Get matched with top architects/engineers in Discovery Bay, CA

"I would rate your engineering design experience as excellent. Your skills in creating detailed drawings, problem-solving, and delivering innovative solutions are highly impressive."

"Very professional, on time no problem. Joy to work with such competent architect"

"Office promptly called to schedule an appointment. Engineer was knowledgeable, pleasant, and provided the service we requested."

At Guillen Design & Drafting Services, we help bring your building ideas to life whether you're starting from the ground up or remodeling an existing space. We specialize in producing well-designed architectural construction documents tailored to each clients unique needs. From initial concept through the permitting process, we're here to guide you every step of the way. We also team up with the appropriate engineers and Title 24 energy consultants to ensure your plans meet all codes and requirements. Our goal is to make the design process smooth, clear, and stress-free so you can focus on your vision while we handle the details.

"I contacted M&J Prime Builders on a Sunday morning via an urgent request on Angi (Angie's List) to repair a leak in our backyard irrigation system. Javier contacted us immediately and arrived at our home in Concord with his business partner, Marcos, within 90 minutes. They were very attentive, professional, and accommodating, especially for our unexpected Sunday morning emergency. They not only repaired the leak but also addressed another issue that had arisen with our shutoff valve. Their estimate was very reasonable and accurate, and their work is top-notch. Javier is both a licensed contractor and a civil engineer. As a result, they offer a wide range of home improvement projects. I will be using their services again and highly recommend M&J Prime Builders"

"Christopher was very helpful, he guide me through all the process of making a plan for the city. He was very patient with me through the project. Overall I was very satisfied with the project."

"To be honest Im dealing with a complicated district and I was kind of frustrated that my project was handed off to a new person but Raegan Hammon was the most patient, kind, professional and efficient Architect I have ever had the pleasure 🙏 of doing business with. Thank you for placing my project in her very capable hands. Forever grateful Leilee Keppard [*** Link removed ***]"

"Leo was very helpful and quick to respond. We’re happy with how our 2 bathrooms turned out. Project was completed within the time promised. Our only complaint is that the workers did not clean up very well. But overall, we’re satisfied and we’ll use them again."

"Sandoval is very professional, timely and detailed oriented. In addition, he offers outstanding customer service. He did excellent work within the time frame promised. I have already scheduled him for additional needed work because I'm so happy with the quality of craftsmanship, work ethic and support I receive. Without reservation, I highly recommend Sandoval."

"Shilpa working with her structural engineer completed all the architectural and structural plans and calculations for a 400SF single story addition, complete with drilled piers and grade beams, in just over two months for submittal to City for review. Shilpa is very easy to work with and is quite readily available to fit my work and project schedule. Shilpa is very responsive to my comments and timely completion of required documents. Cost is reasonable. City has few review comments and issued permit for construction. I would definitely retain Shilpa again when the need comes up."