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All Air Mechanical Contractor vs Pribuss Engineering
San Mateo HVAC Contractors Comparison · Updated March 2026
Both are veteran contractors with identical protections, but they serve completely different specialties—HVAC systems versus building engineering and fire sprinklers.
| All Air Mechanical Contractor | Pribuss Engineering | |
|---|---|---|
| Rating | ★ 3.4 | ★ 4.1 |
| Years Licensed | 21 years | 58 years |
| License # | 851335 | 251241 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | South San Francisco, CA | So San Francisco, CA |
| Website | www.allairmechanical.com | www.pribuss.com |
Key Differences
What Customers Say
All Air Mechanical Contractor
Customers praise All Air's technicians for thorough HVAC installations and technical competence, but consistently criticize office communication and scheduling coordination.
Pribuss Engineering
Pribuss receives recognition for quick response times, specialized knowledge of older buildings and fire sprinkler systems, and maintaining successful long-term client relationships spanning many years.
Key Takeaway: All Air faces front-office communication challenges despite strong field work, while Pribuss earns praise for responsive service and relationship continuity across their specialized engineering focus.
Customer Reviews
All Air Mechanical Contractor
The mechanic was very helpful and nice and did everything he can to make sure our heater was working. He was awesome 10/10. Although the coordinator/schedule person has HORRIBLE communication skills. ...
Awesome experience with All Air Mechanical. Hussen , 10 years experience ,which showed replacing air conditioning unit , control pad and swap fan, did an awesome throughly job. Got things up and runn...
Reliable, answered all my questions.
Pribuss Engineering
I was experiencing a leak at home with one of my fire sprinklers and this was a really great experience. Dave Turner was a great help given his knowledge of fire sprinklers and with his extensive expe...
They have been helping us take care of a 100 years six unit building for decades. A building this age has problems from time to time. These guys have always shown up ASAP and have solved the vario...
Consider All Air Mechanical Contractor if...
- ✓ You need HVAC work—furnace replacement, air conditioner installation, heating repairs, or climate control system maintenance
- ✓ Your project is straightforward residential HVAC equipment replacement where technical installation skill matters more than complex building system knowledge
- ✓ You can manage communication proactively by getting commitments in writing and confirming schedules directly, compensating for reported office coordination challenges
- ✓ Your property is relatively modern and doesn't require specialized expertise with older building systems
Consider Pribuss Engineering if...
- ✓ You need fire sprinkler system work, repairs, or inspections that require specialized engineering knowledge
- ✓ Your building is older and may have complex, interrelated systems that benefit from Pribuss's 58 years of institutional experience
- ✓ You own a multi-unit property requiring ongoing maintenance relationships rather than one-time equipment replacement
- ✓ Responsive service and long-term reliability matter more to you than the lowest possible price, given their track record of decade-long client relationships
Questions to Ask Before Hiring
- → Confirm with All Air Mechanical how you'll receive scheduling updates and who your primary contact will be to avoid the communication issues other customers reported
- → Ask Pribuss Engineering whether your specific project type falls within their current service focus, as their specialty areas differ significantly from standard HVAC work
- → Request recent references for projects similar to yours in scope and building age, particularly important given how specialized both companies are
The Bottom Line
This isn't a competitive choice—these contractors serve different specialties entirely. Hire All Air Mechanical if you need HVAC work: furnace replacement, air conditioner installation, or heating system repairs. Be prepared to manage communication proactively by confirming schedules in writing. Hire Pribuss Engineering if you need fire sprinkler work, building engineering services, or maintenance for older complex properties where their 58 years of specialized experience provides real value. Both carry full insurance and bonding, so your decision should be driven purely by what type of work you need completed.
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Frequently Asked Questions
No, these companies serve different specialties. All Air Mechanical handles HVAC systems exclusively—heating and air conditioning equipment. Pribuss Engineering focuses on building engineering including fire sprinkler systems. You'll need to hire them separately for different aspects of building work.
Only if you're hiring Pribuss for what they do—building engineering and fire systems. Their extra decades provide deeper knowledge for complex older buildings and specialized systems. For straightforward HVAC replacement, All Air's 21 years provides more than sufficient experience for residential heating and cooling work.
Customer feedback specifically criticizes office staff responsiveness and scheduling coordination, while praising the technical crews. If you hire them, get all commitments in writing, confirm appointments directly, and establish a clear primary contact. The installation work itself receives positive feedback for thoroughness.
It depends what systems need work. For aging HVAC equipment, All Air has two decades of installation experience. For building engineering concerns, fire sprinklers, or complex multi-system issues in century-old properties, Pribuss explicitly specializes in older buildings and has customer feedback confirming this expertise.
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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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