Heating Replacement

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:

  • Your furnace or boiler is more than 15–20 years old

  • Rising energy bills despite regular maintenance

  • Uneven heating or cold spots in your home

  • Frequent breakdowns or costly repairs

  • Strange noises, odors, or reduced air quality

Our Heating Replacement Services

We provide expert installation of energy-efficient heating systems, including:

  • Gas and oil furnaces

  • Boilers

  • Heat pumps

  • Ductless mini-splits

  • 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?

  • Local Experts – Trusted HVAC company proudly serving Connecticut families

  • Licensed & Insured – Fully certified for furnace and boiler replacements

  • Energy Efficiency – We install systems that meet or exceed ENERGY STAR® standards

  • Financing Options – Flexible plans available to fit your budget

  • 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.

Book an Appointment
5-star rating
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
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— Deb Tiriolo
5-star rating
We have been using A&S Nathan for several years for yearly furnace cleaning and this was our first need of emergency furnace service. On 9/23, I called A&S Nathan at 913am as ou
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— kathy scholz
5-star rating
Professional fast and great pricing. Jake and his team do not play around. From top to bottom a great company to work with! Highly recommend
— jack videira
5-star rating
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
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— Shane Hyland
5-star rating
I reached out for help with my AC unit that wasn’t cooling, and they came out the same day to diagnose the problem. Mark, the technician, was very knowledgeable and took the time to e
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— Carlos Caraballo
5-star rating
We have used A&S Nathan for years to service our oil burner and our air condition. They also installed a ductless AC in our first floor which we love. We decided to update our heat
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— Laurel Sorrentino
5-star rating
This company is fantastic. I had probably the worlds worst central air system installed by previous homeowners and after 6 years of finagling it finally called 3 companies. A&S was
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— Michael Thomas
5-star rating
I used A&S Nathan to replace my forced hot air heating and air conditioning system in August 2024.
— scott reed
5-star rating
Absolutely a 10 out of 10 rating. We had to have our 33 year old boiler replaced. The crew was here on time, were honest, efficient, helpful, very clean and got the job done very quickl
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— Debbie Mahoney
5-star rating
A&S Nathan Heating & Cooling LLC are truly professional. They’re the only company that responds quickly and is on site to make repairs when needed. The technicians are kno
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— Brian Fandetti
5-star rating
Paul & Wes did a great job! I could see that they had a plan in place and they working accordingly. The water heater selection was a great choice; and one the company stands behind
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— Stephanie Fians
5-star rating
Technicians were great. Really focused on preventative maintenance. Tested airflow temperature differential, belts, checked water chases to ensure no clogs were forming. Great job. 40 m
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— Larry Zollo