Compare Local Pros
Diablo Solar Services vs Ally Electric And Solar
Contra Costa Electrical Contractors Comparison · Updated March 2026
Diablo Solar Services brings 42 years of specialized solar experience including rare pool solar expertise, while Ally Electric And Solar offers 24 years with dual solar and electrical capabilities.
| Diablo Solar Services | Ally Electric And Solar | |
|---|---|---|
| Rating | ★ 4.2 | ★ 4.7 |
| Years Licensed | 42 years | 24 years |
| License # | 454228 | 806465 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Martinez, CA | Richmond, CA |
| Website | diablosolar.com | www.allyelectricandsolar.com |
Key Differences
What Customers Say
Diablo Solar Services
Customers emphasize Diablo Solar's repair-focused approach and long-term relationships, with particular appreciation for technicians who explain systems thoroughly and recommend cost-effective repairs over replacements.
Ally Electric And Solar
Customers highlight Ally Electric's careful installation quality and project coordination from consultation through completion, with specific praise for handling delicate roofing materials and utility coordination.
Key Takeaway: Diablo Solar's feedback centers on specialized diagnostic expertise and multi-decade customer relationships, while Ally Electric receives more emphasis on integrated project management and careful physical execution of installations.
Customer Reviews
Diablo Solar Services
Mike and his team are incredible, and I don't say that lightly. From my own personal experience working with both solar and pool service companies, Diablo Solar is an easy one for me to recommend. The...
Diablo saved me from another solar company that tried to pressure me into a more expensive program for repair of my solar panel. Diablo saved me thousands of dollars with expert advice and a staff tha...
Unlike many of their competitors, Diablo were willing to expand and existing solar system, and were able to maximally exploit existing equipment to cut the total cost. They did not try to oversell, co...
Ally Electric And Solar
Ally Electric And Solar installed our solar system just before NEM2.0 ended (yes, this is a long due review). It was a pretty busy time for solar companies, as you may guess. Many people wanted to com...
Ally Solar and Electric recently installed my solar system with a battery backup, and I couldn’t be happier with the experience. From start to finish, their team was professional, knowledgeable, and...
I had a great experience with Ally Electric and Solar Inc! I had worked with them couple years ago for replacing my main electric panel. This time they built my solar system on the roof. They were ver...
Consider Diablo Solar Services if...
- ✓ You have an existing pool solar heating system needing service, repair, or seasonal maintenance, where Diablo's specialized expertise is hard to find elsewhere in the region
- ✓ Your photovoltaic system needs diagnostic work or repair rather than replacement, and you value their reported philosophy of fixing existing equipment when feasible
- ✓ You're coordinating solar panel removal and reinstallation for a roof replacement project and want a contractor with extensive experience in this specific scenario
- ✓ You prioritize working with the longest-established solar specialist in the area, particularly if you value potential long-term service relationships spanning decades
Consider Ally Electric And Solar if...
- ✓ Your solar project requires electrical panel upgrades, service increases, or rewiring work that would otherwise need a separate electrical contractor
- ✓ You're installing battery backup systems and want integrated electrical expertise for proper service panel coordination
- ✓ Your home has older electrical systems like knob and tube wiring that should be addressed before adding solar load
- ✓ You value high owner involvement throughout the project and want a contractor who can handle both immediate solar needs and future electrical service calls
Questions to Ask Before Hiring
- → Ask Diablo Solar how they approach repair versus replacement decisions for aging systems and what factors determine their recommendations for your specific equipment
- → Ask Ally Electric whether the same team handles both electrical and solar work, and how they coordinate the sequencing when both services are needed
- → Ask both companies for references from projects similar to yours in scope and vintage, particularly if you have an older home or existing solar system
- → Confirm current lead times and scheduling availability during the season you need work completed, as both companies experience busy periods
The Bottom Line
For most homeowners installing photovoltaic systems, Ally Electric And Solar offers practical advantages through integrated electrical and solar expertise, particularly valuable if your project needs panel upgrades or you want a single contractor for future electrical service. Their 24 years, high owner involvement, and careful installation practices provide veteran-level competence. However, choose Diablo Solar Services if you have pool solar heating systems, need repair expertise for existing solar equipment, or want the deepest diagnostic experience available—their 42 years of solar-exclusive focus represents rare specialized knowledge. Both are financially protected veteran contractors; your decision should center on whether you need Diablo's specialized solar depth or Ally's integrated electrical capabilities.
Get Up to 3 Free Quotes
Compare prices from licensed, verified contractors
Frequently Asked Questions
For straightforward residential photovoltaic installations on newer homes, both companies have veteran-level expertise to handle the work competently. The experience gap becomes meaningful if you have complications like older roof structures, existing systems needing diagnosis, or pool solar heating where Diablo's four decades provides specialized knowledge. For complex electrical integration needs, Ally's dual licensing may matter more than the age difference.
Choose Ally Electric if your project involves electrical panel upgrades, service increases, or you want a single contractor relationship for future electrical needs beyond solar. Choose Diablo Solar if you have pool solar systems, need repair expertise for existing equipment, or prefer a contractor whose entire business model centers on solar rather than splitting focus. For basic photovoltaic installations without electrical complications, both have sufficient expertise.
Diablo Solar can coordinate with electrical contractors for panel upgrades, but you'll manage two separate contractor relationships. Their feedback shows experience coordinating with other trades for roof work. If your electrical needs extend beyond basic solar interconnection, Ally Electric's integrated approach eliminates coordination challenges and scheduling between multiple contractors.
Both companies demonstrate long-term customer relationships in their feedback, with Diablo showing clients spanning 10-20 years and Ally reporting 6-10 year relationships. Diablo's exclusive solar focus means ongoing availability for solar-specific issues and seasonal maintenance. Ally's electrical capabilities provide broader service options if you develop electrical needs beyond solar, though both companies service systems they didn't originally install.
Looking for the Best?
See our ranked list of top electrical contractors in Contra Costa.
Other Contra Costa Electrical Contractors Comparisons
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 13, 2026.
This comparison is based on publicly available information. We recommend getting multiple quotes and verifying all credentials directly before hiring.
Get in Touch
Have questions or feedback? We'd love to hear from you.