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

Local Reviews

Rated 4.8 out of 5 stars based on 2493 customer reviews

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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Excellent service

Good work.

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Fast Great Service

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Good service

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Wonderful service

The serviceman was very knowledgeable and took time to explain to me.

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Excellent service

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Always great service from Mark!

Mark was informative and efficient, great job!!!!!!!!!

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Black Diamond is number one for a reason

Black Diamond has implemented a recipe for success and excellence in all areas they service. Their business formula is the best in the industry and I suspect they will only get better and better. When something works, keep it going and only twerk little things here and there through the years. Listen to your customers within reason and staff the company they way only Black Diamond knows how. The quality of all your technicians is second to none. Their knowledge, professionalism, understanding and caring for their customers and the services the perform our outstanding, to say the least. I have never had 4 or 5 people from same company come out to my home and I couldn't tell u which one I liked the most. Absolutely phenomenal experiences with Black Diamond and more to cone in the future!! Nice to see a company, a big company, that cares soo much about the customer. Keep up the great work!! Keep surrounding yourself with these great technicians and there will be a lifetime of awards for you. Your technicians sell Black Diamond on each and every job, they provide the foundation for a great past, present and future!!!!!!

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Job Locations

Jason S.

Jason S. Job Checkin

Drain clogged


Jason S.

Jason S. Job Checkin

Plumbing


Tom T.

Tom T. Job Checkin

Installing new Bryant furnace and AC


Tom T.

Tom T. Job Checkin

Install Amanda AC and furnace


Tom T.

Tom T. Job Checkin

Installing a Amana condenser


Tom T.

Tom T. Job Checkin

Installing Amana furnace and AC and humidifier


Tom T.

Tom T. Job Checkin

Installing Amana furnace and AC


Tom T.

Tom T. Job Checkin

Installing new Amanda AC and furnace


Tom T.

Tom T. Job Checkin

Re-doing dryer venting


Tom T.

Tom T. Job Checkin

Installing 2 Amana ACs


Tom T.

Tom T. Job Checkin

Installing Amana furnace and AC


Tom T.

Tom T. Job Checkin

Installing new Amana furnace and AC


Tom T.

Tom T. Job Checkin

Installing new Amana furnace and AC


Tom T.

Tom T. Job Checkin

Install Amana AC furnace and humidifier


Tom T.

Tom T. Job Checkin

Installing new Amana AC