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.
Explore offerings from ZSL Plumbing on 856 Johnson Ave in Ronkonkoma, with popular services available at this location.
ZSL Plumbing - Services
64 items
services
Boilers
Boiler Installation
Boiler Repair and Maintenance
Commercial Plumbing
Backflow Prevention
Commercial Kitchen and Restroom Plumbing Installs
Grease Trap Installation
Healthcare Facility Plumbing
Hotels Plumbing Service
Multi-Unit Residential Plumbing
Restaurants and Food Service Plumbing
Retail and Shopping Center Plumbing
Storm Drains -Roof Drains Install and Repair
Construction and Remodeling
Integration with HVAC and Mechanical Systems
New Construction Plumbing
Plumbing Design and Planning
Emergency Plumbing Services
Burst Pipe Repair
Heating Emergency
Sewer Backup Solutions
Slab Leaks
Water Heater Emergency
Gas Line Services
Gas Line Installation
Gas Line Repair
Gas Line Testing
Oil to Gas Conversions
Heating
Baseboard Heating
Radiant Floor Heating
Radiator Installation and Repair
Plumbing Services
Bathroom Remodeling Plumbing
Dishwasher Installation and Repair
Drain Cleaning and Maintenance
Fixture Installation
Hose Spicket Installation and Repair
Kitchen Plumbing Service
Leak Detection and Repair
Pipe Installation and Replacement
Plumbing Inspections
Repiping Services
Residential Plumbing
Shower Installation and Repair
Sink Installation and Repair
Sump Pump Installation and Repair
Toilet Installation and Repair
Water Main Services and Installation
Septic and Outdoor Services
Outdoor Plumbing Repair
Sewer Line Cleaning
Sewer Line Repair
Water Filtration System
Lead Prevention Systems
Maintenance and Filter Replacement
Reverse Osmosis Systems
Whole-House Water Filtration
Water Heater Services
Energy-Efficient Upgrades
Tankless Water Heater Installation
Tankless Water Heater Repair
Water Heater Installation
Water Heater Repair
Reviews
4.9
224 reviews
5 stars
221
4 stars0
3 stars0
2 stars0
1 star3
DB
David Belkin
1 day ago
5.0
We are currently having our entire house reconstructed from top to bottom. The team that have been doing our house show hard work and dedication to the work they do. I had the great opportunity to meet Jonathan Joe Jayden and Kevin who not only do and excellent job but show you step by step on how thing will be done to give the customer a better understanding of how plumbing works. I look forward to working with them in the future. Highly recommended
AV
Angelica Viotto Vargas
6 days ago
5.0
This company is very reliable. They gave you a time schedule and they kept to it.
Joe and Jordan are excellent neat, clean and very social. I would highly recommend them.. I want to thank you guys for such a wonderful job.
CR
Cecille Rotundo
Oct 5, 2026
5.0
Thank you to Joe and Kevin for the excellent work fixing the leak under our toilet. They were professional, communicated clearly about what needed to be done, did a great job, and left everything clean and in order.
We also really appreciated the company’s fair pricing and, just as importantly, how friendly and honest Joe and Kevin were. It’s refreshing to find people who take pride in their work and genuinely care about doing things right.
We truly appreciate them both and would be happy to recommend your organization to anyone looking for reliable, professional, and trustworthy guys.
Thank you again!
TT
Tom
Oct 1, 2026
5.0
I had to replace a faulty check valve in my heating system and after doing some research online I found ZSL plumbing. Now this was my first time hiring ZSL plumbing so I was not sure what to expect. After Robert explained the options to fix the issue I had them do the repairs, and they did a nice job at a fair price. It’s nice to find a company that takes pride in their work and is very professional. I would recommend them if you needed plumbing work done in your home. If I have any plumbing issues in the future, I would definitely call on them again.
SB
Sharon Bunting
Sep 28, 2026
5.0
James was our service guy when we installed our upstairs and downstairs bathroom. James and his team did a great job for both installations and were very easy to work with.
I ended up requesting their services again when I had a water heating issue and a coil broke and flooded the basement. They came within an hour for an emergency issue. They unfortunate weren’t able to get the part they needed until the next business day but then came first thing that morning and completed everything. They were amazing and I would highly recommend them. John and James were also great with my two dogs, which is always a perk for me
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.
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Certified October 11, 2026Yext Knowledge Graph
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