Air Conditioning Replacement

Reliable AC Replacement in Connecticut

If your air conditioner can’t keep up with the summer heat, it may be time for a replacement. At A&S Nathan Heating & Cooling LLC, we specialize in replacing old or inefficient air conditioning systems with modern, energy-efficient solutions that keep your home cool and comfortable. From central air units to ductless mini-splits and heat pumps, our licensed technicians will help you upgrade with confidence.

Signs You Need AC Replacement

  • Your AC is 10–15+ years old and breaking down frequently

  • Rising energy bills despite regular maintenance

  • System struggles to keep your home cool or runs constantly

  • Frequent repairs costing more than the system is worth

  • Outdated equipment with poor efficiency ratings

Why Choose Us for AC Replacement?

  • Expert Guidance – We’ll help you select the best cooling system for your home and budget.

  • High-Efficiency Options – Upgrade to a system that saves energy and lowers monthly costs.

  • Ductless & Heat Pump Solutions – Flexible choices for all home types.

  • Licensed & Insured Technicians – Professional service you can trust.

  • Financing Available – Flexible payment options through Synchrony.

Systems We Replace

  • Central air conditioning units

  • Heat pumps

  • Ductless mini-splits

  • Thermostats & zoning systems

Service Areas

We proudly provide AC replacement services throughout Connecticut, including:
Fairfield • Stratford • Trumbull • Shelton • Milford • Monroe • Newtown • Ansonia • Derby • Seymour • Orange • Beacon Falls • Bethany • Oxford—and nearby communities.

Replace Your AC System with Confidence

Don’t wait for a total breakdown—plan ahead and stay cool with a professional AC replacement from A&S Nathan Heating & Cooling LLC. Call (203) 555-1234 or click Book Appointment to schedule your free estimate today.

Book an Appointment
5-star rating
Had both ac units replaced and the guys did a great job and were extremely clean .
— Tony Ministro
5-star rating
Been a customer of A&S Nathan for a long time. They are professional, knowledgeable and honest. The team also takes the time to answer any questions or concerns. The office staff is
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— Maureen Grohe
5-star rating
I just wanted to say is on Friday October 31, 2025 we needed service done on our oil burner. Your technician Mr Craig & I forgot the other gentleman name. They did an awesome job do
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— Abtin Nejad
5-star rating
We have been using A&S Nathan Heating & Cooling LLC for several years now. They are great company. All their office and field staff are friendly and knowledgeable. Their prices
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— Michael Stisi
5-star rating
Thank you to David and his team who came out quite early on a bitter cold and snowy day. Our boiler stopped working on Sunday and they were able to come on short notice to get it up and
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— Maria Esteves
5-star rating
Amazing fast SAME DAY SWRVICE ! ????? Thank you so much Dave ! Will absolutely recommend !
— Irene Camara
5-star rating
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
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— Nick O
5-star rating
Very satisfied with installation and service.
— starry night
5-star rating
We loved their service from scheduling down to getting the work done. Great prices! Worth the work!! 10/10
— Karina Dejesus
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
Bought a home and the inspection turned up no issues with the air conditioning except that it was aged and nearing the end of its service life. Two days after moving into the home on th
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— Alex Hayden
5-star rating
Prompt free quote, honest guidance on what the best repair/replacement would be. The crew that installed our new boiler was professional and courteous.
— chris sauro