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

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Local Reviews
for wilmette, il

Rated 4.9 out of 5 stars based on 8 customer reviews

Black Diamond Never Disappoints

Nick was terrific! He stayed all afternoon, testing one thing and then another until he found the problem. He then stayed longer to make sure our chirping noise didn't restart, and when it did, he worked continually to find the problem.

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Terrific Work, Great Attitude

Gerad and team performed careful work with an excellent attitude. We love Black Diamond and use it's technicians for HVAC, electrical, plumbing and sewer. You can't go wrong with this excellent company!

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Black Diamond Never Disappoints

Black Diamond is the most professional, knowledgeable, expert company ever to send technicians to our home. They are unparalleled in their abilities and service.

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Never a Negative Experience with Black Diamond

Knowledgeable. Smart. Courteous. Well-trained. Black Diamond technicians are all of these things. We've never had a bad experience. We have the utmost faith in this company and its professionals. They are absolutely top-notch! As for the cost: we think the prices are as they should be. We wouldn't expect "cheap" prices for such well-trained pros.

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Black Diamond People are Always Knowledgeable and Helpful

Keith spent about 2 hours servicing both of our furnaces. He was friendly and courteous, and called the company to get the answer to a question I asked. He did a fine job. I wish he had put a cloth on the floor where he was working, but I should've asked him to when I noticed the absence of one.

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Always a Pleasure

Doug came out promptly, diagnosed each electrical issue, produced a cost estimate and then set to work. All was done quickly, quietly and effectively. We are always pleased with the pro's from Black Diamond.

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Always Dependable, Courteous and Smart

We continue to be impressed with the people and the competence of Black Diamond. The technicians they send to our home are unfailingly knowledgeable, courteous and professional. They diagnose the problem quickly, provide a price and then set to work. We are always pleased with the job done, and they have now helped us with heating, cooling, electric and plumbing. Five Stars!!

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Consistently Excellent Service and Expertise

We use Black Diamond to service our two furnaces, our A/C system and, most recently, our plumbing. Every single employee is well-trained, courteous, efficient, and does what he says he will do. We could not be happier.

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Job Locations
for wilmette, il

Jack L.

Jack L. Job Checkin

Toilet issues


Luis E.

Luis E. Job Checkin

Leaking faucet


Luis E.

Luis E. Job Checkin

Toilet leaking.


Luis E.

Luis E. Job Checkin

Leaking toilet


Luis E.

Luis E. Job Checkin

Urinal.


Marlon G.

Marlon G. Job Checkin

Plumbing issues


Dave K.

Dave K. Job Checkin

Water leak


Dave K.

Dave K. Job Checkin

Clogged drains


Nick  C.

Nick C. Job Checkin

Furnace making noise


Raudel S.

Raudel S. Job Checkin

Water leaking under sink


Michael B.

Michael B. Job Checkin

Drain backing up


Luis E.

Luis E. Job Checkin

RPZ replaced.


Luis E.

Luis E. Job Checkin

3/4" mixing valve replaced


Luis E.

Luis E. Job Checkin

No hot water


Keith H.

Keith H. Job Checkin

Furnace giving fault code.