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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon29
    Verified energy efficiency auditing services reviews

Find Energy efficiency auditors in Crystal Lake

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
918 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.

"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 RSS Solar

RSS Solar

No reviews yet

RSS Solar

No reviews yet
Free onsite estimate

We make solar simple-- We are dedicated to making solar energy affordable and accessible to everyone-- with ZERO upfront costs.* Your home can become its own tiny power station and generate plenty of reliable energy, all while reducing your electricity bill. Plus, it doesn't hurt that your greener lifestyle will help your state achieve its renewable energy goals.

We make solar simple-- We are dedicated to making solar energy affordable and accessible to everyone-- with ZERO upfront costs.* Your home can become its own tiny power station and generate plenty of reliable energy, all while reducing your electricity bill. Plus, it doesn't hurt that your greener lifestyle will help your state achieve its renewable energy goals.


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

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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

No reviews yet

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


Chicago Building Inspections, Inc.

4.25(
4
)

Chicago Building Inspections, Inc.

4.25(
4
)
Customers say: Super punctual
17 years of experience

We provide traditional pre-purchase home and building inspections with an emphasis on energy and moisture related issues or concerns. From the high rise studio condo to large multi-family or commercial buildings, we have significant experience to better help you understand the ins and outs of your future purchase or existing property.

"Very thorough inspection and detailed report."

MOLLY M on February 2018

We provide traditional pre-purchase home and building inspections with an emphasis on energy and moisture related issues or concerns. From the high rise studio condo to large multi-family or commercial buildings, we have significant experience to better help you understand the ins and outs of your future purchase or existing property.

"Very thorough inspection and detailed report."

MOLLY M on February 2018

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Energy Efficiency Auditing questions, answered by experts

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.

A small sump pump running infrequently uses an average of 10 kilowatt-hours (kWh) of electricity per month. The average cost for electricity is $0.171 per kWh. The size and use frequency affect how much electricity it uses. Sump pumps average one-third to one horsepower (hp) motors. One hp is equal to 745.7 watts. Watts multiplied by the time your pump is running divided by 1,000 equals your average kWh. Multiply kWh by your average cost of electricity. In areas with high rain or a marsh basin, the average cost can be as high as $15-$25 a month.

Yes, advising on models that save electricity and reduce utility bills.

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.

An average, 400-square-foot electric heated driveways consume approximately $3 per hour in terms of electricity. The price may slightly fluctuate depending on your local energy cost. A simple formula to calculate your heated driveway’s total wattage consumption is by multiplying the square footage by 50 watts and then dividing it by 1,000 to get the kilowatt number. Multiply that with your local energy cost per hour and there you have the hourly operating cost.

The Crystal 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"