If you’ve decided to move forward with only a partial window replacement, there are a few ways to determine which windows are of highest priority. First and foremost, consider the security of your home. Are you unable to completely close or lock certain windows? Protecting your home from intruders should be a top priority to keep yourself and family safe. The next priority should be to improve the energy efficiency of your home. Replacement windows will eliminate drafts and lower your energy bills, not to mention keep your home feeling cozy during the cold winter months and cool during the summer months. Which rooms do you spend the most time in? Consider replacing those windows first.