159 AC Replacement Contractors in Indianapolis, IN

Indianapolis has humid summers reaching 85°F and cold Midwest winters averaging 21°F. Heating demand dominates the calendar here — systems run hard from November through March — but summer humidity creates real cooling loads as well. With 15 contractors averaging 4.8 stars from 18,170 reviews and 12 offering 24/7 availability, this is one of the most competitive and well-reviewed HVAC markets in the Midwest.

Indianapolis replacement costs run slightly above national midpoints: a 3-ton central AC system lands $6,160–$12,320, a 4-ton mid-efficiency unit $8,400–$15,680, and a 5-ton high-efficiency system $10,640–$17,920. Indiana has no statewide HVAC contractor license — licensing is handled at the city and county level. Ask contractors specifically about their Indianapolis or Marion County registration before scheduling.

One Hour Heating & Air Conditioning delivers on its punctuality brand promise — customers document full furnace and AC replacement in under six hours from initial contact to completed installation. Benjamin Franklin Plumbing of Indianapolis has nearly 6,000 reviews at 4.8 stars, with technician Seth praised for clear communication throughout complex replacement projects. LCS Heating and Cooling is co-owned by Renee and Travis, who receive individual recognition for both service quality and HVAC business expertise — reviewers note the company's particular strength in furnace diagnostics translates into sharp installation and system selection guidance.