| Business | Phone |
| Advanced Air Conditioning 605 W Covina Blvd, San Dimas 91773 | (909) 592-5733 |
| Affordable Air Conditioning 969 Wellington Rd, San Dimas 91773 | (626) 332-2408 |
| Air Control Contractors San Dimas 91773 | (626) 332-3555 |
| Airdyne Mechanical San Dimas 91773 | (909) 599-9760 |
| Alber's Air Cond & Heating Svc San Dimas 91773 | (909) 599-2169 |
| Cool Time Air Cond & Heating 1205 Saint George Dr, San Dimas 91773 | (909) 592-7312 |
| Four Seasons Air Conditioning San Dimas 91773 | (909) 592-7765 |
| General Heating & Air Cond San Dimas 91773 | (909) 599-7751 |
| Hamilton Refrigeration 1136 Via Verde Pmb D015, San Dimas 91773 | (909) 865-8887 |
| John A Martin Heating & Ac 271 W Allen Ave, San Dimas 91773 | (909) 599-9641 |
| John A Martin Htg & Air Cond San Dimas 91773 | (626) 332-7444 |
| Paul's Air 545 W 4th St, San Dimas 91773 | (909) 592-4245 |
| Wade & Son Heating & Air Cond 1144 Hastings Ct, San Dimas 91773 | (909) 599-9742 |