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    Verified energy efficiency auditing services reviews

Find Energy efficiency auditors in Deerfield

Avatar for ARC Insulation, Inc.

ARC Insulation, Inc.

4.91(
43
)
Approved Pro

ARC Insulation, Inc.

4.91(
43
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1993 years of experience

ARC Insulation, has been insulating homes in the Chicagoland area for over 27 years. Our staff of friendly professional Energy Auditors can assess your home and provide you with a free energy consultation offering the best most cost-effective solutions customized for your home and budget. Our mission is to help our customers make their homes more comfortable, safe and energy efficient. Because every home is unique, ARC Insulation specializes in all types of safe and efficient insulation, Cellulose, Spray Foam and Fiberglass. We also offer services Energy Audits, New Construction Modeling, Energy Consulting and Mold Remediation. A home energy upgrade costs less than you think. Stop wasting money and start saving on your home energy costs year-round! Call ARC Insulation today.

"X"

Kenneth J on April 2024

ARC Insulation, has been insulating homes in the Chicagoland area for over 27 years. Our staff of friendly professional Energy Auditors can assess your home and provide you with a free energy consultation offering the best most cost-effective solutions customized for your home and budget. Our mission is to help our customers make their homes more comfortable, safe and energy efficient. Because every home is unique, ARC Insulation specializes in all types of safe and efficient insulation, Cellulose, Spray Foam and Fiberglass. We also offer services Energy Audits, New Construction Modeling, Energy Consulting and Mold Remediation. A home energy upgrade costs less than you think. Stop wasting money and start saving on your home energy costs year-round! Call ARC Insulation today.

"X"

Kenneth J on April 2024


Avatar for Perma-Seal Basement Systems

Perma-Seal Basement Systems

4.55(
1,156
)
Approved Pro

Perma-Seal Basement Systems

4.55(
1,156
)
Approved Pro
Customers say: Super punctual
1979 years of experience
Free onsite estimate

Perma-Seal specializes in protecting the value of your home backed by 45 years of serving the Chicagoland and NW Indiana areas. Our basement waterproofing stops leaks and flooding, our foundation repairs fix settling and bowed walls, and our crawl space solutions control humidity and improve air quality. Our concrete lifting and leveling service offers a reliable, quick, and highly effective way to repair your sunken, cracked driveway, patio, pool deck, or sidewalk for a fraction of the cost of replacement. Additionally, we provide yard drainage solutions, sewer and plumbing services, and home comfort solutions such as air sealing, and insulation to ensure your home remains in top condition. What sets us apart? Our commitment to superior customer service and our solid warranty. Any product or work covered by our warranty is serviced free of charge for the entire warranty period. Choose Perma-Seal for reliable, quality solutions to keep your home safe and comfortable.

"Jose and the team did a great job. Very professional and communicative. We're happy with the result and would recommend them."

ELAINE O on September 2025

Perma-Seal specializes in protecting the value of your home backed by 45 years of serving the Chicagoland and NW Indiana areas. Our basement waterproofing stops leaks and flooding, our foundation repairs fix settling and bowed walls, and our crawl space solutions control humidity and improve air quality. Our concrete lifting and leveling service offers a reliable, quick, and highly effective way to repair your sunken, cracked driveway, patio, pool deck, or sidewalk for a fraction of the cost of replacement. Additionally, we provide yard drainage solutions, sewer and plumbing services, and home comfort solutions such as air sealing, and insulation to ensure your home remains in top condition. What sets us apart? Our commitment to superior customer service and our solid warranty. Any product or work covered by our warranty is serviced free of charge for the entire warranty period. Choose Perma-Seal for reliable, quality solutions to keep your home safe and comfortable.

"Jose and the team did a great job. Very professional and communicative. We're happy with the result and would recommend them."

ELAINE O on September 2025


Avatar for Daniel Nagel

Daniel Nagel

4.90(
37
)
Approved Pro

Daniel Nagel

4.90(
37
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2014 years of experience

Get the B.E.S.T for your home (Building Energy Services and Testing) from ZENERGY LLC. We strive to help our clients find the 'ZEN' in their homes, that point where there improved comfort and the utility bills aren't emptying your pocket. We take a whole house approach to identify and resolve any issues within the home's attic, basement, or crawl space to improve the homes performance against the weather. Our services focus on targeted air sealing, increasing the insulation, installing proper ventilation, or making adjustments to the home to improve the comfort. ZENERGY is your one stop for full home energy auditing or home performance improvements. Let us help solve your homes energy consumption and comfort issues with our 3D approach. We are able to Discover the root cause of the issue. Design a solution for repair and Deliver the corrective action to improve the situation. WWW.greenzenergy.com 773-710-1090

