1400 Miller Parkway
McHenry, IL 60050
866-369-3057

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Local Reviews

Rated 4.9 out of 5 stars based on 5410 customer reviews

Accurate assessment and fair price

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Very competent service. Excellent explanations. Very timely assistance.

Black Diamond had Nick out to our house within two hours of our call. Superior! Not only did Nick do an excellent job in fixing our air conditioner, he also gave excellent explanations and clearly outlined our options. We could not be more satisfied.

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Courteous, friendly, efficient. Great experience.

So willing to help me understand what was needed to fix my AC issues. The two gentlemen noticed a tire nearly flat on my car as they left and were kind enough to put air in it for me. Since I am older and unable to do this on my own, I was so appreciative of this. These gentlemen went above and beyond what was expected of them. They are truly an asset to the company and their profession. Jerilyn

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Very quick and thorough

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Great service

Keo was very professional and friendly.

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Efficient , friendly service

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Jorge was efficient, polite and gave excellent service

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Capable, responsive, friendly

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Black Diamond

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Outstanding Service!!

Jared, of Black Diamond, was simply outstanding! Great listener and he has the keen ability to assess the situation and come up with cost effective, yet high quality outcomes! Bravo for a job well done!

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Job Locations

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Ejector pump.


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Water heater


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Shut off valve.


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Glass filler


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Kitchen faucet replaced


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Water heater


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Water heater


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Water leak.


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Water leak.


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Toilet


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Leaking water heater


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Hose Bibb


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Floor drain clogged


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Shower leaking


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Inspection sewer line.