HVAC, Plumbing & Electrical Brands
A.J. LeBlanc Heating holds top-tier dealer status with Mitsubishi Diamond, Daikin Comfort Pro, LG Pro Dealer Platinum, Bosch Platinum, and Generac Certified Service Dealer. That means stronger manufacturer warranties and factory-trained service on the brands we install.
Our Top-Tier Dealer Programs
Mitsubishi Diamond Dealer
Highest tier of the Mitsubishi Electric dealer program. Unlocks extended 12-year parts & compressor warranty on Mitsubishi mini splits and heat pumps, not available through standard dealers.
Daikin Comfort Pro
Top tier of the Daikin dealer program. Means factory-trained technicians and extended Daikin warranty registration on heat pumps, mini splits, and the Daikin Fit central lineup.
LG Pro Dealer Platinum
Highest LG residential HVAC dealer status. Qualifies LG installations for the extended warranty program and LG factory support on heat pumps and ductless systems.
Bosch Platinum Dealer
Top tier of the Bosch Home Comfort dealer program. Extended warranty coverage on Bosch heat pumps, gas furnaces, mini splits, and condensing boilers.
Generac Certified Service Dealer
Authorized Generac warranty service provider. Factory-trained technicians for Generac whole-home standby generators and PWRcell home battery systems, backed by Generac's standard manufacturer warranty.
Authorized on Every Other Brand
For brands without documented top-tier programs, we're still an authorized installer with proper factory training. Warranty registration handled correctly at every installation.
Cold-Climate Mini Split Brands
MitsubishiDiamond Dealer
The Hyper-Heat line operates down to -13°F and is our most-installed brand. As a Diamond Dealer we provide factory-trained installation and extended warranty coverage.
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DaikinComfort Pro
The world's number one air conditioning company. Daikin's cold-climate lineup includes wall-mounted, floor-mounted, and ducted systems with excellent multi-zone options. As a Daikin Comfort Pro dealer we provide factory-trained installation and extended warranty coverage.
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Fujitsu
Fujitsu's Halcyon series is a reliable, proven option with strong cold-climate ratings. Popular for additions and single-zone applications throughout our service area.
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LGPro Dealer Platinum
LG's Art Cool and LGRED heat pump series offer cold-climate performance with slim, low-profile indoor units. A strong choice for efficiency and clean aesthetics. As an LG Pro Dealer Platinum we provide factory-trained installation and extended warranty coverage.
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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.
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Custom Comfort
Value-focused mini splits and heat pumps that blend performance, comfort, and affordability, installed and serviced by our factory-trained technicians.
Learn moreCentral HVAC Equipment Brands
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.
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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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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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Lennox
A longtime Lennox dealer offering their full lineup of furnaces, air conditioners, and heat pumps.
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Thermo Pride
High-efficiency oil furnaces built for long life. Backed by comprehensive warranties and our expert oil furnace installation and service.
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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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Williamson-Thermoflo
Over a century of boiler and furnace manufacturing experience. High-efficiency gas and oil-fired boilers plus reliable gas furnaces.
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York
Energy-efficient air conditioners, heat pumps, furnaces, and air handlers from a brand backed by Johnson Controls.
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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.
Learn moreBoiler Brands
Biasi
Italian-engineered triple-pass oil boilers. The B-10 achieves fuel savings of up to 40% over conventional single-pass boilers.
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Viessmann
German-engineered high-efficiency boilers. More than a century of manufacturing excellence and recognized system longevity.
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Energy Kinetics
System 2000 combines heat and hot water in one fuel-neutral high-efficiency appliance. Whisper-quiet operation with virtually unlimited hot water.
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Buderus
Over 100 years of high-efficiency boiler manufacturing. Buderus cast iron sections are renowned for longevity and reliable performance.
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Burnham
High-efficiency residential and commercial boilers in both oil-fired and gas-fired models, including cast iron and condensing options.
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Utica
Over 90 years of boiler manufacturing. A wide range of gas and oil-fired boilers for hot water and steam heating systems.
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Saint Roch
European-crafted cast iron boilers emphasizing efficient heat exchange and durability. A trusted choice for hydronic heating systems.
