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Regency 400 Series

Regency 400 Series replacement windows are expertly crafted to maximize the energy efficiency of your home while creating a sleek modern look. The innovative design features and extra-strong 4-1/2" thick fusion-welded frame with the sash positioned closer to the interior part of the wall for improved thermal protection. against energy loss. Regency 400 Series windows are not available in British Columbia.

Regency 400 Series windows are available in all popular styles: CasementsDouble and Single SliderDouble and Single Hung, Awning and Picture

Product Features

With meticulous attention to every detail, Regency 400 Series merges timeless beauty with best-in-class technology to achieve superior energy efficiency, enduring style, easy upkeep and excellent value

  • Renovation Masterframe 400 Heavy -duty 4-1/2" welded ridged vinyl multi-chamber frame construction
  • IntegraWeld Fusion Welding  Welded sashes with triple weatherstripping for superior insulation
  • Superior Energy Efficient Design Available in 7/8" double-glazed Low-E and argon (standard) and 1-3/8" triple-glazed sealed units with Low-E and argon or Krypton for ultra energy efficiency (optional)
  • Custom Thermal Performance EnergyPlusTM and Solar Shield glass packages available
  • Environmentally Friendly  Designed for superior thermal performance and smaller carbon footprint
  • Designer Preference  Contemporary sash for a modern look

Super Spacer® Non-Metal Spacer System

A key component to a window's energy efficiency is the spacer system, which creates an insulating air space between the panes of glass that serves as a thermal barrier.

Regency 400 Series windows feature the Super Spacer - an ultra-efficient system that combines a structural foam spacer with a seal of hot melt butyl to create a "warm," non-conductive edge. This non-metal design eliminates any metal-to-glass contact, thereby increasing the edge of the glass temperature by more than 16°- resulting in 60% more energy efficiency than a traditional box metal spacer.


The Super Spacer non-metal spacer provides the highest resistance to conduction and eliminates metal-to-glass contact and conduction.

Decorative Window Options


Regency 400 Series windows are available in a full selection of extruded and painted colours to enhance the appearance of your home, both inside and out.

Extruded Colours

Regency 400 Series offers Nordic White as its one fully extruded colour. The colour is formulated throughout the vinyl sashes and masterframe for long-lasting beauty and performance


Standard Painted Colours

For added exterior design options, choose from our 20 standard paint colours as outlined below:


Custom Paint Colours

Have a special colour in mind for the exterior of your windows? Regency windows can be custom painted to match any of the Gentek exterior trim colours, allowing you to achieve a truly upscale appearance for your home. 

Interior Grids

Interior grids add style and balance to the appearance of your windows. All grids are enclosed within the insulated glass unit for easy cleaning.

Grid Patterns

Grid Profiles

V-Grooved Cut Glass

Choose polished V-grooved glass for a subtle touch of elegance.

Window Accessories

Regency 400 Series windows feature a generous selection of jamb extensions, brickmoulds and other accessories for the ideal finished look, as well as installation ease in a variety of applications.

Tools and Resources

In these comprehensive manuals, you will find all of the information needed to fully enjoy and take care of your Gentek vinyl windows. For added protection, Regency windows carry a lifetime limited warranty* - further assurance you have made an excellent selection for your home. An optional glass breakage warranty also is available.

*Please see printed warranty for complete details.


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