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Clocktower Animal Hospital

4.7

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Location details

2440 McNair Farms Dr, Ste 22, Herndon, VA, 20171, United States

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WeekdayScheduleStatus
Mon7:00 a.m. to 8:00 p.m.
Tue7:00 a.m. to 8:00 p.m.
Wed7:00 a.m. to 8:00 p.m.
Thu7:00 a.m. to 8:00 p.m.
Fri7:00 a.m. to 8:00 p.m.
Sat8:00 a.m. to 6:00 p.m.
Sun10:00 a.m. to 4:00 p.m.
4.71,113 reviews
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Gene R.'s profile image
Gene R. 
rating
9 months ago

I visited Clocktower Animal Hospital several times after getting my puppy. I had no problem with the quality of the service. However, I was not able to resolve a billing dispute with their hospital manager Mackenzie Carson. I would not recommend taking your pet here if you value your money. I received a biannual exam in February 2025. Then I was charged for another "biannual exam" in March 2025 while getting my puppy vaccinated. I did not request or receive an exam during the second visit. When I spoke in person with the ho... read more

Nancy N.'s profile image
Nancy N. 
rating
a year ago

Beware: please save your animals and do not use Clocktower for sick visits!! We brought our new, 11-week-old Bernedoodle for a well-visit on the evening of Dec 5. Our puppy received a clean bill of health and a distemper vaccine from Dr. Kendall. Dr. Kendall also took a stool sample and did an ear check. Knowing that our puppy may suffer from vaccine side effects, we spent the entire next day monitoring him. The next afternoon, on Dec 6, our puppy started to vomit and had diarrhea, so we called Clocktower at 2pm. My sister, ... read more

Kriss S.'s profile image
Kriss S. 
rating
a year ago

They didn't know why my dog was there again (monthly allergy shot), then they asked me if I had considered a biopsy when his biopsy results were right in front of them. Had called them ahead of time to be sure that they had reviewed his file this time because he was going through a difficult period (thus the skin biopsy) and they did so poorly the first visit. Disturbing and horrid. Wouldn't recommend to my worst enemy. 

C H.'s profile image
C H. 
rating
2 years ago

If I could rate Clocktower a zero I would. Worst customer service ever! One time my dog was supposed to have her teeth cleaned. They kept her in a cage for ten hours! Never cleaned her teeth! They had the nerve to ask me to bring my dog back the next day. Further the vet yelled at me! They had the nerve to charge me! In attempts to call to speak with management about the matter Jennifer no last name was not helpful reluctant to provide a manager's full name, refused to provide her last name. Then, Jennifer no last name hung ... read more

John G.'s profile image
John G. 
rating
2 years ago

I have been using them for 20 years. Originally run by three veteran vets who were amazing. Now, the place has been purchased by a corporation and it is run purely for profit. You will have a price on your head the moment you contact them. The Vets are all newly graduated. They look like teenagers. They have not been completely honest with me when upselling my products, I paid over $80 for a cleaner for my dog's ears that I could have gotten on Amazon for $20. When you call you will be greeted with an automated atten... read more

Craig-Wendalynn N.'s profile image
Craig-Wendalynn N. 
rating
2 years ago

First I'll say that Dr. Schneider is great and in general this place gives good care however I did have an issue with Dr. Mazer's "bedside manner" so much so that after many months I'm still upset and have decided to leave this review. My dog recently passed away after a long fight with a heart condition but many months ago Dr. Mazer had suggested either getting tests done that would have costed thousands upon thousands of dollars and may have done nothing more than confirm the current diagnosis or we could let him live out ... read more

Faiza S.'s profile image
Faiza S. 
rating
2 years ago

I would give ZERO if i could. DO NOT TAKE YOUR CATS HERE!!!!! I was recommended this place by someone i got my cats from. LORD LORD LORDDD these people are horrible. almost $900 EVERY FREAKING VISIT ?????? My kitty girl broke her leg, I take her to this vet after i take her to ER for an "after ER" check up. These people are horrible. They had me coming back every week for over a month and a half because her leg "wasn't healed" Big fcking lie! I was told by the ER it takes less than a month for kittens to heal bc they're grow... read more

Business response:

Faiza, we are saddened to hear that you did not have a good experience with us. Please note that we take your feedback very seriously and have shared your comments internally. Our number one goal is to ensure that all our pets receive the appropriate care that they need, however, treatment options and visitations are a decision that we ultimately leave to the owners. We believe that we have been transparent with the treatment options for your pet as well as been clear of the necessary treatment procedures for your pet's prop... read more

R V.'s profile image
R V. 
rating
2 years ago

The staff is nice and I would rate my experience with the doctor as neutral (doctors aren't the best, doctors aren't the worse either). What ruins the experience are the prices and billing practices. No way to sugar coat this - Prices are expensive to the extreme and the selling is non-stop. Even during a routine office visit, expect to be sold on some ointment, cleaner, meds, or testing. Everything is expensive from top to bottom. Buy what you can from Chewy, PetSmart, Amazon because Clocktower's prices are typically do... read more

Angela M.'s profile image
Angela M. 
rating
3 years ago

After not seeing our dog who has been a patient at this vet for 7 years, they now are taking multiple days to send their records to our new vet office, have been rude on the phone and have not responded to our emails. While we were patients at this clinic, our dog was overdosed by one of the doctors and we were kind enough to understand it was an honest mistake, even though we ended up at the emergency hospital. We did this because we had a relationship with this clinic, we thought. The last few months have proven to be nega... read more

Frequently asked questions about Clocktower Animal Hospital

How is Clocktower Animal Hospital rated?

Clocktower Animal Hospital has a 4.7 star rating with 1,113 reviews. 

When is Clocktower Animal Hospital open?

Clocktower Animal Hospital is closed now. It will open at 7:00 a.m.