D Air Conditioning Company

D Air Conditioning Company operates from Westminster, California, and holds a 2.9-star rating across 12 customer reviews. Established to serve both residential and commercial clients, this contractor extends its reach beyond Orange County into the Bay Area, covering cities such as Cupertino, Fremont, Palo Alto, San Francisco, San Jose, and Oakland. The company maintains standard weekday and weekend hours, serving homeowners and business owners across these diverse markets throughout the greater Southern and Northern California regions.

What distinguishes D Air Conditioning Company is its specialization in ductless mini-split systems, which the company highlights as consuming considerably less energy than conventional duct setups prone to losing up to 30 percent efficiency. Customer reviews confirm the company as a Lennox dealer, with multiple homeowners reporting installations of Lennox systems priced competitively against big-box retailers like Costco and Home Depot. The contractor also offers financing options and maintains a showroom where prospective clients can examine equipment firsthand before committing to an installation or upgrade.

Reviewers who reported positive experiences cited specific technician teams by name for their professionalism duringLennox central air installations. One customer described technicians who completed a five-tonLennox system install with precision and speed, while another noted an installation team whose work looked clean and professional. However, several negative reviews documented frustrating experiences: one customer waited six working days without a salesperson callback after three outreach attempts, while another reported that an air balance test for a restaurant was calculated incorrectly and rejected by the Health Department, requiring rework.