What We Do
We are New England’s leading HVAC contractor for Residential Heating and Cooling and Commercial HVAC systems.
Residential
Find out how Mitsubishi Electric ductless can transform your living space.
Install
Heating
Cooling
Ductless
Traditional
Commercial
Learn how ductless can keep any commercial space comfortable.
Install
Refrigeration
Heating
Cooling
Where We Do It
From Tudors to Colonials to split-level homes and more, we’ve installed ductless HVAC systems in all types of single-family homes, condos, brownstones and apartments in and around the Boston area.
Hear From Our Satisfied Customers:
Featured Services
We are the largest ductless contractor in New England with hundreds of ductless system installations.
N.E.T.R. Inc., in-house staff of certified HVAC/R technicians can install, service and repair your commercial refrigeration systems.
Ductless Cooling
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Commercial Refrigeration
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Maintenance Programs
Our highly trained HVAC technicians can maintain, tune up and/or repair your current system, so you can stay warm in the winter and cool in the summer. No sweat, No stress. An HVAC preventative maintenance ensures healthier air, fewer emergencies and a long-lasting system.
HVAC Insights
Explore our Heating and Cooling articles. Make sure to come back soon for more resources as you learn the best ways to heat and cool your home.
Ductless Ceiling Cassette Installation (Podcast)
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What to Know Before Putting a Ductless Mini Split on the Wall
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What Is a Wall-Mounted Heat Pump?
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Ductless Ceiling Cassette Costs (Podcasts)
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Cost Savings to Switch from Oil, Gas, or Electric to a Heat Pump System
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Can Ductless AC Help Me Sleep?
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Schedule an Emergency Service
We will provide you to with installation, repair or maintenance services that you require, all while providing excellent service.
