Sledgehammers come in a wide range of prices. It shouldn’t be shocking that lightweight sledgehammers are significantly cheaper than one that weighs more than 20 pounds. In general, depending on your needs, you should be able to find a quality lightweight sledgehammer for around $15. But if you want a heavier professional-grade sledgehammer, or one that features enhanced coatings and handle materials, it is possible to spend as much as $150 or more.