San Diego's Local Home Addition Company

Bring life to design goals & ideas with your trusted addition contractors of San Diego.

Whether you need second floor addition, room addition, or other home addition, our contractors have the experience to design and build whatever your heart desires.

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What San Diego Homeowners Are Saying...

Mercury Builders absolutely came to my rescue! When the rain hit, I had water coming in fast and didn’t know what to do. Their team showed up right away, built a wall to stop the water, and installed a brand-new drainage system. The work was fast, professional, and honestly a huge relief. I’m so happy I don’t have to deal...Read More »

a week ago Adam Johnson
Mercury builders was great and very professional. I got a recommendation from a friend and couldn’t be happier with the results. Tal is great to work with and got everything done within the said timeline. Plus he presented all options clearly. Would recommend mercury builders to anyone!

4 months ago Liam K
I was referred to Tal from Mercury Builders by one of my neighbors in the Chula Vista area. They were extremely prompt and professional. The ADU they completed on my property was within the estimated time. Pricing was fair and transparent and we decided to add a backyard remodel to completely finish our project. Communication was open. They really...Read More »

a month ago Enrique Peregrino

Discover Which Style Fits Your Goals

Licensed Home Addition Contractors in San Diego

Adding onto your home requires skill, experience, and attention to detail. As one of San Diego’s leading home addition contractors, we specialize in building high-quality expansions that feel natural and functional.

Whether it’s a second-story addition, a home office, or an in-law suite, our team ensures the process is smooth, efficient, and stress-free, delivering exceptional results that enhance your lifestyle.

Memories For Family & Friends

Memorable Home Additions

A well-planned home addition not only adds square footage but also improves your home’s overall functionality and value. Our licensed local builders specialize in crafting high-quality, structurally sound additions that stand the test of time. Whether you’re expanding for a growing family, enhancing your home’s resale value, or creating a custom space for your needs, we ensure your new addition blends seamlessly and enhances your everyday life.