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All Phase Electric vs Marelich Mechanical
Contra Costa Electrical Contractors Comparison · Updated March 2026
Both are veteran contractors with similar experience, but only Marelich Mechanical carries workers compensation insurance to protect you from liability.
| All Phase Electric | Marelich Mechanical | |
|---|---|---|
| Rating | ★ 5.0 | ★ 5.0 |
| Years Licensed | 22 years | 27 years |
| License # | 827580 | 752638 |
| Workers' Comp | — | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Walnut Creek, CA | Martinez, CA |
| Website | www.allphaseelectric.com | www.marelich.com |
Key Differences
What Customers Say
All Phase Electric
Customers consistently praise All Phase Electric's patient approach to answering questions and professional service delivery throughout projects.
Key Takeaway: All Phase Electric has documented feedback highlighting communication strengths, while Marelich Mechanical's limited review history means you'll need to assess their customer service approach through direct references.
Customer Reviews
All Phase Electric
Extremely professional. He is usually booked, but worth the wait.
I was so pleased with my experience using this company. Jason and his son were not only knowledgable, but also kind and patient! I asked a ton of questions and kept adding more things to the list to d...
Marelich Mechanical
No reviews available
Consider All Phase Electric if...
- ✓ You need electrical services specifically, and All Phase's 22 years demonstrates deep expertise in this specialized trade
- ✓ You value patient communication and question-answering during projects, as multiple customers highlight this strength
- ✓ You're willing to verify your homeowner's insurance covers contractor injuries and accept that liability risk
- ✓ You can plan ahead for scheduling, as the company is often booked due to demand for their work
Consider Marelich Mechanical if...
- ✓ You need mechanical services like HVAC, plumbing, or similar systems rather than electrical work
- ✓ Workers compensation coverage is non-negotiable for you, eliminating your liability if someone is injured on-site
- ✓ You prefer working with a fully compliant contractor who maintains all required insurance protections
- ✓ You're comfortable requesting references and customer feedback directly since the company has limited online review history
Questions to Ask Before Hiring
- → For All Phase Electric: Ask to see their general liability policy limits and confirm with your homeowner's insurance whether you're protected if a worker is injured on your property
- → For Marelich Mechanical: Request references from recent projects similar to yours and ask about their typical project timeline and communication process
- → For both: Ask how long their current crew has been working together and whether the owner or a project manager will be your main point of contact
The Bottom Line
Your first decision is straightforward: electrical work requires All Phase Electric, mechanical work requires Marelich Mechanical—their licenses don't overlap. If you need electrical services, All Phase Electric offers proven expertise and strong customer feedback about communication, but you must address the workers comp gap by verifying your own insurance coverage and accepting potential liability. If you need mechanical work, Marelich Mechanical provides full insurance compliance and veteran experience, though you'll want to request references since online feedback is limited. The workers comp issue is the determining factor if both could theoretically serve your needs.
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Frequently Asked Questions
It depends on your specific policy. Many homeowner's policies have limitations or exclusions for contractor injuries. You need to call your insurance agent and ask specifically about coverage when hiring a contractor without workers compensation insurance. Don't assume you're protected.
No. All Phase Electric holds an electrical contractor license, limiting them to electrical work. Marelich Mechanical holds a mechanical contractor license for HVAC, plumbing, and related systems. California license law prohibits contractors from working outside their license classification, so you must match the contractor to your project type.
At 22 and 27 years respectively, both are highly experienced veteran contractors. The difference is minimal compared to the gap between a 5-year and 10-year contractor. Both have proven they can handle complex projects, navigate code changes, and sustain a business through economic cycles.
This could reflect differences in how companies solicit feedback, the types of clients they serve, or simply their online presence strategy. The lack of reviews doesn't indicate poor service, but it does mean you should ask directly for references and recent customer contacts to assess their work quality and communication style.
Looking for the Best?
See our ranked list of top electrical contractors in Contra Costa.
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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 11, 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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