| Business | Phone |
| Westmount Poste De Pompiers 19 Rue Stanton, Westmount H3Y 3B1 | (514) 989-5222 |
| Westmount Service De L'Energie 995 Ch Glen, Westmount H3Z 2L8 | (514) 989-5201 |
| Westmount Hotel De Ville 4333 Rue Sherbrooke O, Westmount H3Z 1E2 | (514) 989-5200 |
| Westmount Victoria Hall 4626 Rue Sherbrooke O, Westmount H3Z 1G1 | (514) 989-5227 |
| Westmount Hydro Westmount 995 Ch Glen, Westmount H3Z 2L8 | (514) 925-1414 |