Product Air Heating, Cooling and Electric has officially achieved Elite Diamond Contractor status with Mitsubishi Electric, the highest tier in Mitsubishi’s three-level contractor program. Fewer than 5% of Mitsubishi contractors in the United States, approximately 150 companies out of roughly 3,000 Diamond Contractors nationwide, hold this designation.
In Washington State, only a small number of HVAC companies have reached the Elite Diamond level.
The certification recognizes sustained installation volume, advanced technical training, operational discipline, and ongoing performance monitoring by Mitsubishi Electric.
“We did not receive this status overnight,” said Serge Nikolin, co-founder of Product Air. “It took years of structured growth, continuous training, and consistent performance. Mitsubishi doesn’t hand out Elite Diamond recognition casually. You earn it over time.”
What Elite Diamond Status Requires
Mitsubishi’s contractor program includes three levels: Standard, Diamond, and Elite Diamond. Elite Diamond contractors must complete advanced residential and service training, meet strict response-time requirements, maintain annual system registration thresholds, and undergo ongoing performance monitoring related to service quality, marketing standards, and customer satisfaction metrics.
Elite Diamond contractors also receive:
● Access to a 12-year parts and compressor warranty on Mitsubishi installations
● Priority allocation of equipment and replacement parts
● Direct technical support from Mitsubishi engineering
● Ongoing manufacturer oversight and accountability
According to NETR Inc., fewer than one in twenty Mitsubishi contractors nationwide reach the Elite Diamond tier.
Volume and Operational Scale
In 2025 alone, Product Air completed more than 150 Mitsubishi heat pump and AC installations across Western Washington, serving communities including Marysville, Bellevue, Kirkland, Shoreline, Mercer Island, Everett, Issaquah, and Seattle.
The company recently surpassed 5,000 residential clients and now operates from three locations: Marysville, Issaquah, and Seattle.
“We focus on structure,” Serge said. “Training, permits, inspections, documentation. Everything is done correctly and transparently. Elite Diamond status confirms that the way we’ve been operating meets Mitsubishi’s highest standard.”
Why Mitsubishi and Why the Ecosystem Matters
Serge emphasized that the company’s partnership with Mitsubishi is based not only on equipment performance, but also on the strength of the supply chain ecosystem.
Mitsubishi products in Washington are distributed through Gensco, the region’s largest HVAC supply house and Mitsubishi’s authorized distributor on the West Coast. This partnership enables faster access to parts, localized engineering support, and improved response times during supply constraints.
“If a system needs service years from now, we don’t want homeowners waiting weeks for parts,” Serge said. “The ecosystem behind the equipment matters just as much as the equipment itself.”
What This Means for Homeowners
For homeowners in Western Washington, particularly in older housing stock where electrification upgrades, panel replacements, and cold-climate performance are critical, Elite Diamond status provides measurable advantages.
The designation signals:
● Verified training and continuing education
● Manufacturer-backed warranty protection
● Faster parts availability
● Documented installation standards
● Ongoing oversight by Mitsubishi
Product Air states that its goal is not simply to install equipment, but to deliver long-term reliability.
“Certifications don’t install systems. People do,” Serge added. “But when the certification is rare and performance-based, it tells you something about the people behind it.”
About Product Air Heating, Cooling, and Electric
Product Air Heating, Cooling, and Electric is a family-run company founded in 2017 by the Nikolin brothers. Based in Marysville, Issaquah and Seattle, Washington, the company provides heating, cooling, electrical, and backup power solutions for residential customers throughout Snohomish County and the greater Seattle region. The company has completed more than 5,000 residential projects.
With more than 100 years of combined industry experience, Serge Nikolin and his team focus on long-term comfort, honest recommendations, and practical solutions that help homeowners protect their families and their homes.
For more information about Product Air’s Mitsubishi partnership, visit: https://productairheating.com/mitsubishi-diamond-partner/
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Media Contact
Product Air Heating, Cooling, and Electric
Address: 6850 35th Ave NE 9, Seattle, WA 98115, United States
Phone: (425) 344-3738
Site: https://productairheating.com/
