"We are builders and have been building in central Ohio for over 25 years. We are thankful to have known Dave. He is extremely knowledgeable, communicates detals in an easy way and is very prompt to deliver. He often finds other ways to engineer things that we hadnt considered which make him our 1st choice in engineers. We would highly reccommend him and his services."

"Excellent! Came to the home did their inspection came up with a plan and all the prints needed to accomplish the goal. Very satisfied and they explained the reasons for what changes were needed definitely would refer them to anyone with structural engineering questions. Very serious people about their profession and extremely professional about their work."

"Evolution Drafting did a great job modifying my existing plans and updating for Arizona codes and took care of the structural engineering as well."

"Jeff was excellent to work with! He was knowledgable all of the details, manufacturers, colors, and came up with 4 different design options for the exterior of our home. We are just regular people, with an average home, who are planning to replace roof, trim and accent siding. His fees are reasonable, and totally worth it for such a big investment on our home. More people should consider getting some help with these important decisions. Thanks again Jeff!"

We’re a family owned and operated company that values honesty and integrity, and stands behind our work. We offer over 40 years of industry experience. We specialize in Asphalt Shingle Roofing installation, replacement, and repairs. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We look forward to building long-term relationships with our clients and guarantee your satisfaction!

"John and his crew are the best. Top quality work and really easy to work with. The attention to detail and the craftmanship are top notch. If you want it fast and cheap, this is probably not the company for you. If you want a structure that will stand the test of time and is done right, these are your guys. I will definitely hire John again for my next project."

"This gentleman was very professional and presented response in a timely manner. We needed a quick turn around and that was provided. The report is very professional and the information clearly written."

"It was an excellent job and I was very happy. He was on time, every time I called him, he answer or call me back right away. NO complaints."

"We recommend Allison Structural Group. They responded to us immediately and were very knowledgeable about the project we are about to tackle."

"Went very well. Work was done over three days. Darrin is personable and knowledgeable and suggested some changes from what we requested.. I'd hire again in a minute, and plan to again soon."