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Weil-McLain
American-made boilers trusted in homes for over a century. Weil-McLain offers a broad lineup of cast iron and high-efficiency gas and oil boilers, and is one of the most-installed boiler brands in Southern NH.
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Navien
Navien condensing boilers and tankless water heaters are among the most efficient available: up to 0.96 UEF tankless and 95% AFUE condensing boilers.
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Rinnai
Innovative tankless water heaters and condensing boilers. Endless hot water with up to 40% energy savings compared to tank systems.
Learn moreWater Heater Brands
Rinnai
Innovative tankless water heaters and condensing boilers. Endless hot water with up to 40% energy savings compared to tank systems.
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State Water Heaters
Built for durability in the toughest conditions. State components are manufactured to stricter standards for longer product life.
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Bradford White
American-made water heaters sold only through professional contractors. A reliable choice for traditional gas and electric tank water heater replacements.
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A.O. Smith
A global leader in water heating technology for more than 70 years. Reliable electric, gas, power-vent, and heat pump models.
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Bock
Bock Water Heaters has manufactured oil-fired water heaters in Wisconsin since 1929 and is the #1 selling oil-fired water heater in North America. Acquired by Bradford White Corporation in 2025.
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HTP SuperStor
Indirect water storage tanks that pair with your boiler for highly efficient domestic hot water production.
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Heat-Flo
Indirect water heaters, high-output stainless tanks, hydronic buffer tanks, and storage tanks. Made for pairing with gas and oil boilers.
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Navien
Navien condensing boilers and tankless water heaters are among the most efficient available: up to 0.96 UEF tankless and 95% AFUE condensing boilers.
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Everhot by Therma-Flow
Everhot oil-fired tank water heaters from Therma-Flow, Inc. ("tfi everhot"). Glass-lined standalone oil-fired tanks built for NH homes already running on oil heat. Long lifespan, high recovery rates, and a Northeast plumbing-trade staple.
Learn moreThermostat & Air Quality Brands
ecobee
Smart thermostats with room sensors for balanced temperatures throughout your home. Full mobile app control and Google/Alexa integration.
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Nest
Smart thermostats by Google that learn your schedule and can reduce energy consumption by up to 20%.
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Aprilaire
Whole-house humidifiers, dehumidifiers, and media air cleaners. Aprilaire is the industry leader in indoor air quality products.
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Lifebreath
HRV and ERV ventilators manufactured in North America for over 40 years. Cores recover up to 87 percent of the energy from outgoing air.
Learn moreGenerator Brands
GeneracCertified Service Dealer
The most-installed home standby generator brand in the country. We are a Generac Certified Service Dealer offering installation, service, and PWRcell home batteries.
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Kohler
Kohler standby generators are known for quiet operation and premium build quality. A strong choice for homeowners who want the best.
Learn moreHVAC Control Brands
Taco
Taco circulator pumps, zone valves, and zone control boards. The backbone of efficient, well-zoned hydronic heating systems.
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Honeywell
Honeywell thermostats, zone panels, zone dampers, and zone valves. A premier installer for new and existing Honeywell control systems.
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EWC Controls
American-made zone control panels, zone dampers, and HVAC accessories. EWC Ultra-Zone systems are a workhorse for converting single-zone forced-air homes into properly zoned comfort systems.
Learn moreWhy These Brands
Cold-Climate Performance
Southern NH winters are serious. We only install heat pump brands rated and proven for cold-climate operation. Mitsubishi, Daikin, LG, and Bosch cold-climate systems all maintain strong performance well below freezing.
Parts Availability
A brand is only as good as the support behind it. We stock common parts for the brands we install and can source others quickly through our distributor network. That matters when your system needs repair on a cold night.
Extended Warranties
Top-tier dealer status with Mitsubishi, Daikin, LG, and Bosch means we can register extended manufacturer warranties that aren't available through standard dealers. 12 years parts/compressor on Mitsubishi mini splits is one example. For every other brand, your warranty is registered correctly at installation.
Proven in Our Service Area
We've been installing equipment in Southern NH since 1928. The brands on this page are ones we've serviced for years and know hold up well in NH homes and weather conditions.
Not Sure Which Brand Is Right for You?
We assess your home, your existing system, and your goals, then recommend the right brand and model for your situation. No upsell, no pressure.
Get in Touch
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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.