Business Details
Emergency
services
Trusted HVAC Solutions and Heating Oil Services
Since 1889, we have built our reputation on delivering exceptional HVAC solutions and energy products to residents of Northwest New Jersey. Our certified technicians specialize in heating, ventilation, air conditioning, and refrigeration services, combining advanced technology with personalized care. We guarantee satisfaction through our Perfect Installation System, 24/7 emergency support, and innovative offerings like Ultrablend Heating Oil. With over 130 years of local expertise, we prioritize customer needs through tailored energy programs and community engagement.Our commitment to quality is reflected in our ISO-certified manufacturing partnerships and industry-leading warranties. We maintain transparency through our Comfort Line newsletter and direct communication channels. Our team's extensive training ensures every installation and repair meets rigorous standards. We serve Sussex, Northern Morris, and Northern Warren Counties with reliable service and technical excellence. Our legacy of trust is built on generations of satisfied customers and continuous adaptation to industry advancements.
Services
HVAC Installation
Heating Oil Delivery
Radiant Heat Systems
Solar Thermal Heating
Boiler Repair
Highlights and features
- We offer 130+ years of combined HVAC expertise and local market knowledge
- Our team includes certified New Jersey Master HVACR Technicians
- We provide 24/7 emergency service with rapid response times
- Our Perfect Installation System ensures precise equipment sizing and quality
- We offer worry-free price protection programs for heating oil customers
Associations and certifications
- ISO 9000
What people say
Courteous service technician
Professionalism
Exceeded expectations
Responsive to needs
Positive attitude
Services
HVAC Installation
Our certified technicians install high-efficiency heating, ventilation, and air conditioning systems tailored to your home's specific needs. We use the Perfect Installation System to ensure proper sizing and optimal performance. Our services include equipment selection, permitting, and code-compliant installation for lasting comfort.
Radiant Heat Systems
We distribute and install Roth radiant floor heating systems that provide even, efficient warmth through hydronic tubing. This European technology offers energy savings of 20-40% compared to traditional systems. Our installations include complete system design and integration with existing heating infrastructure.
Heating Oil Delivery
Our Ultrablend Heating Oil combines advanced additives for cleaner burning and system protection. We serve residential customers with reliable delivery and optional price protection programs. Our double-wall safety tanks ensure secure, environmentally responsible storage for all heating needs.
Solar Thermal Heating
We offer solar domestic hot water systems that reduce annual energy costs by two-thirds. Our installations include Roth solar panels, storage tanks, and circulation systems with 10-year warranties. This renewable energy solution integrates with existing heating systems for year-round efficiency.
Boiler Repair
Our technicians service all major boiler brands including Buderus, Peerless, and Lochinvar models. We provide emergency repairs, annual maintenance, and replacement services. Our inventory includes Energy Star-rated condensing gas boilers and high-efficiency oil-fired units with extended warranties.
Questions
What HVAC services do you offer?
We install, maintain, and repair all types of heating, ventilation, air conditioning, and refrigeration systems including oil, gas, electric, and solar-powered equipment.
Do you provide emergency service?
Yes, we offer 24/7 emergency HVAC service for regular customers with rapid response times during all hours of the day.
What heating oil options are available?
We deliver Ultrablend Heating Oil with performance additives and offer price protection programs to prevent winter price spikes for residential customers.
Do you service older heating systems?
Yes, our technicians service all brands and models of heating equipment including older systems requiring specialized maintenance and repair.
What areas do you serve?
We serve Sussex County, Northern Morris County, and Northern Warren County including towns like Newton, Sparta, and Andover.
Reviews (7)
Jerry Head
Sep 19, 2021
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We got 4 quotes on a new heating system and they weren't the highest or lowest but we chose them for their knowledge. We were given 3 quotes on different systems with detail on differences in the systems, no pressure to choose one over another as with other companies. Clearly professional and very knowledgeable, we had full confidence in what they were going to do. Install day was great, very nice crew, all work areas were left very clean. We were given a detailed walkthrough of the system, they answered all questions we had. The company guarantees their work. Look no further if you need any type of heating or cooling systems work.
Ken Roberts
Sep 16, 2021
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I have been a customer of Hart & Iliff since 1973 when I moved to the County. In addition to normal oil delivery and yearly maintenance, they have always been there promptly during the times I needed emergency service no matter what the weather. Their technicians have always been knowledgeable and and professional and I have seen a few in my almost 50 years using the company. Hart and Iliff has my highest recommendation.
Mark J.
Jun 11, 2021
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I have been a customer since 2016. They maintain my furnace, air conditioning system, and provide me with home heating oil. I have also had repairs done on my furnace in the middle of the winter, with one call, the issue was fixed the right way. Everyone from the first phone call to the service visit are professional and kind. I would never think of going anywhere else. I highly recommend them for: quality of work, piece of mind, exceptional value, and consistent results.
Jennifer Balogh
Apr 24, 2021
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As a single mother buying a home, it is a relief to have businesses you can trust and rely on to be there. I have had 1/2 a dozen emergency visits for my old heating system, and not only were they to the rescue quickly {within an hour each time!} they were personable and knowledgeable and empathetic. The "girls" running the office and paperwork are equally professional, helpful and kind. Finally, I was able to speak at length to the owner when contemplating pulling and replacing my underground tank. I am in excellent hands, feels like family and will never leave Hart and Iliff.
Lois Verbeek
Feb 28, 2021
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I have been using Hart and Iliff for almost 40 years since I moved into my home in Byram Township in 1980. They deliver oil, maintain and clean my furnace annually and always are only a phone call away when I need repair. 15 years ago they installed two new Roth oil tanks in my basement. They are very dependable and reliable and I would never use any other oil company. Lois V.
Catherine Wille
Jan 27, 2021
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I have been using Hart and Iliff for the past 13 years. They have provided excellent service. Their field workers are extremely knowledgeable, personable and efficient. They have earned my trust over the past 13 years because they are so reliable, great communicators and are willing to work with you as a customer! I highly recommend this upstanding business!
Patricia Pruser
Jan 17, 2021
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Hart and Iliff has been our oil supplier for over 20 years and we couldn't be more satisfied with their professional service. They NEVER left us cold when the furnace needed repair, and they are on top of deliveries when a snow or ice storm is on the horizon. THANK-YOU very very much! Sincerely, Patricia Pruser Services: Cleaning, Heating system maintenance
