Heat treatment (thermal remediation) for pests/bedbugs?

We have carpet beetles and would like to try a no-chemical heat treatment solution.

Does anyone have recent experience with a chemical-free company that treats pests or bedbugs using heat?

The only place I found so far on yelp is https://bayareabedbug.com/. Has anyone used them?

Much appreciated!

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I can't make a recommendation but just wanted to say that we had carpet beetles and got rid of them easily without resorting to professionals.  The internet made them sound much more scary than they turned out to be.  Of course, that may be because we don't actually have carpet. 

They were in my teenage daughter's room only.  She often eats in her room and leaves the dirty plates etc. lying around for a long time.  We removed food debris, vacuumed thoroughly and put stuffed animals and fabric through a hot dryer cycle.  It did the trick.