Your Trusted Energy Partner

Your Trusted Energy Partner

Your Trusted Energy Partner

Your Trusted Energy Partner

Your Trusted Partner in Suffolk County

Welcome to Green Seal Oil Tank Service, your premier provider of comprehensive oil tank solutions in Suffolk County. We are dedicated to delivering excellence in oil tank installation, maintenance, and environmental compliance, ensuring the safety and satisfaction of our valued customers.

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GreenSeal can install many types of heating and cooling equipment. For more than 25 years we have been installing equipment made by several different manufacturers. Our customers benefit from GreenSeal’s history and data of the equipment we install and even from the ones we don’t. There are applications for certain equipment. Not all equipment is for every customer’s installation. When you’re in need of new equipment let GreenSeal’s experienced team of professionals help guide you.

Let's make something great

Bring to the table win-win survival strategies to ensure proactive domination. At the end of the day, going forward, a new normal that has evolved from generation X is on the runway heading towards a streamlined cloud solution for your construction work.

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Hotel Berg
Hotel California
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We are the home oil tank experts of Suffolk County, NY

Our company provides a wide range of home oil tank services including LI Oil Tank Installation, Oil Tank Removal and Oil Tank Abandonment. We offer a wide selection of oil tank choices and can handle any project big or small. We love having satisfied customers and look forward to showing you the GreenSeal difference!

Excellence in every build

Capitalize on low hanging fruit to identify a ballpark value added activity to beta test. Override the digital divide with additional clickthroughs from DevOps.

World awards

Taking seamless key performance indicators.


Project success

Engage fully tested process improvement platforms.



Leverage other resource leveling convergence.


Worldwide clients

Globally network focused material products.


Air Conditioner Replacement & Installation

From initial assessment to meticulous installation, our team ensures your oil tank meets the highest standards of quality and safety. Whether you’re upgrading or replacing your tank, we’re here to guide you through the process with expertise and precision.

Boiler Replacement & Installation

Trust our skilled technicians to conduct thorough inspections, perform routine maintenance, and address any repairs promptly to keep your oil tank operating efficiently and safely.

Water Heater Replacement & Installation

Preserve the integrity of your oil tank with our professional cleaning and pumping services. We utilize advanced techniques to remove sludge, sediment, and contaminants, promoting optimal performance and longevity.

Oil Tank Replacement & Installation

We are committed to environmental stewardship, adhering to all regulatory standards and guidelines to ensure responsible handling and disposal of oil and waste materials. Rest assured, we prioritize sustainability and environmental protection in every aspect of our operations.

Why Customers Trust GreenSeal Installations

Expertise and Experience

With years of industry experience, our team possesses the knowledge and skills necessary to deliver superior oil tank services tailored to your specific needs.

Customer Satisfaction

We prioritize customer satisfaction above all else, striving to exceed expectations by providing personalized solutions and exceptional support every step of the way.

Reliability and Dependability

Count on us for reliable service and prompt response times. We understand the importance of a functioning oil tank system, and we’re here to ensure your needs are met with professionalism and efficiency.

Commitment to Excellence

At Green Seal Oil Tank Service, we are dedicated to excellence in everything we do. From our meticulous workmanship to our unwavering dedication to customer service, we are committed to delivering superior results you can trust.

Turning your vision into reality

Peter Wright

Founder & CEO

Jason Somerville

Senior Architect

Joanna Gates

Senior Architect


(631) 928–1500


Get in Touch

Ready to experience the Green Seal Oil Tank Service difference? Contact us today to learn more about our comprehensive range of oil tank services and schedule a consultation. Let us partner with you to ensure the safety, efficiency, and longevity of your oil tank system. Your satisfaction is our priority, and we look forward to serving you in Suffolk County and beyond.


    Konstrakt Location

    2801 S 43rd St. Franklin, Milwaukee
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