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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon33
    Verified energy efficiency auditing services reviews

Find Energy efficiency auditors in Island Lake

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
1032 local quotes requested
46 years of experience

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


Local home handyman

No reviews yet

Local home handyman

No reviews yet

35 years as a carpenter with a vast experience in the trade . All aspects of carpentry Insulation/ energy audit Solid surface counter top repair and sink replacement and re finishing Trim work Cabinets We open and close cabin spring and fall Attic fans Gazebos and pergola Windows and doors Hardware

35 years as a carpenter with a vast experience in the trade . All aspects of carpentry Insulation/ energy audit Solid surface counter top repair and sink replacement and re finishing Trim work Cabinets We open and close cabin spring and fall Attic fans Gazebos and pergola Windows and doors Hardware


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).



Avatar for USA Alarm Service, Inc

USA Alarm Service, Inc

No reviews yet

USA Alarm Service, Inc

No reviews yet
29 years of experience

USA Alarm is a national company that has more than two decades of experience and an award winning command center that protects more than 700,000 homes and businesses through the United States, 24 hours a day and 7 days a week. We have offices located throughout the US, with two main offices in Indianapolis, Indiana and Post Falls, Idaho.

USA Alarm is a national company that has more than two decades of experience and an award winning command center that protects more than 700,000 homes and businesses through the United States, 24 hours a day and 7 days a week. We have offices located throughout the US, with two main offices in Indianapolis, Indiana and Post Falls, Idaho.


Avatar for EnergySavings

EnergySavings

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EnergySavings

No reviews yet
8 years of experience

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 Wind & Solar Energy Design Co

No reviews yet

Windfree Wind & Solar Energy Design Co

No reviews yet
16 years of experience

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 Electric

No reviews yet

TCL Electric

No reviews yet
24 years of experience

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

5.00(
2
)

Whole Property Services

5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

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.


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!

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Energy Efficiency Auditing questions, answered by experts

Smart home upgrades can be worth the money. Several upgrades, including smart thermostats and ceiling fans, can help reduce your energy bills. Others make life more convenient, freeing up your time to do what you love (or get more work done). And some smart home upgrades, such as entertainment systems, simply make life more enjoyable. All are worthy causes.

A home energy audit costs about $420 on average, ranging from about $100 to $2,250 or more. Cost factors include the size of your home, the type of testing, and the thoroughness of the audit. A Level 1 walk-through inspection will cost between $150 and $200 for the auditor to point out inefficiencies in your home. On the other hand, a more thorough Level 3 audit with testing and a detailed report will cost about $900.

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.

Window AC units use a fair amount of electricity during use, but the usage pales in comparison to central units. As a matter of fact, window units use around a third of the amount of energy as a central AC. On average, a window air conditioner costs between $15 and $40 per month to run, though this depends on a number of external factors.

The Island Lake, 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.

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"