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Verified Reviews for Energy Efficiency Auditing pros in Sycamore, IL

*The Angi rating for Energy Efficiency Auditing companies in Sycamore, 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 Sycamore, 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 15, 2025

Find Energy efficiency auditors in Sycamore

Avatar for Perma-Seal Basement Systems

Perma-Seal Basement Systems

4.56(
1,162
)
•Approved Pro

Perma-Seal Basement Systems

4.56(
1,162
)
•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.

"Great job! Delivered exactly what was promised. Efficient and professional."

Nemura P 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.

"Great job! Delivered exactly what was promised. Efficient and professional."

Nemura P on December 2025

Avatar for Building Energy Experts Insulation and Supply

Building Energy Experts Insulation and Supply

4.62(
157
)

Building Energy Experts Insulation and Supply

4.62(
157
)
Customers say: Super punctual
18 years of experience

Building Energy Experts is the leading building energy auditor, energy retrofit, blow and spray foam insulation, led lighting, and alternative energy specialist for government, commercial, and residential applications since 2008. Building energy experts looks at your building as a complex system, we run a series of diagnostic tests to pinpoint exactly why your building isn’t as energy efficient, healthy, comfortable, and green as it should be. The results of our tests tell us exactly how to improve your building. BPI certified building scientists. Nicor/ Peoples Gas/ North Shore Gas/ ComEd Energy Smart Contractor.

"We just had our attic and crawl space insulated and a moisture barrier put in. The crew showed up on time and every one of them was polite and professional. We could tell they had a lot of experience working together because they were super organized. While the boss, Dave, walked us through the process in detail, making sure we understood the job, behind him the crew set up quickly and efficiently, treating our home with respect. They were finished right on time, too, and left our house looking as if they had never been there. Before they left, Dave showed us their work and explained how these improvements would make our home more energy efficient. Every crew member made sure to say goodbye to us. They were amazing people! We highly recommend Building Energy Experts."

Eve S on May 2024

Building Energy Experts is the leading building energy auditor, energy retrofit, blow and spray foam insulation, led lighting, and alternative energy specialist for government, commercial, and residential applications since 2008. Building energy experts looks at your building as a complex system, we run a series of diagnostic tests to pinpoint exactly why your building isn’t as energy efficient, healthy, comfortable, and green as it should be. The results of our tests tell us exactly how to improve your building. BPI certified building scientists. Nicor/ Peoples Gas/ North Shore Gas/ ComEd Energy Smart Contractor.

"We just had our attic and crawl space insulated and a moisture barrier put in. The crew showed up on time and every one of them was polite and professional. We could tell they had a lot of experience working together because they were super organized. While the boss, Dave, walked us through the process in detail, making sure we understood the job, behind him the crew set up quickly and efficiently, treating our home with respect. They were finished right on time, too, and left our house looking as if they had never been there. Before they left, Dave showed us their work and explained how these improvements would make our home more energy efficient. Every crew member made sure to say goodbye to us. They were amazing people! We highly recommend Building Energy Experts."

Eve S on May 2024

Avatar for D&H Energy Management Company LLC

D&H Energy Management Company LLC

4.46(
13
)

D&H Energy Management Company LLC

4.46(
13
)
Customers say: Quick response
21 years of experience

Additional email - [email protected]. Additional DBA - DH Insulation, an Energy Management Co.

Additional email - [email protected]. Additional DBA - DH Insulation, an Energy Management Co.

Ken Spears Construction Inc

4.80(
5
)

Ken Spears Construction Inc

4.80(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Ken Spears Construction, Inc., has been proud to serve DeKalb County and Northern Illinois since 1975. We provide complete home renovation and solutions for residential upkeep and updating. We protect the homeowner by: * Being fully insured, including workmen’s compensation on all employees and liability insurance to provide you with peace of mind. This includes being a licensed roofing contractor as required by Illinois law. * Providing qualified working teams to ensure your project moves as smoothly as possible * Keeping job sites clean during and after project completion * Using only high quality components * Communicating with you during the process Our experience includes: * Window and door updating * Bath remodels and additions * Kitchen updates and additions * Second-floor and dormer additions * Room addition bump outs * In-law suites * Basement finishing * Whole-home remodeling * Decks and porches

Ken Spears Construction, Inc., has been proud to serve DeKalb County and Northern Illinois since 1975. We provide complete home renovation and solutions for residential upkeep and updating. We protect the homeowner by: * Being fully insured, including workmen’s compensation on all employees and liability insurance to provide you with peace of mind. This includes being a licensed roofing contractor as required by Illinois law. * Providing qualified working teams to ensure your project moves as smoothly as possible * Keeping job sites clean during and after project completion * Using only high quality components * Communicating with you during the process Our experience includes: * Window and door updating * Bath remodels and additions * Kitchen updates and additions * Second-floor and dormer additions * Room addition bump outs * In-law suites * Basement finishing * Whole-home remodeling * Decks and porches

Avatar for GreenLink Energy Solutions

GreenLink Energy Solutions

5.00(
5
)

GreenLink Energy Solutions

5.00(
5
)
Customers say: Quick response
14 years of experience

Greenlink Energy Solutions is located in Rockford, IL. Our focus is to provide your home, business, or building the most efficient and green solutions for your home. We guarantee quality work that provides the best results which means decreased utility bills, higher level of comfort, eliminating drafts, and ensuring your home is at peak performance. We provide numerous options not only for insulation but for solar panel installation as well. We're partnered with programs in Wisconsin and Illinois to provide financing, discounts, and incentives for your home or place of business.

