3/25/17: Had heating issue in Darien and Levco tech person (I forgot to ask his name) was OUTSTANDING. Not only did he know every aspect of our unit and how they needed to be serviced, he remedied some prior poor cleaning jobs by other companies. This guy was a true pro and was incredibly throrough.
Been a satisfied customer for nearly 10 yrs. Office staff as well as on-site techs are knowledgeable and efficient.
Not happy but its been a short relationship.we will see.