| Business | Phone |
| Brooks Mechanical 5 Valley View Dr, Rising Sun 21911 | (410) 658-0822 |
| Comfort Master 301 Ebenezer Church Rd, Rising Sun 21911 | (443) 967-0340 |
| Jackson's Precision Heat & Air 239 Biggs Hwy, Rising Sun 21911 | (410) 658-4954 |
| Jacksons Precision Heat & Ac 26 Surrey Ln, Rising Sun 21911 | (410) 658-4953 |
| Ron Smith's Svc & Repair E Main St, Rising Sun 21911 | (410) 658-9941 |
| Williams Heating & Air 1148 Calvert Rd, Rising Sun 21911 | (410) 658-3794 |