12 places offer this. 11 list prices; for the rest, call and ask before you go.
Nonprofit clinic · 910 South Wayside Dr #100, Houston
Low-cost shots, spay or neuter, and other preventive care Tuesday to Saturday, 10am to 6pm. Walk in or book online. Cat spay/neuter is $89, dog is $125. They don't treat sick or injured pets.
Nonprofit clinic · 8533 Gulf Fwy, Houston
Low-cost shots, spay or neuter, and other preventive care Monday and Thursday through Saturday, 10am to 6pm. Walk in or book online. Cat spay/neuter is $89, dog is $125.
Nonprofit clinic · 13830 NW Fwy, Houston
Low-cost shots, spay or neuter, and other preventive care inside the Northwest Freeway PetSmart, Wednesday through Saturday, 10am to 6pm. Walk in or book online.
County shelter · 612 Canino Rd, Houston
Low-cost shots and basic care by appointment, Monday to Friday, 8am to 5pm. Anyone can come, not just Harris County residents. Cash or card only, no bills over $20.
County shelter · 3200 Carr St, Houston
The city shelter's low-cost preventive care clinic. Vaccines, microchips, and heartworm testing by appointment only; no walk-ins and no sick-pet or spay/neuter care here.
Nonprofit clinic · 1001 Dairy Ashford Road, Houston
Low-cost spay/neuter and wellness care 6 days a week. Scheduled wellness visits are $40, walk-in is $55. Anyone can use it; cash gets a 3% discount, cards add 3%.
Nonprofit clinic · 19333 US Highway 59 North, #230, Humble
Low-cost spay/neuter and wellness care 6 days a week. Scheduled wellness visits are $40, walk-in is $55. Anyone can use it; cash gets a 3% discount, cards add 3%.
Nonprofit clinic · 28439 Tomball Parkway, Tomball
Low-cost spay/neuter and wellness care 6 days a week. Scheduled wellness visits are $40, walk-in is $55. Anyone can use it; cash gets a 3% discount, cards add 3%.
Nonprofit clinic · 586 Sawdust Road, Spring
Low-cost spay/neuter and wellness care 6 days a week, near The Woodlands. Scheduled wellness visits are $40, walk-in is $55. Anyone can use it.
Nonprofit clinic · 3939 Allen Road, Pearland
Low-cost wellness care for dogs and cats, Monday to Friday, 8am to 4pm. A vet visit is $50. Walk in Mondays at 8am for $75 urgent care, or book other visits online.
Nonprofit clinic · 2800 Antoine Dr, Houston
A weekly low-cost shots clinic, Wednesdays 10am to 1pm, by appointment. Offers core vaccines, microchips, and heartworm testing for dogs and cats.
Spay / neuter clinic · 1801 Durham Drive, Suite 1A, Houston
Low-cost spay and neuter surgery for dogs and cats, Monday through Friday by appointment. A few walk-in spots open each morning for feral and community cats. Cat spay is $110, cat neuter $95; dog prices rise with weight up to $375.