"We reached out to Dan with the issue of freezing pipes and cold rooms in our old house. Dan inspected the house and proposed a plan to remedy these issues. Aside from the more traditional air sealing and insulation solutions, Dan also recommended insulating the area of our house above our soffit, which was difficult to access but that appeared to be a major insulation issue. I should add the other firms we requested quotes for did not identify this area in their proposal. I firmly believe the proposals from the other firms would not have fixed our issues. Dan worked for ~2 weeks on air sealing our attic and house, adding insulation to our attic, removing our soffit and adding insulation and reinstalling soffit. Work was done well and within budget and at a fair price. Dan is very easy to work with and takes pride in his work. We are very happy to report our pipes have not frozen and the cold rooms are no longer cold - would highly recommend Dan to others - he went above and beyond."

Daniel C on January 2023

Get the B.E.S.T for your home (Building Energy Services and Testing) from ZENERGY LLC. We strive to help our clients find the 'ZEN' in their homes, that point where there improved comfort and the utility bills aren't emptying your pocket. We take a whole house approach to identify and resolve any issues within the home's attic, basement, or crawl space to improve the homes performance against the weather. Our services focus on targeted air sealing, increasing the insulation, installing proper ventilation, or making adjustments to the home to improve the comfort. ZENERGY is your one stop for full home energy auditing or home performance improvements. Let us help solve your homes energy consumption and comfort issues with our 3D approach. We are able to Discover the root cause of the issue. Design a solution for repair and Deliver the corrective action to improve the situation. WWW.greenzenergy.com 773-710-1090

"We reached out to Dan with the issue of freezing pipes and cold rooms in our old house. Dan inspected the house and proposed a plan to remedy these issues. Aside from the more traditional air sealing and insulation solutions, Dan also recommended insulating the area of our house above our soffit, which was difficult to access but that appeared to be a major insulation issue. I should add the other firms we requested quotes for did not identify this area in their proposal. I firmly believe the proposals from the other firms would not have fixed our issues. Dan worked for ~2 weeks on air sealing our attic and house, adding insulation to our attic, removing our soffit and adding insulation and reinstalling soffit. Work was done well and within budget and at a fair price. Dan is very easy to work with and takes pride in his work. We are very happy to report our pipes have not frozen and the cold rooms are no longer cold - would highly recommend Dan to others - he went above and beyond."

Daniel C on January 2023


"I've used Domicile Consulting for several homes, after initially finding the company on Angie's List. Dan Cullen is exceptionally knowledgeable, objective and insightful. Prices are reasonable and well worth the investment. Dan takes copious pictures and compiles them in a handy report with recommendations. Highly recommended."

Christopher C on January 2020

CALL or TEXT US at 312.488.1461. Additional contact Owner Mark Hughes at [email protected]; [email protected].

"I've used Domicile Consulting for several homes, after initially finding the company on Angie's List. Dan Cullen is exceptionally knowledgeable, objective and insightful. Prices are reasonable and well worth the investment. Dan takes copious pictures and compiles them in a handy report with recommendations. Highly recommended."

Christopher C on January 2020


Avatar for A-Action Pest Control, Inc.

A-Action Pest Control, Inc.

4.93(
228
)

A-Action Pest Control, Inc.

4.93(
228
)
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

A-Action Pest Control, Inc. is a local family owned and operated pest control business in Lake County, Illinois. We are a second generation pest control company whose Core Values are: Authentic Relationships, 5-star reputation, Fun, Helps First and Compassionate. Our 3 unique abilities are: Dedicated Technicians, Family Owned 5-Star Reputation. A friendly customer solution expert will always answer your telephone call and be able to answer even your most technical questions and can give you a free quote over the telephone. We are licensed, certified and members of the National Pest Management Association. Please give us a call and we'll prove to you we have raised the bar in the service industry!

"Great job!"

Nichole T on December 2024

A-Action Pest Control, Inc. is a local family owned and operated pest control business in Lake County, Illinois. We are a second generation pest control company whose Core Values are: Authentic Relationships, 5-star reputation, Fun, Helps First and Compassionate. Our 3 unique abilities are: Dedicated Technicians, Family Owned 5-Star Reputation. A friendly customer solution expert will always answer your telephone call and be able to answer even your most technical questions and can give you a free quote over the telephone. We are licensed, certified and members of the National Pest Management Association. Please give us a call and we'll prove to you we have raised the bar in the service industry!

"Great job!"

