MI Windows: products and EPD coverage snapshot
Windows and doors get specified fast when the paperwork is easy to trust. If a product lacks an Environmental Product Declaration, many project teams default to conservative carbon assumptions, which quietly nudges purchases toward brands that do publish EPDs. Here is where MI Windows and Doors stands today and how to turn that into spec-winning momentum.
Who MI Windows and Doors serves
MI Windows and Doors focuses on residential openings. The core lineup spans vinyl windows for new construction and replacement, plus sliding patio doors. Think single hung, double hung, casement, awning, sliders, and picture units for single family and multifamily projects.
Product lineup at a glance
Categories are tight and deep rather than sprawling. Expect two primary categories (windows and patio doors) with dozens of distinct SKUs once sizes, glazing packages, and hardware options are counted. That concentration is commercially powerful because it lets one well crafted EPD cover meaningful revenue.
EPD coverage today
As of December 18, 2025, we could not locate publicly listed, product‑specific EPDs for MI Windows and Doors in major U.S. operator registries such as UL, SCS Global Services, ASTM, or Smart EPD. If MI publishes EPDs in a brand family site or distributor portal that is not broadly indexed, they were not readily discoverable. That usually means specifiers must use generic or industry‑average factors, which can add a carbon penalty in bid scoring on projects that prefer product‑specific declarations.
Why that gap matters on bids
LEED v5 project teams and many corporate owners increasingly request product‑specific EPDs for envelope packages. When two functionally similar windows compete, the one with a verified declaration often becomes the safe pick because it protects the model’s whole‑building carbon accounting. No one wants surprises during design development.
Competitors MI meets most often
In residential work MI frequently runs into Andersen, Pella, JELD‑WEN, Simonton, and regional vinyl specialists. On mixed‑use or light commercial edges of a project, aluminum storefront and curtain wall packages from Kawneer or YKK AP also shape the opening schedule. Several of these manufacturers publish product‑specific or product‑line EPDs that are easy for specifiers to cite. For example, Andersen has third‑party verified window EPD coverage in circulation, and Kawneer and YKK AP maintain current EPDs across multiple facade systems. The playing field is not empty.
A likely bestseller without an EPD
A vinyl double‑hung new‑construction window is often a volume driver in MI’s range. Without a visible EPD, it may be sidelined on LEED‑targeted multifamily projects in favor of a comparable unit from a brand with a published declaration. That swap can happen quietly at the takeoff stage, long before price discussions reach the surface.
Fastest path to close the gap
Treat the first EPD as a beachhead. Start with the highest‑volume vinyl double‑hung configuration and a sliding patio door. Pick a recent full production year for data, define a clear declared unit, then capture common options through scenario modeling rather than spinning up separate declarations for every minor variant. A strong LCA partner will handle the heavy data collection across plants and suppliers so engineering and operations do not get stuck in spreadsheet jail.
Picking the right PCR and operator
The product category rule is the rulebook of Monopoly. Ignore it and the game falls apart. Mirror what leading competitors use where appropriate, confirm current validity windows, and choose a program operator your customers recognize. Operator agnostic teams can route to Smart EPD in the U.S. or IBU in Europe as needed while keeping timelines tight.
What to prioritize next
After the first two declarations land, extend coverage to a replacement double‑hung and a casement or slider. That set usually blankets the majority of sales volume with minimal duplication. Marketing can then arm reps with clear talking points on EPD scope and plant applicability, and estimating can plug numbers into submittals without rework. It’s a fast lift for meaningful specability.
Bottom line
MI Windows and Doors is a focused residential openings maker with SKUs in the dozens and a brand that already wins on availability and service. Publishing a small, high‑impact EPD set would remove a preventable barrier on EPD‑aware projects and keep competitive alternates from edging ahead by default. The cost of getting there is often dwarfed by even one mid‑sized multifamily win, which teams sometimes don’t see because those projects never even call back. Done right, enviromental paperwork becomes a sales accelerant, not a tax.
Frequently Asked Questions
Does MI Windows and Doors publish product-specific EPDs today?
As of December 18, 2025, we did not find publicly listed MI-branded EPDs in major U.S. program operator registries. If they exist behind customer portals, they were not readily discoverable.
How many MI product categories would an initial EPD set need to cover?
Two primary categories typically cover most volume: vinyl windows and sliding patio doors. Start with a top-selling double-hung and a patio door, then expand to a replacement window and a casement or slider.
Which competitors commonly publish EPDs in this space?
Residential brands like Andersen often have product-line EPDs available, and commercial-adjacent suppliers such as Kawneer and YKK AP maintain current declarations across multiple facade systems.
Will older but valid EPDs hurt sales compared to a newer competitor document?
If the EPD is still within its validity window, most buyers accept it. Risk only rises as expiry nears within a few months, when project teams might ask for renewal timing.
About the Author
Walker Ryan is a climate-tech entrepreneur focused on driving industrial decarbonization through better data. As the founder and CEO of Parq, he helps manufacturers generate high-quality, third-party–verified carbon disclosures at scale—accelerating a traditionally slow and expensive process. Before starting Parq, Walker led over $200 million in sustainability-focused investments as VP of Strategy & Growth at ReStream Solutions, following earlier experience in investment banking at Deutsche Bank. He brings a rare mix of capital markets expertise and hands-on sustainability knowledge to tackling the infrastructure of industrial emissions.
