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    Verified energy efficiency auditing services reviews

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Avatar for Perma-Seal Basement Systems

Perma-Seal Basement Systems

4.43(
1,404
)
Approved Pro

Perma-Seal Basement Systems

4.43(
1,404
)
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 Assured Energy Solutions

Assured Energy Solutions

4.83(
68
)
Approved Pro

Assured Energy Solutions

4.83(
68
)
Approved Pro
Customers say: Quick response
1985 years of experience
Free onsite estimate

Assured, based in Frankfort, IL, has over 30 years of experience delivering insulation, HVAC, air sealing, weatherization, and energy efficiency services across Chicago, the suburbs, and communities throughout Illinois and Indiana. We help homeowners, property managers, and utility programs reduce energy costs, improve comfort, and increase home performance. Known for quality workmanship and reliable results, our team works on both single-family and multifamily homes. We also assist customers with utility rebates and incentives. Whether it's attic insulation, duct sealing, or crawlspace upgrades, we take a detail-focused approach to every job.

"My loft above my garage was humid and a bit uncomfortable from what I was expecting. I’ve watched enough home repair shows and understand air flow enough to know it would never be perfect, but something was off because of the humidity issues. Mike came in and did an inspection, confirming that there was a lot of room for improvement in the garage ceiling. The heat camera was showing that there was a lot of heat transfer happening in the loft, foot prints (from boots) leaving heat transfer marks which is unusual and recommended dense insulation pack to fill the void. I sat on it for a few weeks, called and scheduled for the 17th, but got in early due to an opening. It took several hours to complete the work, and the folks said it had 5” bat insulation but a 17” void, which confirmed Mike’s original thought that there was a gap between the insulation and the loft floor which was carrying the heat from the outside into the floor."

Grant P on September 2025

Assured, based in Frankfort, IL, has over 30 years of experience delivering insulation, HVAC, air sealing, weatherization, and energy efficiency services across Chicago, the suburbs, and communities throughout Illinois and Indiana. We help homeowners, property managers, and utility programs reduce energy costs, improve comfort, and increase home performance. Known for quality workmanship and reliable results, our team works on both single-family and multifamily homes. We also assist customers with utility rebates and incentives. Whether it's attic insulation, duct sealing, or crawlspace upgrades, we take a detail-focused approach to every job.

"My loft above my garage was humid and a bit uncomfortable from what I was expecting. I’ve watched enough home repair shows and understand air flow enough to know it would never be perfect, but something was off because of the humidity issues. Mike came in and did an inspection, confirming that there was a lot of room for improvement in the garage ceiling. The heat camera was showing that there was a lot of heat transfer happening in the loft, foot prints (from boots) leaving heat transfer marks which is unusual and recommended dense insulation pack to fill the void. I sat on it for a few weeks, called and scheduled for the 17th, but got in early due to an opening. It took several hours to complete the work, and the folks said it had 5” bat insulation but a 17” void, which confirmed Mike’s original thought that there was a gap between the insulation and the loft floor which was carrying the heat from the outside into the floor."

Grant P on September 2025


"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 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 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


Residential and Commercial Inspection Service LLC

4.88(
32
)

Residential and Commercial Inspection Service LLC

4.88(
32
)
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

Owner operated, no sub-contractors for primary service, will make referal for services not licensed to perform. Pricing based upon property size, not list price. Service area includes the Chicago Metropolitan area.

"Jeffrey arrived on time and was responsive. However, Jeff missed a VERY crucial, important and now COSTLY expense for my husband and I to NOW repair. Jeff missed many concerns with our front door. It has major gaps, wood rot and the door also hits the front step as you open the door. A few weeks after moving in we noticed our house was FREEZING and it was all due to the front door. The ENTIRE door needs to be replaced and I am so angry he did NOT catch this. This is costing us thousands of dollars to replace. Would NOT recommend Jeff to anyone. On our report under major concerns: he put none. Items reaching the end of their life or need replacement in the next 5 years : he put none. Items to monitor: he put none. Do not hire Jeff. Now thousands of dollars in the hole."

Sara G on July 2022

Owner operated, no sub-contractors for primary service, will make referal for services not licensed to perform. Pricing based upon property size, not list price. Service area includes the Chicago Metropolitan area.

