“The crew did an excellent job during my conversion from oil to propane. The work was of the highest quality and they completed it in a timely and organized manner. Their attention to detail was impressive, and I was particularly pleased with the way the front office managed the project from beginning to end.
The crew was a pleasure to work with, and they were always courteous, communicative, and professional. I would not hesitate to recommend them to anyone considering a similar project. Thank you again for your excellent work.”
Customer Reviews
“Mark came by today to service my boiler and he was professional and efficient. Offered suggestions for future maintenance and took the time to explain the services he provided. Highly recommend A&S Nathan.”
“In this day and age, it can be challenging to find a company that is responsive, reliable, competitive in pricing, and does OUTSTANDING work. A&S Nathan LLC is simply the best in the business. Jake (the handsome business owner) and his staff added an additional heating/cooling zone to my newly built colonial without a bump in the road. When I first notified A&S of my need, Jake quickly came out to assess the project and formulated a plan of attack. Not long after, the A&S team arrived on the job and took care of business in only a few hours! BOOM! 5 out 5 all day long. The founder of the company, Allen has established themselves as the ELITE in the HVAC world. It should also be noted they legitimately look out for your best interest.”
“I had my first experience with A&S Nathan HVAC on April 29, 2025. Making the appointment was a breeze. Received cordial service over the phone.
On the day of the service (tune-up and cleaning of 2 C/A units and also oil furnace) the technician Dave M. arrived on time and was very pleasant. He was neat and efficient. I call the office and ask that they give him a raise as they needed to retain him as an employee!!
I am VERY happy with the service that I received and will use this company every year going forward for all my HVAC needs.”
“Craig did a great job on our annual service. They have always been efficient and helpful when our AC or heat has issues.”
“If oil furnace abuse was a crime, I'd be writing this from Sing Sing. I've neglected my Weil oil furnace for a few years and it finally had enough of my abuse.
So after looking for a local highly rated company to service my house in hamden we called nathan, and a wonderful gentleman named Ricardo came over to service the furnace id unknowing been abusing for years.
Now nobody likes hearing youre major appliances are in need of multiple life saving measures and nobody likes spending money, but Ricardo showed me everything that was caked in black tar or oozing muddied oil, he kept a running tally of my expenses so I wouldn't stroke out with the final number and he stayed to walk me thru everything and gave me a rudimentary idea of how this heater id owned and abused for years actually worked. On a Friday at rush hour no less.
So the money spent has already brought forth an amazing hot shower and for once I have complete confidence in the work and integrity of a contractor.
Thank yoy A&S nathan and especially thank you Ricardo for your patience, your explanation and your ability to deliver news i was fearing in the most human and understanding of ways.
Quality human being, fantastic technician and a quality company.
I highly recommend using them when you're done having your brother in law fix your furnace, or are worried you'll receive a fly by night poorly done job.
They did a grest job at a fair price.
Thanks guys.”
“A&S has been doing my heating and AC for many years now. Awesome and quick service, very professional, everyone knows their stuff!
Al & Jake are very knowledgeable with all they do. We highly recommend them!!!”
“Needed the furnace serviced before the start of cold season and customer service was great. Called and spoke with a nice woman who explained their pricing and deals (without being pushy at all). Once we decided what we wanted, she set up an appointment for first opening. The serviceman who came to the home was quick, respectful, and did the job well. Fair price. No complaints. Would use again and recommend!”
“A&S Nathan is a small local company that provides great service for all your HVAC needs. They are professional, responsive, they don’t cut corners, but most of all are a pleasure to deal with from their front office to their technicians to the owner himself.”
“A & S Nathan has repaired and maintained my furnace for several years now and I'm VERY happy with their service, honesty and reliability. They are easy to communicate with and everyone has been so helpful. I had used several other companies prior, and working with A & S Nathan is by far the best experience I've had.”
