3 Outstanding Brands, 1 Family Owned Company, Serving Seattle Since 1997

Simonton Windows and Patio Doors

High-Quality Products to Enjoy Your View

Simonton has been a leader in windows and patio doors since its humble beginnings in 1946. In the many decades since, the company has evolved, remaining committed to delivery energy-efficient vinyl windows. Every product they manufacture can be customized to meet ENERGY STAR® guidelines.

Emerald City Energy offers two distinct lines from Simonton. Here’s a look at the features of each.


You’ll enjoy less frame and more glass, allowing up to 40% more daylight into your spaces. The frames for these windows exceed ENERGY STAR® standards, helping you reduce your energy bills. DaylightMax doesn’t forget about the details with these features:

  • AutoSense™ Lock peace of mind—locks are engaged when the window is closed—with a low-profile design that is color-matched
  • Mitered glazing bead for a neat and clean finish
  • Interlocks have the same narrow design as the frame for a symmetrical appearance
  • Small baffles cover weep holes to keep insects out
  • Integrated Pull Rails (IPRs) enable you to handle the screen from anywhere and won’t break like pull tabs
  • Custom sizes for every fit
  • Numerous operating styles available
  • Decorative glass options


The Madeira Collection are designed with a traditional frame, similar to wood windows, but with the flexibility and energy-efficiency of vinyl. These classically styled windows are the perfect look for any home that craves a more traditional style.

These well-crafted windows offer dual pull rails molded into the sash for increased durability and ease of operation. You’ll appreciate the even sight lines as well for precise symmetry. For single- and double-hung operating styles, an Air Lok™ allows windows to remain partially open for fresh air.

Madeira windows are built to be energy-efficient with features such as:

  • Optional enhanced space with a U-channel design made of stainless steel for better thermal performance and increased strength
  • Available Super Spacer® made of non-metallic foam that is resistant to temperature transfer
  • Insulating glass unit that includes Argon gas between the panes
  • Low-E glass that keeps harmful UV rays from entering your home

Madeira windows have unlimited configurations and a variety of operating styles. You can customize these with options like a wall of casement windows or a fixed window flanked by single- or double-hung windows. You can further differentiate your windows by choosing from eight exterior colors.

Simonton windows are well-constructed and affordable. If you are looking for a premium vinyl window or patio door, Simonton is an excellent choice.

Learn more about the brand by contacting us today.

Easy Window & Door Estimates by Phone, Text, or Email!


(Serving King, Pierce, and South Snohomish)