One of the best things you can do for your pet is to keep him or her healthy. And one of the easiest and least expensive ways to do that is by bringing in your pet for regular exams and vaccinations. Dogs and cats (and other pets) age far faster than people, so significant changes in your pet’s health can happen in a short time.
Our veterinarians are experienced in providing specialized care and treatment for exotic companion animals, including ferrets, gerbils, guinea pigs, hamsters and rabbits. We understand their unique health needs and can provide diagnostic, therapeutic, and surgical services, as well as counseling on nutrition, behavior, and general care.
If your adult dog or cat is healthy, you may have chosen a pet food based simply on whether or not your pet will eat it. Cost may also play a factor in your decision. However, not all pet foods are equal. And feeding the right amount is not as simple as following the directions on the package (they’re just guidelines).
We are a group of two Companion Animal Hospitals accredited by the College of Veterinarians of Ontario, the licensing body for Veterinarians and veterinary hospitals in the province. Established by Dr. Sandi Rosely, Avonlea Animal Hospital has been serving the Mississauga Meadowvale community since July 2000. In 2007, Hollybank Animal Hospital opened to service the growing neighbourhoods in south Milton.
Choosing your pet's doctor and health care team can be a very difficult process. We can assure you that all of your pet's health care needs will be met with our hospital staff and services. Our pet care health services include wellness care, vaccinations, medical care, surgery, dentistry, x-rays, and behaviour, obedience and dietary management.
Behaviour problems are very common amongst pets. Some common conditions include separation anxiety, destruction of the home, fear and territorial aggression and house soiling. Many of the problems have a congenital and an environmental component. Our doctors are trained to help you determine the cause of the behavior problem and then advise you about how to […]
DENTAL DISEASE Almost every pet will experience some degree of dental disease in their lifetime! Plaque bacteria thrive in your pet’s mouth (ever smelled that ‘doggy’ or ‘kitty’ breath?). At first, they just live on the surfaces of the teeth and gums, but if not removed regularly by brushing or wiping, they will infect the […]
Annual Health Assessments Bringing your pet in for their annual visit is still one of the most important things you can do for his or her preventative healthcare. You can bring any questions or concerns about your pet for the veterinarian to answer. The veterinarian will ask you several questions to find out how your […]
Sometimes your pet’s behaviour/actions can tell us they are not feeling well, but other times your pet can hide disease really well. This is why annual examinations and bloodwork is so helpful. Many medical conditions can be found and treated easily with regular veterinary visits and bloodwork. At Avonlea Animal hospital we believe that your […]
MICROCHIPPING Despite your best efforts, accidents can happen and your pet could go missing. Thousands of animals end up in shelters every year. Unfortunately, many of these animals are never reunited with their families because they can’t be identified. A collar tag is a great way to identify your pet; however, if this were to […]
Just like in humans, nutrition is an important cornerstone for the health of your pet. And just like in humans, nutritional requirements change over time, depending on age, lifestyle and medical conditions. For example, cats and dogs with kidney disease require specialized diets, and small breed dogs are often prone to urinary and dental disease […]
Our veterinarians are experienced in providing specialized care and treatment for exotic companion animals, including ferrets, gerbils, guinea pigs, hamsters and rabbits. We understand their unique health needs and can provide diagnostic, therapeutic, and surgical services, as well as counselling on nutrition, behavior, and general care.
Our doctors are available for both routine and non-routine surgeries. Prior to all surgical procedures, the patient will have a physical examination and blood work to assess for any concerns that need to be addressed prior to surgery or at the time of surgery. Presurgical blood testing allows the doctors to assess and ensure your […]
How Ultrasound Works Ultrasonography involves passing a probe over your pet’s skin after the hair has been shaved away, while it emits harmless ultrasound waves (which are like sound waves, but at a higher frequency that we cannot hear). As the sound waves bounce off tissues and structures inside your pet’s body, they are detected […]
When the immune system is exposed to an infectious agent such as a virus or bacteria, it sets to work killing and eliminating it. One of the ways it does this is by making proteins called antibodies that specifically recognize that virus or bacteria and attach to it, flagging it for white blood cells to […]
One of the best things you can do for your pet is to keep him or her healthy. And one of the easiest and least expensive ways to do that is by bringing in your pet for regular exams and vaccinations. Dogs and cats (and other pets) age far faster than people, so significant changes […]
At some point your veterinarian may recommend that your pet have an x-ray (technically known as a radiograph). This is a diagnostic tool that is very helpful to literally see inside your pet’s body. Examples of things that are commonly diagnosed with radiology include: broken bones, intestinal blockages or foreign objects, heart enlargement, lung conditions. […]
I have used other vet services in the past but since moving to Milton I go to Hollybank for all of my dogs needs. The Doctors and staff there are very compassionate and caring. They treat my puppy as if it were there own. From the staff who greet you at the front door to the Medical staff I don’t think I could ask for better. You always feel welcome there. I don’t think I could ever take my puppy anywhere else even if I move out of the area i’m sure I would make the commute. Keep up the great work and thanks for taking care of my new puppy and also the one I just lost after having her for so many years
Denny
Very caring, they take good care of our pets.
