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

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.

"Rich knows his business. He's thorough, very reasonable in pricing, and follows up until the job is complete. He's easy to work with, and responds instantly to questions. If you need building plans for permits or design, Rich will get it done."

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

"Excellent light installation project very responsive, honest, personable, and responsible. Over qualified for our job but took it on and completed promptly. Satisfied in all ways. Price Quote very reasonable."

"Shilpa was wonderful! On-time and budget and super helpful at every step of the way!"

"Omid and his team built a brand new bathroom in my home. The work was complicated as the home was just built in 2020. The foundation was concrete as thick as 18 inches with post tension cables running through. Omid laser mapped everything and determined the depth of plumbing through precise calculations. His team worked very carefully excavating through the concrete to then go 6 feet deep and access the main plumbing line and then perform all the work to connect the rest of the new plumbing, required by the new bathroom. Omid also utilized the space to the maximum and the bathroom looked much bigger than I had initially thought. The finishing was splendid with octagonal marble tiles aligned to perfection, additionally Omidâ  s team worked on extending storage spaces under the stairwell to further maximize storage value for us. I would highly recommend Omid. He and his team worked round the clock and even on weekends. I was really impressed by their schedule. I have heard horror stories where contractors leave work in the middle of the project or take up multiple assignments and only spend a few hours a day. But with Omid I was pleasantly surprised by the 8 hour work days and when they were running behind they were coming over weekends as well. Great job done at the end!!"

"Esther responded quickly to my inquiry, made me feel comfortable in determining what could be done with the space on a limited budget, offered many options and followed through with updates and contacts efficiently so that I had the best solutions and products available to complete the project."

"I wanna recommend them. They are professionals"

"Roberto Sandoval and his company have been doing our landscaping for many years. We’ve always relied on him for honest, reasonably-priced services with excellent care and attention. Absolutely recommend him highly!"