19 places offer this. 15 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 · 3100 W Fuqua St, Houston
Walk in Monday to Saturday, 9am to 4pm, for shots. Exams and surgery need an appointment. A vet exam is $70 and an office visit is $35; vaccines and microchips are priced separately.
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.
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 · 4247 FM 1764 #400, Santa Fe
Low-cost wellness care, dental, and spay/neuter in Santa Fe, weekdays 7am to 3pm, by appointment. A basic exam is $35; dental cleaning is $300. You don't have to live in Galveston County.
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.
Spay / neuter clinic · 913 Shaw Avenue, Pasadena
Low-cost spay and neuter surgery a few days a week, Monday through Wednesday, plus a vaccine clinic on the 2nd and 4th Wednesday of the month. A few walk-in spots open each morning for feral cats. Call ahead for prices.
Spay / neuter clinic · 7234 Wynnwood Ln, Houston
Affordable spay and neuter surgery by appointment, open to the public and to rescue groups. Cat spay or neuter is $90; dog prices start at $125 and rise with weight. Call or text to book.
Spay / neuter clinic · 515 W 2nd St, Freeport
Low-cost spay and neuter surgery for dogs and cats, Monday through Thursday by appointment, at the Freeport clinic. Book online; call ahead for current prices.
Assistance program · Mobile / rotating sites
A $20 mobile clinic visit gets your dog or cat spayed or neutered, vaccinated, and microchipped. Currently limited to Harris County Precinct 3 residents; sign up online about a week ahead — appointments fill fast.
Assistance program · Montgomery
Grants to help low-income families in Montgomery, Harris, and nearby counties pay for spay or neuter surgery, redeemed at partner low-cost clinics. Email ASVT to ask for help.
Assistance program · The Woodlands
Subsidized spay and neuter surgery for Montgomery County pets through partner vet clinics, plus a pet food pantry for qualifying seniors. Appointments only — call the hotline and leave a message; spots fill fast.
Assistance program · The Woodlands
Two subsidized spay/neuter plans for Grimes, Liberty, Montgomery, Polk, San Jacinto, Walker, and Waller county residents: $60 if you're on government assistance or earn under $40,000 a year, $85-$140 if you don't qualify for that. Apply online, then call a partner vet to book.