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Diamond Group LLC

5.0(
5
)
Concrete Flatwork Repair & Resurface, Concrete Floor Coating Apply, Concrete Floor Coating Application,

About us

Diamond Group LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Business highlights

Se habla espanol

Amenities

Free Estimates

Yes

Accepted Payment Methods

  • CreditCard
Reviews
5.05 Reviews
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Number of StarsImage of DistributionNumber of Ratings
5
100%
4
0%
3
0%
2
0%
1
0%
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Showing 1-5 of 5 reviews
Joel C.
Dec 2025
5.0
Google Review
Carlos and his team did a phenomenal job! He explained the process end to end, provided options and communicated well throughout the process. Highly recommended!
Amanda B.
Dec 2025
5.0
Google Review
Carlose and his crew at Diamond Group LLC were amazing from start to finish. He answered my call on the first ring, came out the same day for an estimate, and was patient while I chose from countless color options. Our garage floor was stained, cracked, and in rough shape, but in just one day they transformed it into a flawless, show-worthy space. The team was kind, respectful, hardworking, and a pleasure to have around. Their price was very competitive, yet the customer service and quality of work were far above and beyond. Within 72 hours we were walking and driving on the new floor, and I couldn’t find a single imperfection. I highly recommend Diamond Group LLC. If I could give 10 stars, I would. Happy customer. :) Amanda B - Hillsboro Oregon
Janet P.
Dec 2025
5.0
Google Review
Carlos and his team did an amazing job on our 1978 gatage floor. It was cracked, stained and had lots of paint spilled on it. It looks brand new! The process took one day, with sanding, filling and more sanding before it was ready for the Polyurea coating, flakes and final coating of Polyaspartic. We opted to have the stem walls done to and it is seamless and beautiful! They did an excellent job of cleaning up at the end! The Diamond Group LLC team is professional from beginning to end. I would recommend them highly!
Tamera E.
Dec 2025
5.0
Google Review
Carlos and his team were very prompt and professional from start to finish. We could not be happier with the finished product, it looks amazing.
Christina O.
Dec 2025
5.0
Google Review
Excellent experience, the crew arrived promptly, detail, matriculate..: great guys!

Licensing

Licensed*

Trade License Number

250326

Trade License Locale

OR

Trade License Expiration

04/03/2026

State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page.

*Contact business to see additional licenses.

FAQ

Diamond Group LLC is currently rated 5.0 overall out of 5.

Monday: Open All Day Tuesday: Open All Day Wednesday: Open All Day Thursday: Open All Day Friday: Open All Day Saturday: Open All Day Sunday: Open All Day

Diamond Group LLC accepts the following forms of payment: CreditCard

Yes, Diamond Group LLC offers free project estimates.

No, Diamond Group LLC does not offer eco-friendly accreditations.

No, Diamond Group LLC does not offer a senior discount.

No, Diamond Group LLC does not offer emergency services.

No, Diamond Group LLC does not offer warranties.