Energy-efficient windows and doors


At MI Windows and Doors, we are committed providing our customers with high-quality, energy-efficient products. To do this, we proudly partner with ENERGY STAR® and work to continuously improve our products to meet its increasingly stringent requirements.

A voluntary program established by the EPA in 1992, ENERGY STAR helps businesses and individuals save money and protect the climate by identifying and promoting energy-efficient products and buildings. Products with the ENERGY STAR designation must meet third-party certification based on testing in EPA-recognized labs. Additionally, ENERGY STAR-qualified products are subject to “off-the-shelf” testing at any point throughout the year.

Performance Criteria
Window and doors protect your home and family from the elements. While some windows are better at keeping you warm, others excel at keeping you cool. ENERGY STAR performance criteria is based on ratings certified by the National Fenestration Rating Council (NFRC), and vary for each of the climate zones shown in the map below.


Our products work to put an end to cold drafts and overheated spaces by creating consistent, comfortable interior temperatures. Most MI vinyl products are available as ENERGY STAR-qualified in all regions, and many require no upgrades to achieve the rating. Aluminum products qualify for ENERGY STAR certification in South, South-Central and North-Central regions. For full details on ENERGY STAR ratings, view our product listing.

2012–2020 Tax Credit

By installing ENERGY STAR-certified windows and doors from MI Windows and Doors, you might not only save money on heating and cooling costs but also be eligible for an ENERGY STAR tax credit. The IRS is offering a tax credit of 10% of the cost of a qualified energy-efficient improvement, up to $200 for windows, not including installation for windows and doors installed between January 1, 2012 and December 31, 2020. Visit to learn how you can earn the ENERGY STAR tax credit.

Download our Energy Star Tax Credit Certification Statement for more information.

ENERGY STAR window partner

We are committed to providing high-quality, energy-efficient windows and sliding glass doors, and we proudly partner with ENERGY STAR® to ensure our products meet its increasingly stringent requirements.

Energy Tax Credit

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