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NETR Inc  
Best air conditioning contractor in Boston.

We think the easiest way to tell you what we do is to show you what we do. Serving the greater Boston area, we've done installations from Providence, Rhode Island to Maine, and have served New England Homeowners for over twenty years.

So find a home or a neighborhood that looks like yours and see how we helped the homeowner with their home comfort problems. If you don't see your neighborhood or your type of home here, please click here to let us know where you live and we'll see if we have a story near you.

Zoom in on your town and click to find ductless installations we've done for your family, friends and neighbors!

Find a case study based on home construction type


From Tudors to Colonials to split-level homes and more, we've installed ductless in all types of single family homes, condos, brownstones and apartments in and around the Boston area.

Click the button below to explore case studies by home construction type:

Single Family Homes by Construction Type

Or, browse our most recent case studies below:

Somerville 2 Family Home Gets Comfy with Ductless

Problem: This 2 family home in Somerville was relying on their radiators and window air conditioners for comfort, but they still had hot and cold spots throughout their main living area.

Click here for the full story.

Somerville Colonial Gets Year 'Round Comfort with Mitsubishi Ductless

Problem: The homeowners of this colonial-style home used steam heat and had no air conditioning. The homeowners were looking for an energy efficient solution to solve problems with hot and cold spots in the home and find a better solution than relying on expensive window air conditioners during hot weather.

Click here for the full story.

Newburyport Cape-Style Homeowners Sleep Better With Ductless

Problem: The Owners of this Cape-style home in Newburyport  were losing sleep over the comfort in their home, in the Winter and Summer. They were tired of relying on window air conditioning units that were a pain to install each year and cost a fortune to run, and they wanted additional comfort through the colder months as well.

Solution: By adding three zones of Mitsubishi ductless heating and air conditioning to the bedrooms, every member of the family will finally be comfortable in the quiet comfort ductless delivers.


Click here for the full story.

Somerville 2 Family Home Gets Comfort Upgrade with Ductless

Problem: The owners of this two family home in Somerville were renovating it to get it ready for rent.They wanted to ensure their new tenants would have the comfort they wanted, year-round and were looking for a comfort upgrade that would be efficient and keep operating costs low in the Winter and Summer.

Solution: The owners added two zones of Mitsubishi Hyper-Heating Ductless to the second floor unit, in the Kitchen and Bedroom, and three zones in the downstairs units, in the living room and two bedrooms. This will ensure that the new tenants in both units will have state of the art comfort year-round, while keeping energy bills low, keeping both the owner and the renters happy!


Click here for the full story.

East Boston Multifamily Home Gets Maximum Comfort with Ductless

Problem: The family needed additional cooling - the window units just weren't cutting it, and they were losing sleep because it was simply too hot.

Solution: Three zones of Mitsubishi ductless air conditioning will keep the Master bedroom, top floor bedroom and kitchen cool and comfortable all year long while saving money on energy bills!


Click here for the full story.

This South Boston Three Family Home Got Cool With Ductless

Problem: The family was looking for a better solution to cool their three family home in South Boston- the window a/c and fans they were using were leaving them sweaty and uncomfortable- and they were expensive to run!

Solution: We installed two zones of Mitsubishi Ductless air conditioning to ensure this family had the year 'round comfort they needed while saving money on energy bills, even on the hottest day of the year!


Click here for the full story.

East Boston Townhome Gets State of the Art Comfort with Ductless

Problem:The owners of this East Boston Townhouse were heating with electric baseboards and had no air conditioning. They were looking for a better heating and cooling solution that would be energy efficient while giving them they comfort they craved.

Click here for the full story.

Boston Brownstone's Third Floor is Finally Comfortable Thanks to Ductless

Problem: The homeowner of this lovely Brownstone had a great hot air gas heating and central air conditioning, but the top floor of the home was still getting too hot during the summer and they were looking for an energy-efficient and cost-effective solution to make the space comfortable at last.

Solution: A Mitsubishi ductless air conditioning system with a wall-mounted cassette will ensure this room stays comfortable every day of the year!


Click here for the full story.

Great  Year 'Round Heating and Cooling for this Falmouth Colonial with Ductless!

Problem: The owners of this lovely colonial style home in Falmouth on Cape Cod wanted better cooling than they were getting from window air conditioners, and wanted additional comfort in colder weather.

Click here for the full story.

Newburyport Multifamily Home Finds Comfort Throughout with Ductless

Problem:This multifamily home in Newburyport needed both heating and cooling solutions throughout, including 2 attic bedrooms, 2 additional bedrooms on the second floor and kitchen- They wanted to be sure to get a cost-effective solution, that wouldn't cost a fortune to operate, regardless of season.

Solution: 5 zones of Mitsubishi ductless heating and cooling will ensure this family gets the comfort they crave every day of the year, while saving money on energy bills.


Click here for the full story.
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