I requested a proposal from this company for 2 options -- to install new access panels in a ceiling, directly underneath HVAC units, which were above the drop ceiling, so they could be serviced, as well as to use the existing access panels and install walkways above the drop ceiling, so the HVAC units could be safely accessed for service. They provided one option only, for the new access panels to be installed. It was a lump sum quote, with no detail provided, as to what, exactly, we would be paying for. I tried contacting them several times to obtain further information, as well as the second option that I had originally requested, but they would not answer the phone, nor return my calls and/or emails.