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

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Local Reviews

Rated 4.9 out of 5 stars based on 5371 customer reviews

Prompt, neat, excellent service

We have used Black Diamond several times and will continue to call them when we need help with our home. They always explain options and we have always had excellent service. Nick took care of our problem this time and would recommend him highly!

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Good and fast service

Great technition

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Consistently good

Black Diamond has been my go-to for HVAC services for years. Very satisfied.

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No More Watery Mess !!!

My water heater must have been a lemon because within two years I had a watery mess in my basement!!! The water seemed to come out so quickly that practically the whole room in the basement was filled with water! A number of items got wet & I don’t know if they’ll be good anymore☹️ Nick Christiansen really knows what he’s doing because after inspection, he was quick at work, spending half the time another company with two men took. He was also very polite & courteous, offering to dry up the floor with some rags since I have a back issue. Couldn’t of asked nor gotten better service!!! Thank you Black Diamond for being so quick to get service for me & for sending me such a reliable & courteous worker!!! It was also wonderful to find out that you have other services as well. Since I have health issues, there are things I can no longer do by myself. You’ll be hearing from me soon & I ask only that you send Nick Christiansen, no one else because I finally have a reliable as well as courteous handyman!!! In gratitude, V. D.

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Superb and speedy service

Daniel did a great job and took the time to make sure I understood everything he was doing and why. I found that aspect rare and refreshing

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Need your help

When Ken came to give me the estimate for 2 new ceiling fans, he said he would send the estimate to my email. He was here Wednesday - now it's Saturday and I haven't received it yet. He was very polite and seemed knowledgable but he never sent the estimate. Can you help??

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Great Service

The technitions arrived on time, went right to work without wasting any time and finished the job quickly. They left our place with no mess -almost cleaner than when they arrived and the job was done perfectly.

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Great Service

Nick was a very detailed technician.He took the time to explain the process used for the air conditioner maintenance.inspection. He did an awesome job.

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Back flow plumbing issue

Excellent customer service! We have used Black Diamond for years, new furnace, air conditioner and plumbing issues. We would recommend their services...... Thank you Black Diamond!

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Job Locations

Keo V.

Keo V. Job Checkin

Ac ptu


Raudel S.

Raudel S. Job Checkin

Urinal is not flushing properly


Nick  C.

Nick C. Job Checkin

Replace 50 gallon water heater


Dave K.

Dave K. Job Checkin

Sewer inspection


Keo V.

Keo V. Job Checkin

Ac check


Raudel S.

Raudel S. Job Checkin

Per customer needs water line for irrigation system


Raudel S.

Raudel S. Job Checkin

Pipe is leaking


Jorge S.

Jorge S. Job Checkin

Saddle valve replacement


Gerad A.

Gerad A. Job Checkin

Track lightning


Luis E.

Luis E. Job Checkin

Water heater


Raudel S.

Raudel S. Job Checkin

Toilet in the left side is not flushing properly


Raudel S.

Raudel S. Job Checkin

Sink is backing up


Christian V.

Christian V. Job Checkin

AC check


Nick  C.

Nick C. Job Checkin

AIR CONDITIONING NO COOL


Raudel S.

Raudel S. Job Checkin

Water line is leaking