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Clean and contemporary.

Quartz CityLine Windows and Doors

The CityLine series of windows and doors gives an immediate gloss of sophistication to your luxury home. CityLine empowers you to transform the look and feel of every room to create your perfect home.


Technology at the core.

CityLine windows are engineered and built for your unique home featuring Quaker’s® patented OptiCore® Technology. OptiCore® is an architecturally enhanced aluminum frame design that maximizes the thermal, structural and sound performance of each window. Originally engineered for large commercial buildings, OptiCore® Technology offers the most advanced thermal barrier system available for residential applications to maximize energy performance, while allowing for bigger windows and greater views throughout your luxury home.

Framed to perfection.

CityLine series windows and doors can be designed to fit any space or configuration. High quality framing components mean that your windows and doors are as strong and safe as the rest of your home’s unique features.

Corner Window
Lock Box Door
Sliding Door
Corner Door

Uncompromised Construction.

The CityLine series is engineered with the most structurally and thermally advanced architectural aluminum components, offering customers superior design flexibility and structural integrity.


CityLine windows with OptiCore® Technology are tested to achieve an FGIA (formerly AAMA) certified AW architectural rating based on both the windows maximum design size and gateway test size. Therefore, no matter the size and structural requirements of your new luxury home, your windows will perform to desired performance.


The CityLine series utilizes a sealant-injected double corner key construction for maximum strength in the corner joinery and frame. This composition ensures that every window and door will provide superior performance while offering flexibility in configurations to meet your architectural style.

Never fades, never rusts.

Proper corner joinery construction is essential for two reasons — ensuring a window’s stability and maintaining a water-tight seam.

A color for every space.

To match your creative intuition, Quartz™ luxury windows and doors offer a wide palette of powder coating and anodized finishes. CityLine windows even offer two-tone paint options, allowing you to mix interior and exterior colors. Whatever your lifestyle, whatever your preference, the Quartz™ luxury collection has you covered.

Tailored to you.

All Quartz™ luxury products come with superior component options, including:

  • Powder coated or class I anodized aluminum interior/exterior
  • Low profile architectural-grade hardware
  • Euro-Groove system
  • Muntin bars and simulated divided lites (SDL)
  • Premium FlexScreen®  window screens
  • Custom shapes and configurations
CityLine Series Door
Architectural Grade Hardware
CityLine Series Windows & Doors
Muntins & Grids
Premium FlexScreen
Custom Shapes & Configurations
CityLine Series Door Architectural Grade Hardware CityLine Series Windows & Doors Muntins & Grids Premium FlexScreen Custom Shapes & Configurations

State-of-the-art style.

The Quartz™ CityLine series provides exceptional thermal comfort, certified architectural performance and an impressive gallery of luxury options to match your lifestyle.

For more information on CityLine windows and doors, please contact one of the partners in our exclusive consulting network.

Live and entertain
in spaces that energize.