Central Air Conditioning
Installation in Southern NH
A.J. LeBlanc Heating installs and replaces central air conditioning systems across Southern New Hampshire. We size each one to fit your home so it cools evenly, install it cleanly, and back the work with our workmanship warranty.
Central Air Conditioner Installation & Replacement
A properly installed central air conditioner keeps your whole home cool through New Hampshire summers, without the noise and running costs of window units. A.J. LeBlanc Heating installs and replaces central A/C systems across Southern NH, sizing each one to match your home so it cools evenly and runs efficiently. Every install is handled start to finish by our own in-house HVAC technicians, never subcontracted trade work.
- Central A/C installation and replacement
- All major A/C brands installed and serviced
- New systems sized to your home's actual cooling needs, not by guesswork
- All electrical, refrigerant, and permit work included
- Workmanship warranty on every install
- NHSaves rebates of $70/ton, with the paperwork prepared and filed with you
Whole-Home Comfort with Your Existing Heating
Central air conditioning works with your existing furnace ductwork and blower to deliver conditioned air throughout the home. If you have a forced-air furnace, adding central A/C is typically the most cost-effective way to cool your whole home without any visible equipment changes. We tie the new A/C into the existing duct system, add the refrigerant line set, and wire the controls to your thermostat.
- Works with your existing furnace and ductwork
- Single thermostat controls both heating and cooling
- Quieter and more efficient than window units
- Adds value to your home
- Most installs completed in one day
Recent Central A/C Installations
Central A/C Brands We Install & Service
Amana
Heating and cooling systems that last and last. Amana units come with some of the strongest limited lifetime warranties in the industry.
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Goodman
Made-in-USA furnaces and HVAC systems offering solid reliability at an accessible price point. A popular choice for furnace replacement across Southern NH.
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Carrier
The brand built by the inventor of modern air conditioning. Carrier furnaces, air conditioners, heat pumps, and ductless mini splits are recognized for engineering quality and long service life.
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American Standard
Dependable furnaces, heat pumps, and air conditioners known for quiet operation and lasting performance. A trusted brand for long-term comfort.
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Trane
High-performance HVAC systems built to handle extreme conditions. Trane furnaces, heat pumps, and air conditioners deliver consistent comfort and long-term reliability.
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Lennox
A longtime Lennox dealer offering their full lineup of furnaces, air conditioners, and heat pumps.
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Rheem
Complete heating, cooling, and water heating under one brand. Rheem furnaces, air conditioners, heat pumps, and water heaters all from a single trusted source.
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York
Energy-efficient air conditioners, heat pumps, furnaces, and air handlers from York, now backed by Bosch Home Comfort.
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Maytag
Dependable, energy-efficient heat pumps, air conditioners, and furnaces backed by a 12-year limited warranty. A trusted name in home comfort.
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BoschPlatinum Dealer
Bosch IDS systems are among the quietest on the market and engineered specifically for cold climates. A strong performer at a competitive price point. As a Bosch Platinum Dealer we provide factory-trained installation and extended warranty coverage.
Learn moreCentral A/C FAQ
How much does central A/C installation cost in NH?
A central air conditioner installation in Southern NH typically runs $6,550 to $9,100 depending on the size of your home, the efficiency rating of the equipment, and whether any ductwork modifications are needed. We provide free written estimates upfront.
How long does installation take?
Most central A/C installations are completed in one day. We install the outdoor condenser, connect it to your existing air handler or furnace, run refrigerant lines, and test the system before we leave.
Are there rebates for central A/C?
NHSaves offers a $70/ton rebate for qualifying ENERGY STAR certified central air conditioners. We are a registered NHSaves contractor, and we prepare and file the rebate paperwork with you.
My house has no ductwork, can I still get central A/C?
If you do not have existing ductwork, a ductless mini split system is often the better solution. We install both and can walk you through the options. See our mini split page.
What size central A/C do I need?
The size you need depends on more than your home's square footage. For a new system we measure your home and calculate how much cooling it actually needs, looking at your insulation, windows, sun exposure, and the layout of your ductwork. Then we match the equipment to that. Bigger is not better, because an oversized unit cools in short bursts that leave the air damp and the temperature uneven. We take the time to size it correctly before we put a written quote on paper.
Can I add central A/C to my existing furnace?
In most cases, yes. If you have a forced-air furnace with ductwork, we can add a central A/C system that shares the same ducts and blower and runs off one thermostat. It is usually the most cost-effective way to cool a home that already has forced-air heat. If you do not have ductwork, a ductless mini split is the better option.
How long does a central A/C system last?
With regular maintenance, most central air conditioners last about 15 to 20 years in New Hampshire's climate. Annual tune-ups, clean filters, and correct refrigerant levels help you reach the high end. When repairs become frequent or efficiency drops, it is usually time to plan a replacement.
Do you offer financing?
Yes. We offer financing on new central air conditioning systems, so you can spread the cost into manageable monthly payments instead of paying for everything up front. We will walk you through the options during your free estimate. See our financing page for details.
Southern NH Communities We Serve
Free estimates and prompt service across Southern New Hampshire. Find your town for local details, or call 603-623-0412.
Services in Southern NH's Largest Cities
Manchester
Nashua
Get a Free A/C Installation Estimate
A.J. LeBlanc Heating assesses your home, sizes the system to fit, identifies every available rebate, and puts a written quote on paper before any work begins.
Get in Touch
Fill out the form and we'll get back to you. Usually the same business day. For emergencies, call us directly.
Contact Information
Mon-Fri: 8am-4:30pm
Evenings & Weekends: Emergency Service
24/7 Emergency Service
No heat? No hot water? Call 603-623-0412 any time.