Series 1800 Windows

Double Hung, 2 and 3-Lite Sliders and Picture Windows

If you have an eye for elegance and a need for lasting comfort, look no further. Ellison Series 1800 windows blends our highest level of craftsmanship and performance with our widest range of premium enhancements and optional features. From the exclusive InsulKor™ sash reinforcement and foam-filled frame to our eight popular painted exterior colors, the 1800 series offers the finest options for the finest homes.

Ellison All-Inclusive Replacement Brochure
Ellison Series 1800 Product Photo
Product Close-Up View
Series 1800 Double Hung Window
Feature Sheet
Product Close-Up View
Series 1800 Slider Window
Feature Sheet

Standard Features

  • Exclusive InsulKor™ polyurethane fiberglass-enriched sash reinforcement for superior thermal and structural performance
  • DP 60 rating (window size tested 36″ x 74″)
  • Low-E glass with argon gas keeps indoor temperatures comfortable and consistent
  • External accessory groove accommodates nail fin option
  • Full interlocking lock and meeting rail
  • Beveled mainframe offers a classic exterior appearance
  • Fusion-welded sashes and frame add strength and boost thermal performance
  • Dual low-profile, positive-action cam locks increase security (2 locks standard at 27-1/4″ or wider)
  • 3/4″ constant force coil balance permits easy sash movement
  • Sloped sill reduces air infiltration and allows for easy water runoff
  • Rubber bulb seal helps block outside air
  • Dual push-button night latches provide optimum ventilation
  • Full screen is supported by a strong extruded aluminum frame*
  • Full vinyl sash dam on sill and high-performance weather stripping protect against air infiltration
  • Integrated, slim-line lift rail allows for smooth sash operation
  • 4-1/4″ frame thickness enhances appearance as well as structural integrity
  • Jamb depth is 3-1/4″
  • Transferable Limited Lifetime Warranty
  • Lifetime Glass Breakage Warranty ensures the longevity of your windows

Series 1800 Slider Window Specific Features:

  • Integrated glide channel for easy sash opening and closing
  • Tandem rollers ride easily along friction-free glide channel
  • Available in 2-lite and 3-lite configurations
  • 3SL Available in 1/4-1/2-1/4 or 1/3-1/3-1/3 configurations
  • XX 2-lite configuration (both sashes operate)

* Screens are not meant to restrain a child from falling through an open window.

Vinyl Color Options



Laminated Color Options

Light Oak


Dark Oak

Painted Color Options


Brick Red



Dark Chocolate


Hunter Green



Note: Device/Monitor screen settings may affect color shown. Please refer to actual window sample when selecting colors. Laminates and exterior painted options available on select products, if they are not shown above they are not available on this product. Interior and exterior laminates available on white window only. Only use mild, water based household cleaner on painted product and rinse immediately with water. See full cleaning instructions for details. Grid offering limited to 5/8” contoured or SDL on exterior painted windows.

Grid Types

5/8-Inch Flat Grid

3/4-Inch Flat Grid

5/8-Inch Contoured Grid

1-Inch Contoured Grid

1-1/8-Inch Simulated Divided Lite (SDL) Grid

Grid Patterns




Perimeter Prairie


Glass Options

  • Low-E Glass
  • Ultra Low-E Glass with argon gas
  • Triple-pane, R-5 compliant glass with Low-E Glass with argon gas or Ultra Low-E Glass with argon gas
  • Super Spacer® sealant system (standard with triple-pane glass)
  • Obscure, tempered or double-strength glass

Additional Options

  • Window Opening Control Device (WOCD) to prevent falling from a window (factory applied)
  • InsulKor multi-cavity foam-filled frame
  • Nail fin accessory for use in remodeling or new construction applications
  • Factory mulling of twins and triples
  • Additional lock colors to complement any interior color
  • Clear View Screen Mesh
  • Heavy Duty Screen Mesh
  • Custom sizes available

Special Features and Options Spotlight

Series 1800 InsulKor Close Up

Series 1800 InsulKor Technology

InsulKor™ technology is a system of sash and frame enhancements that dramatically improves the performance of Series 1800 windows. Our exclusive InsulKor fiberglass-enriched polyurethane sash reinforcement yields better energy efficiency while maintaining the structural integrity of traditional metal reinforcement.

Series 1800 Special Features Diagram

Series 1800 Special Features

  1. Optional InsulKor multi-cavity foam-filled frame injections.
  2. Super Spacer sealant system (standard with Series 1800 triple-pane glass options).
  3. Triple-pane, R-5 compliant glass.

Series 1800 Windows

The Ellison Series 1800 blends our highest level of craftsmanship and performance with our widest range of premium enhancements and optional features.

Manufacturing Story

Our windows and sliding doors are recognized for their high-quality craftsmanship, innovative engineering and close attention to detail. Learn more about the process used to make them.

The Ellison Warranty

Every Ellison window and patio door is backed by a limited lifetime warranty on vinyl, glass and all working parts. Each product is individually registered with a product identification number, making ordering replacement parts throughout the warranty period easy and efficient.

View Warranty & Support Details

Ellison Product Care

Ellison windows and doors are designed for easy care and maintenance. Click the button below to download Ellison’s window and door care and maintenance guide

Download Guide

Energy Savings

With multiple glass options to increase energy efficiency, there is a glass package to fit any climate need and budget. Visit the Glass section of our site to learn more about available options and energy efficiency.

View Energy Saving Options