About Us

About Us

Welcome to Detroit Diamond Drilling, also known as DDD. Since 1961, we’ve been a key player in the concrete coring, cutting, and construction supply industry. Plus, we’re Detroit’s oldest Stihl dealer! We’re all about delivering top-notch service and products, and we’re not stopping anytime soon.

Our Owners and Legacy

Meet our leaders, Jim Grunewald and Kirt Hardoin. They joined the DDD crew in 1969 and 1973, and they’ve truly revolutionized our operations! Under their guidance, DDD has become a successful small business, always prioritizing quality and safety. Their unwavering commitment is what keeps us going.

We’re a family-owned business, and we’re proud of it. Our family values shine through in all we do, from our top-quality work on projects to our warm customer service. We love building long-lasting relationships and exceeding expectations.

The City of Detroit

Detroit, MI, has been our home base for over 63 years. Detroit Diamond Drilling has not just been a part of the city’s struggles and prosperities but has also left a significant mark on its landscape. Our work can be seen in some of Detroit’s most iconic buildings, including the famous Renaissance Center, showcasing our expertise and commitment to the city.

Industry Leadership and Trusted Professionals

Leveraging over 63 years of experience, DDD stands out as a leader in the industry. Our long-standing relationships with suppliers, manufacturers, and customers are a cornerstone of our success. These partnerships allow us to deliver exceptional service and innovative solutions, ensuring we meet and exceed our clients’ expectations.

Our Commitment to Quality and Safety

At DDD, safety and quality are not just buzzwords; they are the principles that drive us. We adhere to rigorous safety protocols and quality control measures, ensuring every project is executed with the utmost care and professionalism. Our unwavering commitment to these standards has earned us our reputation as a trusted business and partner in the construction and drilling industries.

 

Looking to the Future

Detroit Diamond Drilling remains committed to innovation and excellence as we look to the future. We are proud of our history and excited about the opportunities ahead. Our mission is to continue providing top-tier concrete cutting and coring services, products, and solutions, contributing to the growth and development of the metro Detroit area and beyond. We are confident that our dedication to innovation and excellence will continue to set us apart in the industry.

David Deinek
15:57 18 Feb 14
Great shop. Hard working tool sales and repair.
Rodney Ouellette
00:23 05 Aug 21
They repaired my dinosaur of a jack hammer for a reasonable price and did a good job thanks guys
Cara and Foo
20:12 30 Mar 15
Always have the right advice and parts.
Rufus Jackson
19:07 30 Mar 22
Staff was very professional and polite
David Hughey
00:59 08 Feb 22
Best diamond cutters
Richard Holman Jr
04:49 21 Oct 18
They're cool
Paulo Ontiveros
16:30 13 May 21
Steves the man .
Mechelle Ross
01:32 16 Aug 22
Contractor, bought a chainsaw it was perfect. The product was top of the line and price was great, will use them again thank you guys.
Cornelius Logan
17:02 27 Sep 19
No1 place for lawn mower and etc
Andrew Mitchell
15:14 13 Sep 19
Nice people and very helpful
Marlow Tree Service LLC
16:51 08 Apr 22
Very friendly well equipped with everything but they are pricey
notoriano565
22:42 18 Aug 23
Always have everything we need
Steven Hamade
15:59 05 Aug 23
Great people
Joe Drinkhorn
12:40 20 Oct 22
Very helpful and unlike most stihl dealers, not arrogant or rude. Great place!
T C
14:36 17 Feb 24
I buy most of my parts at DDD and I have always had a great customer experience. I mostly appreciate their knowledge of the products they sale. For the customer that had a unpleasant encounter, I'm black and I get it. But everything is not about race. We all can have a bad day or something weighing on our mind.
Matthew Marlow
13:54 09 Apr 22
Great place. Good people. Fair prices.
Gerald Zettel
16:12 28 Jul 18
Great place to buy blades and drilling equipment and all safety equipment
Jeff Rothenberg
00:29 03 May 24
For all your Chainsaw needs. There the best
Joshua Eagle
17:43 22 Jul 19
Great staff very knowledgable
Twinn S
19:09 02 Aug 22
The salesmen here are very helpful.
Joe Coppola
10:41 30 Jun 19
Awesome place
Kamrin Shafer
21:13 08 Mar 18
These guys are great, friendly knowledgeable and fair.
Tyler Shaw
23:53 06 Feb 24
Sale and repair Stihl (electric or gas operated) tools onsite.
Michael Krajnak
22:43 23 Jul 18
Great customer service, great service people they really know what they are doing.
Paul Pesaros
01:01 19 Sep 24
I've been going to DDD for over 30 years. My office and our projects are about 10 miles north of their shop and my yard is probably 20 miles north of their shop. That says it all. Worth every mile every time.
jeff
10:58 26 Jun 19
Everything you need and great helpful staff
Santos Solis
14:27 15 Jun 22
Nice price in good atencion
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