Non-energy efficient windows and doors can represent a major source of unwanted heat/cold loss, discomfort, and condensation problems in the heating and cooling seasons. Depending on the condition of the old windows in an existing building, the savings can be higher if window/door replacement leads to long-term air leakage reduction. Windows/doors replacement can improve buildings in many ways:

o Lower HVAC Costs

o Improve Comfort

o Reduce Condensation

o Increase Light & View

o Reduce Noise

o Improve building’s look