Serving Rapid City, SD and the Surrounding Areas

RNJ Auto Inc - Logo Auto repair Auto heating and ac Auto AC

Improve your heating and AC system

Your family deserves to be comfortable while riding in your automobile. Keep them cool in the summer and warm in the winter with heating and AC services from the experts at RNJ Auto Inc.

  • Repairs

  • Replacements

  • Service

  • Maintenance

Exclusive heating and AC services

Allow our professionals to repair and replace fans, perform routine cooling system flushes, and check and maintain your AC and heating systems. We offer fast availability and low labor rates. Trust a family owned and operated business.

Repair your heating and AC now

Call now for a FREE estimate.


Get quality automobile parts at a competitive price.