Job Description. Job Description. For over 37 years, Wilbur Plumbing, Heating & AirĀ has been recognized in The Harrisburg area as being synonymous with quality, craftsmanship, hard work, and expertise that is second to none. We've built our loyal customer base by hiring only the best Plumbing and HVAC technicians we can find and are looking to add to our team. Our expertise is established in residential service, conducting. repairs/replacement. w...