
ADU / Garage ConversionOntario, CA 91762
Modern Build offers adu / garage conversion services in Ontario, CA 91762
Get a Free EstimateADU & GARAGE CONVERSION SERVICES
Garage Conversion Contractor in Ontario, CA 91762
Modern Build transforms unused garages into permitted, fully functional ADUs in Ontario, CA 91762. Whether you’re adding a rental unit, home office, or guest house, we handle the entire process from planning to construction.
Our ADU conversions in Ontario are tailored to your goals and comply with all zoning, building, and safety regulations — ensuring long-term value and peace of mind.
Free Consultation
(323) 300-4130

Why Homeowners Choose Us
Trusted Experts in ADU / Garage Conversion
Our service area spans more than 150 California cities, and our near me permitting knowledge shortens plan check cycles, improves inspection success, and reduces costly rework by aligning design details with local interpretations of state building codes and standards.
We identify hidden issues early, such as dry rot, outdated wiring, or undersized plumbing, and we present options with transparent pricing near me, which prevents surprises, protects safety, and keeps your project moving without stressful, last‑minute budget shocks.
What’s Included in Your Ontario ADU Conversion?
From garage to high-functioning living space in Ontario, CA 91762.
Garage-to-Living Space Conversion
Custom Floorplans & Design
Plumbing & Electrical Installation
Framing, Drywall & Insulation
City Permits & Compliance
Energy-Efficient Windows & HVAC
Work Performed by Licensed, Insured Contractors
Financing Options Available
ADU BUILDERS IN Ontario, CA
Why Convert Your Garage in Ontario, CA 91762?
Garage and ADU conversions are the smartest way to expand livable space and boost property value in Ontario, CA. Whether it’s for rental income, multigenerational living, or personal use, our team delivers turn-key ADU solutions that meet city code.
From initial zoning checks to final inspections, we make sure your Ontario ADU project is legal, functional, and built to last.
Our Process
Step by step from concept to completion
Free Property Assessment
We inspect your garage in Ontario, CA 91762, review local ADU zoning rules, and confirm feasibility based on your lot and layout.
Custom Design & Engineering
Our designers and engineers create a floorplan tailored to your goals, budget, and the existing structure in Ontario.
Permit Approval & Construction
We coordinate permitting and begin construction with licensed crews from our network, providing weekly progress updates for your Ontario, CA 91762 project.
Final Walkthrough & Move-In
After final inspection and occupancy approval, we walk through the completed ADU with you to ensure full satisfaction in Ontario.
Why We Love Working in This Area
Homeowners in 91762, CA Trust Us
Ontario, CA 91762 is a dynamic ZIP with a blend of historic homes and newer builds. This unique mix provides homeowners with a rich tapestry of architectural styles, from charming bungalows to contemporary designs. At Modern Build Home Remodeling, we’ve worked on everything from classic mid-century updates to sleek modern renovations, tailoring our services to the specific needs and aesthetics of each home. Our expertise allows us to enhance the character of older properties while seamlessly integrating modern conveniences that today’s homeowners desire. We specialize in optimizing space and bringing natural light and elegance into your kitchen, bath, and living areas. Whether you’re looking to create an open-concept layout that encourages family gatherings or a serene bathroom retreat to unwind after a long day, our team is dedicated to turning your vision into reality. With extensive experience navigating the area’s permit process and a deep understanding of neighborhood styles, we ensure that every upgrade not only meets local standards but also enhances the overall value and appeal of your home in Ontario, CA 91762.
Local Insights For This Area
Common Projects In Ontario, CA 91762
Ontario, 91762 experiences warm, dry summers that can lead to frequent dust accumulation, especially in homes near major traffic corridors. Selecting easy-to-clean finishes, such as smooth wall paints and sealed flooring, helps homeowners quickly tackle dust and debris, maintaining a tidy appearance with minimal effort all year round.
Given the prevalence of single-story ranch and bungalow homes in Ontario, finishes that resist scuffing and staining are particularly beneficial for high-traffic areas like hallways and family rooms. Durable, low-maintenance materials ensure that these busy spaces remain attractive and hygienic even in active, multigenerational households.
Ontario is situated within the Inland Empire, where occasional Santa Ana winds can bring outdoor elements indoors. Choosing finishes like washable wall surfaces or resilient vinyl flooring makes post-wind cleanup far easier, safeguarding interior spaces from grime without requiring intensive scrubbing or specialized products.
With the community’s growing interest in ADUs for rental income or multigenerational living, easy-care surfaces help minimize ongoing maintenance costs and effort for both owners and tenants. This is essential in a rental market where durability and cleanliness are top priorities, ensuring long-term value and tenant satisfaction in Ontario, 91762.
Permits And Approvals
Permit Steps For ADU / Garage Conversion In Ontario
Confirm ADU zoning rules, parking, egress, and separate utility metering if needed.
Check Ontario permit requirements online or by phone and download submittal checklists.
Prepare drawings, product specs, and any energy or structural documents.
Submit application, pay fees, and respond quickly to plan check comments.
Schedule inspections at required milestones and keep approved plans on site.
Tip, confirm details with your local building department before submitting.
Local Guide
Guide to ADU / Garage Conversion in Ontario 91762
Proper ventilation is paramount for Accessory Dwelling Units (ADUs) in Ontario, 91762, ensuring that occupants enjoy a healthy and comfortable indoor environment. Local building codes require modern ADUs to feature systems that effectively circulate fresh air and reduce excess humidity, helping to prevent mold and other air quality concerns.
Residents of Ontario, 91762, benefit from enhanced air quality in their ADUs by integrating energy-efficient ventilation solutions. These systems not only help filter out allergens and pollutants common in the Inland Empire but also support a more sustainable living space by optimizing airflow and minimizing energy loss.
Incorporating mechanical ventilation systems, such as heat recovery ventilators (HRVs) or energy recovery ventilators (ERVs), is highly recommended for ADU projects in Ontario. These technologies provide a steady supply of fresh air while retaining indoor comfort, which is especially important in compact spaces where air can become stale quickly.
Routine maintenance, including cleaning or replacing air filters and checking ventilation ducts, is essential for ensuring optimal air quality in Ontario ADUs. By proactively addressing potential issues, homeowners can safeguard against indoor pollutants and create a healthier environment for tenants or family members residing in their accessory units.
A FUNCTIONAL SPACE YOU’LL LOVE
Turn Unused Space Into Value in Ontario, CA 91762
ADUs in Ontario are an ideal way to generate rental income, create privacy for guests, or build a flexible home office. Modern Build delivers compliant, energy-efficient, and stylish ADU conversions that elevate your property.
As your local garage conversion experts in Ontario, we handle everything — from plans and permits to construction and finishes — with full transparency and guaranteed results.
Free Consultation
(323) 300-4130

