Heating Replacement
When the temperatures drop, you need a heating system you can rely on. At A&S Nathan Heating & Cooling LLC, we specialize in professional heating replacement services that keep your home warm, efficient, and safe. Serving homeowners across Fairfield County, New Haven County, and surrounding Connecticut towns, our licensed technicians deliver dependable solutions tailored to your home and budget.
Signs It’s Time to Replace Your Heating System
Not sure if repair is enough? Replacement may be the smarter investment if your system shows these signs:
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Your furnace or boiler is more than 15–20 years old
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Rising energy bills despite regular maintenance
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Uneven heating or cold spots in your home
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Frequent breakdowns or costly repairs
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Strange noises, odors, or reduced air quality
Our Heating Replacement Services
We provide expert installation of energy-efficient heating systems, including:
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Gas and oil furnaces
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Boilers
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Heat pumps
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Ductless mini-splits
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High-efficiency systems designed to lower utility costs
Every installation includes professional sizing, removal of old equipment, and a clean, safe setup so your home is ready for comfort right away.
Why Choose A&S Nathan Heating & Cooling LLC?
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Local Experts – Trusted HVAC company proudly serving Connecticut families
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Licensed & Insured – Fully certified for furnace and boiler replacements
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Energy Efficiency – We install systems that meet or exceed ENERGY STAR® standards
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Financing Options – Flexible plans available to fit your budget
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24/7 Emergency Service – We’re here when you need us most
Serving Your Town
We proudly offer heating replacement in towns across Connecticut, including Bridgeport, Stratford, Milford, New Haven, Trumbull, Shelton, Fairfield, Hamden, Waterbury, and more.
Book Your Heating System Replacement Today
Don’t wait until your system fails during the coldest day of the year. Schedule a consultation with our team and discover the best replacement options for your home.
Shout out to A&S Nathan Heating and Cooling. Today we discovered our water heater sprung a leak (water everywhere) Called A&S first thing this morning and they were able to come— Deb Tiriolo
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My wife and I went through many hvac contractors before finding Jake and his team. We are so happy to have honest and efficient technicians to service our equipment year round.— Stephen
I’ve been using A&S Nathan since i moved into my home 11 years ago for all heating and Air Conditioning Services. From the office staff to the technicians they are a A+ busine— Customer Service
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Always professional, courteous, and on time.— Christine DAulizio
A&S Nathan was easy to schedule, timely and professional. I was very pleased with their services!— Marlene Piscioniere
Great company and great tech’s. They are always on time, professional, and clean. Prices are fair and service and communication are great. No brainer…— Allied Design Co LLC
I called A&S Nathan when the furnace in a home I was selling went and needed to be replaced asap to not jeopardize the sale. They responded immediately. The job was done quickly and— Colleen Scott
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Kyle came out in a hot Sunday and got our A/C working again in about an hour. Up in our hot attic and stayed pleasant and upbeat the whole time. Great guy, great service.— T Dillon
Fast service. Called on a dead furnace and new furnace installed SAME DAY!— George Habrecht
We have used a number of HVAC companies over the years and A&S Nathan is by far the best. They respond quickly, identify issues quickly, and the price is right! Not to mention every— Amy Joyce
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A huge thanks to Dan, Mark and the entire A&S Nathan crew. With some cold weather finally rolling in they were able to get everything up and running quickly. Great prices and Truly— Shane Hyland
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Great company. They have been servicing my oil furnace and air conditioning unit for about 20 years. The technicians are friendly, courteous and excellent at their trade. Highly recomme— Nick O
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