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New Construction Windows
Jason Huffenberger

Difference Between New Construction Windows & Replacement Windows?

A new home being built with new construction windows.

What Are New Construction Windows?

The windows that are initially installed in a home during construction are known as new construction windows. They are simply the original windows attached to your home. If the windows have any issues i.e., they get damaged or become energy inefficient, the windows are replaced by replacement windows. 



As the name suggests, new construction windows are windows used in new home construction or during a significant home remodeling. The windows fit into the window opening on a wall where there’s no trim or siding.

modern kitchen windows.

What Are Replacement Windows?

Replacement windows replace current windows in a home. However, the old window isn’t entirely removed.


Generally, only the sash (frame holding window glass) and other few parts are removed since most of the original window is attached to a home’s wall during construction.

A sash and frame of a window.

As a result, replacement windows are generally smaller than original windows (i.e. new construction windows). The windows are specifically designed to fit in the opening that exists. In many cases, there is a need for little to no wall alteration.

Preview Construction: Leading New Construction Windows and Replacement Windows Installer in Dallas, TX

A kitchen with a wall of windows letting in the Texas sunshine.

Preview Construction handles both new construction windows and replacement windows installation. Since 1991, we have sold and installed many windows in brand new homes and retrofitted windows. 


While window installation may appear to be a nice DIY job, you need window installation experts to get the job done right. A poorly installed window is a security risk. Your home is also bound to face weather damage if water is getting in via poorly installed windows or seals. Preview Construction understands all there is to window installation, including the right installation time.

Our Window Installation Process

When should you install new construction windows? 


We advise homeowners to get window work done before a residing job. If you are installing new replacement windows, do it before getting new siding. In fact, both jobs could be handled at the same time. 


New construction windows feature nail fins that attach to the window perimeter and make it possible for the window to be nailed against the exterior of the home. Nail fins are simply metal frames (made from steel or aluminum) that hold a window in place and prevent window movement.

An example of a nailing fin around a new construction window.

FAQs About New Construction Windows and Replacement Windows

  • Can You Buy New Construction Windows for a Window Replacement Job?

    YES! However, for installation to be done, the outer case molding and siding portions need to be removed for the nail fins to be attached to the sheathing. This complex window installation job should be left to professionals only.


    Some of the pros you enjoy from new construction window installation include larger views. Replacement windows shrink the view by a few inches (2-3) on either side. Other benefits include more durability and weatherproofing benefits, given new construction windows are completely weather-tight provided they are installed correctly. 


  • Which Windows are Better? New Construction Vs. Replacement Windows

    The choice between new construction windows and replacement windows can only be informed after examining the benefits and cons of both types of windows.


    New Construction Windows vs Replacement Windows: Pros and Cons


    I. Energy Efficiency

    New construction windows tend to be more energy-efficient than replacement windows because they are originally designed for the space in question. They tend to fit better and come with better insulation than replacement windows. This benefit translates to lower energy (heating/cooling) bills.


    II. Quality

    A new construction window tends to be made of better (higher-quality) materials than a replacement window.


    III. Curb Appeal 

    New construction windows come in more color and style varieties. They can also be customized, making them better for curb appeal. Replacement windows tend to be basic.


    IV. Resale Value

    The ROI of new construction windows is higher since prospective home buyers view the windows as valuable investments.


    V. Cost

    Replacement windows are cheaper than new construction windows. However, new construction windows justify pricing in the long term.


    VI. Warranty

    Given their quality, new construction windows have longer warranties than replacement windows. It is possible to get a limited lifetime warranty with a new construction window, while replacement windows come with warranties spanning a few years. 


    VII. Maintenance

    The higher quality of new construction windows translates to less maintenance. Unlike replacement windows, you don’t have to worry about repainting or other tedious and expensive maintenance.


    VIII. Variety

    New construction windows come with more variety than replacement windows. They are sold in more sizes, styles, and colors. You also enjoy more customization control than replacement windows.


    IX. Safety and Security

    In regards to safety and security, new construction windows are better than replacement windows. Since they are of a higher quality and last longer, they can withstand extreme weather and intruders better.


    X. Ease of Installation

    It’s easier to install new construction windows than replacement windows since the widows are usually installed during construction. Replacement windows installation may require some modification. It can also be tedious when exterior home elements like siding are in the way.


