Black Diamond Plumbing & Mechanical Reviews 2

TrustScore 4 out of 5

3.8

While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more

To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more

Company details

  1. Plumber
  2. Electrician
  3. Handyman

Information provided by various external sources

Black Diamond Plumbing & Mechanical is a full HVAC, plumbing, and electrical company serving the Crystal Lake, IL area. Call today for service.


Contact info

3.8

Great

TrustScore 4 out of 5

2 reviews

5-star
4-star
3-star
2-star
1-star

How this company uses Trustpilot

See how their reviews and ratings are sourced, scored, and moderated.

Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Rated 5 out of 5 stars

Emergency assistance with a leak in the basement

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 shower).
Thanks Michael H and Black Diamond! I look forward to making an appointment next week.

4 December 2025
Unprompted review
Rated 5 out of 5 stars

Fixed a major plumbing disaster shortly after move-in

When I experienced a major plumbing disaster shortly after moving into my new house, Black Diamond was able to get a technician out to deal with my issue even though it was a Sunday. While that initial visit did not fix my problem, the followup visit did. The piping from my main sewer line was misaligned, likely at the construction of the house decades prior, and was going to be a serious problem leading to ongoing clogs if not addressed. It required jackhammering the concrete around the relevant piping in my basement but the end result was new pipe that ensured a functioning toilet and shower which could not clog in the same way ever again. The nature of the service was expensive, but all three technicians over two visits were highly skilled and completely professional, even giving me a discount for the first visit by changing for the attempt, rather than the considerable time invested.

7 February 2025
Unprompted review

Is this your company?

Claim your profile to access Trustpilot’s free business tools and connect with customers.

Get free account

The Trustpilot Experience

Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.

Companies can ask for reviews via automatic invitations. Labeled Verified, they’re about genuine experiences.

Learn more about other kinds of reviews.

We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.

Learn about Trustpilot’s review process.

Here are 8 tips for writing great reviews.

Verification can help ensure real people are writing the reviews you read on Trustpilot.

Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.

Take a closer look