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.

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.

Air Conditioning Unit

How Much Clearance Should My Outdoor AC Unit Have Around It?

Learn how much space you need to have around your outdoor AC unit & what happens if you don't have enough clearance. Get help from ...
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commercial HVAC system

What Is the Best HVAC System for Your Business?

Learn how to choose the best commercial HVAC system for your business. Contact leading heating and cooling specialists N.E.T.R., Inc. today for help ...
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Commercial HVAC

How Does a Commercial HVAC System Work?

Learn why it's crucial to understand how Commercial HVAC system work in order to select the best system for your company's needs ...
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HVAC Maintenance

5 Reasons HVAC Maintenance Is Important for Your Business

Learn why HVAC maintenance is important for businesses. Find out how to properly maintain your HVAC system & how to contact an experienced professional ...
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How to Keep Insects Out of Your HVAC System

How to Keep Insects Out of Your HVAC System

Find out how insects get into your home through your HVAC system. Learn ways to prevent bugs from getting into your air conditioner ...
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Home Air Sealing 101

Home Air Sealing 101

Learn what air sealing is & why it's important to manage utility costs & comfort. Discover how HVAC & duct sealing can benefit your home ...
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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.