Window Installation and Replacement Services in St. Louis

We can complete any window installation project, no matter the size. From a single window installation to a full home installation of new windows, we are your source for outstanding service.

Expert Installation

We specialize in the installation of wood, vinyl, fiberglass, and composite windows, handling anything from a few windows to full house installs.

Lifetime Warranty

With our lifetime warranty, you can rest assured that your home’s windows will last for years to come.
As our client, if ever you have broken glass on a window we install, we will come out and fix it for free!

Features and Functionality

From saving money on your gas and electric bill to added security features, we have your home protected.

Whether your current windows are outdated or you want a new look for your home, Coldstream Exteriors is the ideal choice for window replacement services in the Greater St. Louis area. Boost curb appeal and improve energy efficiency with brand new windows that are installed quickly and correctly. We outshine local competitors by having multiple awards from Angie's List and HomeAdvisor, and we work hard to keep an A+ rating with the Better Business Bureau (BBB).

We are trusted in the Greater St. Louis area because we've partnered with over 5,000 customers and have 25+ years of experience. With Coldstream Exteriors, you'll put zero money down on your new windows until after we've completed the project.

Energy Star logo

Energy Star Certified

Most of our windows are ENERGY STAR certified. Our goal is to help you save money on heating and cooling costs, so our window installations have tight seals to keep the elements out. Stay warmer in the winter and cooler throughout the summer with our high-quality window options that complement your home's exterior.

Here Are Reasons Why Clients Choose Coldstream Exteriors:

Coldstream Exteriors has a fantastic reputation in the Greater St. Louis area because we handle window replacement projects with close attention to detail. Customers always receive the best service, and you will know the price before we start, so there are zero surprises.

Choose Coldstream Exteriors to take advantage of the following benefits:

  • Our business has been operating for over two decades
  • You have your own project manager who oversees the work
  • We only install premium brand windows at extremely competitive prices
  • We won Angie's List Super Service Award multiple years running
  • We've finished 5,000 projects.
  • We are a fully insured company
  • We hold the Top Rated Pro Award from HomeAdvisor
  • Our team provides free estimates and inspections.

Start planning your window project by calling us at (314) 380-8111 today. For a free inspection at your home in St. Louis, complete a contact form.

Hire Us for Your Window Installations

Coldstream Exteriors will oversee your window installation project from beginning to end. We work with you to identify the ideal windows for your home based on the premium products we offer. Your dedicated project manager will maintain communication between you and our team while your project is in progress.

Count on Coldstream Exteriors to show up with the appropriate tools, equipment and resources necessary for top-quality results. Then, we will leave your property as clean as it was when we first arrived. 

We'll Replace as Many Windows as You Need

Your window replacement process will be treated with attention and care from start to finish, no matter the size of the project. Our team can replace a single window, or you can have us remove and install new windows throughout your house.

All of our customers have a single point of contact for their project. Your project manager will speak with you to learn about the scope of the work before we begin.

Pick From the Highest Quality Window Materials

We're a leading window replacement company serving the Greater St. Louis area, so we only offer window styles made of long-lasting materials. You can select from vinyl, wood, fiberglass or composite windows. Your project manager will explain the various choices and help you match your window color scheme to your house. We have the ability to custom design windows to fit your needs and can even create custom glass types such as: stained and privacy glass.


We serve the following areas: