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Sun Light & Power vs J.J. Commercial Water Heaters
Alameda General Contractors Comparison · Updated March 2026
These companies serve completely different needs: Sun Light & Power specializes in solar installations with 49 years of experience, while J.J. Commercial Water Heaters focuses on commercial water heating systems.
| Sun Light & Power | J.J. Commercial Water Heaters | |
|---|---|---|
| Rating | ★ 4.8 | ★ 3.0 |
| Years Licensed | 49 years | 7 years |
| License # | 326203 | 1049808 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Berkeley, CA | Hayward, CA |
| Website | www.sunlightandpower.com | www.jjishot.com |
Key Differences
What Customers Say
Sun Light & Power
Sun Light & Power consistently receives praise for thorough consultations with realistic projections, professional installation crews, responsive communication throughout projects, and technical competence on complex installations and system repairs.
Key Takeaway: Sun Light & Power has substantial customer feedback confirming service quality patterns, while J.J. Commercial Water Heaters lacks public reviews, making direct reference requests essential for verification.
Customer Reviews
Sun Light & Power
I'm on my fourth project with SL&P and I have to say that they are one of the very best contracting companies I have worked with. They are very thorough and attentive to detail. The workmanship has b...
Here are my criteria for choosing a solar vendor: Long-lived company: ✅ Competitive pricing: ✅ (similar to another bid we got, and in line with local data) Good communication: ✅ (no BS, ever ...
This team is very thorough and detail oriented - as you want when having something installed on your house that is supposed to function for over 25 years. They have been around a long time and will be...
J.J. Commercial Water Heaters
The best in the business! Rich and Jessie are amazing. The most honest and hardworking guys I know. You need it done they will always find a way to take care of the problem.
Consider Sun Light & Power if...
- ✓ You're installing solar panels, adding battery backup to your home, or need repairs on an existing solar system from any installer
- ✓ You want a contractor with extraordinary longevity who can support your system decades into the future, particularly important given how many solar companies have ceased operations
- ✓ You value established customer feedback patterns showing thorough consultations, realistic projections, and professional installation crews
- ✓ Your project involves complex installations like steep roofs, system upgrades, or integration with existing electrical systems
Consider J.J. Commercial Water Heaters if...
- ✓ You operate a commercial facility needing water heater installation, repair, or maintenance rather than residential services
- ✓ You prefer a contractor with specialized focus on commercial water heating systems rather than general plumbing
- ✓ You're located in Hayward or eastern Alameda County and want a locally-based contractor for commercial equipment
- ✓ You're comfortable with limited public review history and willing to request references directly from the contractor
Questions to Ask Before Hiring
- → If considering J.J. Commercial Water Heaters, ask for references from recent commercial clients and inquire about typical response times for service calls given the noted higher service fees
- → Confirm which company actually provides the service you need, as these contractors operate in entirely separate trades with no overlap
- → If you have a solar water heating system and confused it with commercial water heaters, clarify with Sun Light & Power whether they service solar thermal systems or only photovoltaic panels
The Bottom Line
This comparison only makes sense if you're researching two separate projects or have confused service categories. For solar panel installation, battery backup, or solar system repairs, Sun Light & Power is the clear choice with 49 years of specialized experience and extensive positive customer feedback. For commercial water heater installation or service, J.J. Commercial Water Heaters is your relevant option, though you should request references given limited public reviews. Do not expect either company to provide services outside their specialty area. Clarify exactly what work you need done, then contact the appropriate contractor.
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Frequently Asked Questions
No, these companies serve entirely different needs. Sun Light & Power specializes exclusively in solar photovoltaic systems and battery storage, not water heating. J.J. Commercial Water Heaters focuses on commercial water heating equipment, not solar installations. If you need both services, you'll need to hire separate contractors.
Yes, considerably. Their longevity means they can repair older systems installed by companies that no longer exist, they understand how to integrate new technology with existing installations, and they've weathered industry changes that eliminated less stable competitors. This experience is particularly valuable when manufacturers discontinue product lines or when you need upgrades to decades-old systems.
Commercial service companies often have fewer online reviews because their customers are businesses rather than homeowners, and businesses typically don't leave public reviews as frequently. However, this makes it more important to request direct references from recent commercial clients before hiring.
Only if you're managing separate projects: installing solar panels on your home while also needing commercial water heater service for a business property you own. For a single residential project, you would never need both, as they operate in completely different specialty areas with no service overlap.
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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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