If you are asking "in general", it depends. If your candle is NOT a standard wax base (which is a petroleum based product), you usually can. How is based on the problem you want to fix. If you are asking specifically if this place can fix your candle, besides the answer given, the owner probably can. He is very knowledgeable about this craft, but you will need to contact him to see if this is a part of his services he offers. At the least, I am certain that he can provide excellent assistance with suggestions for you.
In most cases, it is possible to fix imperfections in a candle
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