Stephen
Been going here exclusively since we rescued our dog almost 5 years ago. The staff and doctors have become an extended family to our four legged friend. Highly recommend to anyone looking for a team that goes the extra mile.
Todd
I have always felt very comfortable with the staff at Hollybank and their sister vet. I actually followed Dr. Sandi from one place to another because I didn’t want to change doctors. I was in Mississauga before and was ecstatic that they opened up another practice in Milton. They treat my dog very well, their assessments were very thorough and they are willing to answer any questions I have. They take into account my opinions which makes me feel better because I am able to be involved in my dog’s care.
Amilia
I took our new pup, Chewy, to this vet few days ago to introduce him and do the initial health check. The staff were very kind and friendly. The doctor was very thorough in her examination and spent way more than enough time to explain the pup on-boarding process. While I’ve read about how scary the first visit to the vet could be, Chewy was very comfortable and spent his time playing around. He even left his mark at the examination room floor 🙂 One of the nice welcoming gestures I’ve noticed was the writing on the white board when we arrived. Thank you and I highly recommend this vet.
Ibrahim
Sandy (Dr. Roselli) took care of my dog for 16 years, and we couldn’t have asked for a better vet. She really, truly cared about Sable, and was always available when we needed her. The entire staff at Avonlea are exceptional. Sandy – we won’t forget all the things you did for our family and Sable. It meant the world to us.
KT
friendly and knowledgeable staff & doctor. clean and inviting office space. waiting area is not too large, which minimizes the possibilities of different animals interacting.. My cat likes that he doesn’t have to contend with over zealous dogs! appointments are usually right on time. There are two examination rooms; one of which is reserved for you and your pet at your appointment time. So there will be little to no waiting in the front lobby area, as long as you arrive on time for your appointment. The vet will make all expenses known beforehand. Very upfront with all of the costs associated with the testing and products; no sticker shock after-the-fact like at my last vet’s clinic. staff take the time to make a follow-up phone call to check on things. Even the doctor herself called me, just to check up my kitty!
Nick
Changing vets and going to Hollybank Animal Hospital was the best decision ever and has absolutely made a world of difference to us and our beloved cats. We had no idea that vet care could be this great and only wish we’d switched years ago. The outstanding care we’ve received from the veterinarians and staff at Hollybank is absolutely top notch and we couldn’t be happier or more grateful for all they’ve done and continue to do for our cats. THANK YOU!!!
Anita
Charlotte loves the treats and attention she receives. All of the staff are kind and knowledgeable. Charlotte loves her vets and staff. Overall I am very pleased with her care and I am happy with the clinic!
Cathy
Emmie has been going here since she was around 10 weeks old; she’s now 5. Staff are very nice, helpful and knowledgeable.
Larissa
Thank you so much for caring about Cooper. You all are doing a great job! I really appreciate the follow up phone call. Cooper is doing great! THANKS
Jen and Mike
Great place with wonderful staff! :o) They took the time to follow up with us to make sure our dog Gibson was doing well!
Emily
Amazing clinic! They truly care about their patients and offer the highest level of medical expertise for our dog.
Natasha
The doctors and staff are fantastic! Went for my first visit with Pedro and they were all great. Even when I call for advice. Then today after Pedro had his little man spot taken away and teeth pulled, still amazing before and after the procedures. After all my what I assume must be annoying phone calls checking up on my Pedro they were still so friendly and courteous. Even sent a picture of Pedro recovering! Exceptional skills dealing with Pedro and great communication skills. Not easy to find these days. Very impressed. Love this team!
Michelle
I am so happy with the care I’ve received for all my pets! Everyone is so pleasant from the front desk up to the doctors. They have handled care from puppyhood through spaying and emergencies with compassion and skill. We have also lost two beloved dogs and one Guinea pig to old age- the empathy and compassion helped us in sad times. I highly recommend Drs Rosely and Johnson.
Ann
Thanks to this amazing clinic a wonderful vet and such caring staff. Your compassion and kindness helped us to make the right decision for Bruno Again thank you so much.
Ida
Great clinic and very friendly staff! It took a bunch of calling around to find someone who would look at our ferret but I’m happy we found this one. Dr. Johnson was amazing!
Shaydey
Dr. Rosely and staff are amazing. Professional, friendly and empathetic. I just picked up my puppy and was surprised to find that the bill for her surgery had been discounted. I won’t take my puppies anywhere else.
Dan
Great clinic and very friendly staff. Just wanted to say a big thank you for all your love and support with my kitty Bruno, who sadly I had to say goodbye to on Monday. You can see your love for animals in your work. Thank you.
