DSA Plumbing employs licensed plumbers and tradesman all of which work directly for DSA Plumbing. This allows us to have greater control over the quality and standard of work that is produced. DSA Plumbing has a full time estimating and accounts department. We have staff that are licensed plumbers, gasfitters, drainers, thermostatic mixing valves, backflow prevention installers, confined space certified, over head electrical awareness trained.