Every time I took a wheel to a bike shop, they tried to sell me a new wheel. Even when it wasn't a bad warp, they said it was too far gone and I should get a new wheel for about 50 bucks.
You could get a truing stand and learn how. It just takes a little patience.
Here in the Philippines I get all my wheels trued at the bike shop after I lace them up. But it's just a couple dollars and it supports the local bike shop.
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I have a few bikes shops in close proximity to me. I’ll get some quotes and see. If not it might be a good skill to learn.