Ind. Code § 35-43-6-4

Sec. 4. As used in this chapter, "home improvement contract" means an oral or written agreement between a home improvement supplier and a consumer to make a home improvement and for which the contract price exceeds one hundred fifty dollars ($150). Multiple contracts entered into by a home improvement supplier with a consumer are considered a home improvement contract for the purposes of this chapter if the multiple contracts arise from the same transaction.