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They were professional and explained the process every step of the way.

Columbia's technical expertise coupled with the use of high end Owens Corning Duration shingles and synthetic underlayment sealed my home from the weather very nicely. The OC warranty is the best in the industry. Erwin Serrano, the owner and project manager was outstanding. He is a seasoned professional. He demonstrated great follow through and left nothing to chance on this job. I feel we were lucky to have him personally supervise this tear-off and installation. I have every expectation that this roof will last a lifetime.

The roofing company demonstrated excellent work preparation, ensuring everything was organized and ready before starting the project. They took great care to protect my property, using appropriate coverings and precautions to prevent any damage. The quality of their work was outstanding, showcasing their expertise and attention to detail throughout the entire process. They also ensured a thorough clean-up after the work was completed.

Met with us quickly. Gave us a detailed estimate. Finished work in one day.

Erwin has been a pleasure to deal with. We used him on two different projects over the last 4-5 years.

A range of price points was offered.

Columbia Contracting had a wonderful crew. They were responsive to my questions and provided answers promptly.

I highly recommend Columbia Contracting to my friends and family.

Top notch in every way. The proposal included their licenses and insurance. They used excellent products. They explained each step once we agreed to proposal. Any questions I had were answered within an hour even aftrr they were finished. The workers had all the proper work gear and were very professional and courteous. They went over the magnet nail clean up twice bc I asked them to bc we have two young boys in the house. It was a pleasant experience. I highly recommend Erwin and his team.

From start to finish, superior customer service, proposal/planning, installation, and post-install follow-up with very competitive pricing. A quality experience.

They were professional, reliable, and they provided clear communication.

Great company. Very professional.

Did everything they said they were going to do , and all on schedule. I was pleased with the product and how it looked when finished. I was impressed how diligently they cleaned the working area for nails etc.I would recommend them to anyone.

I had a great time with the one-on-one attention I received. I was able to effectively schedule the installation. The crew was really efficient installing the roof. They really stuck to the quote, which was really helpful. Overall, I am happy with the outcome!

Columbia Contracting was absolutely 100% professional, always on time, responded immediately, and easy to get in touch with. I have never had a contractor that was so responsive and as professional as them. I would highly recommend them.

Excellent service, great communication, and professional crew

They provided excellent service, were on time, cleaned up. They came back a second time to make sure they didn't miss anything. They are an outstanding company I would use again. I have recommended them to my neighbor.