    XI. Noise Levels

    New construction windows offer better noise regulation. They are quieter, allowing a more comfortable indoor environment.


    In summary, while new construction windows will cost more, they are generally better than replacement windows. However, they must be installed at the right time, and installation should be done by experts like Preview Construction!


    Ready to learn more about new construction window benefits? Claim your FREE educational phone consultation NOW!

A new home kitchen with black framed windows.

How Do I Choose the Type of Replacement Windows to Buy?

1. Find a reputable window manufacturer: You need to consider a renowned replacement window brand first. Buying windows from a reputable window manufacturer like Andersen ensures you get high-quality windows. 


2. Choose style, frame, etc.: Once you have a good window manufacturer in mind, consider the window style and other factors like preferred frame material, glass package, and cost. The choice should be guided by factors like durability, maintenance, personal tastes, etc. Vinyl windows are popular for their energy efficiency, variety, and pricing. Windows also come in many styles. Do you want casement windows, side pocket windows, bay windows, or double-hung windows?


3. Consider size: Your window size should be dictated by the available space. Most windows are sold in 6, 8, or 10 inches as the standard size. If you need larger windows, you should consider custom options. 

A family room with French style windows.

4. Number of windows: You can get single or multiple windows depending on your needs.


5. Window utility: It also makes sense to consider how often you will be using your windows. Replacement windows used often should be made using high-quality materials. They should also be easy to use (open/close).


6. Cost: This is the last and most important consideration. How much money can you spare? As discussed above, new construction windows cost more than replacement windows. Installation costs should also be factored before making a final decision.


To avoid getting confused, work with a Dallas replacement window expert like Preview Construction. We can provide solutions that match your preferences and budget.


Andersen E Series Mull in place large unit finish picture with zip tape.

Do You Need an Insulated Replacement Window?

Insulation is critical for windows to keep the desired indoor temperature. During hot days, insulated windows keep cold air from escaping the interior. During cold days, insulation keeps warm air indoors. This prevents the HVAC system from overworking, which in turn results in energy savings.



Insulation also offers noise control benefits. Windows with thicker panes double-pane or triple pane glass are bound to offer better noise reduction.


For more information on New Construction Windows or Replacement windows in Dallas, TX, CALL Preview Construction: 1-214-348-3836. You can also schedule a consultation with Preview Construction Co-owner- Jason who is passionate about window, door, and siding installation.

Are you looking for a building permit office for your area?

City or County Contact Details
City of Dallas Permits Oak Cliff Municipal Center 320 E. Jefferson Blvd., Room 118 Dallas, TX 75203 Phone: 1-214-948-4480
Plano Building Inspection 1520 K Ave, Plano, TX 75074 Phone: 1-972-941-7140
McKinney Building Inspections 221 N. Tennessee St. McKinney, TX 75069 Phone: 1-972-547-7400
City of Allen Building and Permitting Allen City Hall, First Floor 305 Century Parkway Allen, TX 75013 Phone: 1-214-509-4130
City of Grapevine Building Inspection Department 200 S. Main Street Grapevine, TX 76051 Phone: 1-817-410-3165
City of Lucas Development Services 665 Country Club Road, Lucas, TX 75002-7651 Phone: 1-214-644-0779
City of Wylie Building Inspections 300 Country Club Rd, Wylie, TX 75098 Phone: 1-972-516-6420
Flower Mound Building Inspections 2121 Cross Timbers Road Flower Mound, TX 75028 Phone: 1-972-874-6355
City of Health Building Inspections 200 Laurence Dr, Heath, TX 75032 Phone: 972-771-6228
Frisco Building Inspections Division 6101 Frisco Square Boulevard 3rd Floor Frisco, TX 75034-3239 Phone: 1-972-292-5301
Town of Little Elm Building Permits 100 W. Eldorado Parkway Little Elm, TX 75068 Phone: 1-214-975-0470
Collin County Administration Building 2300 Bloomdale Rd. McKinney, TX 75071 Phone: 1-972-548-4100
Dallas County Building Applications and Permits 2300 Bloomdale Rd. McKinney, TX 75071 Phone: 1-972-548-4100
Rockwell County Applications and Permits 101 E. Rusk St. Rockwall TX, 75087 Phone: 1-972-204-7000
Denton County Applications and Permits 1 Courthouse Drive Denton, TX 76208 Phone: 940-349-2990
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