Compare Local Pros
All 1 Mechanical vs Das Mechanical
Placer HVAC Contractors Comparison · Updated March 2026
All 1 Mechanical brings more experience and commercial expertise, while Das Mechanical offers broader service capabilities including electrical work.
| All 1 Mechanical | Das Mechanical | |
|---|---|---|
| Rating | ★ 4.8 | ★ 5.0 |
| Years Licensed | 8 years | 6 years |
| License # | 1039821 | 1059497 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Roseville, CA | Meadow Vista, CA |
| Website | www.all1mechanical.com | dasmechanical.org |
Key Differences
What Customers Say
All 1 Mechanical
Customers consistently highlight All 1 Mechanical's diagnostic abilities and cost-saving repairs, with technicians identifying solutions where other contractors recommended full replacements.
Das Mechanical
Das Mechanical receives frequent recognition for installation quality on newer HVAC technologies, clean workmanship, and detailed option presentations with rebate assistance.
Key Takeaway: All 1 Mechanical's strength appears in complex diagnostics and repair situations, while Das Mechanical excels at clean installations of modern systems and multi-trade projects combining HVAC with electrical work.
Customer Reviews
All 1 Mechanical
All 1 Mechanical did a great job installing our HVAC system. They were on time, professional, and easy to work with. Communication was clear throughout the process, and they took the time to answer my...
Manny is a lifesaver. Kitchen was hot as hell. Mannys gracefully pulled them out and plopped them into cooking heaven. Swamp cooler was at 90, gross and full of rubbish. Now it's clean and blowing out...
Our experience was fantastic. Where other companies said our unit needed to be replaced, A1 came out and really looked at our set up and found the problem. They fixed it quickly and with no issues....
Das Mechanical
Always proffeional and technically proficient.hard to get ahold of them but totally worth it.
Great experience beginning to end! Thanks to Nick and the team at DAS, our new ADU got a great mini-split system and ERV system installed -- high quality products and super clean install! Thanks and...
Friendly, good and honest people.
Consider All 1 Mechanical if...
- ✓ You have an older HVAC system and want thorough diagnostics before committing to replacement, given customer reports of All 1 Mechanical repairing what others wanted to replace
- ✓ Your project involves commercial property or larger packaged HVAC systems where their commercial experience becomes relevant
- ✓ You're dealing with a problematic system requiring troubleshooting expertise rather than straightforward installation
- ✓ You value a contractor with slightly more years navigating uncommon HVAC complications and hidden issues
Consider Das Mechanical if...
- ✓ Your project combines HVAC and electrical needs like adding a generator alongside AC work, avoiding coordination between separate contractors
- ✓ You're specifically interested in heat pump or mini-split installations where customers highlight their clean installation work
- ✓ You need service during holidays or peak seasons when their documented availability becomes valuable
- ✓ You want detailed options presented for system upgrades with assistance navigating rebate programs
Questions to Ask Before Hiring
- → Ask All 1 Mechanical about their approach when diagnosing a system another contractor recommended replacing—what's their repair-versus-replace threshold?
- → Ask Das Mechanical whether your project requires coordination between their HVAC and electrical teams or if one technician handles both aspects
- → Ask both companies about their current scheduling availability and whether emergency rates apply for your timeline
- → Request references from projects similar in scope to yours, particularly for commercial work with All 1 Mechanical or combined electrical-HVAC projects with Das Mechanical
The Bottom Line
Both contractors are properly credentialed, experienced, and customer-approved. Choose All 1 Mechanical if your priority is maximum diagnostic expertise, you're dealing with commercial property or complex troubleshooting, or you value the additional two years of licensed experience for peace of mind on challenging repairs. Choose Das Mechanical if your project involves electrical components like generators or panel upgrades, you're installing newer technologies like heat pumps or mini-splits, or you need a contractor with documented holiday availability. For straightforward residential HVAC work, either company represents a solid choice—let service area convenience and current availability guide your decision.
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Frequently Asked Questions
For straightforward residential installations, both companies have sufficient experience. The gap becomes more relevant if you're dealing with diagnostic challenges, older systems with potential hidden issues, or commercial properties where All 1 Mechanical's additional experience and commercial background provide more depth. For standard residential replacements or newer technology installations like mini-splits, both are well-qualified.
Only if your project actually requires electrical services like panel upgrades, generator installation, or circuit additions for new HVAC equipment. If you're just replacing an existing system using current electrical infrastructure, this advantage doesn't apply. However, if you're upgrading to higher-capacity equipment that needs electrical work, having one contractor handle both aspects simplifies coordination and accountability.
Both companies receive strong feedback for emergency responsiveness with same-day and next-day service mentioned frequently. Das Mechanical has specific customer mentions of holiday and peak-season availability, which may indicate slightly better coverage during high-demand periods. Ask both about their current emergency response times and after-hours availability when you call.
All 1 Mechanical has specific customer feedback about identifying repair solutions when other contractors recommended replacement, suggesting strong diagnostic capabilities and a repair-first approach. Their additional experience and commercial background may provide deeper troubleshooting expertise for complicated systems. Ask them directly about their diagnostic process and what percentage of their calls result in repairs versus replacements.
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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 05, 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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