Some replacement window dealers exaggerate the benefits of installing modern replacement windows and patio doors. Many of our friends and neighbors living in New Jersey or metropolitan New York neighborhoods have probably seen advertisements promising 100 percent return on investment within a few months or a couple of years.

The truth is replacement windows do increase the resale value of your home, enhance energy efficiency and comfort and lower monthly heating and air conditioning bills. BUT, they won’t pay for themselves in a few months, and any dealer than promises they will is not being totally honest with you.

If you’re thinking about replacing existing home windows, and you want to make sure you maximize your return on investment, remember the choices you make about window style, glass options, frame materials and installation professionals will have a major impact on your window performance and value.

Here’s what you need to know:

#1. Replacement Window Frame Construction Materials

Window frame materials affect insulating performance, durability and appearance. We recommend Fibrex composite frames because they have all the best qualities of vinyl and wood. Fibrex frames:

  • Are lightweight, strong and stable
  • Offer enhanced insulation compared to aluminum or plain vinyl
  • Resist mold, mildew, rust, corrosion and fading
  • Do not require extensive maintenance

#2. Routine Window Maintenance & Cleaning Considerations

Some construction materials – such as Fibrex – significantly reduce maintenance requirements. Lift-out panels and tilt-to-clean sashes make it easier to clean your home’s windows. And, technology that virtually eliminates water spots on glass surfaces reduces the time and energy necessary to keep the view through the glass perfectly clear.

While these features and benefits may not offer monthly savings, they definitely add to their value and overall return on investment because you spend less time and money keeping your windows in perfect operating condition.

#3. Replacement Window Style Selection

Whether you install casement windows, awnings, double-hung or sliders may impact how well your building envelope insulates indoor spaces from extreme temperatures. Styles with fewer moving parts and that limit friction on weather stripping with daily use are the most energy-efficient.

Fixed windows are more efficient than any operable window, and casement replacement windows are almost always more energy-efficient than either vertical or horizontal sliding window styles.

#4. Window Glass Solutions & Factory Applied Coatings

There are many window glass options for homeowners today. Modern, high-performance glass not only boosts insulation values, low-E glass choices can improve light quality, reduce condensation, control heat transfer and protect furniture and fixtures from prematurely aging due to harmful UV ray exposure.

#5. Window Installation

Replacement window performance it directly tied to an installation completed according to manufacturer’s specifications. A less than perfect installation could mean all or part of your warranty is voided, and you don’t get the ongoing savings or healthy return on investment you deserve.

#6. Be Informed: Read the Label

When shopping for replacement windows, take time to read the National Fenestration Rating Council’s (NFRC) window label, and ask the dealer representative to explain any values you don’t understand.

The NFRC label information explains how well a window blocks air, light and moisture from entering through the window. You’ll also get a better idea whether a window is prone to developing condensation by carefully reviewing the performance label.

Consult the Renewal by Andersen of New Jersey & New York Metro Replacement Window Experts

Sadly, some replacement window dealers will tell you anything to convince you to purchase their products. The Renewal by Andersen of New Jersey and New York Metro team prefers to give our customers all the information they need to make a wise decision. Learn more about energy-efficiency ratings today. Fill in the short form on this page to request a brochure or schedule a private consultation by dialing 1-888-826-2451.



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  • The Difference Between Replacement and New Construction Windows!
  • The Different Kinds of Frame Materials and What That Means to Your Windows’ Performance and Longevity!
  • How the Right Glass Can Save You Money on Your Heating & Cooling Bills!
  • The Critical Role Proper Installation Plays in the Performance, Durability and Warranty of Your New Replacement Windows!
  • What Features and Options are Important to You and What Role They Play in Your Ultimate Satisfaction Today, and for as Long As You Live in Your Home!