*The Angi rating for Architectural Service companies in Oakley, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Architectural Service needs.
*The HomeAdvisor rating for Architectural Service companies in Oakley, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Architectural Service needs.
Last update on October 19, 2025
Serving Oakley, CA and surrounding areas
Approved
In business since 1994
Free estimates
Emergency services offered
"I would rate your engineering design experience as excellent. Your skills in creating detailed drawings, problem-solving, and delivering innovative solutions are highly impressive."
+35
Serving Oakley, CA and surrounding areas
Approved
In business since 2018
Free estimates
Credit card accepted
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.
Serving Oakley, CA and surrounding areas
Approved
In business since 1998
Free estimates
Emergency services offered
"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."
+10
Serving Oakley, CA and surrounding areas
Approved
In business since 1999
Free estimates
Customers say: True professional
"Very professional, on time no problem. Joy to work with such competent architect"
+2
Serving Oakley, CA and surrounding areas
Approved
In business since 1997
Small jobs welcome
Offers commercial services
"Shilpa was wonderful! On-time and budget and super helpful at every step of the way!"
Serving Oakley, CA and surrounding areas
Approved
In business since 2024
Free estimates
Credit card accepted
"I highly recommend this company. All projects are always completed on time, and communication is excellent. I’m always kept informed about what’s happening with the project and what stage it’s at. Whenever I have questions or need an update, they respond quickly and clearly. They are reliable, professional, and very easy to work with."
Serving Oakley, CA and surrounding areas
Approved
In business since 2012
Customers say: Quick response
"Esther was amazing! We are so glad we had Esther complete our kitchen plans! She presented different options which were great. She's very professional & always accommodating. Was always willing to make any changes. She's a gem. So glad we did plans, as wasn't going to but glad we did. Thanks Esther!"
Serving Oakley, CA and surrounding areas
Approved
In business since 2017
Free estimates
Customers say: True professional
"Our kitchen remodel exceeded our expectations, providing us with a beautiful and highly efficient space for cooking and gathering. We're thrilled with the results, as the new design seamlessly integrates style and functionality."
+1
Serving Oakley, CA and surrounding areas
Approved
In business since 2009
Free estimates
Warranties offered
"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!"
+46
Serving Oakley, CA and surrounding areas
Approved
In business since 2025
Free estimates
Small jobs welcome
"Exceptionally competent high level professional Architect and building permit facilitator. He has my highest recommendation with no reservations. Ted Vinson, Ph.D., PE"
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