Sullivan Plumbing & Heating Inc provides water filtration, water heaters, boilers, radiant heating, drain cleaning, plumbing repairs, backflow testing, new construction and renovation, and sewers and water mains services to Massapequa, NY, and surrounding areas.
Explore offerings from Sullivan Plumbing & Heating Inc on 7 Park Lane in Massapequa, with popular services available at this location.
Sullivan Plumbing & Heating Inc - Services
10 items
services
Backflow Testing
Boilers
Commercial Plumbing and Heating Services
Drain Cleaning and Unclogging
New Construction and Renovations
Plumbing Repairs
Radiant Heating
Sewers and Water Mains
Water Filtration
Water Heaters
Reviews
5.0
148 reviews
5 stars
147
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1 star1
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Tom Mellis
1 day ago
5.0
We recently moved into our new home and needed a plumber for several tasks, most importantly replacing our 26-year-old gas water heater. We wanted a company that was prompt, responsive, courteous, able to spot issues we hadn’t considered, and fair on price. After contacting a few vendors, we chose Sullivan Plumbing and Heating — and it was a fantastic choice. From start to finish, Sean Sullivan and his team, both on-site and in the office, exceeded our expectations.
In addition to installing the new water heater, they performed a gas leak test, removed decommissioned pipes, installed a Moen Flo water monitoring device, added a backflow system for our irrigation, replaced bathroom faucets, installed a metal washing machine pan, and fixed the internal components in our toilets so the tanks filled properly.
The work took about two and a half days. Sean and his team were courteous and diligent, addressing concerns promptly and offering practical advice that helped us make good decisions along the way.
I highly recommend Sullivan Plumbing and Heating — they’re now our go-to team for all plumbing and heating needs.
DK
David Kommor
4 days ago
5.0
I couldn't be happier with my experience with Sullivan Plumbing & Heating. From my very first phone call, Sean and Debbie were an absolute pleasure to work with-friendly, knowledgeable, responsive, and genuinely committed to providing outstanding customer service.
The installation of my new water heater was flawless. The technicians arrived on time, were courteous, professional, and clearly took pride in their work. They treated my home with the utmost respect, kept the work area clean, and completed the installation efficiently while answering all of my questions.
In today's world, it's refreshing to find a company that values professionalism, quality workmanship, and exceptional customer service from start to finish. Sullivan Plumbing & Heating exceeded every expectation.
If you're looking for an honest, reliable, and highly skilled plumbing and heating company, look no further. Sullivan Plumbing & Heating is truly top-notch, and they've earned my highest recommendation.
KV
Kevin Venturino
Jun 19, 2026
5.0
By far the best experience I’ve ever had with any plumber. Sean and Debby are amazing and go out of their way to make sure whatever you need is solved. They truly go above and beyond. I will only use their services from now on!
DS
Douglas S
Jun 12, 2026
5.0
You know how you wish you just had a good Family Plumber - one you can rely on and trust implicitly. Well meet my new family plumber. Replaced my Gas Water heater for a fair price. Responded the same day to evaluate and quote the job - and was promptly out the next day with all equipment for the install. Seems like everyone from the owner Sean, the office staff, and tthe two youthful plumbers he sent - were just so pleasant to deal with. Installers donned little booty's to protect my floors and carpets - a real class act. So incredibly satisfied with the outcome of this project. Highty Recommended!
IG
Inessa Gerber
Jun 8, 2026
5.0
Superb Professional Service!
Had a big project with main sewage line replacement. The Sullivan Plumbing was recommended to us by our contractor who did prior work in our house. From the start to the end, they were professional, patient, super clean, and reasonably priced.
First call was with a very friendly receptionist who scheduled an initial assessment. Steve has arrived on time as scheduled, was very professional, took his time and explained everything. He did camera inspection and didn’t rush. Put all back in place and cleaned afterwards and worked with the company to provide outlined work order and very reasonable price.
