Compare Local Pros
Building Efficiency vs Kevel Home Performance
San Francisco HVAC Contractors Comparison · Updated March 2026
Building Efficiency brings nearly twice the licensed experience with strong heat pump specialization, while Kevel offers solid capability at a potentially more accessible price point.
| Building Efficiency | Kevel Home Performance | |
|---|---|---|
| Rating | ★ 4.9 | ★ 5.0 |
| Years Licensed | 16 years | 9 years |
| License # | 947504 | 1021221 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | San Francisco, CA | San Francisco, CA |
| Website | buildingefficiency.net | www.kevelhome.com |
Key Differences
What Customers Say
Building Efficiency
Customers consistently praise Building Efficiency's technical consultation, proper equipment sizing, and ability to execute comprehensive electrification projects combining multiple systems in challenging older homes.
Kevel Home Performance
Customers highlight Kevel Home Performance's thorough upfront energy assessments, professional installation quality, and careful attention to historic property requirements.
Key Takeaway: Building Efficiency receives specific recognition for system design expertise and handling complex multi-trade electrification projects, while Kevel's strength centers on assessment thoroughness and competent execution of more traditional HVAC upgrades.
Customer Reviews
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.
Kevel Home Performance
We recently moved to our new home and had to replace a super old antique furnace. We hired Kevel to completely redo all our ducting and install a new high efficiency furnace. Brian, Jeff, and Eric ar...
We have a 150 year-old victorian condo and the windows are somewhat newer, but the house was not sealed completely. Brian and his team came in and did a leak test, went above and beyond to seal the bu...
First rate operation. Kevel came to us by way of our asking for assistance in taking advantage of the Energy Upgrade California Program. We were working with Charles Windows and Doors of San Rafael,...
Consider Building Efficiency if...
- ✓ Your project involves transitioning from gas to electric systems with heat pump installation, where Building Efficiency's specialization in home electrification and equipment sizing expertise directly addresses the technical complexity
- ✓ Your home is very old (pre-1940s) with unusual spatial constraints or hidden structural challenges that benefit from 16 years of institutional knowledge diagnosing problems in historic San Francisco properties
- ✓ You're planning a comprehensive energy upgrade combining multiple systems (heat pump, insulation, ductwork) where coordination between trades and proper system design becomes critical
- ✓ You need detailed consultation on rebate navigation and equipment selection, an area where customers specifically highlight Building Efficiency's guidance
Consider Kevel Home Performance if...
- ✓ Your project is a more straightforward HVAC replacement or air sealing work where 9 years of solid experience provides adequate expertise without requiring veteran-level problem-solving
- ✓ You prioritize thorough upfront energy assessments and leak testing, which customers specifically mention as Kevel's strength before beginning work
- ✓ Budget is a primary concern and you're looking for capable execution on standard efficiency upgrades rather than cutting-edge electrification projects
- ✓ You're working with custom solutions like window inserts rather than full replacements, an area where Kevel has documented project experience
Questions to Ask Before Hiring
- → Ask Building Efficiency for timeline estimates on combined electrification projects and whether their comprehensive approach affects project duration compared to single-system upgrades
- → Ask Kevel about their specific experience with heat pump installations versus traditional furnace work, and how many full electrification conversions they've completed
- → Confirm with both companies how they handle unexpected issues discovered in very old homes and whether their estimates include contingency for hidden problems
- → Request references from projects similar in scope to yours, particularly asking Building Efficiency for electrification projects and Kevel for assessment-driven upgrades
The Bottom Line
Building Efficiency is the stronger choice for most homeowners planning heat pump installations or comprehensive electrification projects in older San Francisco homes. The 16 years of experience translates to better problem diagnosis, more refined system design, and proven capability handling the multi-trade coordination these complex upgrades require. Customers consistently recognize their consultation expertise and equipment sizing knowledge. Kevel Home Performance remains a solid option for straightforward HVAC replacements, air sealing work, or situations where budget constraints outweigh the benefits of veteran experience. For projects involving spatial challenges, very old homes, or first-time electrification where getting the system design right matters significantly, Building Efficiency's track record justifies going with the more experienced contractor.
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Frequently Asked Questions
It depends on project complexity. For a straightforward furnace replacement, Kevel's nine years provides adequate expertise. For heat pump installation requiring careful sizing, ductwork modifications, and coordinating insulation upgrades in an older home, Building Efficiency's 16 years translates to more scenarios encountered and solved. Veterans have typically seen more hidden problems in century-old homes that can derail projects handled by less experienced contractors.
Building Efficiency specifically mentions working with homes 85 to 100 years old and customers highlight their ability to solve challenging installations with spatial constraints. Kevel has experience with Victorian properties and air sealing work, but the feedback emphasizes assessment thoroughness rather than solving complex installation challenges. For homes with unusual structural quirks or very limited space for modern equipment, Building Efficiency's track record is more extensive.
Building Efficiency clearly specializes in comprehensive electrification projects, with customer feedback specifically mentioning complete transitions combining heat pumps, insulation, and ductwork. Their consultation on equipment sizing and system design directly supports these complex conversions. Kevel's documented projects lean toward traditional HVAC replacements and air sealing. If you're eliminating gas entirely, Building Efficiency's specialization matches your need; for furnace upgrades, either can handle it competently.
The data doesn't include pricing information, so you'll need to request quotes directly. Generally, veteran contractors command higher rates but may complete complex projects more efficiently with fewer change orders. Kevel may offer more competitive pricing on standard projects, but verify quotes cover the same scope. Ask both companies for itemized estimates that separate labor, materials, and permit costs so you can compare accurately.
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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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