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Spay & Neuter Service



Humane Society Silicon Valley offers affordable spay and neuter surgery for dogs, cats and rabbits. Surgery is by appointment only and include a complimentary nail trim and pain medication. We offer Elizabethan collars(cones) $10 plus tax and HomeAgain microchips at a discounted price($25 plus tax)on the day of surgery.

Please note: All animals must be current on vaccines at the time of surgery. We can provide vaccines at the time of surgery for an additional cost. This protects your pet from possible exposure to infectious diseases.

  1. Vaccine documentation can be sent to or fax as "Attention: Medical Center" to (408)262-2131.
  2. A deposit is required to hold your appointment date. The deposit is non-refundable and non-transferable but will be applied to the total cost of the surgery. The deposit is $50 for dogs or rabbits and $25 for cats.
  3. Please let us know if your pet has any medical conditions, health problems or is on any type of medication.
  4. Surgery drop off time is 6:30am-7:30am, pick up time 4pm-6pm Monday through Saturday.
  5. All dogs MUST be on-leash and cats must be in carriers.

Feel free to contact us at 408-262-2133 Ext 108 with any additional questions.

Regular Rates

Please note that additional charges may apply if your animal is pregnant, in heat, cryptorchid (testicles not descended), or overweight. Some of these conditions are not apparent until the time of surgery.  Additional charges will vary depending on patient condition.


surgery pricing is based on the weight of your pet

  Female Male
under 25 pounds
26-50 pounds $120 $95
51-75 pounds $150 $120
76-99 pounds $170 $135
100 pounds and over
$170 + $2 per additional pound
$135 + $1 per additional pound


  Female Male



must be at least 3.5 lbs and six months of age

  Female Male


If you are dropping off an animal that is not yours, the guardian will need to fill out the Spay/Neuter Surgery Release form. Please provide this document to staff for admittance of your pet in addition to proper documentation of vaccinations. For your pet’s protection, vaccines should be current at the time of surgery. We can provide vaccines at the time of surgery for an additional cost.

Homeless/Feral Cat Services

What is TNR (Trap, Neuter, Return)?
TNR reduces homeless cat populations by surgically sterilizing cats so they cannot reproduce. New data shows that TNR, when accompanied by ongoing homeless cat management, is still the most effective, humane method of reducing homeless cat populations (called colonies).

Cats are humanely trapped, taken to shelters or veterinary clinics where they are spayed/neutered and vaccinated.  Their ears are tipped/notched so people can see that they belong to a managed colony. Only healthy cats are placed back in their colonies so there is no health risk to other cats and animals.

TNR helps make cats better community citizens.  Their colonies gradually diminish in size and by reducing or eliminating yowling associated with mating, fighting and wandering, colonies become more stable - there are fewer  newcomers and the health of the cats improves.

For more information about homeless/feral cats, visit our the feral cat web page

Our Subsidized Feral Fix Program

As part of Humane Society Silicon Valley's mission to save and enhance lives, we offer a program available to anyone caring for a feral cat or kitten(s). We do this to make costs lower for caregivers and more importantly, to be able to offer TNR for all feral cats, regardless of where they reside. The surgery includes spay or neuter, a FVRCP (distemper) and a rabies vaccine and a mandatory tip/notch of the ear (for identification).

  • Free for Santa Clara County residents (photo identification is required)
  • $50 for out of county residents

We do offer additional services at the time of surgery, by request, for homeless/feral cats:

Combo test (FeLV/FIV) - $45 If you think you may have a sick cat in your colony, it is recommended to test for FeLV and FIV to prevent these diseases from being spread throughout the colony.

Flea preventative treatment - free for Santa Clara County residents, $5 for out of county
We use Revolution (a Pfizer product) flea control which also treats ear mites, intestinal worms (except tapeworms), and prevents heartworms.

HomeAgain Microchip (includes registration) - free for Santa Clara County residents, $5 plus tax for out of county
The microchip is registered for the life of the cat. If a cat in your colony is found and turned in to a shelter, and the cat has a registered microchip, you will be notified so you can help get the cat back to its colony.

Tape Worm Treatment - free for Santa Clara County residents, $10 for out of county

All cats must be brought in a humane trap and only one cat per trap. An appointment must be made in advance for all TNR surgeries.

-Prices of services subject to change without notice--