Window Replacement Rebates

PLC Window Replacement Handout (PDF)

Window Weatherization

One of your home’s most attractive features are windows. Windows provide day lighting, ventilation and solar heating in the winter. Installing high-efficiency windows in your home will:

  • increase your household comfort
  • reduce condensation
  • protect the interior of your home from sun damage
  • decrease drafts and air leaks, which contributes to higher energy bills

PenLight’s Window Replacement Rebate

PenLight offers a rebate for Window Replacement for electrically heated homes. This rebate offers $6 per square foot, up to $1,000 for qualifying homes.

To qualify for this rebate:

  • Pre-existing Windows must be
    • Single Pane, 
    • Single Pane with Storms, or
    • Double Pane with Metal Frame
  • Replacement windows must have a National Fenestration Rating Council (NFRC) rated u-value of 0.30 or below and 0.35 or below for Patio Doors.

Using a professional will help ensure that your home is receiving the proper product and installation it needs to maximize energy efficiency.

About Windows

Energy efficient windows keep homes warmer in the winter and cooler in the summer as well as provide natural daylight and views. Replacing inefficient windows in your home will increase the level of comfort, protect the home’s interior and furnishings and most importantly, provide energy savings.  

Comfort.  Efficient window installation will reduce the undesirable heat gain and loss to allow for a comfortable living temperature.

Protect Home Interior. Advanced technologies in efficient windows will help prevent damage from sunlight and condensation caused from extreme temperatures.

Energy Savings. Windows are an essential piece of your home's thermal shell. By eliminating inefficient windows, less energy escapes from your home, lowering utility expenses.

Buyer's Guide to Windows

While looking at efficient windows, consider home and window design as well as efficiency values. Size, shape, material and design all contribute to the overall benefit of window replacement in your home. It is important to consult a professional to see what the best fit is for your home.

Here are some ways to identify a window's level of efficiency:

  • U-value or U-factor measures the rate of heat transfer and tells you how well the window insulates. The lower the U-factor, the better the window insulates.
  • Solar Heat Gain Coefficient (SHGC) measures the fraction of solar energy transmitted and tells you how well the product blocks heat caused by sunlight. The lower the SHGC, the less solar heat the window transmits.
  • Visible Transmittance (VT) measures the amount of light the window lets through. The higher the VT, the more light you see.
  • Air Leakage (AL) measures the rate at which air passes through joints in the window. AL is measured in cubic feet of air passing through one square foot of window area per minute. The lower the AL value, the less air leakage.
  • Condensation Resistance measures how well the window resists water build-up. The higher the condensation resistance factor, the less build-up the window allows.

Energy Efficiency Values

For more information visit Efficient Windows Collaborative

Frequently Asked Questions

What is the NFRC?

The National Fenestration Rating Council (NFRC) tests, certifies and labels windows, doors and skylights based on their energy performance ratings. The NFRC label provides a reliable way to determine a window’s energy properties to compare products.

What factors contribute to the u-value?

The energy performance measured by the NFRC for windows is called the u-factor or u-value. The u-value rates the entire window's performance, including the number of layers of glass, glazing material type and the thermal resistance of the frame and spacer material.

How do I find out more about ENERGY STAR windows?

Click Here to find information on the savings in ENERGY STAR windows.

To pre-qualify for this rebate, please call (253) 857-5950 or email our energy specialist.

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