| Business | Phone |
| United Sheet Metal 1855 Elmwood Ave, Warwick 2888 | (401) 461-1492 |
| Muehlberg Sheet Metal Co 105 Pennsylvania Ave, Warwick 2888 | (401) 737-3334 |
| Narragansett Sheet Metal Inc 244 W Natick Rd, Warwick 2886 | (401) 732-8881 |
| National Refrigeration Inc 3600 W Shore Rd, Warwick 2886 | (401) 737-2000 |
| R A Sheet Metal Systems Inc 65 Kent Ave, Warwick 2886 | (401) 738-5797 |
| Read Sheet Metal 103 Glenham Ave, Warwick 2886 | (401) 732-8180 |