If you’re looking for replacement windows in Golden, CO, it can be hard to know where to start. From different styles and materials to brands and types, you have tons of options for replacement windows. If you’re feeling overwhelmed, the best place to begin is with the brand. Once you choose a good brand, the other decisions tend to fall into place.   

There are lots of brands to choose from, but some of the best are Milgard, Simonton, and Andersen Windows.   


Milgard is a well-known and trusted replacement window brand. They have many different window lines, but the two most popular are The Style Line Series and the Ultra Series. The Style Line Series is a line of vinyl windows that are focused on quality and affordability. Their slim frame allows more natural light into the space, and the vinyl construction means less corrosion and maintenance. Some of the benefits of the Style Line Series are:  

  • Quality Hardware, 
  • Durability 
  • Premium frame colors 
  • Full lifetime warranties  

The Milgard Ultra Series is a more upscale line. The windows from this line are all about visual impact, and their fiberglass material holds up well in the face of swelling, warping and rotting. Ultra Series replacement window benefits include:  

  • A wide range of frame colors 
  • Full lifetime warranty 
  • Great hardware 
  • Impeccable energy efficiency  


Simonton is another premium replacement window brand with many different lines. Two main Simonton lines are the Asure line and the 5500 Series. Asure windows are all about more sunlight and outdoor views as they have narrow frames and bigger viewing areas. Some other Asure benefits are:  

  • Glass packages for energy efficiency  
  • Matching patio doors  
  • Double lifetime warranty  

The Simonton 5500 Series has the most advanced energy efficient glass packages, and comes in a wide variety of styles. Some other benefits are:  

  • Beveled frame design for a classic look  
  • Custom styles available 
  • Distinctive hardware options 
  • Increased sound dampening and security  

Anderson Windows   

Anderson wood and composite windows offer great energy efficiency. These windows are either made from wood or exclusive Fibrex composites for strength and low maintenance. They have extra structural rigidity for a weather tight seal that’s easy to maintain even in the face of extreme weather and climate. Anderson Windows offer benefits such as:  

  • Rot and decay resistance 
  • Infused color for reduced maintenance and increased longevity  
  • Premium glass options for UV reduction and visible light transfer 

If you want to learn more about any of these window brands, or about replacement windows in general, contact United Windows & Siding. We have years of Golden, CO replacement windows experience and would love to help you choose the best replacement windows for your home. Visit our showroom at 12090 W 50th Pl Unit B Wheat Ridge, CO 80033 to see some window options in person, or give us a call at 720-535-4767 to schedule a consultation or for more information.  

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