Velocity Air is well-versed in the maintenance of various air conditioning systems. Is your air conditioning unit not functioning optimally? Contact us, as we are a reputable air conditioning company with accreditation, capable of repairing your malfunctioning air conditioner. We handle jobs of all sizes, and we can also provide replacement parts if needed.he highest standards. Whether you are in Johannesburg or anywhere nationwide, our team is ready to meet with you and get the job done right.