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Crystal Lake, IL

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Building Energy Experts

3.3 (18 reviews)
Open • 9:00 am - 5:00 pm

Services - Building Energy Experts

Solar system installation

Building energy audit

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4 years ago

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2 years ago

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Anthony S.

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2 years ago

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Anthony S.

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3 years ago

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6 years ago

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6 years ago

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Anthony S.

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11 years ago

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7 years ago

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7 years ago

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8 years ago

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12 years ago

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Review Highlights - Building Energy Experts

“Anthony did a great job in terms of explaining everything his company would do and why they take the approach that they do.”

Mentioned in 7 reviews

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Kapital Electric - Charger in garage

Kapital Electric

(124 reviews)

They came to check my EV charger. They were almost an hour late. They were able to find the…read morecause and did not charge me. ComEd was not giving me the full 250v to my panel. Only 216. Causing my car to charge slower than expected. ComEd is looking into it.

I decided to go with Kapital Electric as my EV charger contractor of choice through word of mouth…read moreand was not disappointed I originally called to inquire about a rebate program associated with ev charger installations in specific Chicagoland areas and they made the application process really seamless. The staff is very responsive - theyll call, email, and even text you to work out anything and communicate as needed They give you the option to virtually provide photos of your setup for the initial proposal of an installation without requiring them to send someone to inspect things, which saves time for both parties. Once received, they'll verify the feasibility of the installation and draw up an official proposal for your review. I had a couple prerequisites to handle prior but once ready, they are quick to get back to you with all of the official documents From there, theyll send the engineers/electricians down to do the installation. Vasili handled my job and did amazing work. Super friendly and knowledgeable, great conversation, finished in 2 hours. He walked me through the game plan, insisted that I prioritized what location fit my preference over what would be easier to do, and executed it independently in a timely fashion. Overall very satisfied with the service from Kapital Electric :)

Windfree Solar

Windfree Solar

(14 reviews)

Sauganash

Deceptive business practices!! A couple of years into solar…read morepanel ownership. Here's some things they don't tell you when they sell you a system for $25,000. Your warranty isn't worth the paper it's printed on. Whenever there is an issue with your system, you will get a notification that tells you there's an issue, but doesn't tell you what the issue is, that requires a technicians visits which is $180 I recently had a panel that is under performing, which, after a technicians visit deemed to be a manufacturers defect. So my kick ass warranty should cover this right? Wrong! The manufacturer will replace the panel, but I'll have to pay for shipping, which is approximately as much as a brand new panel would cost. Also, I have to pay for a technician to install the replacement panel. So when the sales person sells you peace of mind that the warranty will cover you - don't believe a word of it. I have long recommended solar panels to my friends. I have also long recommended not going near this chop shop enterprise. They are Temu version of what a solar company should be. Project management is a joke. See my earlier review for that debacle. Product support is an even bigger joke. I wish I could give zero stars.

My experience with Windfree Solar Company has been awful. Consider carefully reading the contract,…read morenoting if subcontractors would do the solar panel installation, if so, will Windfree cover losses, if applicable. In addition, make sure all the permit is pulled with your municipal, along with the correct schematics for the solar panels, both were an issue here. After speaking with Adam Perri, Director of Windfree Solar, I was told, due to the workers were subcontractors, the destruction of my personal outdoor equipment and garage was not Windfree problem. All the woes, leaves me with the savings from the schematics of 77% savings, panned out to 18%. Monitoring for the solar panels based on the information I was given was a country outside the U.S., with no option to opt out of 3rd party advertisement. No thank you! Value=NONE!

Paragon

Paragon

(92 reviews)

Paragon Insulation has done an excellent job for me twice this year. The first time in January, I…read morehad Randy come out to quote attic sealing and insulation. While he was there to provide the quote, he noticed the kitchen floor was really cold (he took off his shoes when he entered the house). He pulled out his thermal camera and we saw the floor was 30-40F! I had noticed that area of the kitchen was cold in winter, but didn't realize it was coming from the floor, where kitchen is cantilevered out past the foundation wall. He proposed insulating the cantilevered area with spray foam, and then said he could insulate all the rim joists in the basement for the same price. A week or so later, while he was onsite doing the insulating, I mentioned I was going to finish the basement later in the year, and expected to use 3 inch foam panels. He suggested using spray foam instead since that would give me a few inches more space in the room. He gave me a price and I said I'd think about it. As I thought about it, I realized getting a few more inches in the room, and also getting a better sealing product would be worth it, and would save me many hours of labor and a lot of material costs. In summer, I started work on the basement project, and once I had the framing up and electrical roughed in, I called (now July) to schedule the spray foam. Randy honored the price from January, scheduled the job quickly, and it looks great! Something I especially appreciate about Randy and Paragon is that the guy who quotes the job actually does the job; it's not some sales guy, it's the owner who quotes AND does the work! Because of that, any questions get answered and you know exactly who is accountable for quality and completion. I did get other quotes for the attic, and Paragon was very competitive. I really appreciated Randy's suggestions, and they did not feel like a sales pitch; it felt like I was getting good options to consider that would solve a problem I had.

Nobody enjoys pouring money into the parts of their home they never see -- attics, crawl spaces,…read moreand the like. But when those areas need attention, it's essential that the work is done right and by someone you can trust. Randy and the team at Paragon Insulation & Services delivered an experience I'd recommend to anyone. My attic was poorly ventilated -- damp, musty, and overdue for attention. After deciding to bring in a professional, Randy came out to my home, thoroughly assessed the problem areas, and put together a detailed quote on the spot. The scope of work included removal of the existing insulation, air sealing around all attic entry points, sanitizing, air baffle installation, and installation of new Weather Blanket cellulose insulation. The new cellulose achieves an R-value that meets or exceeds Illinois code requirements. Paragon's pricing was competitive, though admittedly a bit higher than some of the larger corporate outfits. What made the difference was Randy's willingness to walk me through the entire plan and clearly explain what justified the investment. That transparency, combined with the comfort of working with a local, owner-operated business, made the decision easy. The crew came in and completed the job in about half a day -- fast, efficient, and clean. The entire process was documented with photos and videos, all of which were included with the final invoice. While up in the attic, they even took the time to correct some substandard work a prior contractor had left behind on my bathroom exhaust fans. I couldn't be happier with the results. I've already noticed a meaningful improvement in temperature consistency and overall comfort throughout my home. If you're looking for a trustworthy, professional insulation contractor, I wouldn't hesitate to recommend Paragon Insulation & Services.

Building Energy Experts - solarinstallation - Updated October 2026

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