. No 24/7 availability is stated. The phone number is (415) 942-9881. Limited review counts prevent any inference about heat-pump experience.

Heating & Cooling San Francisco

Two reviews again yielded a raw 5.0. Adjustment produced the same 4.779 score. The firm operates as a general contractor from 2427 3rd St, San Francisco, CA 94107 without a listed website. It makes no 24/7 claim. The phone number is (415) 855-7160. The data give no indication of prior work under current Title 24 verification rules.

San Francisco Heating and Air Conditioning Inc..

Zero reviews left a raw rating of 0. Adjustment raised the score to 4.764, matching the national mean exactly. The firm lists as a general contractor at 148 Townsend St, San Francisco, CA 94107 and shows no website. It does not advertise 24/7 service. The phone number is (628) 229-3860. No performance record exists to evaluate.

San Francisco Heating and Air Conditioning Inc..

Zero reviews produced the same raw 0 rating and the same adjusted score of 4.764. The firm appears at the identical address, 148 Townsend St, San Francisco, CA 94107, with the same phone number (628) 229-3860. It lists as a general contractor without a website or 24/7 claim. Duplicate listings add no new information.

Cost

Installed-cost data for San Francisco diverge sharply. One source places a typical full system between $11,200 and $13,900, while 2025 invoiced averages reached $23,465 with the upper quartile at $33,723. Labor is published at $165 per hour. Permit fees range from $250 to $700. Both sources are cited because the gap itself is the usable information. Higher figures likely reflect Title 24 documentation, HERS testing, and coastal access constraints that the lower range omits. Homeowners should request line-item quotes that separate equipment, labor, permits, and verification fees rather than rely on either published band.

Licensing and permits

California maintains statewide licensing through the Contractors State License Board. The relevant classification is C-20 Warm-Air Heating, Ventilating and Air-Conditioning. A $25,000 contractor bond is required by statute, and workers-compensation insurance is mandatory whenever employees are present; no employee-exemption filing is permitted for C-20 work. Building permits themselves are issued by the local city or county building department, not by the CSLB. Homeowners can check any license at the board’s public lookup tool. The state does not publish insurance certificates, so direct confirmation with the carrier remains necessary. Permit timing and inspection requirements vary by jurisdiction inside San Francisco.

Incentives

California’s Home Energy Rebates program remains in Phase 1 and offers up to $8,000 for qualifying heat pumps. Additional utility incentives through TECH Clean California, BayREN and PG&E range from $1,000 to $3,000 or more. No statewide income-tax credit for HVAC equipment exists in 2026; federal 25C and 25D credits expired at the end of 2025. The 48E commercial credit survives only for third-party-owned systems. Because TECH requires an enrolled contractor, homeowners must first confirm network participation before any rebate application. Title 24 plus mandatory HERS verification further narrows the pool of eligible installers.

Climate

San Francisco falls primarily in IECC zones 3B and 3C with a balanced mixed load of roughly 2,200 heating degree days and 1,000 cooling degree days. Winter design temperature is 44 °F and summer design reaches 89 °F, yet coastal humidity stays low. Many coastal properties require no air conditioning at all, while inland pockets need modest cooling. State code strongly favors heat pumps. Equipment sizing must respect Title 24’s 16 climate zones rather than generic IECC tables; oversizing remains a common failure point. Year-round mild temperatures reduce peak service pressure but do not eliminate the need for proper duct sealing and refrigerant verification on every permitted changeout.

This shortlist was assembled solely from public listing data and the published formula. It is not a review of completed work.