How soon after a home purchase can you apply for a home equity loan?

Our house is new construction and is our first home, so we don't have much additional money to install things like fencing and central air. Also, we got our home using alternative credit, but have been maying our mortgage payments religiously.

depends on the alternative credit....normally, you can get a heloc the day after closing.....but for the same appraised value. if you're taking out more than the initial purchase price/appraised value...then it's normally 6months