Experience Unmatched Energy Efficiency and Low-Maintenance Style with ULTRA R-5 Windows

More than thirty years of research and development are built into every full welded Ultra 5 WeldTuff replacement window. In fact, the Ultra R-5 exceeds NFRC and ENERGY STAR® requirements. Not only that, it’s a great looking window that will save energy all year long with its Ultra-low .22 U-VALUE.

More than thirty years of research and development are built into every full welded Ultra 5 WeldTuff... more...
Ultra R-5 Weld-Tuff

Ultra R-5 Weld-Tuff


  • Heavy Walled Construction
  • Deeply Pocketed Head
  • 7/8” UltraFlect Glass Package
  • Dual Tilt In Sashes
  • Cellular Foam Wrap
  • Die Cast Cam Lock and Keeper
  • Interlocking Meeting Rail
  • Triple Weather-seal System
  • Flexible Bulb Seal
  • Positive Sloped Sill
  • Fusion Welded Frame and Sash
  • Warm Edge Spacer Technology
  • Night Vent Latch
  • Low Profile Routed-in Tilt Latches
  • Fiberglass Filled Main Frame and Sash
  • Entergy® Composite Reinforcement
  • Lifetime Stainless Steel Adjustable Constant Force Balance System
  • Fully Welded Double Wall Interior Dam Leg
  • Storm Interlock
  • Lifetime-Plus Warranty
  • Exclusive FlexScreen Available
  • .18 U-Value Available

Maximize Energy Savings with Cutting-Edge Window Technology

WELD-TUFF windows and doors deliver energy efficiency and cost savings, meeting and exceeding ENERGY STAR requirements. ENERGY STAR certified windows and doors, using NFRC rated and ENERGY STAR certified glass, can result in hundreds to thousands of dollars in energy bill savings each year. Our windows and doors feature the most thermally-efficient glass packages, including argon gas filling, warm edge Duralite spacers, and low-E glass, reflecting radiant heat in winter and blocking harmful UV rays in summer.

energyStar goodHousekeeping earthwise
WELD-TUFF Warranty

WELD-TUFF windows and doors come with a top-notch warranty in the industry. Our vinyl windows and doors come with a transferable Limited Lifetime Manufacturer's Warranty for ultimate peace of mind. Our commitment to quality is reflected in our pursuit of independent certifications and awards, proving that we meet industry standards and are dedicated to excellence. Choose WELD-TUFF for a lifetime of worry-free performance.


Weld-Tuff Window Styles

Some of the styles we offer include Double Hung windows, Horizontal Sliders, Custom Shapes, Casement Windows, Awning Windows, Picture windows, and Bay and Bow windows. Each of these styles offers unique benefits and features, making it easy to find the perfect match for your home.

Double Hung Windows

Double Hung windows are a popular choice, providing a classic look and easy ventilation. Both sashes are vertically adjustable and interlock for improved energy efficiency. Cleaning is made easy with the tilt-in feature.

Casement Windows

Casement windows are a hinged design that opens outward with a fold-in crank handle for easy operation. They offer versatile ventilation options, opening up to 90 degrees or less for cleaning and air flow. The lever lock ensures an airtight seal for increased energy efficiency.

Awning Windows

Awning windows are hinged at the top and open outward, providing ventilation while keeping rain out. They're often placed above or below other windows for added light and air flow. With a sleek design, awning windows are a popular choice for modern or contemporary homes.

Bay Windows

Bay windows add natural light and space to any room with their projecting design, featuring an insulated head and seat board with a birch finish. Choose from double-hung, casement, or picture windows with a 30- or 45-degree projection. For a more curved, classical look, consider a Bow window with a shallower 10- or 15-degree projection using casement or picture windows.

Bow Window

Bow Window is a curved style of window that projects outwards from the wall, creating a rounded appearance. It's made up of multiple smaller windows, typically casement or picture windows, arranged in a curved formation to add natural light and stylish touch to a room. The shallow projection of a Bow Window provides a soft, elegant look.

Picture Window

Picture windows are large, fixed windows that provide an unobstructed view and maximize natural light. They're a great option for showcasing a beautiful view or creating an open and airy feel in a room. Picture windows are available in various sizes and shapes to fit any space and design style.

Horizontal Sliders

Horizontal Slider windows consist of two or three adjustable sashes that slide right or left for ventilation. With a smooth glide track and sleek frame, they provide unobstructed views and improved sunlight exposure. Ideal for areas with limited vertical space.

Custom Shaped Windows

Custom Shaped Windows are windows that are designed and manufactured in unique shapes to fit specific architectural or design needs. These shapes can include half rounds, quarter rounds, circles, hexagons, and many others. Custom shaped windows can add a unique and personalized touch to a home and provide an opportunity to incorporate unique shapes into a design scheme. They can also provide additional natural light and ventilation, as well as enhance the overall aesthetic appeal of a home.

Available in Replacement or New Construction

Ask About Our Seasonal Deals