Caitlin
March 22, 2023
The Oakville & Milton Humane Society’s Pet Photo Contest is OPEN. Enter your pet into the contest for your feathered, furry or scaly best friend to have a chance to win a coveted spot as the cover or model of the month in the 2024 wall calendar. omhs.ca/contest2024 Enter now to take advantage of the […]
April 13, 2020
We are happy to announce that Dr. Rosely is healthy and symptom-free and that none of the other members of our team have had flu-like symptoms. Earlier this month, Dr. Rosely experienced symptoms consistent with COVID-19 and, as a precaution, she decided to self-isolate for 14 days. We also asked all the staff who had […]
March 31, 2020
To Our Valued Clients, Our top priority is to provide exceptional care to our patients while safeguarding our staff and our community. At this time, we are temporarily closing our Milton location, Hollybank Animal Hospital, and we will be modifying our business hours at our Mississauga location, Avonlea Animal Hospital, where we remain available to […]
March 23, 2020
To Our Valued Clients, Our top priority is to provide exceptional care to our patients while safeguarding our staff and our community. We continue to maintain our regular business hours and we are available to see you and your pets for essential veterinary health care services. We have been monitoring the COVID-19 situation closely and […]
October 28, 2019
Please see the bios below written by their foster mom! Sheldon When Sheldon first arrived he was tired from the travels so after he ate and figured out his new space, we cuddled him while he was on his back signing the soft kitty song from Big Bang Theory and he was out for the […]
June 14, 2019
Little Kickstand was brought to Hollybank as a stray by a good Samaritan after witnessing her being hit by a car. She is a lucky little girl and only sustained trauma to her front right leg. All of us at Hollybank will continue to fawn and fuss over her during her recovery at the clinic. […]
February 19, 2019
Welcome Dr. Thompson to the Avonlea and Hollybank family! Dr. Adam Thompson graduated from the Ontario Veterinary College in 2011, and then worked at clinics in Sudbury and Durham Region before joining Dr. Rosely and the team in 2018. Since graduating 7 years ago he has become very proficient at working with patients and their […]
February 17, 2019
Many pet owners think that it is normal for pets to have bad breath. However, breath odour can be a sign that plaque (bacteria), tartar and possibly painful periodontal disease may be present. Just like people, dogs and cats need to have their teeth brushed to remove the invisible layer of plaque. In addition to […]
December 12, 2018
Many of you and your furried friends have had the pleasure of working with Dr. Johnson over the past 8 years at Avonlea and Hollybank. She was well known for having an endless supply of hugs and pats for those in need. Her passion for veterinary medicine and her dedication to the patient’s wellbeing has […]
May 2, 2018
Wellness Screening – What is it and why is it important? Spring is on the way – at least I hope so after the snowy and rainy weather we have endured in the early weeks of April! This means that we need to start thinking about yearly wellness and parasite screening for our pets. What […]
March 8, 2018
As temperatures start to warm up and the snow begins to finally melt, it’s time to start thinking about a danger lurking in our own neighbourhoods – TICKS! Ticks are small insect-like animals, usually found on plants outdoors, which bite and attach to the skin, and can transmit serious diseases to you and your pet. […]
March 5, 2018
We would like to thank everyone that shared in the joy of giving! We raised over $700 through the sale of our Cat and Dog gift baskets. The proceeds from the gift basket were matched by the clinic and donated to OVC Pet Trust. OVC Pet Trust honours the relationship between pets, their people and […]
December 7, 2017
We are looking forward to spending another year with you and your furry best friend! With 2018 around the corner everyone is talking about their New Year’s resolution. The top three resolutions for our team are: 1. Get fit and stay fit, 2. Smile and cuddle more and finally 3. Have more good hair days. […]
September 20, 2017
Cats and cars Who knew that banging on your car hood might save a life? When the weather turns cold, outdoor cats seek warm, quiet, secluded places to rest. What better place, then under the hood of a recently driven car that’s nice and toasty warm. The injuries that can occur include burns, lacerations, degloving […]
July 8, 2017
Piper No one ever wants to hear that their beloved young pet has a chronic disease that will affect their length and quality of life. Unfortunately, congenital and early onset disease conditions do occur in young animals. Piper is a reminder to all of us about the importance of early disease detection and how it […]
May 3, 2017
Oliver, a handsome brown tabby, was friendly, boisterous, and good-natured – he provided us with three years of affection and happiness. He loved people and was a great ambassador of the clinic. Oliver, sitting on the front desk greeting patients, and getting under our feet when running through the clinic from whatever invisible “thing” […]
March 7, 2017
How much do you know about ticks? Do you know where you’re most likely to find them? At what temperature they start looking for a blood meal? Or when you should start your pet on tick control? Find out how to outsmart ticks during #NationalTickAwarenessMonth, which runs until the end of March. Call us today! […]
