Attractive & Functional Single-Hung Windows

If you’ve decided to replace your home’s outdated windows and you’re partial a classic style with easy operation, you may want to consider single hung windows from Big Sky Exterior Designs and Bath Solutions. We’re a locally owned and operated company that’s been exceeding the expectations of homeowners throughout the Billings, Montana, area since 2000, and we’d love the chance to add you to our extensive list of satisfied customers. We offer high-performance single-hung replacement windows made to reliably withstand the harsh winter climate of Montana and will provide an immediate boost to your home’s curb appeal. We also offer flawless window installation services, and we stand behind our work with ironclad warranty protection.

Offering the Finest Replacement Windows

We source our single-hung windows from two of the top names in the industry: Simonton and Sierra Pacific. You’ll have your choice of:

  • Frame material, as we offer vinyl, wood, aluminum-clad wood, and composite options
  • Glass package, including multi-pane options that will greatly reduce heat transfer
  • Interior and exterior frame color and finish, so you can match your windows to your home’s design scheme
  • Grid patterns and hardware finishes

And if you’re not sure how you’d like to customize your windows, we can show you what the result will look like ahead of time using our 3D project visualizing software.

Want to Learn More?

See for yourself why Big Sky Exterior Designs is one of the most trusted window installation companies serving the Billings, MT, area. Contact us today if you’d like more information!

“We contracted with Big Sky Exterior Designs to put in a slider door that would replace a single exterior door to our Patio. The finished install is fantastic! The crew, Donald and Travis, were very respectful of our home and neighbors during the install as well as very professional. The outcome is better than we anticipated. Love the new slider! Definitely a professional quality install and company to have the pleasure to work with. Thank you Big Sky Exterior Designs!”

The Sky Is the Limit

For Your Home Renovation Ideas

We'll be happy to help bring your remodeling dreams to life!
Get Started

Financing Available


No Interest if Paid in Full in 12 Months!

0% for 6 months followed by 9.99% for 120 months

Learn More

“Thank you to Todd, Kyle, Sam, and Alberto and others who were involved in residing my 1908 farm house. The end result was amazing. They were able to retain the architectural challenges all while braving the end of February cold and wind! Impressive!”

“We contracted with Big Sky Exterior Designs to put in a slider door that would replace a single exterior door to our Patio. The finished install is fantastic! The crew, Donald and Travis, were very respectful of our home and neighbors during the install as well as very professional. The outcome is better than we anticipated. Love the new slider! Definitely a professional quality install and company to have the pleasure to work with. Thank you Big Sky Exterior Designs!”

“We cannot say enough about how thankful we are to have found Big Sky Exterior Designs to complete our metal siding for our remodeled home. The crew was AMAZING and did such a great job and worked so hard to complete the entire house within 5 days. The crew was professional, cleaned up every evening before leaving, and paid meticulous attention to the detail work. Thank you Big Sky and the Crew. We appreciate your hard work.”

All conversations are recorded for quality assurance and training purposes.