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

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Local Reviews
for mundelein, il

Rated 4.9 out of 5 stars based on 20 customer reviews

prompt, efficient

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long-term problem solved

I've been trying to install a bathroom vanity, and its plumbing, for over a year. Giving up, I called Black Diamond. The guy was on time and quickly set to fixing the problem, with much less fuss than I expected. The job was completed without any drama, despite some complications which I'd never have resolved on my own. I'm very pleased with the result.

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Hot Water Heater & Sump Pump

AMAZING! Listened, trouble shot problems, great suggestions, and cost savings. A great choice! And they came out same day!

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great service

Great service. Will use Black Diamond every time.

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good work

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great service

Love the fact that you can call on a Sunday night and have a service person out the next day if need be. I've had different service personal and they are equally experienced and professional.

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prompt and competent service. good prices

Good back office help. Very courteous and helpful. Quick response time. People doing job competent and fair in pricing. Personable people. Always use Black Diamond. Will also in the future. Neil Giarratana

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Great Service

The two young men were very professional.and friendly.

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Senior Home owner

Good service and attitude.

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Outstanding Response Time/Excellent Service

Just cannot say Thank-you enough after my recent first encounter wth you folks. Our furnace went out... of course, at 10:00 PM last Thursday, the coldest day of the year. I desperately called 4 other well-known companies. Two never even answered the phone and the other two said they could be out by 1:00 Friday afternoon! You folks answered almost immediately, and Pat, who was just wonderful, said "Sure, no problem, we can have someone out there within a couple of hours...Just put on another sweater, grab a blanket and we'll have you up and running tonight"...Unbelievable!.. Exactly the words I wanted to hear. Furthermore, Jason, the technician was terrific. He showed up before midnight, was very friendly, helpful, got to work immediately, diagnosed the problem, and, indeed, had us up and running in about an hour... Unbelievable! I would not hesitate for a moment to recommend you folks. Just cannot say Thank-you enough.

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Job Locations
for mundelein, il

Raudel S.

Raudel S. Job Checkin

Toilet water not going down


Raudel S.

Raudel S. Job Checkin

Cold water beverage station is leaking


Luis E.

Luis E. Job Checkin

Sewer backing up


Luis E.

Luis E. Job Checkin

Sump pump


Luis E.

Luis E. Job Checkin

Leaking water heater


Raudel S.

Raudel S. Job Checkin

Per customer needs washer machine disconnected


Raudel S.

Raudel S. Job Checkin

Water heater is not heating


Luis E.

Luis E. Job Checkin

Main line clogged


Jack L.

Jack L. Job Checkin

Plumbing issues


Jack L.

Jack L. Job Checkin

Water heater issues


Jorge S.

Jorge S. Job Checkin

Water leak in the crawl space


Raudel S.

Raudel S. Job Checkin

Per customer needs kitchen drain line rodded


Jesus G.

Jesus G. Job Checkin

Emergency shut off valves


Michael B.

Michael B. Job Checkin

Rpz testing


Luis E.

Luis E. Job Checkin

Gas line repair