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

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Local Reviews

Rated 4.9 out of 5 stars based on 5414 customer reviews

Excellent Service. Truly appreciate being Crystal Club Members

Christian was both competent and personable. Well done! Being Crystal Club is great,

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Another Outstanding Experience

We purchased a 3 year planned maintenance contract and recently had a service call related to planned maintenance service. Christian V was the technician. He was great! Personable, informative, and through. Informed us of every process. He's another example of the great staff from Black Diamond.

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Best customer service!

Jorge was efficient, explained what was to be done and what was done, left areas clean, provided proposal for item that is not working. We really appreciate him!

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Expert service on a challenging job

Very professional replacing waste pipe in a ceiling surrounded by water and electrical lines

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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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Job Locations

Luis E.

Luis E. Job Checkin

Clogged toilet


Luis E.

Luis E. Job Checkin

Toilet & sink clogged


Christian V.

Christian V. Job Checkin

Furnace check and water heater flush


Luis E.

Luis E. Job Checkin

No hot water


Luis E.

Luis E. Job Checkin

Sewer line.


Luis E.

Luis E. Job Checkin

Water heater


Luis E.

Luis E. Job Checkin

Water leak.


Luis E.

Luis E. Job Checkin

Toilet leaking


Luis E.

Luis E. Job Checkin

Toilet


Luis E.

Luis E. Job Checkin

Ejector pump , shower cartridge & sink.


Luis E.

Luis E. Job Checkin

Water heater


Luis E.

Luis E. Job Checkin

Clogged main line


Luis E.

Luis E. Job Checkin

Sewer backing up.


Luis E.

Luis E. Job Checkin

Hose Bibb replaced


Luis E.

Luis E. Job Checkin

Water leaks