Spay/Neuter Service

The Animal Defense League (ADL) provides spay and neuter services for owned cats and dogs as well as feral cats.  Each animal must weigh at least two pounds before being accepted.  These services are provided at our hospital, which is located at 11215 Iota Drive, San Antonio 78217.  A map of our hospital location can be obtained by selecting the following link

Owned Cats and Dogs:

Services for owned pets are provided on an appointment basis only.  Neuter and spay surgeries are performed Monday through Wednesday and Fridays for owned pets.  To make an appointment for one of these days please call 210-655-1481 ext. 106 between the hours of 10:00am and 3:00pm on Monday – Friday and between the hours of 9am and Noon on Saturday.  No voice mails are accepted.  A $25 non-refundable surgery deposit will be required prior to an appointment being scheduled. Please ask the ADL Hospital staff for details. Each pet owner with an appointment must arrive between 7am and 9am.  Dogs may be brought to us with a leash or cage.  Each cat must be brought in a cat carrier and each cat must be in its own carrier.  Pickup occurs from 4pm – 5pm on the day of the appointment. If you would like to request an appointment online, please fill out the request form at the bottom of this page.

The regular prices for our spay/neuter services are as follows:

Male cat $40 Female cat $50
Male dog under 25 lbs $45 Female dog under 25 lbs $55
Male dog 25 – 50 lbs $60 Female dog 25 – 50 lbs $70
Male dog 51 – 75 lbs $70 Female dog 51 – 75 lbs $85
Male dog over 75 lbs $90 Female dog over 75 lbs $100

There is no need to qualify for our regular Low Cost spays/neuters performed at our Clinic. All animals must weigh at least two pounds in order to undergo a surgical procedure.

Services Available During Spay/Neuter Appointments:

  • Rabies Vaccination (required): $10 (Written proof that your animal has had a rabies vaccination is required. If none is provided, the animal will be given the vaccination and the owner will be charged accordingly.)
  • Canine bordatella immunization: $15
  • Canine booster (RDAPP): $15
  • Feline booster (FVRCP): $15
  • Nails clipped: $10
  • Heart Worm Test: $20
  • Fecal Exam and Deworming: $20
  • FIV/FELV (test only): $25
  • Microchipping: $15
  • Canine Package (Rabies/RDAPP): $25
  • Feline Package (Rabies/FVRCP): $25

FREE Pet Wellness Exams With Dog Heartworm Test or Cat Combo Test:

ADL will be offering a free physical exam with a $25 Heartworm test for owned dogs (ONLY for dogs over 6 months of age) and a free physical exam with $25 combo test for owned cats on specific days. ADL will also provide a one year prescription to pet owners whose dogs’ heartworm test is negative as well as for cats that are brought to us. The one year prescription is only valid for the purchase of Heartgard, Nexgard and Revolution from the Animal Defense League shelter. During the below exam dates, pet owners will also be able to obtain all required and recommended vaccines for their cats and dogs. Contact the ADL Hospital for details: 210-655-1481, ext. 104 or download a copy of the Pet Exam Flyer!

Feral Cat Spay and Neuter Information:

Feral cat neuter and spay services are provided on a walk-in basis Monday through Wednesday and Fridays.  No appointment is required.  The daily limit for Monday, Tuesday, Wednesday and Friday is 8 cats and the individual limit is 2 cats per person on these days.  Each cat or kitten must arrive in a humane trap (covered) and only one cat or kitten is allowed per trap.  Feral cats are accepted between 7am and 9am.  Pickup occurs on the same day between 4pm and 5pm.

Best Friends Animal Society provides vouchers for residents of zip codes: 78201, 207, 210, 213, 221, 223, 227, 228, 229, 237, 242, 245, 250, 251 that will qualify them for free spay and neuter services for outdoor stray cats. Please contact Thomas ( or Evelyn ( at 210-306-6126 for information on their services.

Other organizations who offer pet sterilization services:

Spay / Neuter Request Form

  • Do not feed your pet any type of food after 10pm the day before surgery; water is okay. Arrival time the day of surgery is between 7am and 9am. Pickup time will be between 4pm and 5pm the day of surgery. Proof of current rabies vaccination in the form of a vaccination certificate showing date given and re-vaccination date is required or a rabies vaccination will be administered and charged to the pet owner.