"Rich has completed several projects in the past and plans breezed through plan check, I did not use him for this project because of engineering requirements in the job. ."

"Very Professional, timely and great work. My project was approved and permitted in less than 3 weeks! Many thanks to the whole team."

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

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!

"Excellent Service from planning through Execution and installation to final fine tuning. The folks communicated well and explained every detail of the step. Got permit and inspection done. It was seamless. Thanks. R."

"I was referred to Roney at Babylon Builders by my realtor in the Bay Area. I am seeking some insight and advice on a property pending purchase. Roney was prompt in response and truly went above and beyond in answering my questions and explaining my various options. Thank you, Ron! I look forward to meeting with you and your team in the very near future."

"Mastodon Engineering Group is a heck of a company. I would highly recommend them to anyone. Mark is a really respectful man. I really liked working with Mark. Super professional, high integrity, very charismatic. I like people who are easy to talk to and have a sense of humor. He meets all those standards for me. He is very efficient and that is a plus."

We are 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.

"They started off great, fast and professional. We had them create blue print plans from my design. I had to pay their full bill before they released final plans which was fine of course. However, my contractor and I ran into a problem on part of their design and engineering and that's when the service went to crap. The contractor and I have been trying to resolve the issue for more than two weeks little success, in fact just the runaround. The Engineer tells us he needs to talk to the architect; the architect says he'll talk to the engineer and nothing happens. That's gone on for two whole weeks. My project is a dead standstill for two weeks which is not acceptable. That's also screwed up the schedules of the contractor and their sub-contractors Therefore what would a bit of five star rating for these guys turned into a 1 to 2. I was very happy with the beginning of the process but once you pay them you can forget about any additional service if you have questions. On the plus side, they seem like nice people to work with, the plans were put together well, and their prices seemed reasonable. As noted above, their follow up service is completely lacking. I would gladly paid another designer more to get complete service that didn't leave me hanging for weeks on end. Today starts week 3 with no resolution."

"I was really under the gun due to a prior Architectural firm not performing their duties per building plan codes. Not only were the plans incomplete but the City Plan Reviewer states(The Worst plans he’s ever seen) they will not make adjustments unless there is an additional charge for Thousands. Evaluation’s saved my clients and drew our project per code, along with Engineering in less time then they quoted. I highly recommended them, Especially Kirsten. You went above and beyond trying to coordinate this project. The staff was very professional and I will use them on all my projects. Sincerely, Frank B BCM Builders"