About Us
Hart & Iliff was founded in 1889 by two brothers-in-law, Nathan H. Hart and Louis S. Iliff. The company initially sold feed and grain, coal and building materials. Eventually Hart & Iliff branched out into selling heating oil and installing/servicing heating and air conditioning equipment. After a number of years operating as partners, Louis Iliff bought out Nathan Hart. The business was run by the Iliff family continually until 1971 when it was purchased by Albert & Florence Brand.
Our Personal Guarantee
For over 130 years we have built our business by consistently doing what is right for our customers. We guarantee your satisfaction with all of our products and services.
Who We Serve
Hart & Iliff has provided top quality products and services to the residents of Sussex, Northern Morris and Northern Warren Counties since 1889. Our products and services include:
What Our Clients Are Saying
"Your response to a service call has been outstanding. Your technicians are first class and know their trade."
Frequently Asked Questions
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Get StartedWhat Our Customers are Saying
These are unsolicited comments received from Hart & Iliff customers.
"Your service technicians have always been courteous and I found their work excellent."
"Thank you for coming to our need for help again. We always appreciate the quick and fine service we receive from you."
"The installation has exceeded my expectations and I am grateful for your recommendation. The installation is not only functional but has an aesthetic quality, which friends of mine have admired. The service people who installed the furnace exemplified professionalism, solid work ethic, and excellent customer care. They spent a bit of extra time explaining furnace operation and their work. The extra minutes they spent with me made initial operation and programming much simple and probably eliminated a service call. As a result of your excellent service, I am and will be a very loyal Hart & Iliff customer. I recommend your company to others on a regular basis."