"Jeffrey arrived on time and was responsive. However, Jeff missed a VERY crucial, important and now COSTLY expense for my husband and I to NOW repair. Jeff missed many concerns with our front door. It has major gaps, wood rot and the door also hits the front step as you open the door. A few weeks after moving in we noticed our house was FREEZING and it was all due to the front door. The ENTIRE door needs to be replaced and I am so angry he did NOT catch this. This is costing us thousands of dollars to replace. Would NOT recommend Jeff to anyone. On our report under major concerns: he put none. Items reaching the end of their life or need replacement in the next 5 years : he put none. Items to monitor: he put none. Do not hire Jeff. Now thousands of dollars in the hole."

Sara G on July 2022


DNR CONSTRUCTION INC

4.79(
38
)

DNR CONSTRUCTION INC

4.79(
38
)
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

We are family owned and have been in business for over 14 years. We do not sub-contract any work.

"Initial call and owner, he didn't try to sell me anything else he made an immediate arrangement to come out the next day. Gave a price that was fairer than competitors. Vedel, Leo, George, Alfonso, and Cesar they were professional, courteous, competent ,left my property clean and tidy. They were knowledgeable and expedient . I highly recommend them."

Gisella M on November 2021

We are family owned and have been in business for over 14 years. We do not sub-contract any work.

"Initial call and owner, he didn't try to sell me anything else he made an immediate arrangement to come out the next day. Gave a price that was fairer than competitors. Vedel, Leo, George, Alfonso, and Cesar they were professional, courteous, competent ,left my property clean and tidy. They were knowledgeable and expedient . I highly recommend them."

Gisella M on November 2021


Avatar for SAFE Electrical Service

SAFE Electrical Service

4.89(
108
)

SAFE Electrical Service

4.89(
108
)
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

For over 20 years, we have provided all of Chicago and the surrounding areas with the highest quality electrical service. Our electricians are thoroughly trained to be in your home, they are courteous, will answer any question about your electrical situation, and will even wear shoe covers to help keep your home clean. All backed by our 100% Personal Satisfaction Guarantee. Our Master Electrician, Charles Otstott, has over 20 years’ experience as a residential and commercial electrician. He has a strong work ethic and is dedicated to safety. He also takes great pride in keeping the job as clean as he found it. He is a certified Generac Generator technician and an expert in trouble shooting power outages. We do not sub-contract our work, ever. You are the most important person from the time you call us- Guaranteed!!!

"I would hire SAFE Electric again and again and again! They are prompt, responsive, fair, efficient, courteous, respectful, etc. I have the highest recommendation for this company. Their customer service is top-notch and I'm grateful to have a company I can call when stuff just stops working or if I need to upgrade my lighting fixtures. I appreciate how they explain everything that needs to be done and what they did. You will not be disappointed. It wouldn't be hyperbole to say it will be the best home repair experience you will ever have."

MARGUERITE G on December 2024

For over 20 years, we have provided all of Chicago and the surrounding areas with the highest quality electrical service. Our electricians are thoroughly trained to be in your home, they are courteous, will answer any question about your electrical situation, and will even wear shoe covers to help keep your home clean. All backed by our 100% Personal Satisfaction Guarantee. Our Master Electrician, Charles Otstott, has over 20 years’ experience as a residential and commercial electrician. He has a strong work ethic and is dedicated to safety. He also takes great pride in keeping the job as clean as he found it. He is a certified Generac Generator technician and an expert in trouble shooting power outages. We do not sub-contract our work, ever. You are the most important person from the time you call us- Guaranteed!!!

"I would hire SAFE Electric again and again and again! They are prompt, responsive, fair, efficient, courteous, respectful, etc. I have the highest recommendation for this company. Their customer service is top-notch and I'm grateful to have a company I can call when stuff just stops working or if I need to upgrade my lighting fixtures. I appreciate how they explain everything that needs to be done and what they did. You will not be disappointed. It wouldn't be hyperbole to say it will be the best home repair experience you will ever have."

MARGUERITE G on December 2024


Avatar for Integrity Heating & Cooling Inc

Integrity Heating & Cooling Inc

4.49(
179
)

Integrity Heating & Cooling Inc

4.49(
179
)
Customers say: Super punctual
1995 years of experience

Our Company’s mission, quite simply, is to live up to our name! Definition of Integrity. In-teg-ri-ty (noun). INTEGRITY is a concept of consistency of actions, values, methods, measures, principles, expectations and outcomes. In ethics, INTEGRITY is regarded as the honesty and truthfulness or accuracy of one’s actions. Additional phones - (815) 723-2711, (630) 343-0778. Additional emails - [email protected] and [email protected]. Cost is determined by the job. Additional Web address - www.WeHaveIntegrity.com.

