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  • Here For You Around The Clock

    24/7 Emergency Care in Crystal Lake

    At Companion Animal Specialty and Emergency Hospital, we have veterinarians specially trained to provide compassionate and dedicated emergency medical care and triage, 24 hours, 7 days a week.

    Emergency Services

  • Advanced Veterinary Care in Crystal Lake

    Meeting Your Pet's Specialty Healthcare Needs

    Our team at CASE Hospital is here to meet your pet's needs. Our board-certified specialists and highly-trained veterinarians offer a range of specialized care.

    Specialty Services

Diagnostics & Lab

Our in-house veterinary lab allows us to complete advanced diagnostic testing accurately and efficiently so your pet's care can begin as soon as possible. 

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ER Services

We're here for you around the clock. You can count on CASE Hospital to be ready 24/7/365 to manage your pet's emergency needs.  

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Veterinary Care You Can Count On

Welcome to Companion Animal Specialty and Emergency Hospital

We are a specialty and emergency hospital offering comprehensive specialist and critical care services to cats and dogs in Crystal Lake and the surrounding areas.

We offer a range of specialty services including internal medicine, integrative medicine, and veterinary surgery to help pets suffering from complex conditions, injuries, or diseases.

We care for Crystal Lake’s companion animals and have developed a reputation over the years for quality, professional care with a compassionate touch.

Our team of experienced Crystal Lake vets are proud to live up to the standards of veterinary excellence laid out by the American Animal Hospital Association!


About Our Hospital

Meet Our Veterinary Team

The CASE Hospital team is comprised of specialists and experienced emergency veterinarians. We work together with our in-house veterinary technicians and support staff to provide the best care for your pet every time they visit. 

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Your Trusted Hospital for Specialty Care

Specialty Services

Our specialty and referral team includes board-certified and highly trained veterinarians and support staff in emergency/critical care, surgery, internal medicine, and integrative medicine, who use state-of-the-art diagnostic modalities and treatment strategies to help heal your pet.

  • They saved my dog's life. They were compassionate and thorough with their explanation of the procedure. My dog had eaten something that obstructed her intestines and needed emergency surgery to extract the foreign object. They took really good care of her and she was back to normal in a couple of weeks.
    - Ryan

Stay Informed

Tips & Advice From Our Team

Whether you are looking for advice on emergency conditions or information on common pet illnesses, our informative blog features valuable tips and advice from our Crystal Lake vets that will help you to keep your pets healthy and happy.

Common Cat Illnesses & Their Symptoms

Common Cat Illnesses & Their Symptoms

Cat's are incredibly good at hiding when they aren't feeling well. Here our Crystal Lake vets discuss some of the most common illnesses that a cat might experience, their symptoms and what to do if your cat experiences any of the following conditions. 

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Plants That Are Toxic to Cats

Plants That Are Toxic to Cats

We may not realize it but many of our household plants are actually toxic to cats. If your cat decides to eat one of these toxic plants it will be helpful to know the type of plant consumed in order to inform your Crystal Lake vet.

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Kidney Failure in Dogs - Signs, Symptoms & Causes

Kidney Failure in Dogs - Signs, Symptoms & Causes

While relatively uncommon, kidney or renal failure could affect your dog. Our vets in Crystal Lake discuss the signs and symptoms of kidney failure in dogs, as well as what the most common causes and treatments are.

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Expert care in McHenry County

Address & Hours

Companion Animal Specialty and Emergency Hospital proudly serves patients in Crystal Lake and beyond.

24/7 Emergency Care

We see emergency and critical care cases 24 hours a day, 7 days a week, 365 days a year.

Specialty department hours vary week by week.

Contact Us


1095 Pingree Rd 120, Crystal Lake, IL 60014 US

Phone Number

(815) 479-9119

New Patients Welcome

Companion Animal Specialty and Emergency Hospital is accepting new patients! Our specialists and experienced emergency veterinarians are passionate about restoring good health to animal companions in Crystal Lake.

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(815) 479-9119 Contact