"We have worked with Greenlink on multiple projects and have been satisfied on them all. They have completed everything from drywall, painting, new insulation and concrete foundation work for us. The work was done in a professional manner and on schedule."

Dave B on October 2018

Greenlink Energy Solutions is located in Rockford, IL. Our focus is to provide your home, business, or building the most efficient and green solutions for your home. We guarantee quality work that provides the best results which means decreased utility bills, higher level of comfort, eliminating drafts, and ensuring your home is at peak performance. We provide numerous options not only for insulation but for solar panel installation as well. We're partnered with programs in Wisconsin and Illinois to provide financing, discounts, and incentives for your home or place of business.

"We have worked with Greenlink on multiple projects and have been satisfied on them all. They have completed everything from drywall, painting, new insulation and concrete foundation work for us. The work was done in a professional manner and on schedule."

Dave B on October 2018

Avatar for Illinois Valley Insulation

Illinois Valley Insulation

3.17(
12
)

Illinois Valley Insulation

3.17(
12
)
36 years of experience

Additional email - [email protected].

"I had Illinois Valley Insulation at my house to blow in insulation in my garage attic. I was told by the owner Scott Bickett that I needed an R30 value which means I would need about 8 1/4” of insulation blown in. He was paid in cash($1500 paid in full but only did half the work), and a couple of days later I went up there and measured and only have about 4 1/2 inches so he only did about half the work and charged full price. And when I confronted him, he told me there’s8 to 10 inches up there which is a lie and I’ve given him every opportunity to call come by Measure and prove to me that is there, but he has failed to do so because he is just proving my point that he is in the wrong. And now he still will not provide me with a receipt so he’s trying to keep the cash and hide it like he didn’t do the Work very unprofessional."

Don H on March 2025

Additional email - [email protected].

"I had Illinois Valley Insulation at my house to blow in insulation in my garage attic. I was told by the owner Scott Bickett that I needed an R30 value which means I would need about 8 1/4” of insulation blown in. He was paid in cash($1500 paid in full but only did half the work), and a couple of days later I went up there and measured and only have about 4 1/2 inches so he only did about half the work and charged full price. And when I confronted him, he told me there’s8 to 10 inches up there which is a lie and I’ve given him every opportunity to call come by Measure and prove to me that is there, but he has failed to do so because he is just proving my point that he is in the wrong. And now he still will not provide me with a receipt so he’s trying to keep the cash and hide it like he didn’t do the Work very unprofessional."

Don H on March 2025

Solar Wolf Energy

2.00(
2
)

Solar Wolf Energy

2.00(
2
)
10 years of experience

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!

Avatar for Alternative Energy Solutions

Alternative Energy Solutions

No reviews yet

Alternative Energy Solutions

No reviews yet
24 years of experience

sales and installation of solar electric(photovoltaic), solar thermal(hot water), solar hot air, energy efficiency auditing, solar design consultant, certified solar site assessor, solar fire safety

sales and installation of solar electric(photovoltaic), solar thermal(hot water), solar hot air, energy efficiency auditing, solar design consultant, certified solar site assessor, solar fire safety

Direct Solar of America

No reviews yet

Direct Solar of America

No reviews yet
14 years of experience

Our second-to-none brokerage model benefits our customers by making sure they see increased benefits and complete satisfaction, while we make sure they realize the most optimal cost savings. With various financing options, multiple choices for Solar Power technology, and installation our customers value our extensive experience in creating customized solutions that meet their needs. After years of experience and more than 3,500 homes powered with the help of our solar brokerage services, we think the choice is clear! Direct Solar America is a subsidiary of Single Point, Inc. (OTC: SING).

Our second-to-none brokerage model benefits our customers by making sure they see increased benefits and complete satisfaction, while we make sure they realize the most optimal cost savings. With various financing options, multiple choices for Solar Power technology, and installation our customers value our extensive experience in creating customized solutions that meet their needs. After years of experience and more than 3,500 homes powered with the help of our solar brokerage services, we think the choice is clear! Direct Solar America is a subsidiary of Single Point, Inc. (OTC: SING).

Showing 1-10 of 17
Energy Efficiency Auditing questions, answered by experts

Smart glass doesn’t use a lot of electricity, and you can expect a standard window to add between $1 and $2 per year to your electric bills. Smart glass is proof that energy-efficient windows work. Although your smart windows may consume a little energy to operate, they can save enough energy to offset the costs. If you’re concerned about the minimal bump to your electricity consumption, you can opt for smart tint, which doesn’t require electricity to work.

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.

While many states require all new construction to undergo blower door tests, it’s not a requirement for existing homes. But in both cases, a blower test helps confirm that the contractor has sealed the exterior, that the type of ductwork installed is functioning properly, and that your home is as efficient as possible.

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.

Leaving lights on raises the electric bill, but not as much as having high-wattage light bulbs. The best way to save on electric costs is to swap your light bulbs to LED or CFL bulbs that use far fewer watts. You can also use smart lights and light switches to control usage via a smartphone or voice-controlled device.

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

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