Tommy Mac Discussions › Forums › Fix-it Forum: Home Improvement & Do It Yourself Repair Forum › bay window › Sinking bay window
Lynetta, this is a very common occurance. One problem with you getting answers here is that while the job is fairly easy, it’s darned difficult to describe and there are a lot of variations in windows and framing. Basically what is involved is jacking up the outer end of the window, building a support column or 2 of concrete that go below the frost line, then building a structure to go between the piers and the bottom of the window. Because water and weather are still going to move things around, it helps to design the structure to allow for future movement. The future movement should not be as much as there has been, but it will occur and you should plan for it. Some of the metal fixtures for concrete pier tops allow for this.
I don’t know how to tell you how to find someone that will do this well, or tell you how to do this. Your best advise may come from neighbors or just looking at nearby houses and neighborhoods looking for structures under their bay windows, then stopping to ask how they did it or who did it. Many people enjoy talking about their similar projects.
Henry in MI