TDH Mechanical Inc. are a GREAT company! The guys installed my new Trane AC Unit in May 2020 and my new Trane Furnace in Dec. 2020. They were here to do the installs in just a day or two after I first contacted them re: the AC unit, and the very next day after I called about the furnace. Both teams--Mark and Jose on the AC, and Wally and Alfredo on the furnace--took their time and did an excellent job, explaining everything they were doing as they went and answered all my questions re: parts, units, and warranties, etc.... And Jacquie in the office is a great communicator and helped me with all the warranty info and financing paperwork on both jobs, both over the phone and via email. Tim, the owner, and Jim in sales were great and very helpful as well with original invoices/paperwork and returned my calls promptly! Can't say enough about how smooth and hassle free both jobs/installs went!! TDH are total professionals!