You already juggle work, family, traffic, and everything else Houston life brings. Finding time and budget for preventive vet care for your dog or cat can feel like one more challenge, even when you know how important it is.
Maybe your pet is overdue for vaccines, you are not sure if they are protected against heartworms, or you have been putting off a visit because of exam fees and appointment wait times. You are not alone. Many Houston-area pet parents are looking for a simpler, more affordable way to keep their pets healthy.
CityVAX is here to help. Our walk-in pop-up clinics bring low-cost vaccinations, parasite prevention, heartworm testing, and microchipping directly into neighborhoods across the greater Houston area. No appointments, no exam fees for services we provide, and convenient locations at places you already know, like PetSuites, YMCA branches, and other community partners.
Heartworm disease is a serious, potentially fatal condition spread by mosquitoes. In the Houston area, our warm, humid climate means mosquitoes are active much of the year. Even mostly indoor dogs can be at risk if a single infected mosquito gets inside.
Heartworms live in the heart and lungs and can cause coughing, fatigue, weight loss, and eventually heart failure if not treated. Treatment is lengthy, expensive, and hard on your pet’s body. That is why prevention and regular testing are so important.
Annual heartworm testing helps you catch infection early and confirms it is safe to keep giving preventive medication. Skipping tests can leave your pet unprotected or make it risky to restart prevention after a gap.
At CityVAX pop-up clinics, heartworm testing for dogs is quick and straightforward. A typical visit for heartworm testing includes:
If your dog tests negative, our team can help you choose appropriate heartworm prevention products so you can keep them protected going forward. If your dog tests positive, we will discuss what that means and refer you to a full-service veterinary clinic for further evaluation and treatment options.
Most dogs should have a heartworm test once a year, even if they are on prevention all year long. Testing is especially important if:
Our team can help you understand when your dog’s last test was and whether it is time to repeat it. If you have any records from a previous clinic or shelter, bring them along so we can give you the best recommendations.
Does the test hurt? The test requires only a small blood sample. Most dogs tolerate it very well, and it is over in just a few moments.
Can my puppy be tested? Puppies typically start heartworm prevention early and are tested once they are old enough for the results to be accurate. Our team can advise you on timing and prevention options for young dogs.
Do you also offer other preventive services? Yes. In addition to heartworm testing, CityVAX provides low-cost pet vaccinations for dogs and cats, flea, tick, and parasite prevention, and microchipping. For medical issues outside preventive care, we refer pets to full-service veterinary clinics.
CityVAX clinics are designed for busy pet parents who want quality preventive care without the barriers that sometimes come with traditional vet visits. All of our events are walk-in, so you can come when it fits your schedule during the posted hours. There are no appointment deposits or long waits for an opening.
Because we focus on preventive services such as vaccinations, parasite control, heartworm testing, and microchipping, visits are typically faster and more efficient. You get targeted care that helps keep your pet healthy, and if we identify a concern outside our scope, we will direct you to a full-service veterinary practice for follow-up.
Our pop-up clinics are hosted at familiar community locations across Pearland, League City, and the greater Houston area. Many pets feel more relaxed walking into a pet resort, community center, or neighborhood venue instead of a traditional clinic setting. It is convenient for you, and often less stressful for them.
CityVAX is bringing low-cost heartworm testing and other preventive services to Houston-area neighborhoods this week. All clinics below are walk-in. No appointment needed.
Pearland Location – Friday, July 24, 2026
Venue: PetSuites-Pearland
Address: 3205 Kirby Dr., Pearland, TX 77584
Time: 12:00 PM – 5:00 PM
No appointment needed – walk-ins welcome.
Pearland Location – Saturday, July 25, 2026
Venue: PetSuites-Pearland
Address: 3205 Kirby Dr., Pearland, TX 77584
Time: 9:00 AM – 4:00 PM
No appointment needed – walk-ins welcome.
Pearland Location – Sunday, July 26, 2026
Venue: PetSuites-Pearland
Address: 3205 Kirby Dr., Pearland, TX 77584
Time: 12:00 PM – 4:00 PM
No appointment needed – walk-ins welcome.
League City Location – Sunday, July 26, 2026
Venue: Perry Family YMCA
Address: 1700 League City Pkwy, League City, TX 77573
Time: 12:00 PM – 4:00 PM
No appointment needed – walk-ins welcome.
Each pop-up clinic runs only during the hours listed for that location. Services are provided on a first-come, first-served basis, so arriving earlier in the clinic window can help you get in and out more quickly.
To see additional dates, cities, and partner venues across the Houston area, visit the full CityVAX schedule and locations page.
Preparing for a CityVAX pop-up visit is simple. Bring:
If you are unsure whether your pet is due for vaccines, parasite prevention, or heartworm testing, our team can review your records on site and help you choose the right preventive care that day. For pets with ongoing medical conditions or concerns that require more in-depth evaluation, we will recommend follow-up with a full-service veterinarian.
Heartworm disease, fleas, ticks, and preventable infections are common in the Houston area, but they do not have to put your pet at risk. By combining regular heartworm testing with vaccines, parasite control, and microchipping, you build a strong preventive foundation for your dog or cat.
CityVAX is committed to making that foundation accessible. Our low-cost, walk-in pop-up clinics mean you can fit preventive care into your life without rearranging your week. To confirm current offerings, hours, or partner venues, call (832) 281-0559 or visit our guide to how our low-cost clinics operate.
Check the latest CityVAX pop-up schedule, pick the Houston-area location that works best for you, and stop by during clinic hours. Walk in, get your pet’s heartworm test and other preventive care, and head home with one less worry on your mind.