"We called about a noise in our A/C. When we initially called they told us that we would not be charged for the service as we have their annual plan. After the service person came out we were given a $218 bill that was due at time of service. My wife called the next to get clarification on the bill and was told we were not supposed to be charged 99 and that they would reach out to us to figure out how to get the money back to us. They still cashed our check and the service manager will not return our calls so we are out 99 dollars. We have been attempting to reach out for a month now and each time the Service Manager is "busy." Incredibly unprofessional. On top of this, the issue of the noise was not resolved and we had to have another tech come out and fix it again. The price for each visit was not consistent so I have to assume they make up prices as they go. First charge was for 119 (plus the 99 they were not supposed to charge) and second time out was 149. I would avoid paying this company if they come out to you until you get an itemized explanation as they will keep your money even after they admit they were not supposed to charge you."

Kenneth S on September 2022

Our Company’s mission, quite simply, is to live up to our name! Definition of Integrity. In-teg-ri-ty (noun). INTEGRITY is a concept of consistency of actions, values, methods, measures, principles, expectations and outcomes. In ethics, INTEGRITY is regarded as the honesty and truthfulness or accuracy of one’s actions. Additional phones - (815) 723-2711, (630) 343-0778. Additional emails - [email protected] and [email protected]. Cost is determined by the job. Additional Web address - www.WeHaveIntegrity.com.

"We called about a noise in our A/C. When we initially called they told us that we would not be charged for the service as we have their annual plan. After the service person came out we were given a $218 bill that was due at time of service. My wife called the next to get clarification on the bill and was told we were not supposed to be charged 99 and that they would reach out to us to figure out how to get the money back to us. They still cashed our check and the service manager will not return our calls so we are out 99 dollars. We have been attempting to reach out for a month now and each time the Service Manager is "busy." Incredibly unprofessional. On top of this, the issue of the noise was not resolved and we had to have another tech come out and fix it again. The price for each visit was not consistent so I have to assume they make up prices as they go. First charge was for 119 (plus the 99 they were not supposed to charge) and second time out was 149. I would avoid paying this company if they come out to you until you get an itemized explanation as they will keep your money even after they admit they were not supposed to charge you."

Kenneth S on September 2022


UNIQUE INDOOR COMFORT

4.71(
31
)

UNIQUE INDOOR COMFORT

4.71(
31
)
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

Unique Indoor Comfort Inc is a nationally recognized, family owned and operated heating and air conditioning company. Unique Indoor Comfort has been providing the highest quality services and installations to homeowners and businesses throughout North and South suburbs and the city of Chicago. Unique Indoor Comfort services and installs a wide range of products including furnaces, boilers, radiant heat, snow melt systems, ductless systems, air conditioning systems, humidifiers, air cleaners, generators, and our specialty Unico and Space-Pak high velocity air conditioning systems for hot water or steam vintage homes or condos. We offer Emergency service as well as full maintenance and service plans to suit your needs.

Unique Indoor Comfort Inc is a nationally recognized, family owned and operated heating and air conditioning company. Unique Indoor Comfort has been providing the highest quality services and installations to homeowners and businesses throughout North and South suburbs and the city of Chicago. Unique Indoor Comfort services and installs a wide range of products including furnaces, boilers, radiant heat, snow melt systems, ductless systems, air conditioning systems, humidifiers, air cleaners, generators, and our specialty Unico and Space-Pak high velocity air conditioning systems for hot water or steam vintage homes or condos. We offer Emergency service as well as full maintenance and service plans to suit your needs.

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Energy Efficiency Auditing questions, answered by experts

Dryers are designed to use as little electricity as possible, but power is still required to run the motor that turns the drum and to heat an element that pumps hot air. Eco devices are available and may lead to cost savings in the long term, but you should run the figures before committing to an eco-friendly device as they are often much more expensive to purchase.

Depending on the level of audit you choose, a home energy audit will at least include a walk-through of the home to determine visible inefficiencies, but may include testing and a highly detailed inspection and report laying out the home’s inefficiencies and providing recommendations to fix those issues. The audit may also include a review of utility bills and mechanical testing. Consult your home energy auditor about the types of services they provide before hiring.

Energy-efficient windows cost more than other window types, but they can help you save on your monthly energy bills, get you some breaks on your taxes, and even increase the value of your home. According to Michael S. Regan, Administrator of the U.S. Environmental Protection Agency, when people invest in green upgrades like energy-efficient windows, they save energy, money, and more.

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. 

No, it isn’t necessary to have energy-efficient windows. However, if you care about your energy bill and making your windows more energy efficient, fixing any heat, UV, or air transfer issues is an excellent way to lower your bills and keep your house cooler in the summer and warmer in the winter.

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

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