Plumber interview questions and answers

Behavioral interview questions for plumbers
  • Tell me about a time when you offered excellent customer service as a plumber.
  • What safety precautions do you take on the job? …
  • What was the hardest plumbing job you’ve ever had to tackle? …
  • Tell me about a time you had to work for a difficult customer.

Top 7 Plumbing Job Interview Tips | Plumbing Career | The Expert Plumber

Are you familiar with the various types of chemical drain cleaners used in plumbing?


Chemical drain cleaners are often needed to unclog stubborn blockages, and they’re often a great solution. With so many options available, it’s important your plumbing candidate is able to identify the most viable solution for any situation they face. Be on the lookout for a candidate familiar with caustic, oxidizing and acid drain cleaners and the appropriate application of each type. What to look for in an answer:

  • Confident identification of each type of chemical drain cleaner
  • Ability to provide examples of use
  • Quick to answer
  • “I use caustic drain cleaners to apply the heat necessary to dissolve clogs, but the higher acidic concentration of acid cleaners solves more complex drainage issues.”


    What are the most important steps involved in unclogging blocked pipes?


    Blocked pipes are a very common cause of plumbing issues, so it’s necessary for your applicant to be familiar with the most effective solutions. This involves the ability to evaluate each unique circumstance, so not all solutions are best for everyone. Failure to answer this question with confidence could be a sign you have the wrong candidate for the job. The right plumber will be quick to point out both the easy and the hard methods and when to use each. What to look for in an answer:

  • No hesitation in answering the question
  • Familiarity of more than one solution
  • Usage of correct terminology when referring to solutions
  • “It’s best to work smarter than harder, so first pour hot water down the drain. If this doesn’t work, I would move on to more advanced solutions.”


    plumber interview questions

    Requirements will vary depending on whether you’re hiring for an apprentice, a journeyman or a master plumber. Apprentices should be motivated and able to follow instructions to the letter. With other candidates, ask questions to determine their level of technical expertise and ability to solve problems. Master plumbers also need leadership skills and knowledge of regulations and processes (e.g. acquiring permits or building codes.)

    Role-specific questions should be tailored according to the industry you operate in. For example, a plumber working in an industrial setting may need a different skillset than a service plumber. Additionally, plumbers employed by construction companies will need specialized knowledge such as installing complete hydraulic systems from scratch. The following plumber interview questions provide examples of how to assess candidates effectively.

    3. How do you deal with impatient and irritable clients?

    This illustrates the candidates interpersonal skills.

    There’s no software to download or meeting links for you to manage. Here’s how it works. Step 1

    Reach the worlds largest pool of job seekers when you post on Indeed. As candidates apply, you can connect with them on the platform. Step 2

    Our virtual interview experience is the default when you schedule time with your candidate. Step 3

    When the candidate accepts your interview invite, youll both get an email with a link to your video conference. Open the link to test your connection, and get started. Its that easy.

  • What are the most important steps involved in unclogging blocked pipes? See answer
  • What plumbing tools are essential? Which ones do you bring to every job? See answer
  • Are you familiar with the various health hazards of working in the plumbing industry? See answer
  • What are some ways customers could avoid bathroom plumbing issues in the future? See answer
  • How would you inform a client who has called you for services on a clogged pipe of their options? See answer
  • Are you familiar with various types of chemical drain cleaners used in plumbing?
  • What experience do you have with the installation of water-based heating units?
  • Where do you start when installing an entirely new plumbing system for a floor in an office building?
  • What process would you use to patch a copper water leak in an open area of a business during hours of operation?
  • Can you explain the purpose of a washout in a water supply network?
  • What experience have you had with large underground installations?
  • What strategies do you use to help an unhappy customer with the work you have done?
  • What aspects do you take into consideration when providing a customer with a quote on work that needs to be done?
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