January 17, 2017
Feline Urination Issues The seasons are changing, and I know winter is in full swing when I start to see the appointments for cats urinating ‘inappropriately’ as we call it in the veterinary industry. (Of course, at home, it generally goes by the name ‘The !@^%#$^$ cat is peeing everywhere!!’ ) Though it can occur […]
December 13, 2016
Help support our local food bank! Avonlea Animal Hospital and Hollybank Animal Hospital are helping to raise money for the Eden Food for Change, Mississauga and the Salvation Army/Khi Community Church food bank, Milton. While many people, stores and organizations donate food, it is financial donations that help ensure that they can provide support to […]
December 8, 2016
The holiday season is coming up quickly and it’s time to start preparing for the festivities. This time of year brings joy and excitement spent with family – including our pets! Below are some tips for you to keep your furry family members happy and healthy during this holiday season. Holiday Decor Safety Lights and […]
November 18, 2016
What Does an Overweight Pet Mean? The rate of overweight and obese pets – about 1 in 4 dogs and 1 in 3 cats – has reached epidemic levels in the USA and Canada. The clinical definition of obesity is over 20% body fat. This condition is linked to numerous other diseases, including arthritis, diabetes, […]
October 12, 2016
Halloween Tips: Pet Safety Tips For This Halloween! Halloween is just around the corner and although it is a very fun and festive time of the year, it is also one of the spookiest nights of the year! It is important to keep safety in mind when it comes to your dog or cat. Here […]
October 1, 2016
Why do animals itch, bite and scratch? This seems like a pretty straight forward question but in fact finding the answer can be very complicated, time consuming and frustrating. Atopic dermatitis is a very common form of allergy and has been defined as a genetically predisposed inflammatory and pruritic allergic skin disease with characteristic clinical […]
July 8, 2016
With heat warnings in our area, a warning for pets owners to take care of your animals comes as well. In the heat, that warning means even more for certain breeds of cats and dogs. Short-nosed dogs like Pugs, Pekinese, Bulldog, Shih Tzu, Boston Terrier, Boxer, Cavalier King Charles Spaniel and French bulldogs can overheat more […]
May 5, 2016
National Pet Week is a week dedicated to celebrating the pets that enrich our lives so greatly each day. For many people, our pets are a central part of our lives, and add so much vivacity and affection to our lives. Our pets are always there for us, and they generally don’t ask for much […]
April 18, 2016
Shed the winter boots and don the running shoes and hiking gear. It is time to get outside and get active. I for one am so happy to finally be able to see the grass and enjoy those leisurely walks in the woods with Dunkun and Alena. Exercise throughout the winter has ensured that Dunkun […]
April 6, 2016
Hurray, winter is over – almost! Good-bye coats, boots and shovels and hello camping, cottaging and barbecues. While many cottages and campgrounds allow pets on the campsite, they are very strict about leash use and many campgrounds do not have swim areas for dogs. For these reasons many of us will board our dog or […]
March 29, 2016
Welcome to our new website and blog! After a few of months of planning, we are delighted to announce the launch of our new website. We freshened up the website, giving it a clean, modern look that will help you find the information you need quickly and easily. Usability You’ll find it easier to navigate […]
February 2, 2016
Happy New Year to everyone from Dr. Sandi Rosely! During the past few months resolutions for 2016 have been pondered and for Avonlea and Hollybank a revised website has won out. Our new website will be updated regularly with information provided by our staff. The posting will help you to get to know us a […]
February 2, 2016
In short, it is a condition in which dogs suffer from anxiety when left alone. One out of every six dogs may suffer from canine separation anxiety. It can be seen in young dogs who do not adapt to being separated from their owners. Dogs who suffer from other anxiety disorders such as noise phobias/thunderstorm […]
February 2, 2016
Summer and its hot weather have arrived with a vengeance. For many of us, this means heading up to the cottage, hanging out at a pool or going for lazy walks along the many shaded waterways. The cool water is a welcome relief from the heat, but we must remember that water safety is a […]
Comprehensive veterinary hospital providing wellness, vaccinations, medical care, surgery, dentistry,
Lee, it’s not nice to stick your tongue out at the doctor 😉 ... See MoreSee Less
Simba came in for a mani pedi and then a photo shoot. Simba, you’re such a sweet little boy ... See MoreSee Less
I loved our Guinea pigs. Simba is one handsome pig 🥰
Hugo was such a good boy for his allergy injection today. Thanks to some yummy treats we were able to get a picture of this cute little guy! ... See MoreSee Less
Happy 14th birthday to such a special boy!!! I am sure you enjoyed being spoiled at your birthday 🎉 🥳 ... See MoreSee Less
Yup, we are gorgeous 😍
( Nyla & Coco )
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