Nichole T on December 2024


Avatar for Hobson Plumbing & Heating Inc

Hobson Plumbing & Heating Inc

4.88(
169
)

Hobson Plumbing & Heating Inc

4.88(
169
)
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

We are a family owned and operated residential and commercial plumbing, heating and cooling services company. We operate 24 hours a day. We have over 20 years of experience in the plumbing, heating and cooling industries and we guarantee the issue will be resolved quickly and efficiently the first time. Our licensed plumbers and HVAC techs accept all major credit cards, checks, and cash as payment when the job is complete .

"Very good, very professional. their price is competitive."

nancy p on June 2022

We are a family owned and operated residential and commercial plumbing, heating and cooling services company. We operate 24 hours a day. We have over 20 years of experience in the plumbing, heating and cooling industries and we guarantee the issue will be resolved quickly and efficiently the first time. Our licensed plumbers and HVAC techs accept all major credit cards, checks, and cash as payment when the job is complete .

"Very good, very professional. their price is competitive."

nancy p on June 2022


Avatar for Air Blue Heating & Cooling Inc

Air Blue Heating & Cooling Inc

4.67(
619
)

Air Blue Heating & Cooling Inc

4.67(
619
)
Customers say: Super punctual
1983 years of experience

**$25 off any repair $100 or more (exclusions apply) ASK US FOR DETAILS** Air Blue Heating & Cooling Inc. is full service heating and cooling company staffed by experienced, trained, and courteous professionals. We serve you with over 30 years of HVAC field experience. We pride ourselves on excellent customer service, and will make sure that your every HVAC need and request is satisfied 100% of the time. Air Blue Heating & Cooling, Inc. is fully licensed, bonded, insured, and our technicians are factory trained. We are a member of the North American Technician Excellence (NATE) which is the leading certificate program for technicians in the heating, ventilation, air-conditioning, and refrigeration (HVAC/R) industry and is the only test supported by the entire industry. We offer safety efficiency maintenance agreements as a pillar to the reliability of your heating and cooling needs. To maintain your system for year-round comfort and reliability. we recommend you get your spring and fall tune-up and service every year.

"Although the technician was not able to fix my wall heater, he was prompt courteous and explained the issue and why it could not be repaired."

John P on January 2024

**$25 off any repair $100 or more (exclusions apply) ASK US FOR DETAILS** Air Blue Heating & Cooling Inc. is full service heating and cooling company staffed by experienced, trained, and courteous professionals. We serve you with over 30 years of HVAC field experience. We pride ourselves on excellent customer service, and will make sure that your every HVAC need and request is satisfied 100% of the time. Air Blue Heating & Cooling, Inc. is fully licensed, bonded, insured, and our technicians are factory trained. We are a member of the North American Technician Excellence (NATE) which is the leading certificate program for technicians in the heating, ventilation, air-conditioning, and refrigeration (HVAC/R) industry and is the only test supported by the entire industry. We offer safety efficiency maintenance agreements as a pillar to the reliability of your heating and cooling needs. To maintain your system for year-round comfort and reliability. we recommend you get your spring and fall tune-up and service every year.

"Although the technician was not able to fix my wall heater, he was prompt courteous and explained the issue and why it could not be repaired."

John P on January 2024


Avatar for Energy360 Solutions Inc

Energy360 Solutions Inc

4.98(
46
)

Energy360 Solutions Inc

4.98(
46
)
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are an energy-efficiency focused general contractor delivering Energy Audits, Insulation Services, Replacement Doors and Windows, and HVAC services. Our mission is to make your home or building perform as it was meant to, providing greater comfort for less money. Let the professionals at Energy360 Solutions find ways to lower your utility costs while increasing the overall comfort of your home or commercial building. The homes and buildings we occupy are more than a collection of unrelated parts. They are complex systems that require a holistic approach to discovering both the true dynamics of the problem and the full range of practical solutions. That’s the Energy360 Solutions advantage.

We are an energy-efficiency focused general contractor delivering Energy Audits, Insulation Services, Replacement Doors and Windows, and HVAC services. Our mission is to make your home or building perform as it was meant to, providing greater comfort for less money. Let the professionals at Energy360 Solutions find ways to lower your utility costs while increasing the overall comfort of your home or commercial building. The homes and buildings we occupy are more than a collection of unrelated parts. They are complex systems that require a holistic approach to discovering both the true dynamics of the problem and the full range of practical solutions. That’s the Energy360 Solutions advantage.


Avatar for The Rayes Group, TRG

The Rayes Group, TRG

5.00(
20
)

The Rayes Group, TRG

5.00(
20
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

The Rayes Group is a family-owned, woman-owned, Residential HVAC business. Servicing the Chicagoland Northshore burbs. Our HVAC roots stretch back over 50+ years of experience in the HVAC industry. Whether you need a maintenance check or an emergency repair on a heating or cooling unit, we are available to handle all of your all of your heating, cooling, and ventilation needs. We strive to exceed your expectations by ensuring that each of our clients receives individualized service.

