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About Avanti · Los Angeles

Built on craftsmanship.
Driven by care.

A general contracting firm that does things the right way — every time, on every project.

Our Story

More than a
contractor.

Avanti Construction Group was founded on a simple belief: that homeowners deserve a contractor who treats their home with the same care they would give their own.

We specialize in custom homes, ADUs, and full remodels throughout the Los Angeles area — bringing premium craftsmanship, transparent pricing, and genuine personal involvement to every project.

Our reputation is built project by project, review by review. A 5.0 Google rating and 27 HomeAdvisor reviews aren't just numbers — they're the result of doing right by every client, every time.

Avanti Construction Group project

What We Stand For

Our values.

🏛️
Uncompromising Quality

We use premium materials and trusted suppliers on every project. There's no shortcut that's worth taking when it's someone's home.

💬
Honest Communication

Clear scopes, transparent pricing, no surprises. We tell you what we're doing, why, and what it costs before work begins.

👤
Personal Involvement

Roman personally reviews every project from first design to final walkthrough. You're never handed off to someone who doesn't know your job.

🔒
Licensed & Insured

Active CSLB General Contractor license #1117924 with full liability insurance. Your home and investment are fully protected.

⏱️
On Time, Every Time

We respect your time and your schedule. Projects are planned carefully and executed with the discipline to deliver on our commitments.

🌟
5-Star Standard

We don't consider a project done until you're genuinely happy with the result. Our 5.0 Google rating reflects that standard.

Leadership

Meet Roman.

Roman Leonelli, Founder of Avanti Construction Group

Roman Leonelli

Founder & General Contractor

Roman founded Avanti Construction Group with one goal: to build a contracting firm that homeowners could actually trust. With years of hands-on experience across residential construction, remodeling, and ADU development, he brings both the technical knowledge and the personal care that defines Avanti.

Roman is directly involved in every project — from the first design consultation through the final walkthrough. He's not a salesperson who disappears after signing a contract. He's the person on your job site, reviewing your plans, and making sure the work reflects exactly what you envisioned.

That personal commitment is what has earned Avanti a 5.0 Google rating and a loyal base of repeat clients across Los Angeles.

CSLB License #1117924 General Contractor 5.0 Google Rating Los Angeles, CA

Ready to start your project?

Let's talk about what you're envisioning. No pressure, just a conversation.

Call (310) 878-0700 Get a Free Quote