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Sewer Prevention Contracts Start $29/Month 

Heating Service Contracts Start $21/Month 

15% OFF All Service Repairs

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Professional Water Heater Installation
Nassau and Suffolk County, NY

Sewer Prevention Contracts Start $29/Month 

Heating Service Contracts Start $21/Month 

15% OFF All Service Repairs

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Hero Request Form

Get Your Water Heater Installed Right the First Time

When you need a new water heater installed in Nassau and Suffolk County, NY, Sullivan Plumbing & Heating Inc has you covered. Our team works with trusted brands and delivers quality workmanship every time. We install: 

  • Rheem systems
  • Bradford White models
  • A.O. Smith units
  • LAARS equipment
  • Burnham heaters

 We provide same-day estimates and flexible financing options. Reach out to us today and get started.

Signs You Need a New Water Heater Installation
Your water heater works hard every day, but eventually it will need replacing. Knowing when it's time for a new installation can save you from unexpected cold showers and costly water damage. If you're experiencing any of these issues in Nassau and Suffolk County, NY, it's probably time for an upgrade:
  • Inconsistent water temperature
  • Strange noises or rumbling sounds
  • Rusty or discolored water
  • Leaks around the base
  • Your unit is over 10 years old
  • Rising energy bills

Our licensed and insured technicians can assess your situation and recommend the best solution for your home and budget before you're dealing with a complete breakdown.
Why Choose Sullivan Plumbing & Heating
Sullivan Plumbing & Heating has been serving local homeowners for over 20 years, and we're committed to doing the job right. As a locally and family-owned business since 2018, we treat every customer like a neighbor. Here's what sets us apart:
  • Estimates provided same day
  • One-year warranty on all parts and labor
  • Licensed, insured, and National Grid certified
  • Emergency services when you need them most
  • Bilingual team (English and Spanish)
  • Special offers including 10% off for new customers and $500 off new boiler installs
  • Financing available to fit your budget

We're also proud sponsors of the Massapequa International Little League and hold certifications including Naveen Installer, Task 87, and NYS Certified Backflow Tester. You'll get reliable service backed by real experience and training.
Contact Us

Ready for hot water you can count on? Sullivan Plumbing & Heating makes water heater installation straightforward and stress-free. We'll help you choose the right system, handle the installation professionally, and make sure everything is working perfectly before we leave. Plus, with our preventative maintenance plans starting at just $21/month for heating service, you can keep your new system running efficiently for years to come.  Contact us today for your same-day estimate and get your home comfortable again.

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