Knell Construction has been the leading installer of lightweight gypsum concrete underlayments throughout Utah, Idaho and Wyoming. With over 20 years experience, we have established an excellent reputation in our market as a respected leader and full service resource. We specialize in radiant heat applications for custom homes and soundproofing for multifamily projects. If you need a gypsum concrete underlayment, Knell Construction has a product to fit your needs. Call us to discuss your next project (801) 274-1178 or email us at: [email protected]