"Exceptional service!! It was a pleasure working with Will and his team. He provides detailed estimates and he turned everything around so quickly and efficiently. He talked me through what he was doing from start to finish. Reasonable prices and super clean!! I highly recommend TRG Hearing & Cooling. 5 stars!!"

Natalie B on February 2022

The Rayes Group is a family-owned, woman-owned, Residential HVAC business. Servicing the Chicagoland Northshore burbs. Our HVAC roots stretch back over 50+ years of experience in the HVAC industry. Whether you need a maintenance check or an emergency repair on a heating or cooling unit, we are available to handle all of your all of your heating, cooling, and ventilation needs. We strive to exceed your expectations by ensuring that each of our clients receives individualized service.

"Exceptional service!! It was a pleasure working with Will and his team. He provides detailed estimates and he turned everything around so quickly and efficiently. He talked me through what he was doing from start to finish. Reasonable prices and super clean!! I highly recommend TRG Hearing & Cooling. 5 stars!!"

Natalie B on February 2022


Avatar for DRF Water Heating Solutions

DRF Water Heating Solutions

4.63(
326
)

DRF Water Heating Solutions

4.63(
326
)
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

Since 2004, DRF Water Heating Solutions has provided reliable and expert service for water heater and plumbing needs. We are Chicagoland's leading installer of all types of water heaters, and pride ourselves on offering same-day service and a hassle-free experience. Our team is fully licensed, ensuring you receive professional and dependable service every time. For a free no-obligation quote, call us and a trained Water Solutions Advisor will assist you. Or visit our website and complete a short survey to obtain an instant quote online. For a hassle-free experience, 1-year price guarantee and the best warranty, select DRF for your water heater and plumbing needs. IDPH plumbing license # 055-028138.

"Robert and Jorge did an excellent job removing my old laundry room sink and cabinet and installing the new one. I am very happy with the quality of their work and their attention to detail. Robert and Jorge were very knowledgeable and friendly and had a commitment to customer satisfaction. They were resourceful when faced with a potential plumbing issue and quickly resolved the problem."

Roland L on November 2025

Since 2004, DRF Water Heating Solutions has provided reliable and expert service for water heater and plumbing needs. We are Chicagoland's leading installer of all types of water heaters, and pride ourselves on offering same-day service and a hassle-free experience. Our team is fully licensed, ensuring you receive professional and dependable service every time. For a free no-obligation quote, call us and a trained Water Solutions Advisor will assist you. Or visit our website and complete a short survey to obtain an instant quote online. For a hassle-free experience, 1-year price guarantee and the best warranty, select DRF for your water heater and plumbing needs. IDPH plumbing license # 055-028138.

"Robert and Jorge did an excellent job removing my old laundry room sink and cabinet and installing the new one. I am very happy with the quality of their work and their attention to detail. Robert and Jorge were very knowledgeable and friendly and had a commitment to customer satisfaction. They were resourceful when faced with a potential plumbing issue and quickly resolved the problem."

Roland L on November 2025

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Energy Efficiency Auditing questions, answered by experts

String lights require electricity, but not an excessive amount, especially when compared to other lighting fixtures. LED rope lights, for instance, consume around one watt per foot. Running six or seven light strings simultaneously should only cost you around $10 to $15 each month. You can save even more money by remembering to turn off your lights during daylight hours. 

You can determine what size generator you need by listing the various appliances it will power during an outage. Write down the start-up watt usage, and then add them all together. 

A 7,500-watt generator will run your refrigerator, freezer, well pump, and lighting circuits without a problem. However, you’ll need an extra 3,000 to 4,500 watts to run your water heater and another 5,000 to 25,000 watts to run your electric furnace. In these instances, a whole-home generator is your best bet for running your critical equipment.

You can increase your home’s load factor by replacing fuse boxes with a circuit breaker, hiring a licensed electrician to upgrade your electrical panel, upgrading wiring, or installing subpanels. An electrical inspection by an expert can help determine the state of your current electrical systems and how they can be improved.

As you look for the right soundproofing drywall for you, you’ll likely come across the Sound Transmission Class (STC) rating. This rating measures a building material’s ability to absorb sound. The higher the number, the better the material absorbs rather than reflects sound, reducing noise transmission. The STC rating for drywall doesn’t mean it’s for the panel itself—it refers to the STC rating for the entire wall system, including the soundproofing drywall.

Yes, most audits include a report with prioritized recommendations for improving energy efficiency. Confirm with your auditor.

The Deerfield, IL homeowners’ guide to energy efficiency auditing services

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