Dave was absolutely fantastic!!

Brett from Lake in the Hills, IL

Great customer service from the first phone call. I have a business in CL and hear your commercials on Star 105. Everything you advertise is spot on!

Consistently good

MartieG from Lake in the Hills, IL

Black Diamond has been my go-to for HVAC services for years. Very satisfied.

Great service

Kathy from Lake in the Hills, IL

Knowledgeable, friendly, and does a great job! Will definitely use again !

GREAT RESPONSE TIME AND SERVICE

Craig from Lake in the Hills, IL

David did a fantastic job.

Absolutely Perfect

David from Lake in the Hills, IL

You guys did a great job! This was a lot of work but you guys tackled it!

Great Service. From the initial Call to the completed job !

Ron from Lake in the Hills, IL

Black Diamond and Dave provide excellent service. Quality Workmanship and explained every detail from start to finish...

Impressed

Holtorf from Lake in the Hills, IL

I was very impressed with the staff and Black Diamond. Had several issues with a furnace install and they stuck with it til all issues resolved. Kyle, Alex, Oscar, and all the rest I dealt with were very pleasant and patient and took care of any and all issues. They were neat, and cleaned up after the jobs were done. Will for sure use them again. CLH

Great service

L from Lake in the Hills, IL

Will use them again

Jayme from Lake in the Hills, IL

He was on time. He was very helpful. Explained everything. He was done in an hour I would use them again. Great pricing

Awesome

Sandy from Lake in the Hills, IL

Awesome

Pricing too high

Estelle from Lake in the Hills, IL

Pricing was ridiculous but was in a time crunch so opted to pay enormous price for the work. Will not do this again.

Great Work, very Professional

Juraz from Lake in the Hills, IL

The team was on time and have done a very good job, also gave expert advice and sent the before and after pictures

Great service

Pam from Lake in the Hills, IL

Great Service. Very Kind. Helpful

Xicotencatl from Lake in the Hills, IL

Great Service

Megapictureman from Lake in the Hills, IL

BD service people are always clean!