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    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.

    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

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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

You can count on CASE Hospital to be ready 24/7 on Thursdays through to Tuesdays 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 in Crystal Lake

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, and  integrative medicine 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

  • We were very concerned about our 17-year-old chihuahua. They got us right in to see a doctor. They listened to our concerns and addressed what they could which was very comforting. Overall, polite, professional and practical. Thank you!
    - Bryan

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.

Thyroid Hormone Testing in Dogs

Thyroid Hormone Testing in Dogs

Health conditions can have an effect on a number of areas of your pet's health, some can even affect hormone production which regulates bodily functions. Here, our Crystal Lake vets talk about the purpose of the thyroid, why it may be necessary to test for low thyroid in dogs, and the different types of tests used.

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Understanding Blood Tests for Dogs

Understanding Blood Tests for Dogs

If your dog experiences a health condition requiring additional specialist care, they will likely also need further diagnostics. In this post, our Crystal Lake vet specialists discuss the benefits of blood tests performed in our veterinary diagnostics laboratory and what we can learn from them.

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ECG for Pets: When it's needed?

ECG for Pets: When it's needed?

Sometimes, your vet will need to monitor the function of your pet's heart. This can be for a number of reasons. In this post, our Crystal Lake vets will discuss ECGs for dogs and cats, what they show about your pet and when they may be needed.

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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.

Emergency Care

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

Specialty department hours vary week by week.

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1095 Pingree Rd Ste 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