SERVICE SPEC
Room Additions
When you need professional Room Additions in Fontana, CA, Robert & Sons Fontana Builders delivers licensed, insured service backed by years of local experience. Our certified technicians use industry-leading equipment and proven methods to ensure your home or business receives thorough, reliable results every time.
Whether you're dealing with routine maintenance, an urgent repair, or a full system upgrade, we provide transparent pricing, detailed explanations, and workmanship you can trust. We proudly serve Fontana, CA and all surrounding neighborhoods with same-day availability when possible.
When your family outgrows your current home, a room addition is often the smartest investment you can make—adding square footage without the cost and disruption of moving. Robert & Sons Fontana Builders specializes in designing and building permitted room additions for homeowners in Fontana and the surrounding Inland Empire, from master bedroom suites and sunrooms to attached garages and in-law quarters.
Every room addition project begins with a thorough site assessment and design phase. We review your property's setbacks, zoning requirements, and HOA guidelines, then develop construction drawings that satisfy City of Fontana plan-check requirements. Our team manages foundation work, framing, roofing integration, insulation, drywall, electrical, HVAC extensions, and all finish work so the new space looks and feels like an original part of your home.
We understand that construction adjacent to your living space is an inconvenience, which is why we maintain a clean, organized job site and establish clear daily work windows. Robert & Sons Fontana Builders keeps you updated throughout every phase, from permit approval through final inspection sign-off.
- Licensed and fully insured technicians
- Free estimates and upfront pricing
- Same-day and emergency service available
- Commercial and residential expertise
- Satisfaction guaranteed on every job
- Locally owned — we know your area