
William J. Guarini Inc.: Honest, reliable plumbing in Jersey City.
William J. Guarini Inc. is a Jersey City plumber serving 430 Danforth Ave and the surrounding area. Customers praise fair, transparent pricing and honest, straightforward communication. The team handles plumbing and sewer repairs, hot water heater installs, and related needs with professionalism, respect, and cleanup after work. Not the cheapest, but consistently reliable, with responsive service and follow-up.
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Professional excavation and repair of broken or leaking sewer pipes with fair pricing and minimal disruption.
Expert repair and replacement of leaking water service lines, handled by skilled teams with efficient timelines.
Installation of new water heaters, including compliance with local codes and cleanup after completion.
Quick response to urgent plumbing issues with reliable service and clear communication.
Ongoing plumbing and heating services to prevent issues and ensure system longevity.
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Overall rating
J. T.
I used Guarini for the repair of a leaking water service line. This is not an average plumbing job. It's a minimum 8 hour job, with a team of four or five people. I chose them because they got recommended by several other plumbers I spoke with. And they did a great job. Price was fair, more affordable than two other quotes I got. Their people are very professional and pleasant to work with.
Ankur Patel
I found Guarini Plumbing after getting an absurd quote from Roto-Rooter for a broken sewer pipe. Guarini was far more affordable and a huge relief to work with. It was great to deal with real people who were honest and straightforward the entire time. The job took just slightly longer than estimated, and they did not overcharge for the extra time… something that’s rare in plumbing work. Huge shout-out to Rachel, who was helpful and communicative from the first call through completion, even around the holidays. The crew doing the excavation and pipe work was professional, respectful, and genuinely considerate. They even delayed towing a car parked in a blocked-off area until it was absolutely necessary, which says a lot about how they operate. Excellent plumbing and sewer repair experience. I’ll be using Guarini for all future plumbing and heating needs and highly recommend them to anyone in the area.
Paul Clark
Reliable and professional. This was my first time dealing with Guarini plumbing. They were quick to respond to my plumbing problem. The plumber they sent out, Dominic, did an excellent job. Very good people to deal with.
Angus Vail
This company and the plumbers they use are great. Always reliable, and will make sure things are done right. If there's ever an issue with their work, they will come back and make sure things are taken care of. They are not the cheapest plumbers, but they are reliable, and do good work. I would not use anyone else.
Israel From
Received a new hot water heater through PSEG replacement program. Plumbers from William J Guarini showed up on time and explained everything. I needed an expansion valve due to high water pressure and they installed that as well. They took the time to cover my steps and cleaned up when finished. I am very satisfied with the job.