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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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Commercial Heating Services
Nassau and Suffolk County, NY

Sewer Prevention Contracts Start $29/Month 

Heating Service Contracts Start $21/Month 

15% OFF All Service Repairs

Request Lorem Epsom

Hero Request Form

*We respond within the same business day.

Reliable Heating Solutions That Keep Your Business Running Smoothly

When your commercial heating system fails, it can disrupt your entire operation and affect your employees, customers, and bottom line. At Sullivan Plumbing & Heating Inc, we understand that your business depends on reliable climate control year-round. For over 20 years, we've provided Nassau and Suffolk County businesses with heating solutions they can count on.


As a locally and family owned company, we're committed to delivering exceptional service with the kind of personal attention that only comes from a business rooted in the community. We're licensed, insured, and certified by National Grid, equipped to handle everything from emergency repairs to complete system installations. We provide same-day estimates and work efficiently to minimize downtime for routine maintenance or major overhauls. Ready to ensure your heating system is operating at peak performance? Contact us to schedule your service today.

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
Commercial Boiler Installation
Upgrading to a new commercial boiler doesn't have to break your budget. We install quality systems from trusted brands like Burnham, LAARS, and Rheem, and we're currently offering $500 off new boiler installs with financing available to qualified businesses.
Commercial Boiler Service
Regular maintenance is essential to keeping your commercial boiler running efficiently and avoiding costly breakdowns. Our heating service contract starts at just $21 per month and includes preventative maintenance to ensure peak performance. We also offer emergency services when you need them most.
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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.