Modesto ADU Contractor You Can Trust
Looking to build an Accessory Dwelling Unit in Modesto?
We help homeowners build high-quality, code-compliant ADUs with expert planning and dependable construction. We handle everything from your initial consultation to final inspection. CA LIC # 1128975
Call us at (209) 202-3033 or use our form to start your project today.
Why Modesto Homeowners Choose Our ADU One-Stop Shop
Local neighborhood experience - Deep knowledge of Modesto zoning, building codes, and ADU regulations.
End-to-end service - From site planning and architectural design to permitting, construction, and final approval.
Transparent pricing & timelines - No surprises - clear project costs and schedules.
No jargon - just straight answers
We believe ADU projects should feel exciting, not overwhelming, and that’s what we offer you an ADU One-Stop Shop.
Modesto ADU Construction Process - 4 Steps
For homeowners who want a quality, efficient, and budget-friendly ADU contractor, our ADU One-Stop Shop guides homeowners through the 4 steps to build an ADU, from planning and design to permitting and construction.
We walk you through a clear, phased process so you always know what’s next:
1) Planning
Start with a free consultation, estimate, and resources to make an informed decision about building an ADU within your budget, needs, and timeline. Contact us today to get started.
Planning includes site-specific considerations and coordination with designers and engineers.
It’s important to work with experienced, licensed professionals to plan and build your ADU. American Helical will not only build your ADU, but will also work with a designer, licensed architect, or engineer to customize a site-specific ADU design for your build. American Helical includes architectural designers through the entire process, beginning with planning, to ensure your experience is efficient and seamless.
2) ADU Design
We offer 3 approaches to ADU design:
1) pre-design ADU models
2) pre-approved plans
3) custom ADU concepts created with an Architectural Designer
Building an ADU with American Helical includes personalized planning and design. Contact us and let’s discuss your ADU ideas and budget-friendly approaches to design your ADU.
3) City of Modesto Permitting
Once your ADU design is complete, American Helical will submit your ADU Plan to the City of Modesto for review and approval. We stay closely engaged with the designer, architect, and/or engineer to quickly respond to any questions or notes from the City of Modesto.
4) Construction
Once permits are approved, the American Helical crew will begin building your ADU. Learn more about American Helical’s experience and team here.
Inspections are required at multiple stages through ADU construction. We are experienced at delivering the quality and precision home inspectors require for approval - across all stages of building your ADU.
ADU Types We Build
We build a variety of ADU solutions in Modesto and across the Central Valley including:
Detached ADUs
Attached ADUs
Garage-conversion ADUs
Junior ADUs
Each option can be tailored to meet your family’s lifestyle or rental investment goals.
Start Your Modesto ADU Project with Confidence
If you’re planning an ADU in Modesto or the surrounding area, American Helical offers the experience and reliability you need to move forward with confidence. Contact us today to discuss your ADU project.