Your web site described the exact problem that my house was suffering from (sagging floors) and what you did to correct. Other sites just dealt with the foundation. Kent did a thorough check of my crawl space (no easy feat) before making any recommendations. He showed me the smart jack hardware (a lot better than the standard floor jacks available at the local hardware)and he provided/reviewed literature detailing the causes of sagging floors and what would be done to fix the problem (in detail). You office staff was very polite and the installation crew did not leave any supplies or trash under house or in the yard- they were very clean.
Thomas B. of Durham, NC