| Business | Phone |
| 76 Smog Test Only Station 640 Garfield Ave, El Cajon 92020 | (619) 337-6873 |
| Auto Smog Check Center 1464 Graves Ave # 103, El Cajon 92021 | (619) 440-4643 |
| Broadway Smog Test Only 1214 Broadway, El Cajon 92021 | (619) 579-7777 |
| Broadway Smog Test Only 1243 Greenfield Dr, El Cajon 92021 | (619) 440-7218 |
| Ed's Union 500 N 2nd St, El Cajon 92021 | (619) 442-5563 |
| Smog Only 1027 Greenfield Dr # I, El Cajon 92021 | (619) 401-7110 |
| Rose Automotive 1286 Greenfield Dr, El Cajon 92021 | (619) 444-0294 |
| Qwik Smog 580 El Cajon Blvd # A, El Cajon 92020 | (619) 442-1012 |
| Pepper Drive Test Only 7921 Winter Gardens Blvd, El Cajon 92021 | (619) 441-9304 |
| Perfect Performance 595 El Cajon Blvd, El Cajon 92020 | (619) 588-8850 |
| On The Mark Smog & Auto 1243 Greenfield Dr # C, El Cajon 92021 | (619) 579-0388 |
| Mike's Arco 1410 E Main St, El Cajon 92021 | (619) 442-1621 |
| J J Smog Test Only 267 N Marshall Ave, El Cajon 92020 | (619) 579-0143 |
| K B Smog & Automotive 210 W Bradley Ave # F, El Cajon 92020 | (619) 562-7087 |