Helton Construction will let you know the final sales price of your custom home build before you obtain your loan or custom home construction begins. If any changes are made along the way we will update your pricing at that time so there are no surprises. What if the cost of building materials goes up after work has begun? Once we sign your contract, which is a fixed price, your price is locked in. Helton Construction's trade partners and suppliers will honor the prices given to us at the time of your contract.