John Duffy Energy Services

Business Details

Emergency

services

Trusted HVAC and Energy Services in Northern New Jersey

John Duffy Energy Services has been a family-owned and operated business since 1891, serving residential and commercial clients across Northern and Central New Jersey. Our expertise spans HVAC repair, replacement, and maintenance, commercial gas solutions, and motor fuels distribution. With over 130 years of experience, we prioritize a people-first attitude and customer-driven approach, ensuring reliable service and high-quality products. Our team of trained technicians delivers 24/7 emergency support, backed by industry expertise and a commitment to innovation. We specialize in heating oil delivery, fleet fueling, fuel management systems, and tank protection plans, tailored to meet diverse client needs.

Our legacy of trust is built on four generations of family leadership, emphasizing transparency, accountability, and community service. From HVAC systems to commercial fuel distribution, we combine historical knowledge with modern solutions to address evolving energy demands. Customer satisfaction remains our highest priority, reflected in our personalized service and long-standing relationships with clients in Newark, Elizabeth, Jersey City, and surrounding areas. Our mission is to provide dependable, efficient, and forward-thinking energy services that enhance comfort and operational success for every client.

Services

HVAC Repair Heating Oil Delivery Commercial Gas Services Fleet Fueling Fuel Tank Loans Emergency Services System Installation Thermostat Services Fuel Management Systems Maintenance Plans

Highlights and features

We have been family-owned and operated since 1891 with 130+ years of industry experience.
Our team provides 24/7 emergency HVAC and fuel services for urgent needs.
We offer comprehensive solutions including installation, maintenance, and fuel management systems.
All technicians are fully trained, licensed, and experienced in diverse HVAC systems.
We serve residential and commercial clients across 10+ towns in Northern and Central New Jersey.

What people say

Very prompt, friendly Highly recommend Treasure these testimonials Peerless service 10-year loyalty

Website

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Services

HVAC Repair

We provide expert HVAC repair services for residential and commercial properties, addressing heating, ventilation, and air conditioning issues. Our licensed technicians ensure efficient system performance, minimizing downtime and energy waste. With 24/7 emergency availability, we resolve urgent heating and cooling problems promptly.

Heating Oil Delivery

Our heating oil delivery service ensures reliable fuel supply for homes and businesses. We offer price protection plans, easy payment options, and tank monitoring to prevent shortages. With a focus on quality and environmental standards, we deliver efficient heating solutions across Northern New Jersey.

Commercial Gas Services

We install and maintain commercial gas systems, including natural gas connections and heating oil solutions. Our services ensure optimal indoor climate control for businesses, with expert troubleshooting and 24/7 emergency support to minimize operational disruptions.

Fleet Fueling

Our fleet fueling solutions include on-site delivery, bulk storage, and key/card-driven management systems. Designed for businesses with vehicle fleets, these services reduce downtime and streamline fuel logistics with customizable storage and monitoring options.

Emergency Services

We offer around-the-clock emergency HVAC and fuel delivery services for urgent residential and commercial needs. Our rapid response team ensures critical systems remain operational, with same-day repairs and fuel replenishment to prevent service interruptions.

People

Ted Duffy

President

Ted Duffy leads the fourth generation of family ownership, continuing the company's legacy of customer-focused energy solutions since 1891.

Harry Simone

Vice President

Harry Simone oversees operations with decades of experience in HVAC systems and commercial fuel distribution, ensuring service excellence.

Andy Moskal

Service Manager

Andy Moskal manages technical teams, ensuring prompt and professional HVAC repairs and installations for residential and business clients.

Sammy Riboldi

HVAC Sales Manager

Sammy Riboldi specializes in HVAC sales, providing tailored heating and cooling solutions to meet diverse residential and commercial needs.

Questions

What areas do you serve?

We serve Newark, Elizabeth, Jersey City, Edison, East Orange, and surrounding towns in Essex, Union, Middlesex, Morris, and Hudson counties, NJ.

Do you offer emergency HVAC services?

Yes, we provide 24/7 emergency HVAC repair and fuel delivery services for urgent residential and commercial needs.

How long has your company been in business?

John Duffy Energy Services has been family-owned and operating since 1891, with over 130 years of industry experience.

What payment options are available?

We offer easy payment plans for heating oil delivery and fuel services to accommodate residential and business customers.

Do you provide commercial fuel management systems?

Yes, we offer technologically advanced fleet fuel management solutions and on-site fuel storage systems for businesses.

Reviews (6)

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Eli Chase

Apr 28, 2021 Report

These guys are the best in the business and the best contractors I have ever worked with. They are very personable, get the job done quickly for the amount they quote you, and are there for you if any issues arise. I would credit the success of the company to Gary and Andy, or Batman and Robin which better describes them! - they take the stress out of the business and make the job a pleasure from beginning to end, not to mention the professionalism and experience they bring to your project. The crew, with Gary and Andy at the top and Mario heading the supporting cast are proof that business can be fun!

Linda DeBisco

Mar 18, 2021 Report

John Duffy truck backed down our driveway when it was a sheet of ice got stuck told them several times to stop trying to go back up our driveway the driver was indignant & didn't listen the truck tore up our driveway & when we talked to the supervisor turned everything around & blamed us! We are Done with them! We had been a customer w them for almost 31 years this is how we are treated!

Kurt L.

Jan 12, 2021 Report

Just completed an oil to gas conversion in Montclair. These guys are great. Do WHAT they promise, WHEN they promise. Clean and very conscientious. Stayed late to get the job done. Just awesome. NOTE: they will remove and dispose of an above ground oil tank. Everyone else we contacted told us that we'd need to contract for that separately.

Salma Shaikh

Dec 31, 2020 Report

Hi- I used Duffy twice this year. Once for my Boiler maintenance and today for my baseboard heater. Awesome Company Awesome job! Their technicians are highly experienced. I recommend to use Duffy! I give them 5 Stars!

Jess P.

Mar 21, 2019 Report

Less than 1 star! This company is horrible! They were hired by our builder and when I contacted them for a problem we were having they sent a tech who couldn't exactly figure out the problem. We were told we would hear back from someone but never did. I called to follow up multiple times with Andy, the service manager, but he never returned my calls. I got their VP of Ops, Ted involved and he send Andy to our house to diagnose the issue. We came up with a plan of action and have been waiting for 2 weeks to hear back from them with their availability to do the work. Extremely poor service - buyer beware!

Christopher Lorenzo

Feb 14, 2018 Report

A person by the name of pricilla picked the line. Pricilla asked questions regarding the services I needed but was not sure if they service my area. So she transfer my call to a person named Andy. I introduce myself to Andy and I asked him if they service my area. Andy's replied, "is the area dangerous." wow, delicate to say the least and a misrepresentation given that their company has roots over 100 years in the city of Newark.

He then said he was being sarcastic because I asked if they service the area. This is not professional and boderline offensive. I take no pleasure in joking around ( especially when some poor families are suffering) and if the company is concerned with servicing an area, the least they can say is, no we don't service the area.