Comfort You Can Count On. Prices You Can Trust.
Honest Work. Fair Pricing.
Professional Heating & Cooling. 24/7 Across New Hampshire.
Residential and light commercial HVAC installation, replacement, service, and repair from a locally owned and operated New Hampshire company. A. Bordeau Mechanical is built on quality workmanship, straightforward recommendations, and professional, dependable service — with the owner personally involved on every job and every system properly installed and commissioned to run the way it should.
Boilers & Hydronic Heating Specialty
Installation, repair, replacement, and troubleshooting for boilers and hydronic heating systems.
- Boiler installation and replacement
- Oil, propane, and natural-gas boilers
- Combi boiler systems
- Circulator replacement
- Zone controls
- Hydronic piping
- Baseboard heating
- Radiant heating components
- Expansion tanks
- System controls
- Heating system troubleshooting
- Hydronic system upgrades
Furnaces & Forced-Air Heating
Professional installation, replacement, service, and repair of oil, propane, and natural-gas forced-air heating systems.
- Furnace installation and replacement
- Oil furnace service and repair
- Gas and propane furnace service
- Heating system diagnostics
- Blower and airflow troubleshooting
- Thermostat and control service
- Furnace maintenance
- Forced-air system upgrades
- High-efficiency furnace installation
Central Air Conditioning
Professional central air-conditioning installation, replacement, repair, and maintenance.
- New central A/C installation
- A/C replacement
- Cooling system diagnostics
- Air-conditioning repair
- Refrigerant system troubleshooting
- Evaporator and condenser replacement
- Thermostat upgrades
- Seasonal maintenance
- Airflow improvements
- Complete heating and cooling system installations
Heat Pumps & Ductless Mini-Splits
Efficient heating and cooling solutions for homes, additions, garages, offices, and other spaces.
- Single-zone mini-split installation
- Multi-zone mini-split installation
- Heat pump installation
- Mini-split replacement
- Mini-split repair and diagnostics
- Refrigerant troubleshooting
- System commissioning
- Indoor and outdoor unit service
- Supplemental heating applications
- Whole-home ductless solutions
Water Heating
Professional installation and service for residential and light commercial domestic hot-water equipment.
- Tankless water heaters
- Indirect water heaters
- Conventional tank-type water heaters
- Water heater replacement
- Domestic hot-water troubleshooting
- Tankless flushing and maintenance
- Boiler-connected indirect systems
Ductwork & Airflow
Proper airflow is an important part of heating and cooling performance.
- New ductwork installation
- Existing duct modifications
- Supply duct installation
- Return duct installation
- Duct repairs
- Duct replacement
- Duct insulation
- Airflow corrections
- Filter cabinet upgrades
- High-efficiency filtration
- HVAC system additions
HVAC Zoning & Controls
Improve comfort and system control throughout your home or building.
- HVAC zoning systems
- Zone control panels
- Motorized dampers
- Thermostat replacement
- Wi-Fi thermostat installation
- Smart thermostat upgrades
- Heating and cooling controls
- Control system troubleshooting
Oil Tank Replacement
Professional above-ground heating-oil tank replacement and associated piping work.
- Oil tank replacement
- Existing tank removal
- Tank piping
- Oil valves and fittings
- Tank gauges
- Fill and vent piping modifications
- System startup and testing
HVAC Maintenance
Preventative maintenance helps identify problems before they become emergency repairs and helps heating and cooling equipment operate properly.
- Oil heating maintenance
- Gas and propane heating maintenance
- Boiler maintenance
- Central A/C maintenance
- Heat pump maintenance
- Mini-split cleaning and maintenance
- Tankless water heater maintenance
- Seasonal system inspections
Residential & Light Commercial HVAC
A. Bordeau Mechanical provides HVAC service for homeowners, property owners, contractors, and light commercial properties throughout New Hampshire. We service and install all major makes and models.
HVAC Service When You Need It
Available 24 Hours a Day, 7 Days a Week.
A. Bordeau Mechanical provides 24/7 availability for heating and cooling service throughout the year. Emergency heating and cooling calls are accepted nights and weekends, subject to technician availability.
Emergency HVAC Service
No heat? No cooling? Equipment failure? Call A. Bordeau Mechanical for emergency HVAC service and we will make every reasonable effort to get your system back up and running as quickly as possible.
Hours of Availability
Closed on major holidays except for previously scheduled work or emergency situations accepted at our discretion.
Schedule a consultation.
Tell us what's going on and what system you have. Andrew will follow up to schedule a visit and walk you through a project plan.
Questions? Reach out directly.
Not ready to schedule yet? Send a question and Andrew will get back to you personally.
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