*The Angi rating for Structural Engineering companies in Napa, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Structural Engineering needs.
*The HomeAdvisor rating for Structural Engineering companies in Napa, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Structural Engineering needs.
Last update on October 11, 2025
Serving Napa, CA and surrounding areas
Approved
In business since 1998
Free estimates
Emergency services offered
"Prompt, Friendly but best of all he patiently explained how it REALLY works."
+10
Serving Napa, CA and surrounding areas
Approved
In business since 1990
Small jobs welcome
Customers say: Quick response
"We have an office space below our home with a storage space next door to it. We wanted to install a bathroom in that empty storage space to, hopefully, make both rooms into a small inlaw unit. But first, we needed a designer. Someone in the construction industry recommended Igino Pellizzarri for the job. We called him and he responded quickly. My husband is very hands-on and wanted Igino to help guide his vision and create a full bathroom that would look great without breaking the bank. Igino was very accommodating; he gave us several design options and even showed us what a full expansion of the area would look like if we chose to build the space out for an ADU. He also supplied 3D drawings of the space to give us a better idea of the outcome. He was always ready to answer questions, and took care of getting all permits from the county for us. Igino is easy to work with and has an engaging personality. Give him a call!"
+21
Serving Napa, CA and surrounding areas
Approved
In business since 2011
Free estimates
Customers say: Quick response
"Michael is very professional and knowledgeable. He took time to measure our place, explaining things could be done in different ways. I consulted with few others. He honestly gave me his advice that my ADU is not feasible money wise at the time being. Eventhough I took his advice and decided not to proceed with project. I really appreciate his expertise,his time and honesty. Thanks Michael."
+25
Serving Napa, CA and surrounding areas
Approved
In business since 1997
Small jobs welcome
Offers commercial services
"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."
Serving Napa, 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 Napa, CA and surrounding areas
Approved
In business since 2004
Free estimates
Customers say: True professional
"Excellent! Prompt service. Reasonable rates. Easy to work with."
Serving Napa, CA and surrounding areas
Approved
In business since 2017
Free estimates
Credit card accepted
"It was such a great experience working with Will and his team at Ogle Designs. They helped us design a blueprint for creating additions to our house including designs for the inside and patio/landscape design We so impressed with Ogle Design's high level of professionalism, expertise and overall delivery of our project. They completed everything on time and within budget! Thanks for your excellent service."
+14
Serving Napa, CA and surrounding areas
Approved
In business since 2024
Free estimates
Credit card accepted
"I hired Liberty drafting for a custom build and they made the whole process very simple and enjoyable"
Serving Napa, CA and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"Evolution Drafting did a great job modifying my existing plans and updating for Arizona codes and took care of the structural engineering as well."
+23
Serving Napa, CA and surrounding areas
Approved
In business since 2003
Free estimates
Emergency services offered
"Did a great job. Very thorough. Reasonable cost. Stayed within the estimate."
+6
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