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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 Plumbing 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

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*We respond within the same business day.

Commercial Plumbing Solutions Built for Your Business

Sullivan Plumbing & Heating Inc delivers comprehensive commercial plumbing services designed to keep your business running efficiently. As a locally and family-owned company with over 20 years of experience, we understand the unique demands of commercial properties throughout Nassau and Suffolk County, NY.


From routine maintenance to emergency repairs, our licensed and insured technicians provide same-day estimates and reliable solutions backed by a one-year warranty on parts and labor. Need drain cleaning, water heater installation, or sewer line repair? We're here to serve your business. Ready to get started? Contact us 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 Backflow Testing
Protect your water supply with backflow testing services. As NYS certified backflow testers, we ensure your commercial property meets all regulatory requirements and maintains safe, contamination-free water for your operations.
Commercial Drain Cleaning
Clogged drains can disrupt your business operations and create unsanitary conditions. Our commercial drain cleaning services quickly restore proper flow, preventing costly downtime and keeping your facilities functional for employees and customers.
Commercial Gas Line Installation
Our National Grid certified technicians handle commercial gas line installations with precision and safety. We ensure your gas systems are properly installed and compliant with all codes, providing reliable energy solutions for restaurants, office buildings, and industrial facilities.
Commercial Plumbing Installation
Building a new facility or renovating an existing space? We provide complete commercial plumbing installation services. From fixtures and piping to complex system design, we deliver quality workmanship that meets the demands of your business.
Commercial Plumbing Repair
Plumbing issues demand immediate attention in commercial settings. Our emergency services ensure that leaks, breaks, and malfunctions are addressed quickly, minimizing disruption to your operations and preventing property damage.
Commercial Sewer Line Repair
Damaged sewer lines can create serious health hazards and operational problems. We offer commercial sewer line repair services that include video inspection technology to accurately diagnose issues and implement long-lasting solutions for your property.
Commercial Water Heater Installation
Reliable hot water is necessary for many commercial operations. We install commercial water heaters from trusted brands like A.O. Smith, Bradford White, and Rheem, ensuring your business has consistent hot water capacity matched to your specific needs.
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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.