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Replacement Window

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SWS’s picture windows are members of the DuraGard XT family of windows and have been engineered to meet today’s tough energy standards as well as being designed for aesthetic appeal. SWS manufactures the DuraGard family to the highest quality for years of worry-free use. All of the DuraGard family to the highest quality for years of worry free use.
All of the DuraGard products are constructed using the finest materials on the market today. SWS chooses to use superior performing components, like Guardian’s ClimaGuard RLE for our low E option. The ClimaGuard RLE low E is technologically advanced to provide superior efficiency while providing natural views. SWS insulates the ClimaGuard low E with Super Spacer®, a true warm edge spacer. Super Spacer is manufactured using an all foam formula which provides a significant energy advantage to metal spacers that conduct cold.

SWS’s DuraGard XT family of windows has been engineered to exceed today’s tough energy standards as well as being designed for aesthetic appeal.  SWS manufactures the DuraGard family to the highest quality to give the consumer years of worry-free use.   All of the DuraGard products are constructed using the finest materials on the market today.

All of our DuraGard products with low E/agron glass exceed Energy Star requirements.   The DuraGard XT family is available in eight new construction or replacement styles.   The DuraGard Xt double hung, manufactured by SWS, has one of the best U-Value ratings in the window market.  Our U-Value for low E, argon gas filled 7/8″ overall airspace is .28.   While that alone is reason enough.  SWS didn’t stop there!  The DuraGard XT line of windows is constructed of the best of the best components for an extreme value-added finished product.     Call today  (866) 416-3916 or use this form

DuraGard windows are made to order, made to fit, and made to last.

DuraGard Picture Window Features

Frame has multiple hollows for strength and energy efficiency

Unique interior glazing leg design hides window fasteners (replacement picture only)
Double wall glazing leg for added strength and durability
All fusion welded frame

Frame design compliments Double Hung frames
7/8″ or 1″ Insulated Glass Decreases thermal energy loss Strong 3 1/4″ design allows for large unit sizes
7/8″ overall glass thickness

About SWS

Specialty Wholesale Supply (SWSS) is the Maki Corp MANUFACTURING DIVISION. SWS is a leading manufacturer of quality vinyl windows, exterior doors, interior doors,  patio doors,custom millwork at the Mill Shop, metal fabrication, screen enclosures, countertops, vinyl railing, vinyl fencing, and trusses.

SWS was founded in 1969. Products can be purchased through MAKI Building Centers in Lunenburg, Gardner, Sterling or directly through the SWS manufacturing complex featuring several manufacturing plants and centrally located in Gardner, Massachusetts.  As a family-owned business, we strive to make your shopping experience unique, informative, and personal.  SWS caters not only to architects, builders, and contractors, but also homeowners in Central New England.

The SWS staff enjoys working with you on your project whether your needs are large or small.     Contact us for more information.     Quote Request.

Helpful Documents

DuraGard XT DH

Window Measuring Instructions

Super Spacer Benefits Handout

Custom Gardner Window Profiles

Measuring Window Openings

Tip -To – Tip

When given a TTT measurement SWS will use the exact width and height dimension furnished, no deductions.   You window will be made that exact size.  Please measure carefully as customer-furnished measurements are the customer’s responsibility.

Measuring by the opening size

Pertains to an existing window frame where sash has been removed but the window frame has been left in place to house the new unit.  SWS when given an opening size dimension we will deduct 1/4″ off  the width and 1/2 ” off the height of dimension to allow room to square up the opening after installation.

Determine united inch

To determine united inch, add the height and the width.  If you have any questions, please do not hesitate to call SWS for answers.    Download replacement window measuring sheet.