A.J. MichaelsHVAC contractor in Baltimore, MD

A.J. Michaels is ranked #19 of 649 HVAC contractors in Baltimore by CR Score, with 61 out of 100 as of October 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

A.J. Michaels is open 24 hours a day, 7 days a week. Its listed hours are Open 24 hours, 7 days a week. On Saturdays it is open Open 24 hours, and on Sundays Open 24 hours. Hours come from the business listing; holiday hours may differ.

Serves Baltimore and 11 towns within 25 miles: Charles Village, Towson, Parkville, Overlea, Rosedale, Lutherville, Hampton, Carney, Lochearn, Pikesville and Timonium. The list is based on the business's location and the usual service radius for heating and cooling. Confirm your address is covered when you call.

A.J. Michaels has a rating of 4.5 from 309 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

Call A.J. Michaels on (410) 435-5400. The business is at 4512 York Rd, Baltimore, MD 21212. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.