Brand Certified
ZSL Plumbing
4.9(194 reviews)
Certified by ZSL Plumbing • Jul 05, 2026
Business Details
856 Johnson Ave, Ronkonkoma, NY
11779, United States
Certified by ZSL Plumbing • Jul 05, 2026
(631) 314-6254
Certified by ZSL Plumbing • Jul 05, 2026
https://zslplumbingny.hibuwebsites.com/
Certified by ZSL Plumbing • Jul 05, 2026
About
Certified by ZSL Plumbing • Jul 05, 2026
Plumber
ZSL Plumbing offers a full range of residential and commercial services, including plumbing for new construction and remodeling, emergency repairs, gas line installation, heating solutions, septic and outdoor systems, water filtration, and water heater services throughout Suffolk and Nassau Counties, NY.
Details
- Credit cardAvailable
- Cash onlyNot available
Location
Certified by ZSL Plumbing • Jul 05, 2026
Hours
Certified by ZSL Plumbing • Jul 05, 2026
Monday7:00 AM - 4:00 PM
Tuesday7:00 AM - 4:00 PM
Wednesday7:00 AM - 4:00 PM
Thursday7:00 AM - 4:00 PM
Friday7:00 AM - 4:00 PM
SaturdayClosed
SundayClosed
7/4/2026Closed
9/7/20267:00 AM - 4:00 PM
11/26/20267:00 AM - 4:00 PM
11/27/20267:00 AM - 4:00 PM
12/25/20267:00 AM - 4:00 PM
1/1/20277:00 AM - 4:00 PM
Products & Services
1 list · 64 items
Explore offerings from ZSL Plumbing on 856 Johnson Ave in Ronkonkoma, with popular services available at this location.
Reviews
4.9
194 reviews
5 stars
191
4 stars0
3 stars0
2 stars0
1 star
3
- VAVivian Acevedo1 day ago5.0I have nothing wrong to say, very professional, they know what they’re doing n left everything very clear, super happy with their work.
- KEKen EJun 25, 20265.0Rob came in and got started before I arrived home. His work was meticulously done and his cleanup made me wonder if he was really there. The only way I knew he was there was due to the work; a perfectly installed faucet and plumbing assembly in addition to a leveled and connected gas range. No more eggs sliding to one side of the pan. I was impressed that Rob made sure there was no gas leak once he connected the natural gas line and then additionally made sure all the burners worked. Thanks Rob! I will be recommending ZSL and will proudly wear that 250th America Anniversary ZSL t-shirt!
- FLFrancis lovenceJun 19, 20265.0Have used ZSL plumbing before and will continue to in the future, great work as always.
- NNNatashaJun 17, 20265.0I recently had a new boiler and water heater installed by ZSL Plumbing, and I couldn't be happier with the experience. My old boiler was the original boiler that came with the house and had definitely seen better days. Thanks to ZSL Plumbing, I now have a brand-new, shiny boiler that not only looks amazing but gives me peace of mind knowing my heating system is up to date and running efficiently. From start to finish, the team was professional, knowledgeable, and responsive. They took the time to explain everything, answered all of my questions, and made sure the installation was done correctly. The quality of their work is outstanding, and the entire process was smooth and stress-free. I highly recommend ZSL Plumbing to anyone looking for reliable, honest, and skilled professionals for plumbing and heating work.
- SSSeanJun 10, 20265.0Rob and Jayden showed up early. They were neat and clean with their work and finished in a timely manner
Frequently Asked Questions About ZSL Plumbing
When should I be shutting off my outdoor water?
It is recommended to shut off your outdoor water on October 31st (Halloween) and reactivate it on Easter Sunday. This practice helps protect your outdoor plumbing from potential freezing damage during winter months.
High Efficiency boiler vs Standard Boilers?
High efficiency boilers are a modern innovation that require annual maintenance. Standard boilers, on the other hand, are well-established and do not necessitate yearly servicing.
Why do I need water filtration?
Water filtration is essential because tap water often contains impurities such as iron, sand, copper, and other potentially harmful substances. Installing a filtration system not only protects your family's health but also prevents unnecessary plumbing repairs caused by these contaminants.
Are you licensed and insured?
Yes, our company is fully licensed and insured to provide plumbing services in Suffolk County, New York.
Do you offer emergency services?
Yes, we provide 24/7 emergency plumbing services to address urgent issues at any time.
Is it better to get a tank or tankless water heater?
The choice between tank and tankless water heaters depends on your specific needs. Tank water heaters have a lower initial cost but may result in higher energy bills due to constant water heating. Tankless models are more energy-efficient but have a higher upfront cost and may not be suitable for homes with low water pressure.
Why should you use ZSL Plumbing?
ZSL Plumbing is committed to delivering exceptional service with integrity. We strive to offer the highest quality workmanship at competitive prices, ensuring the best value for our customers.
What is this green color thing growing on my copper piping?
The green substance on your copper pipes is likely due to galvanic corrosion. This occurs when dissimilar metals, such as copper and steel, come into contact. If you observe this issue, it's crucial to contact us promptly for professional assessment and resolution.
What are the signs of a slab leak?
Slab leaks occur in pipes beneath a home's concrete foundation. Signs include unexplained increases in water bills, cracks in floors or foundation, warm spots on the floor, and mold growth. If you notice these symptoms, professional inspection is recommended.
Is it better to get a tank or a tankless water heater?
Tank water heaters generally have a lower initial cost compared to tankless models. However, the best choice depends on factors such as your household's hot water needs, available space, and long-term energy efficiency considerations.
Brand Certified Facts from ZSL Plumbing
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Certified July 05, 2026Yext Knowledge Graph
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