Skip to content

Milgard C700 Fiberglass Windows

The Milgard C700 is a premium fiberglass window series designed for homeowners who want more than vinyl can offer. Fiberglass is one of the strongest frame materials in the window industry — dimensionally stable across temperature extremes, resistant to warping and corrosion, and built to maintain a tight seal over the long term. Milgard's C700 Series brings those material advantages together with narrow sightlines, energy-efficient glazing, and the aesthetic flexibility to suit new construction and renovation projects alike.

As a certified Milgard dealer, Discount Window and Door supplies and installs the full Milgard C700 lineup throughout Anaheim and Orange County. Contact us for a free estimate or visit our Anaheim showroom to see the C700 Series firsthand.

milgard C700 header
milgard C700 FIberglass windows
Milgard Windows and Doors

If you’re looking for a window that’s energy efficient, practical, durable, and aesthetically pleasing, look no further than the C700. 

Fiberglass is one of the strongest materials on the fenestration market. This sturdy substance can withstand both acts of nature and standard wear-and-tear, making for a long-lasting product.​

Contact us for your free estimate.

C700 Series Specifications

Frame Material

Pultruded fiberglass — stronger and more dimensionally stable than vinyl

Glass

Dual-pane standard; multiple glass packages available

Energy Certification

ENERGY STAR® certified

Project Types

New construction and replacement

Standard Features

SmartTouch® lock (single hung); FlexScreen® included on awning windows

Aesthetic Options

Multiple exterior color and hardware finish options

Warranty

Upgrade to a Milgard Full Lifetime Warranty

Available C700 Series Window Types

Horizontal Sliding Windows

The Milgard C700 horizontal slider is built for ease of operation and long-term performance. Ideal for renovation or new construction, this fiberglass slider opens smoothly, holds its seal over time, and comes in a range of aesthetic options to complement your home’s exterior. Energy-efficient glazing and Milgard’s precise manufacturing standards mean it performs as well as it looks.
  • Material: Fiberglass
  • Project Type: Replacement, New Construction

Single-Hung Windows

The Milgard C700 single-hung is a versatile fiberglass window that works with a wide range of architectural styles. Easy to operate and built to last, it comes standard with Milgard’s SmartTouch® window lock — an intuitive locking mechanism that’s as easy to engage as it is to release. A strong choice for both replacement projects and new construction.
  • Material: Fiberglass
  • Project Type: Replacement, New Construction
single hung windows

Picture Windows

Designed to provide amazing views and usher in ample amounts of sunshine, the C700 picture window is an ideal option for the contemporary home. Its narrow sightlines give the C700 a sleek modern look while optimizing the views to the outside. And, like the other windows in the C700 Series, the picture window is available with a multitude of aesthetic options.
  • Material: Fiberglass
  • Project Type: Replacement, New Construction

Awning Windows

The Milgard C700 awning window opens from the bottom out, letting in fresh air even during light rain. It comes standard with Milgard’s FlexScreen® — a flexible screen that stays out of the way when the window is closed and expands to cover the opening when it’s open. Durable, energy-efficient, and well-suited to both renovation and new construction.
  • Material: Fiberglass
  • Project Type: Replacement, New Construction

Casement Windows

The Milgard C700 casement opens outward on a side hinge, creating a wide, unobstructed opening for ventilation. The handle operates with minimal effort, and the fiberglass frame keeps the sash tight against the weatherstripping when closed — making it one of the most energy-efficient operating styles in the C700 lineup. Available with multiple aesthetic options to fit any home style.
  • Material: Fiberglass
  • Project Type: Replacement, New Construction