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Folding window installation costs about $1,600 on average, ranging from $500 to $3,000. The cost factors of this project include the size, the type of folding windows, the number of panels, and the type of glass. Different types of folding windows include:

• Standard folding window: $200 per linear foot

• Glazed folding window: $240 per linear foot

• Standard folding window and swing door: $1,000 per linear foot

• Folding window and sliding door: $2,000 per linear foot

Depending on the window style and your home's layout, you can install replacement windows from either the inside or the outside. Many installations are done from the inside because it allows for better access and weather protection, but some exterior installs are easier for certain types of siding or trim. The key is choosing the approach that gives you the best access to the frame while keeping the existing structure intact.

Windows with muntins are slightly more expensive because you’re paying for more material, but the cost shouldn't be that much higher since most muntins are fake on modern windows. You’re looking at a cost between $25 and $100 more per window for muntins, depending on the type. The only exception is if you want custom muntins to match your home style or meet your personal preference. Most manufacturers will charge more for these as they can’t mass-produce them. Windows with true muntins are rare, and they’re much more expensive upfront and over time if you ever need individual glass replacement.

Windows may need to be replaced after a hurricane if they’re severely damaged. For example, if you have windows with blown-out glass and a cracked frame, they will need to be replaced. It’s a similar story if you have windows with noticeable water damage. However, if your window pane has small cracks but the frame is still in good condition, you may be able to repair the window.