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How many HVAC companies are in San Diego, CA?
There are 317 HVAC companies in San Diego, CA. 257 of them (81%) have a website.
317
HVAC companies listed
81%
have a website
2.3
per 10,000 residents
Selling to HVAC companies in San Diego?
Small Fish reads each one’s website and keeps the ones that fit what you sell, like “no online booking”, with a phone, an email and a one-line reason to reach out.
Find the ones worth contacting →How San Diego compares
San Diego ranks 11 of 12 cities we counted for HVAC companies per resident.
| City | HVAC companies | per 10,000 |
|---|---|---|
| The Bronx, NY | 1,367 | 9.3 |
| Manhattan, NY | 1,379 | 8.1 |
| Queens, NY | 1,297 | 5.4 |
| Phoenix, AZ | 797 | 5 |
| Brooklyn, NY | 1,313 | 4.8 |
| Houston, TX | 1,106 | 4.8 |
| Philadelphia, PA | 745 | 4.6 |
| Chicago, IL | 752 | 2.7 |
| San Antonio, TX | 366 | 2.6 |
| Los Angeles, CA | 960 | 2.4 |
| San Diego, CA | 317 | 2.3 |
| New York, NY | 1,352 | 1.6 |
Other businesses in San Diego
- dentists: 3,549
- auto repair shops: 2,354
- chiropractors: 795
- veterinarians: 585
- physical therapists: 539
- med spas: 466
- optometrists: 451
- plumbers: 386
- house cleaning services: 296
- landscapers: 243
- electricians: 219
- pest control companies: 178
- painters: 166
- roofers: 155
How we count
From the open Overture Maps business listings (release 2026-08-19.0), within San Diego’s boundary, counted in October 2026. Listings data, not a census: a few may have closed or moved, and a business filed under another category is not included. Population is the city’s own figure from the same release’s boundaries.