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  • "My mother commented that the windows are better than having the money in the bank, and I think that says it all." - Diana Tasnadi, Washington, DC
  • "The windows make my home feel really cozy and warm. I absolutely love pulling up to my house and seeing the windows. I definitely have the best windows on my street!" - Monica Ford, Waldorf, MD
  • "Great work. I already notice a difference in indoor climate." - Suzanne Dee, Manassas, VA
  • "We are extremely pleased with our windows and are already feeling a difference in the warmth of our rooms, and our upstairs particularly." - Daniel Bagnell, Bowie, MD
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Engineered and Built for Maximum Energy Savings

Long Windows combine an enhanced insulated glass package with fully-insulated framing systems to achieve the highest insulation performance across the full-frame - not just measured at center of glass.

Most homeowners find that Long Windows pay for themselves within 10 years of installation.

Double Strength Windows

There are a number of ways to scientifically measure the energy-efficiency of windows. Long Windows are one of the most energy-efficient windows you can purchase, by any of these measures.

R Value

A key factor of energy-efficiency is R value, which measures the thermal insulation capability of a window. The higher the R value, the better the window insulates to keep your home cool in the summer and warm in the winter.

Long Windows have industry-leading R values of 4.0 to 7.25. These are significantly higher than the R values for typical single- or double-pane windows - so advanced that they exceed Energy Star criteria for year 2013.

R-Value

U-Factor

Another factor in energy-efficiency is the U-Factor, which measures how well the product traps heat inside your home. In this case, the lower the value the greater the energy-efficiency of your window.

Long Windows have an industry-leading U-Factor of 0.14. This surpasses the 2009 Energy Star Standards, which recognize a U-Factor of 0.35 as acceptable.

U-Factor

Solar Heat Gain Coeffcient (SHGC)

Yet another factor in energy-efficiency is the SHGC, which measures how well the window blocks solar heat coming inside the house. Again, the lower the value the greater the energy-efficiency of your window.

Long Windows have an industry-leading SHGC of 0.20. This surpasses the 2009 Energy Star Standards, which recognize a SHGC of 0.32 as acceptable.

Solar Heat Gain Coeffcient

UV Transmission

A final factor in energy-efficiency is the transmission of UV light. Long Windows utilize Heat MirrorTM Technology, recognized in Popular Science magazine as one of the top 100 inventions of the last 1,000 years.

Long Windows with Heat Mirror TM Technology block 99.7% of damaging UV Rays into your home. Other windows on the market today allow roughly 50% of damaging UV rays into your home.

The difference is clear if you look at heat mapping photos of Long Windows versus any alternative.

UV Transmission
Infrared Windows

Request a free, no obligation in-home consultation and estimate today or call us at
1-800-417-LONG (5664).

Request A Free No Obligation In-Home Consultation & ESTIMATE
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Long Fence Guarantee

It is highly unlikely that any defects in material and workmanship will arise in the future; however, if a defect does occur, the defective part will be repaired or replaced by Long Fence and Home. We stand behind all the work we do.

John DePaola

Jill Long DePaola

Long Fence and Home is a home improvement and remodeling company serving clients in Maryland, Virginia and Washington, DC. Contact us for a free estimate on your home improvement or remodeling project.

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