You may think you’ll save costs by replacing your windows yourself. After all, labor costs are often a significant portion of a window installation estimate. However, trying to do it yourself may not save you money in the end. A licensed, professional window installer can save you money by: Measuring the first time correctly: Professionals know how to measure and get the right window for your space, ensuring that you don’t make a costly error. Accessing wholesale prices on materials: You will have to pay higher retail costs for materials, while professionals pay less because of their wholesale discounts. Recognizing signs of more severe issues: If your window is hiding mold or rotting wood, you’ll need to fix the problem before putting in your new windows. But, again, a professional knows what to look for and can suggest cost-effective solutions. Getting the job done fast: An installer with years of experience will have a speedy, streamlined process for replacing your windows, which will reduce your labor costs. Knowing the building codes: If you try to modify a load-bearing wall or place your window in a position prohibited by building codes, you may end up having to pay significantly more money to fix your mistake.