Work started the next day, again right on the dot at 8am as scheduled. The team covered the areas for cleanliness and were very professional. We did hit couple of questionable areas of concern as with any large project (mostly due to us being anxious homeowners looking at major work happening). Sean, the owner, came literally 10 min later after we called the office with questions, and Steve who did initial inspection came right away as well to follow up with camera and plan of action. Steve and Sean assisted the other 2 workers (who were excellent in doing their work) to expedite things. However, most importantly, Sean and Steve elevated all our concerns and reassured us that all will be taken care of. Work completed on time and homeowners kept their sanity! Sean’s team cleaned all areas of construction material and dirt after replacing the pipe and redoing concreate. Super clean!
The responsiveness and true care for the client, coupled with professional and reasonably priced service, really makes Sullivan Plumbing stand out. Would definitely recommend!
Frequently Asked Questions About Sullivan Plumbing & Heating Inc
How often should I get my drains cleaned?
It's recommended to have your drains professionally cleaned every 1-2 years. However, if you notice slow drainage or unpleasant odors, it’s a good idea to schedule a cleaning sooner.
How can I prevent future drain clogs?
Avoid putting grease, large food scraps, or non-flushable items down the drain. Use drain covers and regularly clean them to catch debris.
What should I do if my water heater is leaking?
Turn off the power or gas supply and the water supply to the heater. Contact a professional plumber immediately to assess and fix the issue.
Can I install a water heater myself?
Installing a water heater involves handling electrical or gas connections and ensuring proper venting. It’s best to have a licensed plumber handle the installation for safety and code compliance. Contact Sean at Sullivan Plumbing & Heating Inc.
What are the benefits of a tankless water heater?
Tankless water heaters provide hot water on demand, are more energy-efficient, and take up less space compared to traditional tank models.
How often should I have my boiler serviced?
Annual servicing is recommended to ensure optimal performance and safety. Regular maintenance helps prevent unexpected breakdowns and extends the life of your boiler.
What are common signs that my boiler needs repair?
Signs include strange noises, inconsistent heating, leaking water, or the boiler not turning on. If you experience any of these issues, consult a professional by giving Sean a call today.
How long does a boiler typically last?
Boilers generally last between 15-20 years. If your boiler is nearing or past this age, it might be more cost-effective to consider a replacement.
What are the benefits of regular plumbing maintenance?
Regular maintenance helps detect potential problems early, extends the life of your plumbing system, and prevents costly emergency repairs. Call Sean for plumbing maintenance services.
How do I know if I need new plumbing installation?
If your pipes are old and frequently causing problems, or if you’re undertaking a major renovation, new plumbing installation may be necessary, give Sean a call today.
How often should I get my drains cleaned?
It's recommended to have your drains professionally cleaned every 1-2 years. Schedule sooner if you notice slow drainage or unpleasant odors.
What should I do if my water heater is leaking?
Turn off the power or gas and water supply immediately. Contact a professional plumber from Sullivan Plumbing & Heating Inc to fix the issue.
Can I install a water heater myself?
Water heater installation involves handling electrical or gas connections and proper venting. It's best to have a licensed plumber like Sean at Sullivan Plumbing & Heating Inc install it for safety and compliance.
What are the benefits of a tankless water heater?
Tankless water heaters provide hot water on demand, are more energy-efficient, and take up less space than traditional tank models.
How often should I have my boiler serviced?
Annual servicing is recommended to ensure performance and safety, prevent breakdowns, and extend your boiler's life.
What payment options are accepted at Sullivan Plumbing & Heating Inc?
They accept American Express, Cash, Check, Discover, MasterCard, and Visa.
What are the business hours for Sullivan Plumbing & Heating Inc?
They are open 24 hours a day, 7 days a week, with emergency service available.
Where is Sullivan Plumbing & Heating Inc located?
They are located at 7 Park Lane, Massapequa, NY 11758.
What services does Sullivan Plumbing & Heating Inc provide?
They offer water filtration, water heaters, boilers, radiant heating, drain cleaning, plumbing repairs, backflow testing, new construction and renovation, and sewers and water mains services.
What nearby places can I visit before or after my appointment at Sullivan Plumbing & Heating Inc?
You can visit nearby spots like Villaggio for Italian pizza, Blossoms Nail Spa or Mermaid Nail and Spa for beauty treatments, or Big Daddy's for barbecue. These nearby places offer great dining and relaxation options in Massapequa.
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