"Excellent structural analysis regarding impact of wall modifications for a residential remodeling project at our home. Prompt response to request for analysis, very professional and detail oriented, and friendly demeanor. In future I will hire them again for similar projects."

"Zach was very knowledgeable, friendly, and finely a Structural Engineer who pointed out the obvious with our structural problems."

"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. ."

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.

"Working with David was seamless. He did what he said he was going to do, was on time with his work and the work was exceptional. He needed to work with an engineer to get certain specialized part of my garage to pass with the city but i got approved from the City of Sacramento for my garage rebuild on the first try ! ! I will be working with David in the future and highly recommend him."

"I hired them to create plans for an apartment building. The process was quick and painless. Cost was good. The plans are full complete abd ready to take to builders for quotes. I will definitly use them again."

We have a single mission: Complete Customer Satisfaction! We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience.\nYou will find us to be competitively priced with close attention to the details.\nOur reputation is based on service, safety, and quality, regardless of how large or small the job.\nWe look forward to building a lasting relationship and guarantee your satisfaction!\n

We pride our company on reliability, great communication, integrity, and quality work. We believe in giving our absolute best in all of our projects, no matter how big or small. You will find us to be competitively priced, with close attention to the details of each and every project. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business, so please ask us for references.

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."