If you have fogged windows in your house, you may be wondering what causes them and how to fix them. Fogged windows occur when the seals around the insulated glass units (IGUs) fail, allowing moisture to enter the space between the panes. This reduces the energy efficiency and visibility of your windows.

There are a few options to repair fogged windows, depending on your budget and preference. Here are some of them:

- Replace the window sashes: This is the easiest and most effective way to get rid of fogged windows. The sash is the IGU and the frame around it. You can pop out the old sash and drop in a new one with a intact seal and gas filling. This will restore the thermal performance and clarity of your windows. However, this option may be costly and require professional installation.

- Replace the IGU unit: This is a cheaper option than replacing the whole sash, but it is also more complicated. You will need to remove the old IGU from the frame, clean the inside of the panes, and install a new IGU with a new seal and gas filling. This option may also require professional tools and skills.

- Defog the IGU unit: This is a temporary and less invasive option than replacing the IGU unit, but it is also less effective. A professional can drill two tiny holes into the window glass near the bottom of the pane and spray a cleaning solution inside to help eliminate the fog. Once the fog is gone, an anti-fog solution is sprayed inside the glass and small vents are added to the glass via the holes. The holes are then sealed with clear silicone caulk to prevent moisture from infiltrating the unit. This option may not restore the energy efficiency of your windows, and the fog may return over time.

If you are looking for companies in Atlanta that offer fogged window repair services, here are some of them:

- Garrety Glass: They offer window sash replacement, IGU replacement, and defogging services. Their website is https://garretyglass.com/ and their phone number is (717) 741-9944.

- Argo Window Repair: They offer IGU replacement services with high quality glass units. Their website is https://argowindowrepair.com/ and their phone number is (847) 796-5126.

- The Glass Guru: They offer window sash replacement, IGU replacement, and defogging services. Their website is https://www.theglassguru.com/atlanta/ and their phone number is (770) 623-9779.

A couple of other companies include:  Glass Doctor of Atlanta and Window Medics Atlanta.

https://atlanta.windowmedics.com/