Avis Plumbing in San Bernardino, CA with Reviews - YP.com
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By: Erwan R.
National Plumbing Contractors
DON'T EVEN bother to call this company for services.... Worst customer service. A couple of no show to the appointment that I got from them. Until now the things that needed to be fixed is still unfixed......It's been 2 months.
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By: Debi T.
National Plumbing Contractors
National Plumbing is the worst plumbing company in Southern California they're located in San Bernardino if you don't have to use them I wouldn't recommend it they're unreliable unprofessional they don't show up when they're supposed to they don't call when they say and it takes more than 3 or 4 or 5 weeks to get one simple job done and we still don't have the job done Sergio is there supervisor 1 Cortez is the owner of the company and I would never deal with these people ever again Robert came out he's one of their workers took a few photos and said will write up a report instead of fixing the problem
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By: Teacherwear T.
National Plumbing Contractors
Absolute WORST contractor experience I have ever had as a homeowner. Plumbers, when they would actually show up, would show two to three hours after four hour window. On two occasions, plumber was no show. Extremely unprofessional.
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By: Adela T.
National Plumbing Contractors
The worst experience with this company. Did not keep to schedule, over charged, blown off. Now that they know I have a problem with their service l am treated worst and have even been put at the bottom of the list for the second day in a row. Not recommend!!
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By: Nadine L.
National Plumbing Contractors
Scheduling and follow-through was terrible. I took forever to schedule my call, and then I was scheduled several times and no one showed up. The morning/afternoon receptionist was also very unpleasant, bordering on rude.
Tips & Advices
  • Are you licensed and registered?
  • Are you insured and bonded?
  • How many years have you been in business?
  • What, if any, professional associations do you belong to?
  • May I have a list of references?
  • Do you offer a written warranty for your work?
  • Will I need a permit for this work?
It is important to have a written warranty for any work or repairs done to the plumbing in your house, especially if it is a major repair. Look for a professional  who is willing to  stand by his or her work.
Before you hire a plumber, contact their past customers if you're able to. These people can be a wealth of information if you ask them the right questions. Pose the following queries to these former patrons when you get the chance:
  • Were you pleased with the work done?
  • Was the project completed on time?
  • Did the plumber give you a written warranty and guarantee his or her work?
  • Were there any unexpected costs that arose?
  • Would you hire this plumber again? If not, why?
A permit provides added assurance that the work is done correctly. Having this in place means an inspector will check the work your contractor or plumber does to ensure he or she did the job correctly. If you plan on putting your house or commercial building on the market, a real estate agent and prospective buyers will want to check any large work you did to make sure it was done properly.
A trustworthy plumber will have both commercial liability insurance as well as be bonded. The insurance and the bond protects the plumber from paying for any damages made to your house out of pocket. Having professionals that carry both of these policies can protect all of you from any mishaps that could occur while they work on your building.

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