AC Serivice Installations Spring TX. Quality Comfort Air provides air duct replacement, zoning, free equipment estimates, installations service, and more in Spring TX. Don't worry, our comfort specialist are here to help get your ac unit back up and running quickly. In most cases air conditioning repairs can be made instead of replacing expensive ac equipment. We are commited to providing excellent service for your air conditioning repairs. We also take pride in providing you with quality parts, backed with a minimum one year warranty.