Thank you for your comment. They are the original windows of the home which is 13 years old. We contacted the builder and he said that the manufacturer is out of business (but I don't recall the manufacturer name). If we only replaced the double-hung windows and didn't replace a number of "specialty" arched windows and oval windows, do you think it would look noticeable that we only replaced some and not all the windows?

Show some pictures as without a bit more info it is very tough to tell. Wood windows "should" have a similar appearance, but are the "specialty" arch window attached or seperate units? You can replace just the glass thru a local glass company and have the sill replaced if necessary. 13 years however is over half the life expectancy of a wood window so there is that thought process to be considered as well.

I assume the seal on your double pane glass has failed (it usually take 20 years or more). It might be possible to replace the glass if you can find a company that does it.

Some aluminum clad wood windows offer 50 or more standard colors and custom mixed colors. You can paint an all wood window or a fiberglass window like Marvin's Integrity.

Cheapest fix is probably going to be replacing just the panes.

I have attached a photo of the cloudy window. I think we may try to replace just this one window first and then replace all of them gradually. Also look into options that can be painted including cellular PVC windows, wood, fiberglass. I appreciate everyone's input!!

All have great options in those family of materials. Much of that decision will come down to what look and feel you are going for.

Marvin provides the following information for painting the "Ultrex" fiberglass cladding used in their Integrity windows:

Can I paint my Ultrex product?

Yes, the Ultrex material utilized by Integrity and Infinity is indeed a paintable surface.

Below is a list of instructions and recommendations provided by Integrity/Infinity for painting your Ultrex product.

Ultrex® Refinish Information

Painting Ultrex:
You will need to supply:

• 320 - 400 Grit sandpaper
• Foam paint brush
• Masking tape
• Quality exterior grade acrylic latex paint

Spot test a small area using the following procedures:

1.) Thoroughly sand the factory finish with 320 – 400 grit sandpaper.
2.) Wash the surface with water and detergent to remove contaminants, rinse with clear water, and dry thoroughly.
3.) Mask any window components that will not be painted.
4.) Coat the Ultrex with a quality exterior-grade acrylic latex paint.
5.) Acrylic latex products gain full adhesion after seven to ten days cure.

*After the seven to ten day acrylic latex paint cure time check to see if the paint has adhered to the unit. If the paint has not adhered to the surface, recheck the surface preparation procedures

Please refer to your Integrity Owner's Manual or Infinity Owner's Manual for preparation and painting recommendations.

Windsor says ths about painting their cellular PVC windows:

LEGEND CELLULAR PVC VERSUS VINYL

As a replacement product, Legend windows present key advantages over conventional vinyl windows. Often, vinyl replacements act as a cover for old, rotting frames or exterior casings, while also reducing overall glass size. Legend retains your glass size while providing a paintable replacement window.*

*For exterior paint applications, Windsor does not recommend the application of paints with an LRV rating of 54 or lower. For darker paint colors with an LRV rating of 54 or lower, you must use a product that has been specifically developed for application on PVC and follow the paint manufacturer’s recommendations. Windsor is not liable for paint used on our Legend windows or the result of its use. Please review the instructions and guidelines found in Windsor’s Care and Use Guide.

[The issue with LRV (Light Reflectance Value) ratings is that cellular PVC expands more from heat when painted a darker color so lighter colors are better and there are special paints that can reduce the degree of expansion from darker paint but don't expect to be able to use a color much darker than "medium" gray. ]