Founded in 1945, W. D. Manor Mechanical Contractors provides a wide range of plumbing and heating services. The company offers 24-hour emergency repair service, preventive maintenance contracts, mechanical equipment service and repair, re-piping and retrofits, large tonnage chiller service and repair, steam and hot water boilers, backflow prevention certification and repair, primary and secondary pumping systems, booster pump system and recirculating pumps. In addition, the company provides ejector and injector pump service and repair, installation of sewer and water service taps and mains, sewer stoppage removal services and medical gas installations. The company also offers sheetmetal and pipe fabrication, orbital welding, a variety of various tooling and equipment, and a full array of job costing and billing services. W. D. Manor Mechanical Contractors maintains its headquarters and support facilities in Phoenix.