Semper Fi Heating and Cooling is a veteran-owned and operated HVAC company with over 10 years serving the Phoenix metro area. Operating 24/7 across Arizona and Nevada, the company has earned more than 8,000 five-star reviews across locations and markets — one of the highest review counts of any HVAC operator in the Southwest. The Phoenix operation runs at a 4.8-star rating from 162 local reviews.

The company offers a comprehensive service lineup: AC and furnace installation, repair, and maintenance; ductless mini-split systems; Aeroseal duct sealing; REME HALO air purification; UV light systems; attic insulation; thermostat and smart thermostat installation; and a full plumbing division covering water heaters, sewer line repair, gas line repair, water softeners, shower repair, and slab leaks. The combination of full HVAC plus plumbing under one roof is a meaningful convenience advantage for homeowners.

A $17.75 tune-up offer serves as a low-cost entry point, and same-day service is a consistent operational commitment. Financing is available with quick approval. The company services all major brands including Allied, Champion, Coleman, Johnson Controls, Lennox, and Midea.

One notable differentiator: Semper Fi offers a 20% discount for veterans, first responders, and their families — a direct expression of the company's military origins.

Customer reviews reflect a high level of satisfaction with individual technicians. Technician Eric, installer Tim, salesperson Austin, and other named staff are praised for patience, follow-through, and clear communication. One customer had a 17-year-old unit replaced — including a portable AC loaner while the new system was scheduled — within days of initial contact.

There is one recurring theme in negative reviews worth noting: some customers describe a high-pressure sales approach, with technicians encouraging replacement of functioning systems during service calls. The 1-star review in the most recent batch specifically describes a technician who stayed for over an hour pushing a new unit on a system that was working — and still working two years later. Prospective customers should feel comfortable asking for a second opinion before any major replacement recommendation.

For Phoenix homeowners who want a veteran-owned company with deep capacity, 24/7 availability, broad service coverage across HVAC and plumbing, and significant financing flexibility, Semper Fi is a large, well-resourced operation. Call (623) 283-2272 or book at semperfiheatingcooling.com.