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  • Verified reviews icon33
    Verified energy efficiency auditing services reviews

Find Energy efficiency auditors in Berkeley

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
32 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(
1,167
)
•Approved Pro

Perma-Seal Basement Systems

4.55(
1,167
)
•Approved Pro
Customers say: Super punctual
46 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.

"I have hired Permaseal to fix my unleveled patio concrete floor that was and still causing rain water to get to my basement, I have paid them $2,014.33 as down payment, they showed up one month later for the job, which is injecting foam under the concrete slab to lift it back to its original correct level. I came back home that day to find out that they have left and that the concrete slab was not only still unleveled, but they cracked it and patched it on multiple locations. I have called their customer care number more than a dozen times in attempt to understand what is going on, and on each occasion, I was told that the project manager was going to contact me back, which never happened until i made the next call, They have finally explained to me over the phone that it was the best they could do and that they could not fix my patio floor. I asked for a refund and did not hear back. I have documented pictures of before and after showing that the job was not done and cancelled the check with the remaining balance. I have not heard anything back from them since then, until i started getting debt collectors' emails on December the 5th from a business called FCR Services."

Sami M on December 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.

"I have hired Permaseal to fix my unleveled patio concrete floor that was and still causing rain water to get to my basement, I have paid them $2,014.33 as down payment, they showed up one month later for the job, which is injecting foam under the concrete slab to lift it back to its original correct level. I came back home that day to find out that they have left and that the concrete slab was not only still unleveled, but they cracked it and patched it on multiple locations. I have called their customer care number more than a dozen times in attempt to understand what is going on, and on each occasion, I was told that the project manager was going to contact me back, which never happened until i made the next call, They have finally explained to me over the phone that it was the best they could do and that they could not fix my patio floor. I asked for a refund and did not hear back. I have documented pictures of before and after showing that the job was not done and cancelled the check with the remaining balance. I have not heard anything back from them since then, until i started getting debt collectors' emails on December the 5th from a business called FCR Services."

Sami M on December 2025

Avatar for Domicile Consulting LLC

Domicile Consulting LLC

4.96(
315
)

Domicile Consulting LLC

4.96(
315
)
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

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

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 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
42 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 DRF Water Heating Solutions

DRF Water Heating Solutions

4.62(
328
)

DRF Water Heating Solutions

4.62(
328
)
Customers say: Super punctual
21 years of experience

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.

"The plumbers this company sent to my house did not put the washing machine drain hose back in the drain. We did laundry and flooded the kitchen and damaged some wood flooring. Contacted this company and they said it's on the plumber to fix it. I don't have plumber contacts. They said they would help me get it fixed and did ok at first. It's been over 6 weeks later and no one has done anything. Nothing has been fixed. Everyone has said, including the plumber, this was not our fault, yet no one will fix it! I've asked even for a refund so I can get the floors fixed and again, nothing. This is the company we hired and they just pass the buck. They are not helpful but nice so try to give you hope things will be ok. It's a joke, poor customer care and I will NEVER use them again and wish I could have called around instead of using Home Depots suggestions. "

Amy S on December 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.

"The plumbers this company sent to my house did not put the washing machine drain hose back in the drain. We did laundry and flooded the kitchen and damaged some wood flooring. Contacted this company and they said it's on the plumber to fix it. I don't have plumber contacts. They said they would help me get it fixed and did ok at first. It's been over 6 weeks later and no one has done anything. Nothing has been fixed. Everyone has said, including the plumber, this was not our fault, yet no one will fix it! I've asked even for a refund so I can get the floors fixed and again, nothing. This is the company we hired and they just pass the buck. They are not helpful but nice so try to give you hope things will be ok. It's a joke, poor customer care and I will NEVER use them again and wish I could have called around instead of using Home Depots suggestions. "

Amy S on December 2025

Avatar for THE ATTIC EXPERTS

THE ATTIC EXPERTS

4.89(
63
)

THE ATTIC EXPERTS

4.89(
63
)
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers

Attic Insulation & Ventilation: Attic Insulation, Attic Fans, Bathroom Exhaust Fans, QuietCool Pro Series Whole-house Fans, Roof Vents, Soffit Vents, Eave Vents, Baffles, Gap & Crack Fireblock Sealant.

"They recommended and performed services that did not correct our problem. Our bedrooms are still cold and when I called asking for them to come back out they never got back to me."

Angela P on March 2022

Attic Insulation & Ventilation: Attic Insulation, Attic Fans, Bathroom Exhaust Fans, QuietCool Pro Series Whole-house Fans, Roof Vents, Soffit Vents, Eave Vents, Baffles, Gap & Crack Fireblock Sealant.

"They recommended and performed services that did not correct our problem. Our bedrooms are still cold and when I called asking for them to come back out they never got back to me."

Angela P on March 2022

Avatar for Residential and Commercial Inspection Service LLC

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

Avatar for Apex Energy Inc

Apex Energy Inc

4.92(
26
)

Apex Energy Inc

4.92(
26
)
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

Additional e-mail - [email protected].

"Wayne from Apex Energy Inc installed a new energy efficient gas furnace and redid ductwork that was badly needed. He was very fast on his install and very knowledgeable and professional. He explained exactly what need to be done . I was very pleased ,there was no delays and the install was very good and fast. I would recommend Apex to anyone that needs work done!"

Joseph W on October 2025

Additional e-mail - [email protected].

"Wayne from Apex Energy Inc installed a new energy efficient gas furnace and redid ductwork that was badly needed. He was very fast on his install and very knowledgeable and professional. He explained exactly what need to be done . I was very pleased ,there was no delays and the install was very good and fast. I would recommend Apex to anyone that needs work done!"

Joseph W on October 2025

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

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Verified Reviews for Energy Efficiency Auditing pros in Berkeley, IL

*The Angi rating for Energy Efficiency Auditing companies in Berkeley, 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 Berkeley, 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 December 30, 2025

Energy Efficiency Auditing questions, answered by experts

If you install LED bulbs, they will use much less energy than incandescent bulbs. LED light strips also use less power. Battery-operated puck lights use no electricity at all, but you will need to replace the batteries as needed. They are beneficial if your power goes out, too, as they will remain on as a light source. 

Audits include inspecting insulation, HVAC systems, windows, and appliances to identify energy inefficiencies.

When combined with a substantial solar system, if you have enough Powerwalls, you could go off-grid and be energy independent. But remember, you'd need enough Powerwalls to power your whole home continuously because a single Powerwall can’t power large appliances for extended periods. One Powerwall is able to power an average-sized home's emergency circuits, lights, and outlets. To power large appliances, you likely need two or three Powerwalls.

Blower door tests are measured in a few different ways, but the most popular are air changes per hour (ACH) and cubic feet of air (CFM) moving through the house per hour. A good ACH score is less than 2ACH, but 1ACH is better. This means the house experiences a total air change within 60 minutes (for 1ACH). For 2ACH, there’s a complete change every 30 minutes, and so on. CFM scores are similar in that a lower score means less air change, and therefore less leakage.

There are a few ways to reduce your electricity bills if you use window AC units to keep cool. Set the unit temperature at least 1 degree higher than it is currently to reduce costs. Keep the unit clean for it to run efficiently. You may want to hire a window AC specialist near you to inspect the unit once a year and keep it in tip-top shape.

The Berkeley, 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.

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