1/4/2021 COVID UPDATE: PLEASE READ! We continue to ask for your consideration for our medical staff. PLEASE DO NOT COME TO OUR CLINIC IF YOU ARE UNDER QUARANTINE OR ISOLATION DUE TO COVID, if you have been exposed or suspect that you have been exposed to the Corona virus, have tested for Corona virus in the last 10 days, either negative or positive. Our clinic waiting room is closed at this time. We continue to offer curbside service for appts. & product pickups, etc. Please call our front office upon arrival and our staff will direct you as needed. If your pet is experiencing a traumatic injury or serious illness, our medical staff may grant permission for 1 adult to accompany their pet into our facility. You will be asked to complete a COVID screening and MASKS ARE REQUIRED FOR ALL INSIDE OUR BUILDING. We feel these protocols are necessary in order to provide uninterrupted medical care to our patients. Thank you for your understanding during this difficult time. We look forward to the time that we can welcome all our clients, patients, families into our facility.

Hours
- Monday: 8am-12 & 12:30- 6:00pm
- Wednesday: 8am - 12 & 12:30- 6:00pm
- Tuesday: 8am-12 & 12:30-6:00pm
- Thursday: 8am - 12 & 12:30-6:00pm
- Friday: 8am - 3pm
- 1st & 3rd Saturdays: 8:00am - 12:00noon
Why Choose Us?
At Mercersburg Veterinary Clinic, we are pet owners who have dedicated our lives to the care of animals, as well as the support and continued education of pet owners. We uniquely understand that your pet is a special and irreplaceable member of your family. We pride ourselves on our ability to work as a team to prevent and relieve pain and sickness, to restore health, and to foster the bond between a family and their pets. We maintain a clinic facility that has the most modern diagnostic equipment so that we can offer the best medical, dental, surgical, diagnostic and preventative care. The basis of this promise to you and the foundation of your pet’s good health and vitality are found in the comprehensive preventive veterinary medical services we provide. We look forward to serving both you and your furry friends!
Our Services
What Our Clients Say
Excellent service, we have been bouncing around to different vets for 2 years trying to find one we feel comfortable with and Dr. Horst has been great, I think we are done bouncing around finally !
William Hoop
October 2018
We have been clients/patients with Dr. Horst for over 35 years. He and his staff have always given us the best service, advice, and compassion. Our pets have benefitted in so many ways from the care they received over the years. Great staff!!
Betsy King
October 2018
Always a great experience at the office, I don’t live in Mercersburg but in a neighboring state. I would rather come to Mercersburg Vets then any of the 3 or more Veterinary clinics in my area.
Jill Baum
December 2018
Dr. Horst has been the family Vet for years. He has cared for our horses, and various number and breeds of dogs. He has always been honest, straight forward and caring. He is not pushy nor arrogant. He is compassionate and we trust him like family.
Barbara Brzezanski
June 2019
You were able to fit us in quickly when we had a hurting dog. The diagnosis came back quickly once we were there. Great facilities and great 1st experience! We will definitely be back!
Laura Lewis
July 2019
You guys always take the time to help, to answer questions, to squeeze someone in if an emergency arises. Always cheerful. Everyone there is fantastic! Thank you for being there for us!
Evalee Amodeo
October 2018
Friendly, Clean and Very Inviting. Wish my doctor’s office was as good lol. Best Vet ever and I won’t take my dogs anywhere else but here. They listen and they care. Your pet is family and that’s how they make you feel.
Lindsey Rife
August 2019
Emergencies
We feel it is important to be available to our clients after hours should a pet emergency arise. For emergencies please call our regular clinic phone number 717.328.5171, press 2 to go to emergency mailbox. PLEASE speak clearly and be sure to leave your full name, phone number, pet's name and nature of the emergency. Your call will be returned within 30 minutes. Depending on the severity of the case, you may be directed to the area Emergency Clinic for after hours care.