Call us now for a free roof inspection: 720-420-0850

We measure success through our clients’ satisfaction.

Here’s what they have to say:

Guarantee Construction Group is a courteous, professional and personable company. Upon introduction and submitting their quote they walked me through every step of the process. By the time I made my decision, which I must confess, I scrutinize contractors and sales people to the enth level. I felt comfortable and in good hands with choosing GCG. One of the things they impressed me with, was catching a city code requirement the insurance company either missed or… Let's just say, this had to be fulfilled or my roof would have been in violation and I may have had to come outta pocket, not cool. One of their owners Dan and their office staff took care of everything; all paperwork and bottom lines with my insurance company were adjusted. I was wait mode for the project to be complete, and it was completed, ahead of schedule?? My intentions are to share my experience, they (GCG) are easy to work with and they do what they say.

Tanya Dobbins

When a business has the opportunity to impact your business in a good way or bad, you better know who you are working with. Dan at Guarantee Construction is a stand up guy and took care of us since day one. He repaired our entire restaurant from top to bottom. Call and ask for Dan! Thanks for doing such an awesome job on our business!

AJ Frasca

We are very happy with Guarantee Construction. They did a great job very timely in getting the work done. The guys are easy to work with. They worked with our insurance and mortgage company on the checks. The workers did a great job of cleaning up after themselves. Our house looks better than it did when it was brand new. Highly recommend this company.

Amy Rasco

A very credible company. Always on time, put up with our 5 dogs, and did a really super job. Never had a roofing company come in before and they explained everything and did an awesome job.

Leslie Fischer

Dan Odenthal, the owner and founder of Guarantee Construction Group, has replaced my roof, damaged due to hail storms, twice in the last 8 years. Dan did everything he promised and more with the first replacement of our roof. We had some insurance issues and Dan was able to successfully point out to the claims adjustor additional damage they missed in their initial assessment and quickly get resolution. He made sure the work got done on time and was done right. He was meticulous and made sure every aspect of the job was done to our absolute satisfaction. Dan also exceeded our very high expectations when at the end of the job and everything was cleaned up, it was clean. In the past we had issues with a roofing company that left pieces of cut shingle lying around and roofing nails here and there. None of that with Dan's crew, but for the beautiful new roof, you would never have known they were there. Dan did an equally spectacular job with our second roof replacement with him. I strongly recommend Dan and Guarantee Construction Group for any Storm damage claims and have referred him to my friends and family who have been equally impressed with his work

Jon Boesen

I've worked with Dan @ Guarantee Construction Group on our restaurant. He was able to help oversee the entire project and ensure that our business was not disrupted. You name it Dan did it. Roof, stucco, painting, lighting, he took care of it. Come see our building and you'll understand! Thank you Dan!

AJ Frasca

Dan worked on the roof for my commercial building. He was nice and easy to talk to. He went above and beyond and i really felt like he cared about my organization. The roof no longer leaks, it looks wonderful, and I have gotten tons of compliments. I highly recommend Guarantee Construction Group!

Kristina Welch

Guarantee Construction Group provided metal roofing and gutters for my new barn. Pricing was very competitive, but I really appreciate the professionalism of this group. My horses were already on site and they were careful to keep a clean construction site with extra checks in the stall runs. They also made tremendous efforts to complete the project quickly and work around the other construction crews. The frequent visits from Dan were very much appreciated - it is comforting to know that someone is ensuring the quality of the project throughout the process.The completed roof is beautiful and really compliments the building. I would refer this team to anyone needing quality roofing and excellent project management.

Hollie Joanis

A solid company that you can 100% trust they will do what is right. They did my roof and deck repair and I was blown away by the attention to detail!

Jeff Kroll

Dan was very friendly and easy to talk to. He went above and beyond with our leaky roof and got us a top of the line new install in a very timely manner. I felt like he really cared about what we were doing as a non-profit. I highly recommend Guarantee Construction!

Kristina Welch