As seen in the table above, most home warranties will cap coverage at a certain dollar amount. For instance, your home repair insurance may cover a septic tank repair up to $162, leaving you to pay for the remaining $1,378. As you can see, a home warranty may not cover the full cost of repair or replacement, but homeowners will still save some money in the end. Additionally, some home warranty companies will cap coverage at a certain amount per claim or per year. Carefully read your sample contract before you buy home repair insurance.