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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:

Receive Up to $250 When You
Refer a Friend!

When your referred friend completes an installation over $6,000 you both will receive a $250 gift card.

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.

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.

What Is Mitsubishi Electric's INVERTER Technology?

What Is Mitsubishi Electric’s INVERTER Technology?

Learn about Mitsubishi Electric's Hyper-Heating INVERTER® (H2i®) technology works to keep you warm in the winter. Call N.E.T.R., Inc. now ...
Top 10 Mitsubishi Mini-Split Heating Features

Top 10 Mitsubishi Mini-Split Heating Features

Discover the top features that make Mitsubishi mini-split heaters a great choice for warming your Boston home or business and how we can help you ...
9 Furnace Maintenance Tips to Get You Through The Winter

9 Furnace Maintenance Tips to Get You Through The Winter

Discover 8 helpful furnace maintenance tips to keep your equipment in good condition, plus who to call if you run into a heating emergency ...
10 Myths About Gas Heating REVEALED!

10 Myths About Gas Heating REVEALED!

Chances are you’ve heard some myths about gas heating & we’re here to debunk them. Click to reveal the truth about gas & how to ...
How to Get Clean Heating in Your Home

How to Get Clean Heating in Your Home

Clean, energy-efficient heating is much cheaper than traditional methods. Get step-by-step help switching your home over to clean heating this season ...
How to Zone a Larger Home with Ductless HVAC

How to Zone a Larger Home with Ductless HVAC

Do you have a big house? Ductless HVAC offers the ability to heat & cool areas independently from one another. Click here to explore ductless ...

Schedule an Emergency Service

We will provide you to with installation, repair or maintenance services that you require, all while providing excellent service.