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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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Water Heater Services
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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*We respond within the same business day.

Reliable Hot Water Solutions When You Need Them Most

When your water heater fails, waiting isn't an option. Sullivan Plumbing & Heating Inc brings over 20 years of experience to every water heater service call in Nassau and Suffolk County, NY. As a locally and family-owned business since 2018, we've built our reputation on dependable service and customer satisfaction.


From new water heater installations to routine maintenance and emergency repairs, our licensed and insured team is here to help. We work with trusted brands like A.O. Smith, Bradford White, and Rheem to provide quality equipment backed by a one-year warranty on parts and labor. New customers save 10% on any service, and we offer financing options to make your project affordable. Ready to restore your hot water? Contact us for same-day estimates.

Sullivan Plumbing & Heating Inc

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Why Choose Us

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Licensed and Insured

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Heating Service Contracts Start $21/Month

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Top-Notch Services

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We Stand Behind Our Work, We Provide a 1-Year Parts and Labor Warranty

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Emergency Services Available

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Licensed and Insured

Why Choose Us

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Licensed and Insured

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Heating Service Contracts Start $21/Month
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Top-Notch Services

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We Stand Behind Our Work, We Provide a 1-Year Parts and Labor Warranty

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Emergency Services Available
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Licensed and Insured
Tankless Water Heater Installation
Switching to a tankless water heater means endless hot water and lower energy bills for your Nassau and Suffolk County home. Our certified installers will help you select the right system and handle the installation process from start to finish.
Tankless Water Heater Maintenance
Regular maintenance keeps your tankless system running at peak performance and extends its lifespan. We provide preventative care that includes flushing, inspection, and tune-ups to help you avoid costly breakdowns.
Tankless Water Heater Repair
When your tankless water heater isn't performing correctly, our experienced technicians quickly diagnose and fix the issue. We handle all major brands and offer emergency services when you need immediate help.
Water Heater Installation
From traditional tank models to high-efficiency systems, we'll guide you through selecting and installing the perfect water heater for your needs. As certified installers for industry-leading brands, we back every installation with our warranty.
Water Heater Repair
No hot water or strange noises coming from your tank? Our technicians respond quickly to diagnose problems and provide effective repairs that restore your comfort and help prevent future issues.
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Here's what our satisfied customers are saying...

At Sullivan Plumbing & Heating Inc, we take pride in providing exceptional plumbing and heating to our customers. We would be grateful if you could share your thoughts about our business with others. Your feedback helps us improve and helps others make informed decisions. Please take a moment to leave a review of Sullivan Plumbing & Heating Inc and let others know what you think.