If you are planning a window replacement project in Ann Arbor, one of the first questions you probably have is how long the job will take. The honest answer depends on several factors, but most homeowners can expect a single window to be installed in one to three hours, with a full-house project typically completed in one to two days.
For a standard double-hung or casement window replacement, an experienced installer usually needs about one to two hours per window. That includes removing the old unit, prepping the opening, setting the new window, insulating, and sealing around the frame. A home with eight to twelve windows is almost always finished within a single full workday when a crew of two or more technicians is on the job. Custom windows, larger picture windows, or bay and bow windows take longer, sometimes three to four hours each, because of their size and the extra structural work involved.
Ann Arbor homes present some unique considerations. Older neighborhoods like Burns Park, Kerrytown, and the Old West Side have houses built in the early 1900s where original wood frames may have rot or out-of-square openings that need extra attention before a new window can be properly seated. Budget a little extra time if your home is pre-1960 construction.
Several variables can push a project past the standard estimate. Permit requirements in Washtenaw County may apply for certain structural changes, and scheduling an inspection adds time to the overall process. Weather is another real factor in Michigan. Rain, freezing temperatures, or heavy wind can delay exterior sealing steps and are common during Ann Arbor winters and early spring. Supply chain lead times also matter. Standard in-stock windows can arrive within a week or two, but custom-ordered units from manufacturers often take four to eight weeks to deliver before installation can even begin. Make sure you confirm lead times with your contractor upfront so your project timeline is realistic.
Getting an accurate timeline starts with a thorough in-home assessment. A good contractor will measure every opening, check the condition of existing frames, and flag any structural issues before giving you a schedule. Ask whether they pull permits when required, whether their crew handles the full installation in-house versus subcontracting, and what their policy is for weather delays.
Ready to get a clear timeline for your home? Connect with a trusted local window installation expert serving Ann Arbor and the surrounding Washtenaw County area. A qualified professional can assess your specific windows, provide an honest schedule, and get your project done right the first time.