When I had to do this, I simply visited a number of local vet offices and inquired as to the price. It is unfortunately very common, and every vet I visited was able to provide the service. I found one in Sun City that was the most affordable, perhaps because so many folks there are on fixed incomes. But mostly it was because the price was much cheaper if you take your dog with you afterwards for disposal. I opted for that because I wanted to bury mine here on our acre property, which I did. Before every rainy season I sprinkle some wild flower seeds from Home Depot over where they lay, and it looks really beautiful during that part of the year.