Larrett Inc. specializes in underground duct bank system installation. Through our large list of former and residual clients, Larrett has had the opportunity to provide expertise on a large scale in the State of Texas. We have the capabilities to install up to 345kv transmission duct banks, and the experience to deliver an exceptional finished product under budget and on time, all while operating under the inevitable stress that is experienced daily in the construction industry. Our specialized and proprietary thermal concrete encasement designs, and precise craftsmanship allow for increased longevity in regards to integrity of installed systems. We install both HPFF pipe type as well as XLPE duct banks.