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Diamond Plumbing & Drain Cleaning
About the business:
At Matawan's Diamond Plumbing & Drain Cleaning, we specialize in comprehensive plumbing services for local homeowners. We pride ourselves on our expertise in addressing a wide range of plumbing issues, from leaks and clogs to water heater repairs and installations. Our team is fully equipped to tackle any plumbing challenge that comes our way, ensuring your home's plumbing system remains efficient and reliable.
Located in Matawan, we are the go-to plumbing professionals for homes across the area. By choosing Diamond Plumbing & Drain Cleaning, you can rest assured that you're receiving top-notch plumbing services tailored to your unique needs. Trust us to deliver prompt, reliable solutions for all your plumbing concerns, leaving you with peace of mind and a properly functioning home.
Services:
All services 1-
Plumber
Book from $50In Matawan, we're Diamond Plumbing & Drain Cleaning - your reliable plumber. We specialize in promptly solving your home's plumbing …
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Hours of operation
- Mon – Fri
- Sat – Sun
- 8:00 AM – 5:00 PM
- Closed
Latest reviews
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Chris Bjorkeson8 June 2026
Joseph Mangrella, with Diamond Plumbing and Drain Cleaning, LLC, has very poor work quality, and customer service:
- The tub moved after being installed. Joe just told me to use some spray foam. This didn't help. I had to figure this out on my own using mortar and extra wood.
- Tub was not installer correctly, the waste pipe under the tub leaked, which another plumber needed to fix.
- Joe installed the posi valve and tub placement out of line, which forced me to buy a valve extension. A good plumber would never make this mistake.
- The shower head, posi valve, and spout was not aligned vertically, which does not look good.
- The copper pipe for the spout was loose and came out at an angle. This caused a problem installing the new spout properly,
with a big gap between the tile and spout.
Joe simply left the job without installing it properly, leaking behind when wall turning on the shower. When I asked him to come back and fix the bath spout, he wanted another $150, on top of the $950 I already paid him to install the new tub.
I had to hire another plumber to fix the problem.
I would never hire Joseph Mangrella, with Diamond Plumbing and Drain Cleaning, LLC. -
Jeffrey Montgomery8 June 2026
I have nothing bad to say about Dimond Plumbing and Joe. He has done several jobs for me and all have been perfect. His prices are fair, he is clean and very personable. I would recommend Joe for all your plumbing needs.
