Compare Local Pros
Ace Furnace vs Cp Mechanical
San Mateo HVAC Contractors Comparison · Updated March 2026
Ace Furnace brings 61 years of experience versus Cp Mechanical's 37 years, with both offering full protection but Ace showing broader HVAC capabilities.
| Ace Furnace | Cp Mechanical | |
|---|---|---|
| Rating | ★ 4.9 | ★ 5.0 |
| Years Licensed | 61 years | 37 years |
| License # | 235989 | 558197 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | South San Francisco, CA | San Mateo, CA |
| Website | — | cpmechanical.com |
Key Differences
What Customers Say
Ace Furnace
Customers consistently praise Ace Furnace for rapid emergency response with same-day service, efficient single-visit repairs, and clear technical explanations across diverse heating and cooling problems.
Cp Mechanical
Customers highlight Cp Mechanical's personalized approach with high owner involvement, professional explanations during heating installations, and prompt 24-hour response times on furnace issues.
Key Takeaway: Ace operates as a high-efficiency emergency repair service handling both heating and cooling across residential and commercial properties, while Cp Mechanical emphasizes consultative heating work with direct owner engagement.
Customer Reviews
Ace Furnace
I'm giving this company five stars for the amazing job they did on our home AC repair service. They sent out a really skilled technician who handled everything professionally. I've always appreciated ...
I'd recommend this company to anyone. I found them online and took a chance-so glad I did! The technician did a superb air conditioning repair and was super pleasant to work with. He stayed profession...
I'm really thankful for the work they did on my furnace that was not blowing. The technician was professional, arrived right on time, and gave awesome customer service. The repair was solid and didn't...
Cp Mechanical
Fixed my old gas furnace. Great job! Prompt, professional and fair priced. Would recommend and use again.
Fixed the furnace within 24 hours of when I called to make an appointment. Very friendly and knowledgeable. Thank you!
Prompt and efficient!
Consider Ace Furnace if...
- ✓ You need air conditioning repair or service, as Ace handles both heating and cooling while Cp Mechanical's track record emphasizes heating systems
- ✓ Your HVAC emergency requires same-day response, given Ace's consistent pattern of rapid service and single-visit repair completion
- ✓ You have an older or unusual HVAC system where 61 years of diagnostic experience increases the likelihood technicians have encountered your specific problem
- ✓ You operate a commercial property needing HVAC service, as Ace explicitly handles commercial work while Cp Mechanical's reviews focus on residential projects
Consider Cp Mechanical if...
- ✓ Your project involves furnace installation or replacement where you value detailed explanation of equipment options and high owner involvement throughout the process
- ✓ You prefer working directly with ownership rather than dispatcher-assigned technicians, as Cp Mechanical demonstrates high owner involvement
- ✓ Your heating system needs personalized consultation beyond straightforward repair, given customer feedback emphasizing the educational approach technicians provide
- ✓ You're located closer to San Mateo proper where Cp Mechanical is based, potentially reducing travel time for follow-up visits
Questions to Ask Before Hiring
- → Ask Ace Furnace whether the same technician who diagnoses your issue will complete the repair, given their volume and same-day service model
- → Ask Cp Mechanical about their air conditioning capabilities if your project might expand beyond heating, since reviews focus heavily on furnace work
- → Ask both companies how their pricing structure differs between emergency same-day calls and scheduled appointments
- → Ask about warranty coverage on repairs and whether follow-up visits within a certain timeframe are included at no charge
The Bottom Line
Ace Furnace is the stronger choice for most homeowners needing HVAC service in San Mateo County. The 61-year operating history provides unmatched diagnostic experience, their demonstrated capability across both heating and cooling systems offers complete coverage, and their same-day emergency response pattern serves urgent breakdowns effectively. Choose Cp Mechanical if your project specifically involves furnace installation where you want high owner involvement and consultative equipment selection, or if heating-only service with personalized attention outweighs the broader capabilities Ace offers. For air conditioning issues, complex diagnostics on older systems, or time-sensitive repairs, Ace's track record makes it the clear recommendation. Both companies carry full protection and operate legitimately, so your decision hinges on whether you prioritize Ace's comprehensive speed and scope or Cp Mechanical's personalized heating focus.
Get Up to 3 Free Quotes
Compare prices from licensed, verified contractors
Frequently Asked Questions
For simple component replacements on newer equipment, both contractors have sufficient expertise. The gap becomes meaningful when your furnace displays intermittent problems, requires diagnosis across multiple systems, or involves equipment over 15 years old where Ace's additional decades troubleshooting similar units provides advantage. If your issue is straightforward, both can handle it competently.
Ace Furnace shows a stronger pattern for emergency cooling repairs with multiple customers reporting same-day AC service and single-visit resolution. Cp Mechanical's reviews emphasize heating work without specific mention of air conditioning projects. For urgent cooling needs, Ace's demonstrated AC repair capability and rapid response pattern makes it the clearer choice.
Cp Mechanical's high owner involvement and customer feedback about explaining options during installations suggests a more consultative approach to equipment selection. Ace's efficiency focus serves repair emergencies well but may offer less extensive consultation on new installations. For replacement projects where you want detailed equipment comparisons, ask Cp Mechanical about their assessment process.
Yes, both have operated long enough to have installed and serviced systems from those eras. Ace's 61 years means their technicians have likely worked on your exact equipment model when it was common, while Cp Mechanical's 37 years still covers that timeframe. For obsolete or discontinued systems requiring creative solutions, Ace's longer experience span provides marginally more exposure to legacy equipment.
Looking for the Best?
See our ranked list of top hvac contractors in San Mateo.
Other San Mateo HVAC 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 07, 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.