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Based in beautiful San Luis Obispo, Protective Weather Structures Inc. (PWS) brings an attractive and flexible solution to the California steel building market. We’ve been designing and constructing beautiful steel buildings since 1996.
PWS is dedicated to building high quality steel buildings and metal buildings that exceed our customers’ expectations. Our team has built all types of buildings from homes and offices to barns, workshops, garages, commercial buildings, and more. Whatever you’re looking for, our team will build an attractive, strong building that’s a perfect fit.
With PWS, the words “beautiful” and “steel buildings” are not a contradiction. We are a design-build contractor with ample experience with all kinds of materials and industries. Our goal is to design and construct buildings on spec, on budget, and on time. Read more
From Vision to Completion
Our 4-Step Process begins with a free no-obligation consultation, estimate, and site survey. We want to fully understand your vision and goals for your project. Together, we’ll discuss: Budget, timeline, financing, and your overall objectives. We’ll also define clear roles and expectations to ensure a smooth process from start to finish. Read more
Project Managment
Direct Manufacturer
Local Longevity
Tailored Versatility
Proven Reputation
From planning, to design, to completion, we handle every aspect of your project
At PWS, we believe a steel building should be both exceptionally durable and visually stunning (see our Project Showcase). Since 1996, we have broken the mold of typical prefabricated structures by offering a seamless, comprehensive design-build experience across California. Property owners choose us because we don’t just sell kits—we build lasting solutions.
We remain flexible to changes, manage every detail with an on-site project manager, and we guarantee our work. Read more
Read what our customers are saying about their experience working with PWS
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Hallie EllisTrustindex verifies that the original source of the review is Google.
“We are extremely happy with how our buildings turned out. The quality of the construction is excellent, and the finished buildings look great on our property. Everyone we worked with was professional, helpful, and committed to getting the job done right. It was a big project, but the process went very smoothly, and we’re very pleased with the end result. We would definitely recommend them to anyone looking for a quality steel building.”![]()
Andy CTrustindex verifies that the original source of the review is Google.
The folks at PWS are rock solid and they know how to build a quality metal building. At the time I was doing my research on companies to build my new workshop, PWS had very few online reviews which made me a little unsure. Eventually I decided to have PWS build my building largely based on Denny and his responsiveness and trustworthy nature. PWS handled all the permitting and coordination with their subcontractor who handled the extensive grading and concrete work. This work was all done to a very high standard. The building itself was beautifully constructed to high quality, and soon after completion endured very high rainfall levels without one drop of water inside. Chris in their office is also a tremendous resource and always responsive to all needs. Why choose PWS? Choose them if you value good old-fashioned trust, metal building experience and a quality final product. I would highly recommend PWS to anyone in the market for a quality metal building.![]()
Craig SmithTrustindex verifies that the original source of the review is Google.
Excellent workmanship, completed at cost estimate ontime. 30 X 40 metal shop building, 2 windows, 2 roll up doors. PWS are expert and good folks![]()
Rich AlfanoTrustindex verifies that the original source of the review is Google.
Thank You PWS!!! Really enjoyed working with them. Denny and Leon managed the shop on site, and we were able to talk to them at anytime whether in person or on the phone. If we couldn't reach them, Chris in the office would take care of anything and make sure our questions or concerns were answered in a timely manner. The building foreman, Fernando and his Crew did a great job on the building itself. Concrete and grading were done by Subcontractors and Leon managed them, and made sure their work was done in a timely manner and correctly. He also managed the Asphalt Contractor We love our new shop/garage.![]()
Craig ChandlerTrustindex verifies that the original source of the review is Google.
PWS built an RV enclosure for me that is perfect. The scheduling was handled to meet my needs and the crew that performed the install was professional. This is a great company to work with.
Take a look at some of our client projects
Expert insights, steel market trends, and building inspiration
- December 16, 2025
- Chris Knowles






