Building the space you need without headaches, worries, or stress.

Partnering with Rosa & Company is the best and most reliable way to finally remodel and gain the additional space that you deserve, and your family will cherish! Make your construction experience easy and enjoyable by choosing Rosa & Company.

Our services


Architectural Designs


Construction Documents


Construction Management


ADUs, Granny Flats, Guest Suites


Residential Remodels & Additions


Commercial Projects

What Rosa & Company's clients are saying:

★ ★ ★ ★ ★

I had a terrible experience before working with Rosa. I worked with an architectural designer for my ADU who missed every deadline, didn't provide responses, and cost me lots of time and money.

I reached out to other contractors and designers and Rosa was the only one who took her time to look at my drawings and give me feedback. Rosa was able to get my project approved with the city in only two weeks. She did in two weeks what the previous contractor couldn't do in 12 months! 

Working with Rosa was easy, smooth, and she was eager to help. She respected me and would get back to me promptly whenever I had a question. Her team was always on time. Rosa and her team got our ADU done in 3 months! Just based on the experience I had, I trust her instinctively. I hope to work with Rosa again in the future soon!

Anaheim, CA

★ ★ ★ ★ ★

It's not easy to find a great construction crew, but Rosa and Comapny are punctual, respectful, flexible and very hard-working.

The design and construction services are very professional and impressive. We love our garage conversion ADU, the renovation of our laundry room and our fresh concrete and drainage in the front and back yard of our home. My wife and I love it and hang out outside more often now that our concrete is safe and beautiful. 

We will hire Rosa and Company again for future construction and blueprint needs.

Anaheim, CA

★ ★ ★ ★ ★

Rosa and her team demolished our old patio cover and built a new patio cover for us. It was falling down and in disrepair. We were fearful that in the next heavy rain our patio would collapse. We really wanted to use our outdoor space! 

Unfortunately, our project wasn't done correctly the first time, so we called Rosa and she came in and saved the day! We also found some plumbing issues and Rosa worked with us to get that fixed. 

We now have a beautiful solid wood patio cover that looks gorgeous and we feel much safer. Rosa and her team have great ideas and collaborating with them was just wonderful! 

Call Rosa! You'll end up with a better design than you envisioned and you will just love working with her!

Upland, CA

Ready to turn your vision into a reality?

The first step of your construction project is a consultation. We will walk you through the process, what it's like to work with us and answer your questions.  Email us:


Rosa and Company

With over 20 years of experience and many 5-star reviews, Rosa and Company is the right choice for Southern California. We offer a full-range of design and architectural services along with a wide range of construction services.

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Rosa and Company offers designs and blueprints, residential remodels and additions, ADU's and commercial projects.