Compare Local Pros
Trulysun Energy vs Building Efficiency
San Francisco Electrical Contractors Comparison · Updated March 2026
You're comparing a 4-year solar specialist with permitting challenges against a 16-year HVAC and energy efficiency veteran with consistent technical expertise.
| Trulysun Energy | Building Efficiency | |
|---|---|---|
| Rating | ★ 4.4 | ★ 4.9 |
| Years Licensed | 4 years | 16 years |
| License # | 1078990 | 947504 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | San Francisco, CA | San Francisco, CA |
| Website | trulysun.com | buildingefficiency.net |
Key Differences
What Customers Say
Trulysun Energy
Customers appreciate owner involvement and installation crew professionalism but report frustration with permitting delays and inspection complications that extend project timelines.
Building Efficiency
Customers consistently praise technical consultation quality, proper equipment sizing for complex installations, and smooth completion of multi-component energy efficiency projects.
Key Takeaway: Building Efficiency earns uniform praise for project execution and administrative processes, while Trulysun Energy's permitting challenges create timeline unpredictability despite satisfactory installation work.
Customer Reviews
Trulysun Energy
Trulysun installed solar at my home. They worked through supplier challenges, city permitting and with PGE. Couldn’t be happier with their professionalism and diligence!
Super impressed with David Rubio from Trulysun Energy and would highly recommend. For the last 3 years my solar system has been great, but intermittently shutting down during the rain. The first four...
Great company to work with! David and his team did a fantastic with our solar panels installation! I would recommend them to anyone who is looking to install solar!
Building Efficiency
Incredible team, professional, terrific communication and great clean work. Absolutely recommend.
Building efficiency was very easy to work with thru all phases of my project: from initial consultation, through rebate applications to the actual project itself. Reliable and professional.
The Building Efficiency team was a joy to work with. They made my life easy at every step of the process.
Consider Trulysun Energy if...
- ✓ You need solar panel installation, removal and reinstallation, or EV charger work, as Building Efficiency doesn't offer these services
- ✓ You value direct owner engagement throughout your project and can tolerate potential permitting delays
- ✓ You're working through a solar equipment provider who subcontracts installation and Trulysun Energy is their installer
- ✓ Your project is straightforward with no unusual structural complications that require deep institutional experience
Consider Building Efficiency if...
- ✓ You need heat pump installation, insulation upgrades, ductwork, or HVAC system replacement
- ✓ Your home is older with potential hidden complications that require experienced problem-solving during installation
- ✓ You're pursuing multiple energy efficiency upgrades simultaneously and need proper system integration
- ✓ You need reliable guidance through rebate applications and equipment sizing decisions
- ✓ Timeline predictability matters and you want to minimize permitting and inspection complications
Questions to Ask Before Hiring
- → Ask Trulysun Energy specifically how they've improved their permitting and inspection process since earlier customer feedback, and what their current timeline is from installation to final approval
- → Ask Building Efficiency for references from solar projects if you're considering adding solar to an HVAC upgrade, or confirm they can coordinate with a solar contractor
- → Ask both companies for examples of projects in homes similar to yours in age and condition, particularly if you have a historic property
The Bottom Line
Your decision depends entirely on what work you need done. For solar installations or EV chargers, Trulysun Energy is your only option between these two, though their permitting challenges and limited experience warrant careful timeline discussions before signing. For heat pump installation, insulation, ductwork, or HVAC work, Building Efficiency is clearly the stronger choice with 16 years of experience, consistent feedback on technical expertise, and no reported administrative complications. If you're planning comprehensive home electrification including both solar and HVAC upgrades, you'll need both contractors or should look for a company that handles the complete scope to avoid coordination headaches.
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Frequently Asked Questions
No, these companies have different specializations. Trulysun Energy handles solar and electrical work but not HVAC systems. Building Efficiency specializes in heat pumps and HVAC but doesn't install solar panels. For a complete home electrification, you'd need to hire both contractors or ask if either can coordinate with a partner company to manage the full scope.
It matters most when complications arise. For a simple solar installation on a newer home with no structural surprises, Trulysun Energy's four years may be sufficient. However, Building Efficiency's 16 years becomes valuable when dealing with San Francisco's older housing stock, where hidden issues require immediate problem-solving without delays. The permitting challenges mentioned in Trulysun Energy's reviews suggest their newer status does impact project timelines even on standard work.
Building Efficiency receives specific customer praise for guiding homeowners through rebate applications, suggesting they have refined this process over 16 years. Trulysun Energy's reviews don't mention rebate assistance, though solar projects typically involve different incentive programs than HVAC upgrades. Ask Trulysun Energy directly about their experience with solar rebates and tax credit documentation if this matters to your project.
Yes, this is a legitimate concern that could affect your timeline. Permitting and inspection issues can delay project completion and your ability to activate your solar system, even if the physical installation goes smoothly. When contacting Trulysun Energy, ask specifically what they've changed in their process, what their current average timeline is from installation to final approval, and whether they'll guarantee a completion date. This will help you assess whether they've resolved earlier problems.
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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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