Alto Builders
Description
Alto Builders is a premier design-build construction and remodeling company serving homeowners and businesses throughout Los Angeles County and Ventura County. Founded as a family-led company by Paul Manfredi, Simon Manfredi, and Lana Manfredi, Alto Builders combines decades of construction expertise, innovative design thinking, and personalized client service to deliver exceptional residential and commercial projects. The company specializes in custom homes, Accessory Dwelling Units (ADUs), whole-home renovations, fire rebuilds, additions, and high-end remodeling projects, managing every phase of construction from concept to completion.
Rooted in a commitment to craftsmanship, transparency, and collaboration, Alto Builders was established with the vision of creating spaces that are not only structurally sound but also thoughtfully designed to enhance the way people live and work. By integrating design, permitting, project management, and construction under one roof, the company provides a seamless experience that simplifies the building process while maintaining the highest standards of quality.
Residential & Commercial Construction Services
Alto Builders offers comprehensive design-build and general contracting services tailored to meet the unique needs of each client. Their experienced team works closely with homeowners, architects, designers, and developers to ensure every project is executed with precision and attention to detail.
Services Include:
- Accessory Dwelling Unit (ADU) construction
- Detached ADUs
- Garage conversion ADUs
- Custom home construction
- Whole-home remodeling
- Kitchen remodeling
- Bathroom remodeling
- Home additions
- Ground-up residential construction
- Fire rebuild services
- Architectural management
- Design-build services
- Interior design coordination
- Permit acquisition and management
- Commercial construction and tenant improvements
Every project is supported by detailed planning, advanced 3D visualization tools, comprehensive project management, and a commitment to delivering results that align with the client’s vision and budget.
ADU & Fire Rebuild Specialists
Alto Builders has developed extensive expertise in ADU development throughout Los Angeles and Ventura County. The company manages every stage of the ADU process, including design, budgeting, permitting, and construction, creating turnkey solutions for homeowners seeking rental income opportunities, guest houses, home offices, or multigenerational living spaces.
In addition, Alto Builders has become a trusted rebuild partner for communities affected by the January 2025 Eaton and Palisades Fires. The company actively manages numerous fire rebuild projects across Altadena, Pacific Palisades, and Malibu, helping families rebuild their homes through coordinated design, permitting, and construction services.
ADU Solutions Include:
- Detached backyard cottages
- Garage conversions
- Above-garage ADUs
- Guest houses
- In-law suites
- Rental income units
- Home office spaces
- Multigenerational housing solutions
Why Homeowners Choose Alto Builders
- Family-owned and operated company
- More than 30 years of construction experience
- Full-service design-build approach
- In-house design expertise
- Specialized ADU construction services
- Comprehensive permit and project management
- Advanced 3D visualization and planning
- Expertise in custom homes, remodels, and fire rebuilds
- Transparent communication through modern project management systems
- Strong reputation for craftsmanship and client satisfaction
By combining traditional craftsmanship with modern building technology, Alto Builders creates spaces that are functional, beautiful, and built to last.
Building Los Angeles’ Future One Project at a Time
At Alto Builders, construction is about more than buildings—it is about creating environments where families grow, businesses thrive, and communities recover and prosper. The company approaches every project with a dedication to quality, integrity, and thoughtful design, ensuring that each space reflects the unique goals and lifestyle of its owner. Whether constructing a custom home, building an ADU, completing a luxury renovation, or rebuilding after a disaster, Alto Builders delivers personalized service and exceptional results from start to finish.
Core Values
Craftsmanship
Delivering superior workmanship and attention to detail throughout every phase of construction.
Collaboration
Working closely with clients, architects, and designers to bring each vision to life.
Integrity
Maintaining transparency, accountability, and professionalism throughout the building process.
Innovation
Combining advanced design tools, modern construction techniques, and creative problem-solving to deliver exceptional outcomes.
From luxury remodels and ADUs to custom homes and large-scale rebuilds, Alto Builders continues to help property owners across Southern California transform ideas into enduring spaces built with care, precision, and purpose.
Tuesday: 8:00 AM - 6:00 PM
Wednesday: 8:00 AM - 6:00 PM
Thursday: 8:00 AM - 6:00 PM
Friday: 8:00 AM - 6:00 PM
Saturday: 9:00 AM - 1:00 PM
Sunday: CLOSED
Alhambra CA
Baldwin Hills CA
Beverlywood CA
Burbank CA
Calabasas CA
Camarillo CA
Chatsworth CA
Culver City CA
Echo Park CA
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Exposition Park CA
Fairfax CA
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Location
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