What Homeowners Say
Around Ontario
Our renovation was completed perfectly by Modern Build Home Remodeling. From the initial consultation to the final walkthrough, their communication was clear and timely, making the whole ADU project in Ontario stress-free. The team demonstrated exceptional professionalism, respecting our home and schedule while consistently delivering high-quality workmanship. Every detail was thoughtfully handled, reflecting their commitment to excellence. I appreciated their transparency and willingness to answer all my questions, which built great trust. Modern Build Home Remodeling truly transformed our space with precision and care. I highly recommend them to anyone seeking reliable and skilled home remodeling services.
We are very happy with the service from Modern Build Home Remodeling. From the initial consultation to the final touches on our ADU, their team consistently demonstrated professionalism and clear communication. They took the time to understand our vision and kept us informed throughout the entire process, which made the experience stress-free. The quality of their workmanship exceeded our expectations, with attention to detail evident in every corner. Their expertise truly transformed our space in Ontario, 91762. We highly recommend Modern Build Home Remodeling to anyone looking for reliable and high-quality home remodeling services.
The service from Modern Build Home Remodeling was exceptional. From our initial consultation to project completion, their communication was clear and timely, keeping us well-informed throughout the ADU construction process. The team demonstrated impressive professionalism, arriving promptly each day and maintaining a clean, organized worksite. Their attention to detail and commitment to quality craftsmanship truly set them apart. The finished accessory dwelling unit not only meets but exceeds our expectations, blending seamlessly with our existing home. We highly recommend Modern Build Home Remodeling to anyone in Ontario looking for reliable and skilled home renovation experts.
Rated 5.0 stars by trusted homeowners in Ontario, CA 91762. Trusted by over 12+ families this year.
Ontario homeowners often seek reliable permits and skilled remodelers.
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Consistent quality. Consistent 5-star ratings.






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Our expert team has been serving Los Angeles and surrounding areas for over a decade. Whether you are looking to remodel your kitchen, bathroom, or entire home, we provide top-notch services to make your vision a reality.
Let’s start transforming your space into something amazing. Get in touch today to explore how we can bring your project to life.
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