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Business ProfilePlumbers in Rockford, Illinois

Black Diamond Plumbing & Mechanical Inc.

Black Diamond Plumbing & Mechanical Inc.

Founded in 1999 as a plumbing and sewer company, Black Diamond Plumbing & Mechanical also provides electrical and HVAC services. It serves Rockford within its broader Chicagoland service area.

Last Updated October 2, 2026.

Business Highlights
  • The company describes its plumbers as licensed.
  • The company offers a 100% Comfort Guarantee.
  • The company describes itself as locally owned and operated.

Service Area

Rockford; Chicagoland area.

Active Business Listing

Black Diamond Plumbing & Mechanical Inc. is one of 8 plumbers ProsGrade lists in Rockford, Illinois.

Active
Public local listing
Listing details

11 services listed, including Plumbing repair, maintenance and installation, Emergency plumbing and Water treatment. Open 24 hours, 7 days a week. Rated 3.9 from 99 reviews.

  • Verified listing details
  • Service information
  • Customer review signals
  • Photo gallery
  • Public contact information
  • Published local profile

How This Business Compares

How Black Diamond Plumbing & Mechanical Inc. compares with the other 7 plumbers on ProsGrade in Rockford, using public Google ratings and review counts.

  • One of 8 Rockford plumbers on ProsGrade.

Trust Signals

Phone lines listed as Open 24 hours for scheduling and urgent issues.

Services Covered

11 services
  • Plumbing repair, maintenance and installationResidential and commercial.
  • Emergency plumbing
  • Water treatmentReverse osmosis, water softeners and filtration.
  • Sewer and excavationSewage and septic systems.
  • Well serviceWell-pump installation, repair and replacement.
  • Pipe repair and replacement
  • Sinks, faucets and drains
  • Water heaters
  • Toilet services
  • Sump and ejector pumpsBackup systems.
  • Garbage disposal

Reviews

What customers say

Positive plumbing accounts describe prompt emergency responses and personable, informative technicians. Critical accounts raise separate concerns involving relatives’ service: a homeowner says her grandmother’s plumbing job was left undone, the promised camera visit never came, and the company offered to inspect only after a lawsuit threat without refunding the payment. A furnace quote for a relative also drew a challenge; the reviewer says the company later called it labor-only, the heat exchanger was under warranty, and Bryant covered the labor.

Customer Reviews

Heather Mcnolo

If I could give 0 stars I would. My senior grandmother was supposed to get work done with black diamond... they came did nothing and said they were coming back with a camera. They never did or called her back when she left messages. My grandmother had to go to a different company and got the work needed done. She never heard anything still until she called threatening a lawsuit... She finally got a call back with them saying they will come out to look at the issue.. They will not give her the money she gave them back after they did not attempt to fix the issue. I would never go here and I would advise anyone not to either. Taking advantage of seniors is sickening!
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Marvin Horsman

MIL had them out when furnace quit, heat exchanger is under warranty, from Bryant they never mentioned that to her, told her $1700 to replace it, when I confronted them about it was told that was labor only, (that is also paid by Bryant, do to the class action law suit) got another bid for labor only max with no warranty was $700. Just because she's a senior, and alone I think they were very taken advantage of her.
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Diane Fagen

I went to my basement to put some clothes in the washing machine and found water on the floor with a spray of water coming from a pipe. I called Black Diamond and they understood the emergency and shortly their plumber arrived. Michael H was polite, efficient, and a born educator. He replaced the spouting pipe with a copper one (I was delighted with that) and answered questions I had about the temperature of the new water heater I had had installed in September (not by Black Diamond). He reset the temperature on the water heater (it was scalding hot the moment I turned on the tap). I told him about a different issue I was having and he explained the problem, but said he could not correct it at this time since he had another call. I told him I would call the Diamond again to have that handled. Michael was a wonderful representative for Black Diamond and I would hope to have him respond when I call next week. People had told me for years that Black Diamond was VERY expensive so I had avoided calling them. I want to go on record saying that the company is more reasonable than several of the other companies with which I have done business in the past Black Diamond is not only more reasonable but they finish the job correctly.(unlike one company whose representative reversed the hot and cold taps in the however). Thanks Michael H and Black Diamond! I look forward to making an appointment next week.
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Erik Hopp

Fourth of July weekend, no one else in the area answering their “24/7” phone lines, well pressure tank supply line burst and flooded part of my basement… one call to Black Diamond and they answered immediately! Charlie came out to us with a smile on his face ready to help get our water back on and we’re so thankful! Thank you Charlie and thank you Black Diamond!
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Butterfly W

We had Nick Br from Black diamond plumbing & mechanical come out this morning to help with a leak in our basement. He arrived so quickly and was really nice. He found the issue that was our water softener and he fixed everything. We are very happy with his work and the company. Would definitely recommend and use them again if needed.
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Frequently Asked Questions

Does Black Diamond Plumbing & Mechanical offer emergency plumbing?

Yes. It lists 24/7 emergency plumbing; it says callers speak with a team member and a licensed technician is dispatched.

How does Black Diamond begin a well-service project?

A well-service project starts with a consultation about the property’s needs, followed by planning and installation.