Compare Local Pros
Ilum Energy Solutions vs Future Energy Savers
Sacramento Solar Contractors Comparison · Updated March 2026
Future Energy Savers brings 41 years of licensing versus Ilum's 4 years, offering substantially deeper experience with solar technology evolution and complex installation scenarios.
| Ilum Energy Solutions | Future Energy Savers | |
|---|---|---|
| Rating | ★ 4.6 | ★ 1.4 |
| Years Licensed | 4 years | 41 years |
| License # | 1092865 | 463720 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Sacramento, CA | Wilton, CA |
| Website | ilumsolar.com | www.energysavers.com |
Key Differences
What Customers Say
Ilum Energy Solutions
Customers praise Ilum for fast installation timelines, responsive communication throughout projects, and thorough explanations during system setup and testing.
Future Energy Savers
Customers highlight Future Energy Savers' consultative sales approach without pressure tactics, efficient permit coordination, and appropriately sized system recommendations that deliver significant bill reductions.
Key Takeaway: Future Energy Savers receives specific recognition for not overselling system capacity and providing educational consultations, while Ilum stands out for responsive day-to-day communication and detailed operational explanations during installation.
Customer Reviews
Ilum Energy Solutions
I had solar installed at my home. So far it has been great, and service has been great. Thank you Broc!
Knowledgeable, patient, professional, great team, fully understand Solar.
Would have been a 5, but read on. Had ilum solar do a solar system on my roof and had no trouble initially, then had 1 issue with them regarding MPU (master panel upgrade). That issue resulted in th...
Future Energy Savers
I had a great experience with Future Energy for the sale and installation of my solar panels and battery system. From the initial consultation through to final commissioning, the team was knowledgeabl...
I used Future Energy Savers for both redoing my roof as well as solar installation with backup battery. The entire team for both the solar install as well as the reroofing were prompt, courteous, and ...
Shout Out to Future Energy Solar Corporation - we are less than a year in Sun. City - Normally abhor door knockers. And having succumbed to one 3 weeks ago at most. HUGE THANK YOU to Riley, Lisa, Marg...
Consider Ilum Energy Solutions if...
- ✓ Your solar project is straightforward on a newer home with updated electrical and solid roofing that won't need replacement in the next 15-20 years
- ✓ You prioritize responsive day-to-day communication and want a company that customers specifically praise for explaining system operation thoroughly
- ✓ You're adding battery storage or expanding an existing solar system and need fast turnaround rather than complex troubleshooting
- ✓ You value supporting a growing local Sacramento business and the project doesn't involve roofing complications
Consider Future Energy Savers if...
- ✓ Your home has an older roof that may need replacement or structural assessment before solar installation, as Future Energy Savers handles both trades
- ✓ You want the institutional stability that comes with 41 years in business for warranty support over your system's 25-year lifespan
- ✓ Your electrical system is older or your installation may involve complications where decades of troubleshooting experience becomes valuable
- ✓ You prefer in-house installation crews rather than subcontractors for direct accountability and quality control throughout the project
Questions to Ask Before Hiring
- → For Ilum: Ask how they handle projects requiring roof replacement or structural work, and whether they coordinate with separate roofing contractors or refer out
- → For Future Energy Savers: Ask about their experience with the specific solar panel and inverter brands you're considering, given technology has evolved significantly over 41 years
- → For both: Request references from installations completed 3-5 years ago to understand their long-term service and warranty response
The Bottom Line
Future Energy Savers is the stronger choice for most homeowners due to their 41-year track record, in-house crews, and ability to handle roofing complications that often accompany solar installations on older homes. Their institutional stability matters for 25-year system warranties, and their consultative approach helps prevent oversized systems. Choose Ilum if your project is straightforward on a newer home, you specifically value their communication style based on their reviews, and the faster-growing company appeals to you. But if your home is older than 15 years, your roof may need work, or you want maximum institutional stability for long-term warranty support, Future Energy Savers' veteran status provides meaningfully better protection.
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Frequently Asked Questions
For straightforward installations on newer homes with solid roofs and updated electrical, both companies can handle the work professionally. The experience gap becomes meaningful when complications arise: older electrical panels requiring upgrades, roof structural issues discovered during installation, or utility interconnection problems. Future Energy Savers has navigated these scenarios for four decades and handles roofing in-house, while Ilum would need to coordinate separate contractors for roof work.
In-house installation teams provide direct quality control, consistent training standards, and clearer accountability when issues arise. If something needs correction, you're dealing with the same company that sold and installed the system rather than a subcontractor relationship. This matters especially for warranty work years after installation when crew continuity helps diagnose problems faster.
Any four-year-old company carries more business continuity risk than a 41-year-old veteran, though Ilum's active license and insurance suggest current stability. Solar system warranties typically last 25 years, and manufacturer warranties often survive contractor closures. Ask Ilum specifically about their warranty service process and whether they use a warranty fulfillment partner for long-term support.
Future Energy Savers explicitly handles roofing work and lists roof replacement among their project types, allowing them to coordinate both trades under one contract with unified warranty coverage. Ilum would need to refer you to a separate roofing contractor or wait for you to arrange roof work independently, adding coordination complexity and creating two separate warranties for interdependent work.
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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 13, 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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