Introduction
A roof replacement is already a significant project. Add solar panels into the mix and many homeowners feel overwhelmed—especially when two different contractors are trying to coordinate schedules, share access to the roof, and avoid stepping on each other’s warranties.
This guide walks you through exactly what the process looks like when you work with a single contractor—Home Pro Roofing and Solar—managing both roofing and solar from start to finish.
If you currently have solar or are planning to install it, understanding this process can save you time, money, and unnecessary headaches.
Why Roofing and Solar Should Be Done Together
One of the biggest mistakes homeowners make is treating roofing and solar as two separate projects.
When handled separately:
- Timelines get delayed
- Warranties can become unclear
- Costs increase due to duplicated labor
When handled together by one contractor:
- The process is streamlined
- Your roof and solar system are designed to work together
- Responsibility stays with one company
If you already have solar installed, working with a contractor experienced in solar panel removal and reinstall is critical to protecting your system.
When planning both projects together, it’s important to work with a contractor who understands how roofing, solar, and energy storage systems integrate. You can learn more about your options with solar and battery storage solutions.
Before the Project Starts: Assessment and Planning
Step 1: In-Home Inspection and Estimate
Every project begins with a full inspection of both your roof and your solar system.
We evaluate:
- Roof condition and remaining life
- Solar panel layout and mounting system
- Electrical connections and inverter setup
- Structural considerations
You receive a clear, itemized estimate covering both roofing and solar work, with no surprises later.
For homeowners comparing roofing options, you can also explore our roof replacement services.
Step 2: Permits and Scheduling
Roofing and solar typically require separate permits in most Bay Area cities, including Sunnyvale, Mountain View, Palo Alto, and San Jose.
Home Pro manages:
- Roofing permits
- Solar reinstallation permits
- Scheduling inspections
Permit approvals usually take 1 to 3 days, and once approved, your project is scheduled.
During the Project: Step-by-Step Timeline
Day 1: Solar Shutdown and Removal
- System is safely disconnected by a licensed electrician
- Panels are removed and labeled
- Racking and attachments are removed
- Equipment is stored securely on-site
This step ensures your system is protected and ready for reinstallation.
Day 1–3: Roof Tear-Off and Installation
Once the roof is clear, the roofing process begins:
- Old roofing materials are removed
- Decking is inspected and repaired if needed
- New underlayment, flashings, and ventilation installed
- Premium roofing systems such as GAF and CertainTeed are installed
All work is completed to meet California Title 24 requirements.
Solar Reinstallation
After the new roof is complete and passes inspection:
- New flashings are installed at all mounting points
- Racking system is reinstalled
- Panels are remounted and rewired
- System performance is tested
If upgrades are needed, they are discussed before installation.
Final Inspection and System Reactivation
- Final inspection is scheduled with your city
- Once approved, paperwork is submitted to PG&E
- System is reactivated after utility approval
Most systems are back online within a few business days.
Will My Power Be Off During the Project?
Your solar system will be offline during the project, typically 3 to 5 days.
However:
- Your home remains powered through the grid
- You will not lose electricity
- You will temporarily draw power from PG&E instead of solar
If you have battery storage, we will walk you through how your system will behave during the project. You can also learn more about solar battery backup systems.
What Happens to My Warranties?
When roofing and solar are handled by the same contractor, your warranties remain protected.
You receive:
- Manufacturer roofing warranty (GAF / CertainTeed)
- Workmanship warranty from Home Pro
- Solar equipment warranty maintained
This is one of the biggest advantages of using a single contractor.
Typical Timeline and Cost Overview
Project Timeline:
- Total duration: 3 to 5 days
- Solar downtime: 3 to 5 days
- Permit approval: 1 to 3 days
Typical Costs:
- Solar removal and reinstall: $2,500 to $5,000
- Roof replacement: varies based on size, pitch, and materials
For homeowners considering upgrading their system at the same time, this is often the most cost-effective moment to do so.
Common Mistakes to Avoid
- Installing solar on an aging roof
- Hiring separate roofing and solar contractors
- Not planning for future battery storage
- Delaying roof replacement until leaks occur
Avoiding these mistakes can save thousands of dollars and prevent major disruptions.
Why Homeowners Choose Home Pro Roofing and Solar
Homeowners across Sunnyvale, Mountain View, Palo Alto, Los Altos, Cupertino, Santa Clara, San Jose, Redwood City, San Carlos, and San Mateo choose Home Pro because:
- One contractor handles roofing and solar
- Clear communication and scheduling
- Experience with both systems working together
- Local expertise and fast permitting
You can view examples of our recent work in our roofing and solar projects.
Ready to Get Started?
If your roof is due for replacement and you have solar, or are planning to install it, the best time to plan is before issues arise.
Schedule a free consultation with Home Pro Roofing and Solar. We’ll evaluate your roof and solar system, explain your options clearly, and provide a detailed estimate.
Contact us today or call (800) 650-3134
Serving Sunnyvale, Mountain View, Palo Alto, Los Altos, Cupertino, Santa Clara, San Jose, Redwood City, and throughout the Bay Area.