yle="color: #5d4297; font-size: 14px; font-family: arial,helvetica,sans-serif;">As you know, we have used Pro-Est HVAC for years.  We have found that data entry in extremely easy and fast.  As we accumulate factors in the data base, the results from this system are astonishing.  Even after all this time, each project seems to be more accurate in both material and manpower.  We submit quotations with total confidence.     The program shows us the real and total costs of a project and allows us to understand where we can “trim” our numbers in the sales cycle to win jobs. We also issue the labor time lines to the project supervisors for manpower leveling and management. ...