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
Amana offers gas furnaces, central air conditioners, and heat pumps. Select registered models include limited lifetime coverage, and A.J. LeBlanc Heating explains the exact model, registration requirements, and warranty terms in the proposal.
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Goodman
Goodman offers gas furnaces, central air conditioners, heat pumps, and air handlers across a range of efficiency levels. A.J. LeBlanc Heating installs and services Goodman equipment throughout Southern NH.
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Carrier
Carrier offers furnaces, central air conditioners, heat pumps, air handlers, and ductless systems. A.J. LeBlanc Heating installs and services Carrier equipment throughout Southern NH.
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American Standard
American Standard offers furnaces, heat pumps, air conditioners, and air handlers across several efficiency and comfort levels. A.J. LeBlanc Heating installs and services the brand throughout Southern NH.
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Trane
Trane offers furnaces, heat pumps, air conditioners, and air handlers for ducted heating and cooling systems. A.J. LeBlanc Heating installs, maintains, and repairs Trane equipment throughout Southern NH.
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Lennox
A.J. LeBlanc Heating installs and services Lennox furnaces, air conditioners, and heat pumps. We select the model around the home's load, existing ductwork, efficiency goals, and budget.
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Rheem
Rheem offers furnaces, air conditioners, heat pumps, and several types of water heaters. A.J. LeBlanc Heating selects and services the equipment by application, not simply because the products share a brand name.
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York
York offers air conditioners, heat pumps, furnaces, and air handlers for ducted home-comfort systems. A.J. LeBlanc Heating installs and services York equipment throughout Southern NH.
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Maytag
Maytag-branded heat pumps, air conditioners, and furnaces are available for selected projects. A.J. LeBlanc Heating explains the current model and its exact manufacturer warranty before installation.
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BoschPlatinum Dealer
Bosch offers IDS ducted heat pumps, mini splits, furnaces, and boilers. As a Bosch Platinum Dealer, A.J. LeBlanc Heating matches the equipment to the home and explains model-specific performance and warranty coverage before installation.
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.