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Star Waterproofing and Roofing vs Got Watts?
Contra Costa General Contractors Comparison · Updated March 2026
These contractors serve completely different trades—Star Waterproofing specializes in roofing and leak diagnosis while Got Watts handles electrical, solar, and EV installations.
| Star Waterproofing and Roofing | Got Watts? | |
|---|---|---|
| Rating | ★ 4.3 | ★ 4.9 |
| Years Licensed | 8 years | 12 years |
| License # | 1036279 | 985920 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Walnut Creek, CA | Pleasant Hill, CA |
| Website | www.starwaterproofingco.com | www.gotwatts.com |
Key Differences
What Customers Say
Star Waterproofing and Roofing
Customers consistently praise Star's leak diagnostic expertise and detailed project scoping, with particular emphasis on solving difficult waterproofing challenges on decks and flat roofs.
Got Watts?
Got Watts receives recurring feedback about transparent pricing, no-pressure consultations, and professional installation quality across solar, electrical, and HVAC projects with strong permit coordination.
Key Takeaway: Star's reviews center on problem-solving expertise for challenging diagnostics with high owner involvement, while Got Watts emphasizes process transparency and systematic project management across complex electrical installations.
Customer Reviews
Star Waterproofing and Roofing
Gilber, Linda and the crew are top notch professionals. They waterproofed an outside deck at our building in San Francisco and did an A+ job. They were on time and very responsive to my needs and the ...
I recently hired Star Waterproofing to waterproof my 3 outdoor decks in S.F., they were leaking everywhere . With the amount of rain we have been receiving these past few years , I needed a specialis...
I recently hired Star to replace the flat commercial roof for an apartment building in Oakland (6,500 sq ft). I had an excellent experience from start to finish, and I'm glad to leave a glowing recomm...
Got Watts?
Got watts is incredible. Dont hesitate. Eric is so professional and experienced. They are meticulous about safety and quality and were on time had all the parts and even dealt with permits!!! They com...
Got Watts continues to do amazing work for us. They're prompt, attentive, and do high quality work. We originally had them install a large solar array and a couple of batteries for us. We recently had...
I reached out to GotWatts about adding solar panels to my home. They gave me several solid options and clearly explained efficiency, ROI, and cost. Their transparency was refreshing, and their pricing...
Consider Star Waterproofing and Roofing if...
- ✓ You have a persistent leak that's difficult to locate, particularly on outdoor decks, balconies, or flat roof sections where water intrusion patterns aren't straightforward
- ✓ Your project involves waterproofing systems for building envelope work, including torch-down or tar and gravel roof replacement on multi-unit properties
- ✓ You value high owner involvement and detailed diagnostic evaluations before work begins, especially for older buildings with potential hidden damage
- ✓ You need a contractor who can coordinate related exterior work like weatherproofing and painting as part of broader building envelope projects
Consider Got Watts? if...
- ✓ You're installing solar panels, battery backup systems, or EV chargers and want a contractor experienced in permit coordination and utility interconnection processes
- ✓ You need electrical panel upgrades, HVAC installations, or whole-house electrical modernization work requiring code compliance and inspection management
- ✓ You prefer a transparent, no-pressure sales process with multiple design options and detailed proposals for complex energy system installations
- ✓ You anticipate future expansion projects like adding batteries to existing solar or upgrading electrical capacity, and want a contractor relationship for ongoing additions
Questions to Ask Before Hiring
- → For Star Waterproofing: Ask about their post-project follow-up procedures and warranty response timeframes, given some customer reports of missed follow-up communication
- → For Got Watts: Ask about their typical timeline from proposal to installation completion for your specific project type, and how they handle permit delays or utility coordination issues
- → For either contractor: Request references from projects similar in scope and complexity to yours, particularly if your project involves older systems or challenging diagnostics
The Bottom Line
You're not choosing between competitors—you're selecting specialists for fundamentally different work. Hire Star Waterproofing and Roofing for roofing, waterproofing, and leak diagnosis, particularly when dealing with challenging water intrusion on decks, balconies, or flat roofs. Their 8 years of diagnostic expertise and high owner involvement make them well-suited for complex envelope work. Hire Got Watts for electrical projects including solar, batteries, EV chargers, and panel upgrades where their 12 years of experience, transparent pricing, and permit coordination expertise add value. Both carry proper insurance and bonds. If you have projects in both trades, coordinate timing between them and ensure each contractor understands how their work might affect the other's scope.
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Frequently Asked Questions
You likely have separate projects requiring different specialists—perhaps a roof leak alongside a solar installation, or you're researching multiple contractors for comprehensive home improvements. These companies don't overlap in services, so you'd hire them for distinctly different scopes of work. If you need both trades, you'll want to coordinate timing between them, particularly if roof work affects electrical conduit routing or solar panel mounting.
No single contractor here covers both trades. If your roof needs waterproofing or structural work before solar installation, you'd hire Star Waterproofing first to address the roofing issues, then Got Watts for the solar system. Ask Got Watts about their roof assessment process during solar proposals—they may identify roofing concerns that need Star's attention before panel installation begins.
Got Watts has 12 years licensed versus Star's 8 years, making them more established in the electrical trade. However, both have sufficient experience for their respective specialties—Star's 8 years focused specifically on waterproofing diagnostics represents substantial expertise in leak investigation. The experience advantage matters more in terms of handling complications: Got Watts has seen more permit scenarios and utility coordination issues, while Star has diagnosed a wider range of leak patterns.
Both receive positive feedback for communication during active projects, but with different patterns. Star offers higher owner involvement and detailed diagnostic explanations, particularly valuable for complex leak investigations. Got Watts emphasizes regular project updates through planning, permitting, and installation phases with a consultative, non-pressured approach. Star has some reports of missed follow-up after completion, while Got Watts maintains ongoing customer relationships for system expansions.
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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 10, 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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