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
7pm on a Saturday night & my furnace goes out. Who did I call? A&S Nathan of course. The tech was there promptly. Clean & professional. I had heat in less than an hour. Th
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— Paul Harris
5-star rating
I very rarely write a review for a company but this is my SECOND review for A&S NATHAN… From the office people to the techs themselves, there is always a feeling of family and pro
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— Martin Goldschmidt
5-star rating
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
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— carl iacomacci
5-star rating
Big shout out to A&S! Our fujitsu mini split was blowing warm air, called several shops and got the run around or no call backs. A&S was able to send a tech out the next day, TH
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— M Carrello
5-star rating
My AC stopped working during a heat wave. I called A&S Nathan Heating & Cooling LLC, and they were able to come within two hours to diagnose and fix my system. They are fast, re
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— Amanda Schaefer
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
I have used A&S for several years now, mostly for general system maintenance but also for replacement of a tankless water heater. They are always on-time, professional, and do great
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— John N
5-star rating
Love them!
— Margaret Gough
5-star rating
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
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— Theresa Hanson
5-star rating
I live in Florida and I needed to have my old heating system replaced in Stratford, Ct. I needed a company that I could trust to do the job. A&S Nathan Heating provided that. They w
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— Philip Michitsch
5-star rating
These guys absolutely Rock!! They installed a new Weil-McClain boiler today, to replace my 30 year old unit. Workmanship was superb! They were clean, professional and indeed craftsman.
— Jason Dokla
5-star rating
Had A&S Nathan come out and service my in-laws house this week 11/5. Stew was the tech and did an excellent job! He was very professional, knowledgeable and a polite guy. He got the
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— Victoria Kondor