Vet Clinics in Thorold, Ontario3 veterinary clinics in Thorold, Ontario.HomeClinicsOntarioThoroldClinicsRachel Thomas — 2 Sullivan Ave, Thorold, ON L2V 2X9, Canada (5 stars)Thorold Veterinary Hospital — 4 Pine St N, Thorold, ON L2V 2N9, Canada (4.4 stars)Niagara Veterinary Emergency Clinic (NVEC) — Unit 1A, 3300 Merrittville Hwy, Thorold, ON L2V 4Y6, Canada (3.5 stars)