- Bylaw enforcement: 519-837-2529
- Emergency locates (ON1Call): 1-800-400-2255
- Operations (e.g. traffic lights, road obstructions): 519-837-5628, select “1” for emergencies
- Noise complaints (Guelph Police): 519-824-1212
- Parks: 519-837-5626
- Parking exemptions: 519-836-7277
- Power outages (Guelph Hydro): 519-822-3010
- Spills: Guelph Environmental Protection Officer 519-837-5629 / Ministry of the Environment Spills Action Centre: 1-800-268-6060
- Wastewater Services: 519-837-5629
- Water Services: 519-837-5627
- Railway concerns and maintenance: 519-501-3221
