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Illuminate Solar Company vs Precise Roofing Inc
Contra Costa General Contractors Comparison · Updated March 2026
You're comparing a 16-year veteran solar specialist to a 2-year roofing contractor, making this a trade specialty decision more than a head-to-head choice.
| Illuminate Solar Company | Precise Roofing Inc | |
|---|---|---|
| Rating | ★ 4.0 | ★ 4.8 |
| Years Licensed | 16 years | 2 years |
| License # | 937645 | 1111816 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Walnut Creek, CA | Walnut Creek, CA |
| Website | www.illuminatesolar.com | www.preciseroofingca.com |
Key Differences
What Customers Say
Illuminate Solar Company
Customers consistently praise Illuminate Solar for on-time project completion, direct owner communication, and professional installation crews that deliver functioning solar systems with measurable electricity cost reductions.
Precise Roofing Inc
Customers highlight Precise Roofing's clear communication throughout projects, ahead-of-schedule completion, meticulous attention to detail in transitions and edges, and thorough inspections that catch hidden damage.
Key Takeaway: Illuminate Solar shows a pattern of meeting timelines as promised, while Precise Roofing frequently exceeds expectations by finishing ahead of schedule, though they're comparing different trade complexities and project durations.
Customer Reviews
Illuminate Solar Company
We had a solar system and battery installed recently and it went off without any issues. Great communication from the owner. Can’t wait to send them some referrals.
Mark and his crew did a wonderful job installing my solar panels. They came to work when they said they would, finished on time. I am so happy with the panels and paying nothing for electricity includ...
Mark and his crew were honest, down to earth, communicative and did a great job.
Precise Roofing Inc
Throughout, the roofing project was managed with caution and open communication. The process was easy and comforting, and the finished product seemed sturdy and well-built.
The entire procedure was simple and stress-free. The craftsmanship is self-evident.
The roofing, vents, and flashing were all expertly placed. The finished product truly demonstrates the attention to detail.
Consider Illuminate Solar Company if...
- ✓ You need solar panel installation or battery storage and want a contractor who has worked through 16 years of technology changes, permit processes, and utility interconnection procedures
- ✓ Your project timeline matters and you value the consistent pattern of on-time completion and direct owner communication throughout the installation
- ✓ Your roof may have structural considerations that require solar-specific expertise in load calculations, mounting systems, and panel placement
- ✓ You want a veteran contractor who has likely encountered and solved installation challenges similar to what your property presents
Consider Precise Roofing Inc if...
- ✓ You need roofing work such as replacement, leak repair, storm damage restoration, or skylight installation and want a detail-oriented team
- ✓ You're concerned about hidden damage beyond the visible issue, as customers note thorough inspections that identify problems beyond initial concerns
- ✓ You're working with an insurance claim for storm damage and need a contractor experienced in coordinating with adjusters
- ✓ You're comfortable working with a newer contractor who demonstrates strong communication and has a pattern of completing work ahead of schedule
Questions to Ask Before Hiring
- → For Precise Roofing: Ask for references from projects completed in years one and two of operation to understand how their work holds up over time, and inquire about warranty coverage given their shorter business history
- → For Precise Roofing: Ask how long their installation crew has worked together and what their lead installer's total roofing experience is, since company age doesn't always reflect crew experience
- → If considering roof work before solar installation: Ask both contractors how they coordinate when roofing work precedes solar, including warranty implications and structural assessment responsibilities
- → For Illuminate Solar: Ask about their roof assessment process and whether they identify roofing repairs needed before solar installation, and if they coordinate with roofing contractors
The Bottom Line
This comparison only becomes relevant if you're deciding between solar and roofing work, or if you need both trades coordinated. For solar installation, Illuminate Solar Company is the clear choice with 16 years of solar-specific expertise, consistent on-time delivery, and strong owner communication. For roofing work, Precise Roofing Inc offers detail-oriented service with strong communication, but their 2-year history means you should verify crew experience and request early-project references. If you need both a new roof and solar panels, prioritize the roof replacement first with Precise Roofing, then coordinate with Illuminate Solar for the solar installation once the roof work is complete and warranted.
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Frequently Asked Questions
It matters significantly for the trade you're hiring them to perform. Illuminate's 16 years of solar experience means they've diagnosed mounting challenges, navigated evolving utility requirements, and worked through permit complications that newer contractors haven't encountered. Precise Roofing's 2 years means they're still building their problem-solving history, though customer feedback suggests strong execution on standard roofing projects.
You'll need to hire both contractors or find a solar company that coordinates roofing work. Illuminate Solar should assess your roof condition before solar installation and may recommend roofing repairs first. Precise Roofing could handle the roof replacement, but you'd need to coordinate timing and ensure both contractors understand how their work affects the other's warranties and structural requirements.
Their 2-year history is short for establishing a long-term track record, but customer feedback shows detail-oriented work, thorough inspections, and clean execution. The key questions are crew experience beyond company age, warranty backing, and references from their first-year projects to see how work holds up. For complex historic restoration or unusual structural situations, more experience typically helps.
Solar contractors typically assess roof condition and may identify repairs needed, but they generally don't perform roofing work themselves. Ask Illuminate directly about their process when roof repairs are discovered during solar assessment, whether they coordinate with roofers, and how that affects project timeline and warranties.
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How We Compare Contractors
License Verification
All license data is sourced from official California CSLB records and verified regularly.
Review Analysis
Customer reviews are aggregated from Google and analyzed to identify patterns in service quality.
Detailed Comparison
We analyze credentials, insurance, experience, and feedback to highlight meaningful differences.
Not all licensed contractors are created equal. While a valid license is the baseline requirement in California, contractors can vary significantly in experience, insurance coverage, and customer satisfaction.
- Experience matters: A contractor with 15+ years of experience has likely encountered and solved problems that newer contractors haven't faced yet.
- Workers' compensation protects you: If a contractor without workers' comp insurance has an employee injured on your property, you could be held liable.
- Reviews reveal patterns: Individual reviews can be misleading, but patterns across many reviews often reveal a contractor's true strengths and weaknesses.
- Bond amounts vary: A contractor's bond provides financial protection if they fail to complete work as agreed. Higher bonds offer more protection.
Taking time to compare contractors on these factors can save you from costly mistakes and help ensure your project is completed by a qualified professional.
Data Sources: License information from California CSLB. Ratings and reviews from Google. Last verified March 12, 2026.
This comparison is based on publicly available information. We recommend getting multiple quotes and verifying all credentials directly before hiring.
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