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*The Angi rating for Energy Efficiency Auditing companies in Concord, MI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.

*The HomeAdvisor rating for Energy Efficiency Auditing companies in Concord, MI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.

Last update on October 10, 2026

Top-Rated Energy efficiency auditors in Concord - Updated Nov 2026

Avatar for Stellux Management, LLC
Stellux Management, LLC
New to Angi
Energy Audit - For Business

Serving Concord, MI and surrounding areas

In business since 2013

Free estimates

Stellux Management is a Michigan-based ESCO (Energy Savings Company) specializing in LED lighting and controls. We are also a DTE Energy Designated Trade Ally and a Registered Trade Ally for Consumers Energy. We have completed over 115 major LED lighting projects saving our clients a total of 3,000,000 kWh of energy, while earning hundreds of thousands of dollars in incentives and rebates. Our team of LED experts is capable and ready to help guide your company through the LED conversion process. We strive to help you raise the level of awareness for all employees by improving the lighting environment around them. By switching to LED, you will see immediate results in your electric energy bill through the reduction of lighting kWh usage by 50% -80%... saving you money!

165w LED Linear High Bays
100w LED Area Parking Lot Pole Lights
50w LED 2x4 Flat Panels
50w LED Cleaning Flood Lights
5.5w LED Movie Theatre Wall Sconce

+12

Response time20 mins
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Avatar for Greenshield Insulation
Greenshield Insulation
New to Angi
Energy Audit - For BusinessHome Energy Audit

Serving Concord, MI and surrounding areas

In business since 2016

Free estimates

Emergency services offered

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

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Energy Efficiency Auditing FAQs, answered by experts

Hawaii is currently rated as the most expensive state for utilities. How much are utilities for a house in Hawaii? With electricity costs in Hawaii totaling nearly 42 cents per kilowatt-hour, residents are paying more to run their households than any other residents. Electricity costs in Hawaii are so high, mostly due to the fact that most of the electricity available to residents is produced using oil that must be shipped in from other places.

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.

Provide utility bills and clear access to all areas of the home, including the attic and basement.

Yes, Tesla Powerwalls are worth the upfront costs, as you can recoup your investment within six to eight years. Plus, they provide peace of mind that you'll have power during a power outage, and, depending on the system you install, you can become energy-independent. While they may be more expensive than other solar power systems, they offer higher battery capacity and lifespan.

Leaving vents open but closing doors in unused rooms will probably not save money on your energy bill. Closed doors prevent the natural flow of air throughout the home, which could reduce the efficiency of the overall HVAC system. They could also restrict airflow into and through the return vents, making the HVAC system less efficient.

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