3548 35th Street
Rockford, IL 61109
815-873-6022

Local Reviews

Rated 4.8 out of 5 stars based on 2500 customer reviews

Appreciated the early arrival, very efficient, left work areas very neat and clean.

Appearance very neat and professional. Very friendly and answered all of my questions clearly so that I understood what was being done. Seemed very happy and even whistled while he worked! Even with the discount, the price seemed high, but the finished job looked very good, and there were no leaks, so we are very satisfied!

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Great service, amazing to work with!

Great customer service they stayed in contact with us until the technician arrived. Technician was very friendly and did a great job explaining what was going on with my water heater. He gave me options and prices of what absolutely needed to be done, along with explained further issues that were headed my way since it was a rather old unit. Price seemed fair, and did the repair immediately (I was lucky he had the new unit I needed) even though it was after hours at no extra cost.

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Plumbing work done

I was very happy with the work that the tech done in my home and he was very courteous..

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Great friendliness and service

Kevin did an outstanding job and would recommend his talents anytime

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Great service.

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Great service

Jason provided terrific help to solve a plumbing issue quickly and cost effectively.

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Great service

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Awesome review

Jason was very friendly, informative, thourough, neat and made the experience stress free. He explained the other services as well. It was nice to see a professional so hapoy to be with the company they work for. We will be continuing services with your company as the need arrises. Thank you again for providing a professional who didn't mind explaining things to a female!

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Great Service, friendly installers!

I was kept up to date on the installation. And shown how the new products worked.

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Great service as always

I had used Black Diamond on my own property for over 10 years..so when my other property experiences issues with HVAC I always call them...as usual, the service was prompt and well done. They may not be the cheapest but I’ve always been treated well and their workmanship is excellent. New AC was due...over 14 yrs old unit...and they were able to diagnose and replace in 48 hours. My tenant is happy and so am I. And they were able to handle it all over the phone and email since I no longer live in Illinois

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Job Locations

Kevin D.

Kevin D. Job Checkin

Repiped the pvc under kitchen sink and unclogged kitchen sink drain.


Kevin D.

Kevin D. Job Checkin

Water leaking from tub


Kevin D.

Kevin D. Job Checkin

Install 2 hose bibs and change main valve.


Tom T.

Tom T. Job Checkin

Installing Amana furnace and AC


Tom T.

Tom T. Job Checkin

Installing new Amana furnace and AC


Kevin D.

Kevin D. Job Checkin

Replaced sump pumps.


Kevin D.

Kevin D. Job Checkin

Install water heater.


Tom T.

Tom T. Job Checkin

Installing new Amana furnace and AC


Kevin D.

Kevin D. Job Checkin

Installing two lavatory faucets


Kevin D.

Kevin D. Job Checkin

Install kitchen faucet


Kevin D.

Kevin D. Job Checkin

Kitchen sink plugged


Kevin D.

Kevin D. Job Checkin

Kitchen sink plugged


Zac S.

Zac S. Job Checkin

No cooling


Kevin D.

Kevin D. Job Checkin

Gas leaks identified


Kevin D.

Kevin D. Job Checkin

Installing a water heater