More skill will mean more pay. There will have a different pay between commercial and residential. In most fields, this is expected. If you’ve had more than 20 years of working in the field, you should be making around $30k annually. It is important to take into consideration standard deviations. You can be anywhere between the two averages. Average growth rates are increasing at an alarming rate. There are many other industries that aren’t quite as fast and exciting. HVAC can grow at an annual rate that is higher than 5percent. The industry is forecasting 13% growth in the industry. uz3cqjdysk.