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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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Heating System Solutions
Nassau County 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.

Trusted Boiler and Radiator Services When You Need Them Most

When your heating system stops working properly, you need a solution fast. Sullivan Plumbing & Heating Inc has been serving homeowners throughout Nassau and Suffolk County, NY since 2018, delivering reliable installation and repair services for boilers and radiators. As a locally and family-owned business, we understand the importance of keeping your home comfortable year-round.


Our licensed and insured technicians bring over 20 years of combined experience to every job. We're certified by National Grid, Naveen, and LAARS, and we work with trusted brands like Burnham, Bradford White, and Rheem. From emergency repairs to complete system replacements, we handle each project with care and precision. New customers save 10% on any service, and you can take $500 off new boiler installations. Ready to restore warmth to your home? Contact us today 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
Boiler Installation
Upgrading to a new boiler improves efficiency and lowers your energy bills. Our team installs dependable systems from manufacturers like A.O. Smith, Burnham, and LAARS, backed by a one-year warranty on parts and labor.
Boiler Repair
From strange noises to inconsistent heating, we diagnose and fix all boiler issues quickly. With emergency services available and bilingual support in English and Spanish, help is always within reach throughout Nassau and Suffolk County, NY.
Furnace Installation
We install high-performance furnaces that keep your home warm while reducing energy costs. Financing options make it easier to invest in the comfort and efficiency your family deserves.
Furnace Repair
When your furnace breaks down, our experienced technicians respond quickly to restore heat to your home. We handle everything from minor fixes to major component replacements with reliable service you can count on.
Radiator Installation
Adding radiators to a new space or replacing outdated units requires proper installation for optimal heat distribution. Our team works efficiently to minimize disruption to your daily routine.
Radiator Repair
Leaking or cold radiators waste energy and leave rooms uncomfortable. We quickly identify problems and provide lasting repairs that restore full functionality to your heating system.
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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.