A small bit of honesty- don't call a general contractor to assess your window needs. They will always advise you to replace the whole window which may cost you thousands. Northern Glass Company can help you. Maybe you don't need new windows, perhaps your glass just need to be replaced. If your windows are fogged up or have moisture in between the panes the glass unit may just have to be replaced. This could save you thousands of dollars.

Foggy IGU exterior

Foggy IGU interior

New IGU exterior

New IGU interior