Six Star AC & Refrigeration is a veteran-owned HVAC and plumbing company serving Phoenix and a broad swath of the metro area with a perfect 5.0-star rating from 185 Google reviews. The service scope is notably wide: HVAC installation, repair, and maintenance for both residential and commercial applications; furnace and heat pump work; air quality; commercial refrigeration including ice machine service; and a full plumbing division covering drain cleaning, leak detection, water heater replacement, sewer repair, water softener installation, water line repair, new construction plumbing, and remodel plumbing.

The refrigeration and commercial plumbing capability differentiates Six Star from most residential-only contractors — a business that needs both HVAC and commercial refrigeration serviced can use Six Star as a single vendor.

Technician Matthew (also spelled Mathew in reviews) is the named standout across this review set. He is praised specifically for honest communication, clear explanations for non-technical customers, and professional behavior that impressed both property owners and staff. One property management company's employees were so pleased with Matthew that the company is adopting Six Star as their preferred vendor. The company also handles warranty registration after installations and follows up to verify systems are running correctly.

Communication quality is a recurring theme: one commercial customer specifically notes the clarity and professionalism of text message communication throughout the job — transparent, not pushy, explaining what's actually needed.

Service is available Monday through Saturday, 7 AM to 7 PM, with no Sunday hours. Online booking is available. Financing is offered. The service area spans Phoenix, Scottsdale, Glendale, Peoria, Mesa, Gilbert, Tempe, Chandler, Paradise Valley, Fountain Hills, Cave Creek, Carefree, Anthem, Sun City, and Surprise.