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Avatar for USA Insulation of Grand Rapids
USA Insulation of Grand Rapids
4.0(
113
)

Serving Walker, MI and surrounding areas

Approved

In business since 1977

Free estimates

Warranties offered

"The workers were very professional. They were here on time and worked diligently. There was a misunderstanding on some areas to do and they returned to do the extra areas. I would highly recommend this company."
Our Work
Our Work
Our Work
Our Work
Attic Insulation

+6

Response time2 hrs
Response rate85%
21 neighbors recently requested a quote
Double Check Inspect
3.8(
26
)

Serving Walker, MI and surrounding areas

In business since 2000

Free estimates

Credit card accepted

"My first impression of Justin was over the phone. He was clear about what he does, very personable and just seemed to be very real and honest. He came out and seemed happy to answer all of my questions about his findings. He also gave me quick-fix and long-term solutions to each and every problem that he found with my home. He was patient, kind and thorough and I would highly recommend him to any friends and family that ever were in need of a home inspection."
Response time3 hrs
Recommended by80%of homeowners
Avatar for Greenshield Insulation
Greenshield Insulation
New to Angi

Serving Walker, MI and surrounding areas

In business since 2016

Free estimates

Greenshield Insulation is a family-owned and operated company proudly serving Mattawan and surrounding areas within a 40-mile radius since 2016. We specialize in high-quality residential and light commercial insulation services, including spray foam (open and closed cell), blown-in cellulose, insulation removals, attic and sidewall retrofits, and ventilation solutions. With over 50 years of combined experience, we’re SPF-certified, licensed, and insured—bringing knowledge, professionalism, and attention to detail to every project. Our team helps homeowners lower energy bills, improve comfort, and qualify for available rebates and tax credits. We offer free estimates and honest guidance to help you choose the best insulation for your home or building. Serving Kalamazoo, Portage, Paw Paw, Battle Creek, and more.

Attic Insulation Experts
Attic Insulation Experts
Attic Insulation Experts
Attic Insulation Experts
Attic Insulation Experts

+11

Energy Efficiency Auditing questions, answered by experts

Window AC units use a fair amount of electricity, but significantly less than central AC systems. Because they are more energy-efficient for cooling individual rooms or small spaces, their usage is comparatively low. On average, a window AC unit consumes between 500 and 1,400 watts, while a central AC system uses over 3,500 watts—meaning a window unit uses about one-third of the energy. This typically translates to a monthly running cost of $15 to $40, although this can vary depending on external factors.

Homeowners may qualify for an HVAC tax credit if they install an ENERGY STAR®-certified HVAC system that exceeds the energy efficiency minimum standards:

  • Split-System AC: 16 SEER2

  • Packaged AC: 15.2 SEER2 and 11.5 EER2

  • Ducted Split Heat Pump: 15.2 SEER2, 7.8 HSPF2, and 11.7 EER2 

  • Packaged Heat Pump: 15.2 SEER2, 7.2 HSPF2, and 10.6 EER2

  • Mini-Split System: 16 SEER2, 9 HSPF2, and 12 EER2

You can claim up to 30% of the cost of the job, subject to maximums.

Yes, these services often increase home value by preventing moisture-related issues and enhancing the usable space in basements or crawlspaces.

STC (Sound Transmission Class) is a rating that describes how well a building material or assembly blocks airborne sound. A higher STC rating means less noise will pass through the material, providing better sound reduction. This rating system applies to various building components, including windows, doors, flooring, drywall, and insulation.

For context, a typical single-pane window has an STC rating of around 25 (where normal conversations are audible), while a well-sealed, double-pane window can exceed STC 45 (blocking loud speech and most music). It is important to note that for some products, like soundproofing drywall, the STC rating refers to the entire wall system, not just the individual panel.

Additionally, STC ratings are most effective for measuring sound reduction at mid-to-high frequencies, such as human speech, and may not accurately reflect how well a material blocks low-frequency sounds like bass music or thunder. Because of these factors, it is recommended to consult a professional to determine the right STC-rated materials for your specific soundproofing needs.

While many states require all new construction to undergo blower door tests, it’s not a requirement for existing homes. But in both cases, a blower test helps confirm that the contractor has sealed the exterior, that the type of ductwork installed is functioning properly, and that your home is as efficient as possible.

The Walker, MI homeowners’ guide to energy efficiency auditing services

From average costs to expert advice, get all the answers you need to get your job done.