*The Angi rating for Energy Efficiency Auditing companies in Mount Prospect, IL 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 Mount Prospect, IL 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 May 13, 2025
We provide customers the ability to assess their energy use and reduce their electricity costs by conducting home energy audits and making recommendations that will increase energy efficiency.
We provide customers the ability to assess their energy use and reduce their electricity costs by conducting home energy audits and making recommendations that will increase energy efficiency.
Windfree is a full-service design engineering solar operation- we build dreams for everyone’s clean renewable future. We are committed to a quality installation and to ensuring total satisfaction with our products and service. We are behind you every step of the way, assisting in all stages of the installation, and we provide a contractor warranty on all projects.
Windfree is a full-service design engineering solar operation- we build dreams for everyone’s clean renewable future. We are committed to a quality installation and to ensuring total satisfaction with our products and service. We are behind you every step of the way, assisting in all stages of the installation, and we provide a contractor warranty on all projects.
TCL Electrical and Lighting is a Full Service Lighting and Electrical Maintenance Contractor offering Design, Installation and Retrofits for your Commercial Projects
TCL Electrical and Lighting is a Full Service Lighting and Electrical Maintenance Contractor offering Design, Installation and Retrofits for your Commercial Projects
Whole Property Services provides Property Inspections, Energy Audits, Radon Detection and Mold Testing for Residential and Commercial properties throughout the Chicagoland area.
Whole Property Services provides Property Inspections, Energy Audits, Radon Detection and Mold Testing for Residential and Commercial properties throughout the Chicagoland area.
We provide traditional pre-purchase home and building inspections with an emphasis on energy and moisture related issues or concerns. From the high rise studio condo to large multi-family or commercial buildings, we have significant experience to better help you understand the ins and outs of your future purchase or existing property.
"Very thorough inspection and detailed report."
MOLLY M on February 2018
We provide traditional pre-purchase home and building inspections with an emphasis on energy and moisture related issues or concerns. From the high rise studio condo to large multi-family or commercial buildings, we have significant experience to better help you understand the ins and outs of your future purchase or existing property.
"Very thorough inspection and detailed report."
MOLLY M on February 2018
Solar Wolf is a full service solar company with a great reputation and an old world belief to our customers. To under-promise and over-deliver, period. We have 18 years experience in construction, remodeling, roofing, solar water heaters, solar pv systems, battery back-up systems and much more. See what Solar Wolf Energy can do for you!
Solar Wolf is a full service solar company with a great reputation and an old world belief to our customers. To under-promise and over-deliver, period. We have 18 years experience in construction, remodeling, roofing, solar water heaters, solar pv systems, battery back-up systems and much more. See what Solar Wolf Energy can do for you!
We are distributors of LED & Fluorescent Light Products we supply to Businesses, Contractor's, We do Large quantities and also small quantities.
We are distributors of LED & Fluorescent Light Products we supply to Businesses, Contractor's, We do Large quantities and also small quantities.
Synergy is a social enterprise general contracting firm providing quality remodeling and new construction services for residential and commercial clients.
Synergy is a social enterprise general contracting firm providing quality remodeling and new construction services for residential and commercial clients.
WindSoleil offers affordable Solar Panel and Wind Turbine Installations for both residential and commercial properties. We handle all the permitting, equipment, installation, rebates, incentives, etc ourselves so you the customer do not have to worry about anything. We also have payment plan options available for customers to help get them started with renewable energy.
WindSoleil offers affordable Solar Panel and Wind Turbine Installations for both residential and commercial properties. We handle all the permitting, equipment, installation, rebates, incentives, etc ourselves so you the customer do not have to worry about anything. We also have payment plan options available for customers to help get them started with renewable energy.
We been serving Chicago Land area since 1989, We Service any of your Heating, Air-Conditioners, needs with a professional, fast, honest, and a smiling face....
We been serving Chicago Land area since 1989, We Service any of your Heating, Air-Conditioners, needs with a professional, fast, honest, and a smiling face....
An energy audit costs about $420 on average, ranging from $100 to $2,250, depending on the size of your home, property, location, and the tests the auditor needs to perform. Keep in mind that the 2022 Inflation Reduction Act’s Energy Efficient Home Improvement credit covers up to $150 of home energy audit costs. Common energy audit tests include:
Blower door test: $350
Duct testing: $100
HERS test: $375
HERS certification: $200
Infrared imaging: $200
To find a reputable energy auditor, find a local company that offers energy audit services. Research the company’s reviews, methods, and certifications to find a reliable professional in your area. The most reputable energy audit companies are HEP-certified by the Building Performance Institute (BPI). Be sure to check our state licensing tool to review the local energy auditor guidelines to ensure you’re hiring a certified professional.
The difference between an energy auditor and a home inspector is primarily in the purpose of the inspection. The energy auditor conducts tests in your home to determine the energy efficiency levels in areas like windows, insulation, and doorways. The auditor then makes recommendations for ways to improve a home’s energy efficiency.
A home inspector examines various structures of your home to determine that everything is up to code and gauge the condition of features like the roof, foundation, HVAC, and electrical. The home inspector reports on the overall home and makes repair recommendations.
Typically, a local home energy auditor is responsible for performing energy audits. A home energy auditor will conduct one of three energy audits designed by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) to determine the energy efficiency of your home. The auditor often provides analysis that can help guide changes and improvements to your home for better energy efficiency, giving recommendations as necessary.
The three levels of home energy audits include:
Level 1: Review of your energy bills and home for signs of energy inefficiency and areas for improvement. The average cost range is $0.08 to $0.12 per square foot.
Level 2: A level 2 ASHRAE energy audit costs $0.12 and $0.35 per square foot. In-depth analysis of your energy usage and provides a report of cost-saving changes.
Level 3: Comprehensive analysis and detailed recommendations for ways to improve your home’s energy efficiency. A level 3 audit costs about $0.36 to $0.50 per square foot.