Certification: Certifications are not requirements, but they do help plumbers regarding career advancement. Once the plumber has completed the apprenticeship and has successfully gotten their license, they will be eligible to sit for the certification exams. There are a few different certifications available to plumbers. Through the Plumbing-Heating-Cooling-Contractors Association, in partnership with Green Plumbers USA, there is a training and certification program available for water and energy efficient technologies. With the way the environment is going green, this certification is a good idea for plumbers to consider. There is also the National Inspection Testing Certification(NITC) available to Journeymen Plumbers. The NITC also offers Journey and Master Plumber level certifications for plumbing codes and a Mastery certification exam for plumbers with over five years experience. There are fees involved, and they vary depending on the exam.
Had some scheduling issues recently, which is why 4 stars. Strongly suggest that they get rid of the policy (of which I was not aware) that if you are unable to answer your phone for the "courtesy call" that the plumber is on the way, your appointment gets cancelled. Along with the 4 hour window, this is not customer-friendly. But other than that, I've always been very happy with the actual work done and the overall efficiency of the company
Headquartered in Collin County Texas, Crown Plumbing Service is a family owned and operated business that remains committed to the old fashioned values of professionalism, dependability and affordability. We realize that regardless of the size of your repair, when you call for aplumber in Frisco or Prosper, TX– urgency, accuracy, and integrity are critical to the success of your repair.
The thicknesses of the water pipe and tube walls can vary. Pipe wall thickness is denoted by various schedules or for large bore polyethylene pipe in the UK by the Standard Dimension Ratio (SDR), defined as the ratio of the pipe diameter to its wall thickness. Pipe wall thickness increases with schedule, and is available in schedules 20, 40, 80, and higher in special cases. The schedule is largely determined by the operating pressure of the system, with higher pressures commanding greater thickness. Copper tubing is available in four wall thicknesses: type DWV (thinnest wall; only allowed as drain pipe per UPC), type 'M' (thin; typically only allowed as drain pipe by IPC code), type 'L' (thicker, standard duty for water lines and water service), and type 'K' (thickest, typically used underground between the main and the meter). Because piping and tubing are commodities, having a greater wall thickness implies higher initial cost. Thicker walled pipe generally implies greater durability and higher pressure tolerances.