Air Conditioning Installation in Southern NH
Beat the heat with new central air, installed in as little as a day. Free written estimate, NHSaves rebates on heat pump systems, and 0% financing available.
Quality Air Conditioning Installation Done Right
A.J. LeBlanc Heating has installed air conditioning throughout Southern New Hampshire for more than half a century. Whether we are replacing an aging system or adding central air for the first time, we size the equipment for the home, explain the options clearly, and stand behind the installation.
Family-Owned in Southern NH Since 1928
EPA Section 608-Certified Technicians
Air-conditioning installations are completed by background-checked A.J. LeBlanc employees, with EPA Section 608-certified HVAC technicians handling the refrigerant work. Every new heating and air-conditioning installation includes our five-year workmanship warranty.
Readers' Choice Awards Winner
NH Union Leader Readers' Choice Awards honoree for 14 consecutive years, including four category wins in 2026.
Free Written Estimates
We provide detailed written estimates before any work begins. No surprises, no pressure.
Family-Owned Since 1928
Four generations of the LeBlanc family serving Southern NH homeowners.
New Central Air Conditioning
A new system starts with proper equipment sizing, correct refrigerant line runs, and integration with your existing ductwork and electrical panel.
- Free in-home assessment and system-sizing review
- All major brands: Bosch, Rheem, American Standard, Goodman, Amana, Carrier, Trane, Daikin
- Full refrigerant line set and electrical work included
- Permits pulled and inspections handled
- Manufacturer warranty plus our five-year workmanship warranty
Replacing Your Existing System
If an older system is failing repeatedly, we compare the repair cost, equipment condition, efficiency, refrigerant type, and warranty options before recommending another repair or replacement.
- Direct like-for-like replacements
- Upgrades to higher-efficiency SEER equipment
- Heat pump upgrades that heat and cool in one system
- NHSaves rebates on qualifying equipment
- Most replacements finish in one day
How We Price A/C Installation
Free Written Estimates
A Home Comfort Advisor visits your home, reviews the layout, insulation, windows, electrical service, and ductwork, and gives you a written quote. When the project calls for a detailed cooling-load calculation, we can complete one before the equipment is selected. No charge, no obligation.
All-In Project Pricing
One number covers the equipment, refrigerant line set, electrical work, condensate drain, permits, and inspection. No mid-job surprise charges.
NHSaves Rebate Help
A.J. LeBlanc Heating is a registered NHSaves contractor. We apply qualifying point-of-sale rebates and help you complete other available applications. You supply, sign, and submit the homeowner information. Qualifying heat pump systems earn the New England Heat Pump Accelerator discount applied right at purchase.
No Pressure, No Upsell
We recommend the right-size system for your home, not the biggest one we can sell. No pressure sales, ever.
0% Financing Available
Spread the cost with 0% promotional financing on qualifying installations. Ask your Home Comfort Advisor about current offers, eligibility, and available terms.
Reviews From Southern NH Homeowners
We love our new mini split system. What a bonus to have the a/c and heat in one system! Our A.J. LeBlanc Heating salesman was knowledgeable without being pushy. The guys who did the installation did a great job. They were fast, installation was very neat, and they made sure things were clean before they left.
Michael RobinsonDuctless Mini Split customerSales personnel, pricing, and workmanship on the installation were excellent for the mini-split installation last October.
Eileen GrimmerDuctless Mini Split customerAfter having A.J. LeBlanc Heating do an installation of the AC mini-splits about a year and a half ago, I decided to check with them first about replacing my boiler which was 30 years old. I requested the same salesman and was glad to have the continuity of someone familiar with my needs. The technicians who came to do the boiler installation were great - one was the same who had been here with the mini-split installation, so I felt comfortable that the job would be done perfectly and I was not disappointed. I would recommend A.J. LeBlanc Heating for service anytime!
Eileen GrimmerDuctless Mini Split customerRead more reviews on our testimonials page.
Free Air Conditioning Installation Estimate
Call or fill out the form. We respond the same business day and can typically schedule a free in-home estimate within the week.
Frequently Asked Questions
How much does central air conditioning installation cost in NH?
Central air conditioning installation in Southern NH typically runs $6,550 to $9,100 fully installed depending on system size, brand, and ductwork needs. A.J. LeBlanc Heating provides free written estimates with all costs itemized before work begins.
How long does air conditioning installation take?
Most central air conditioning installations take one day. Jobs that require significant ductwork modification may take two days. We confirm the timeline before scheduling.
What air conditioning brands do you install?
We install all major brands including Bosch, Rheem, American Standard, Goodman, Amana, Carrier, Trane, Daikin, and others. We recommend the best fit for your home and budget.
Are there rebates for air conditioning installation in NH?
NHSaves offers rebates on qualifying high-efficiency air conditioners and heat pumps. As a registered NHSaves contractor, A.J. LeBlanc Heating reviews the rebates that may apply to your equipment at the time of your estimate, applies eligible point-of-sale rebates, and helps with other program applications. We review the current program requirements with you before the 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.