Licensed General Contractor · CSLB #1142540
Your Family Is Growing.
Your Home Can Too.
Second story additions, ADUs, and garage conversions for multigenerational families in Downey, Lakewood, Whittier, Pico Rivera, and across Southeast Los Angeles. Whether your kids need their own space, your parents are moving in, or you want rental income for retirement, we build the solution.
Veteran-owned. Father and son crew. 50+ years combined experience.
What We Build
Residential Services
Homes in Southeast LA weren't built for the way families live today. We add the space your family needs so everyone can stay together, stay close, and stay comfortable.
Spaces That Work for You
Full gut-and-rebuild or targeted upgrades. Plumbing, electrical, tile, cabinetry, and finish work. Designed for how you actually live, built to last.
Rebuild What You Have
Complete renovations for outdated homes. New layout, systems, finishes. One contract, one schedule, one crew from demo to move-in.
Turn Unused Space Into Income
Garage conversions and new-build ADUs for rental income, aging parents, or adult kids who need their own space. We handle permitting, construction, and final inspection.
More Space Without Moving
Your family is growing but you love your neighborhood. Add bedrooms, bathrooms, or a full second floor. Structural engineering, foundation work, framing, and full finish. We manage the complexity so you don't have to.
How It Works
From First Call to Final Inspection
No surprises. No disappearing acts. Every project follows the same clear path.
Why Reystone
Not Your Average Contractor
We understand multigenerational families because we are one. Jose and his father work every project together. His parents are converting their own garage into an ADU right now. When we say we get it, we mean it.
| "Old School" Contractor | Reystone "New School" | |
|---|---|---|
| Response Time | Bids take 3+ weeks. Slow follow-up. | Fast quoting. Defined multi-touch follow-up sequence. |
| Reliability | Jobs abandoned. No-shows. | Built by a Marine. Strict adherence to schedule. |
| Professionalism | Poor site assessment. Hidden fees. | Proper assessment. Technology-based project management. |
| Job Site | Messy, unsafe work areas. | Clean, organized, Marine-standard sites. |
| Project Control | You manage the permits and city. | A–Z management: plans, permits, and construction. |
What Our Clients Say
Real Projects. Real Reviews.
Garage-to-ADU Conversion · South Gate
"They handled everything from plans to permits to construction. We never had to chase the city or wonder what was happening. The ADU came out exactly how we wanted."
— Gabriel G. · Google Review
Residential Addition · Los Angeles Area
"On schedule, on budget, and no surprises. Communication was clear the entire time. I'd hire them again without hesitation."
— Miguel R. · Google Review
About Reystone
Built by a Marine. Run Like One.
Reystone Construction was founded by Jose Reyes, a Marine Corps Sergeant with a background in federal compliance and supply chain management. Jose and his father bring over 50 years of combined construction experience to every project. Right now, they're converting their own family's garage into an ADU in South Gate, the same work they do for their clients every day.
The result is a contractor who understands multigenerational families because he is one. A contractor who doesn't disappear, doesn't cut corners, and doesn't leave you managing the process. One team, one standard, from first plan to final inspection.
Not Sure What It Costs?
Get a Ballpark in 60 Seconds
Whether you're building a space for your parents, creating a rental unit for retirement income, or adding a floor for your growing family, start with honest numbers from a licensed contractor who lives in your neighborhood.
Free Download
2026 Home Addition Cost Guide
Ballpark pricing for additions, ADUs, and garage conversions in Southeast LA. See what families like yours are investing, no sales call required.
No spam. No pressure. Just pricing data.
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Tell Us About Your Project
Describe what you're looking to build. We'll get back to you within 1 business day with next steps.
Downey, Lakewood, Cerritos,
Whittier, Pico Rivera, Norwalk,
South Gate & Southeast LA
"They handled everything from plans to permits to construction. We never had to chase the city or wonder what was happening."
— Gabriel G. · South Gate ADU