Lower Energy Bills with Professional Insulation
Attic Insulation & Blown-in Cellulose Solutions
Improve comfort, reduce energy bills , and stop heat loss with professional attic insulation installed by a local, family-owned company.
Local Insulation Pros Near You
Is Your Attic Costing You Money?
At Greenshield Insulation, we specialize in blown-in attic insulation and ventilation services that keeps your home comfortable and energy-efficient. Our experienced team has over 50 years combined expierence installing insulation in Kalamazoo, MI.
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Why Attic Insulation Matters
Proper insulation helps keep your home warm in winter and cool in summer.
Southwest Michigan’s Trusted Attic Insulation Specialists
With over 50 years of combined experience in residential insulation, Greenshield Insulation is the name homeowners trust for reliable, high-performance attic upgrades. Whether your goal is to cut heating bills, eliminate drafts, or meet energy rebate standards, our team delivers results that last.
From dense-pack cellulose to high-efficiency spray foam, we tailor every attic insulation job to fit your home’s structure, energy profile, and long-term comfort goals. As a local, family-run business, we understand the unique climate demands of Michigan homes — and we know how to insulate them right the first time.
📞 Schedule a Free Attic EvaluationWhat Makes Greenshield the Trusted Choice for Attic Insulation in Southwest Michigan?
Since 2016, Greenshield Insulation has helped hundreds of families in Mattawan, Kalamazoo, and surrounding areas lower energy bills, eliminate drafty rooms, and qualify for valuable energy rebates. As a family-owned business, we treat your home like our own—with clean installs, honest pricing, and expert service.
🔍 Free Attic Evaluations
We inspect your attic's insulation levels, moisture risk, and venting—at no cost to you.
💸 Local Rebates & Tax Credits
Our team helps you unlock up to $1,200 in Consumers Energy + federal incentives.
🛠️ Blown Cellulose Experts
We specialize in high-R cellulose—perfect for boosting attic efficiency affordably.
👷 Family-Owned & Licensed
We're certified, insured, and take pride in every job—no shortcuts, no sub crews.
Attic Insulation Calculator
Estimate how much insulation your attic may need for better comfort and energy efficiency in Southwest Michigan.
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R-Value Insulation Guide
Climate Zone 5 • SW Michigan (Typical Code Targets)
| Area | Typical Minimum R-Value | Notes |
|---|---|---|
|
Attic / Ceiling Unfinished attic space | R-49 | Air seal first for best performance. |
|
Exterior Walls Wood-framed 2×4 / 2×6 | R-20 | Alt common path: R-13 + R-5 continuous. |
|
Mass Walls Concrete / brick / CMU | R-13 | May vary by % of wall above grade. |
|
Floor Over unconditioned space | R-30 | Band/rim joists matter a lot here. |
|
Basement Walls Below grade | R-15 to R-19 | Continuous insulation commonly used. |
|
Crawl Space Walls Vented or unvented | R-15 to R-19 | Best results when sealed + conditioned. |
|
Slab Edge Heated slab (where required) | R-10 | Often for a specified depth at perimeter. |
