New clients welcome! Limited time free first wellness exam (terms apply) - Book Today!

Why Allenstown Animal Hospital?

Proudly serving the citizens of Allenstown and it's surrounding areas.

City's Best

2022 Winner

Named the 2022 City's Best Award winner for outstanding service and customer satisfaction in Allenstown.

200+

Five-Star Reviews

And counting!

Urgent Care

Same-day

Provides emergency and urgent care during business hours, ensuring prompt attention for your pet.

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New Clients: Claim Your First Exam Free

Book your first exam, and then mention this offer to one of our team members at your appointment!

Book Appointment

Conditions Apply: See "Terms of Service" for Details.

Welcome to Allenstown Animal Hospital

Animals we see:

Dogs

Cats

Hours

  • Mon-Fri:8:00 AM - 5:30 PM
  • Closed on Sat and Sun

Address

  • 9 River Rd, Allenstown, NH 03275, USA

Our Veterinary Services

Our top-of-line facility is equipped to handle every aspect of veterinary care from preventative medicine to emergency services for your pet.

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About Allenstown Animal Hospital

Allenstown Animal Hospital veterinarians and technicians are committed to excellence. Our world-class veterinary staff combines cutting-edge veterinary technology with decades of experience to provide the highest level of care for your pet. We understand that a pet is part of the family. Our goal is to provide each one with a long, healthy and happy life. The day your pet enters our hospital it becomes part of our family too. From new puppies and kittens to graying seniors, we are there every step of the way. Our comprehensive suite of veterinary services ensures that every aspect of their wellbeing is given the excellent care they deserve.

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Meet Our Dedicated Team

At Allenstown Animal Hospital in Allenstown, NH, we're dedicated and passionate animal lovers just like you. Our experienced team is committed to placing your pet's health and well-being above anything else. We look forward to getting to know you!

Testimonials

247 Total Reviews
4.8

LARC Family

reviww-icon2 weeks ago

We love it here! Everyone is very friendly and accommodating! I love that they use an app and you can schedule your appointments right on the app! I also feel that they have very fair pricing and don’t pressure you into anything that you don’t need for your pet!

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Kimberly DeSerres

reviww-icona month ago

We moved to NH in January, 2025 and needed a new vet for our pets. Snoopy, my late brothers dog, had a problem with his tail and they fixed him right up with medication and advice on how to care for this problem. Brought him in this past week and everything looks great! Wonderful staff and very friendly! Distance is just around the corner from me.

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Terry Orne Day

reviww-icona month ago

Very experienced. Was calm aalnd gentle with my dog. Medicine given made dog act like he used to before diagnosis. Will definitely return

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Kelley D

reviww-icona year ago

We love Allenstown Animal Hospital, they are kind, caring, compassionate and knowledgeable. Our Shih Tzu has had multiple health problems since puppyhood, and we have always felt comfortable with Dr. O’Connell treating him. If she feels like there is a problem that needs a specialist, she is honest and will refer to someone appropriate. There is now a new vet working at Allenstown, Dr. Casemier. He was incredibly kind with our pup, seemed knowledgeable and took his time to really explain everything during our visit. We feel comfortable with both doctors treating our little guy! Their pricing is very reasonable, the office is exceptionally clean and the office staff is always nice. Highly recommend!

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Amanda Presswood

reviww-icona week ago

Very caring staff! Highly recommend. The prices are also really reasonable.

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Frequently Asked Questions

There is no question too big or too small for our veterinary team.

A diagnosis can only be made after a thorough physical exam by a veterinarian. Allenstown Animal Hospital cannot legally or safely prescribe medication without first examining your pet.
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