Mitsubishi Diamond Contractor in Baltimore, MD
AIRSOURCE, LLC is factory-trained and listed on Mitsubishi Electric Trane HVAC US's official contractor directory, here's what that certification actually means for your installation and warranty.
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Not every installer earns this.
AIRSOURCE, LLC is listed as a Diamond Contractor on Mitsubishi Electric Trane HVAC US's official contractor directory. Diamond Contractors have completed advanced factory training directly from Mitsubishi Electric Trane HVAC US, with ongoing product, service, and installation updates, training most installers never receive, since it comes straight from the manufacturer, not a generic HVAC license.
Recognition is awarded at different levels based on training depth and performance. AIRSOURCE currently holds Standard-tier Diamond Contractor status.
Per Mitsubishi Electric Trane HVAC US's own published terms, choosing a Diamond Contractor to install your system extends the residential product warranty to 12 years, well beyond standard coverage.
What the training actually covers
Diamond Contractor status isn't a logo you buy, it's tied to factory training on how Mitsubishi Electric systems are supposed to be installed.
Factory Training
Training comes directly from Mitsubishi Electric Trane HVAC US, not a generic HVAC certification, covering the specifics of their ducted and ductless product lines.
Ongoing Updates
Product, service, and installation training continues over time as Mitsubishi Electric updates its systems, it isn't a one-time class.
Listed & Verifiable
AIRSOURCE's status is listed on Mitsubishi Electric Trane HVAC US's own official contractor directory, not just a claim made on this site.
12-Year Warranty
Mitsubishi extends its residential product warranty to 12 years on systems installed by a Diamond Contractor.
Advanced Training
Factory-trained directly by Mitsubishi Electric Trane HVAC US, with ongoing product and installation updates.
Independently Verifiable
Not a claim on our word alone, AIRSOURCE's listing is on Mitsubishi's own official contractor directory.
Mitsubishi Diamond Contractor: frequently asked questions
Diamond Contractor is Mitsubishi Electric Trane HVAC US's certification for HVAC companies that complete the manufacturer's own factory training on its ducted and ductless systems, with ongoing product, service, and installation updates. It isn't a certification every installer holds.
Yes. AIRSOURCE, LLC is listed as a Diamond Contractor on Mitsubishi Electric Trane HVAC US's official contractor directory, independently confirmed, not just a claim made on this site.
Recognition is awarded at different levels based on training depth and performance. AIRSOURCE currently holds Standard-tier Diamond Contractor status.
Yes. Per Mitsubishi Electric Trane HVAC US's own published terms, choosing a Diamond Contractor for your installation extends the residential product warranty to 12 years, well beyond standard coverage.
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