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Avatar for Airco Home Comfort Services LLC
Airco Home Comfort Services LLC
4.7(
33
)
Central A/C - Install - For BusinessCentral A/C - Service or RepairCentral A/C - Service or Repair - For Business+11 more

Serving Nonantum, MA and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"I whole heartedly recommend Airco. Their team was experienced, skillful, friendly and professional throughout the duration of this job, from Joe's first visit to my home to discuss air conditioning options to Derek and Cam's final touches on the duct system. I had complete confidence in them, as well as in Steve, Danny, Frank and Patrick. Additionally, Airco's connections to MassSave and Commerce Bank meant financing and payment options to suit my budget. No more hauling loud and heavy window a.c. units up from the basement. Instead, I am enjoying consistent cooling throughout my home with no noise whatsoever. I am a very happy customer!"
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+4

Response time2 days
1 neighbors recently requested a quote
Recommended by96%of homeowners
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Avatar for Genove Oil & Air Co
Genove Oil & Air Co
4.7(
217
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Nonantum, MA and surrounding areas

Approved

In business since 1977

Free estimates

Emergency services offered

"We have been in our home for a little over a year and thought it best to have our furnace serviced especially since we don't have a detailed history of service. Frankie D showed up 5 minutes early for our appointment which was fantastic. Frankie was quick, clean and gave me a once over on the age and condition of our furnace. We talked about when the next service would be due. I couldn't have asked for a better experience and I am thankful that we now have our go to company for anything furnace related."
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Pics
Pics

+2

Response time12 hrs
Response rate100%
14 neighbors recently requested a quote
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Avatar for Atlantic Heating & Air Conditioning
Atlantic Heating & Air Conditioning
4.1(
153
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Nonantum, MA and surrounding areas

Approved

In business since 1962

Free estimates

Emergency services offered

"We've used Atlantic Heating and Air Conditioning for over 10 years for regular air conditioning maintenance/service and repairs. They also do service/repairs for our heating system. Recently, they provided valuable advice that allowed us to fix a thermostat malfunction on our own, saving us cost of a visit. We've always been satisfied with this company - visits were easy to schedule, staff were knowledgeable, work performed was well done."
Response time3 days
Response rate100%
8 neighbors recently requested a quote
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Avatar for SumZero Energy Systems, LLC
SumZero Energy Systems, LLC
4.4(
23
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Nonantum, MA and surrounding areas

Approved

In business since 2009

Free estimates

Credit card accepted

"SumZero Energy Systems have been excellent in the last several months with supporting the replacement of my air conditioning system in my old condo as well as servicing my furnace. A price comparison with other local companies also prooved SumZero Energy Systems offered the best price. When I purchased a home a few months later, I called them to take a look at my air conditioning system and furnace because I felt as though they had provided such excellent service in the past. It was a no-brainer to ask for consultation regarding the heating and cooling systems in my new home! When I contacted them for assistance or consultation, they are usually quick to respond and provide appointment times had a very convenient window! They have shown up on time to all of the appointments I have had. David S. has always taken the time to explain everything thoroughly and answer all my questions. I highly recommend SumZero Energy Systems!"
Mitsubishi Heat Pump
MITSUbishi Hyper Heat Heat Pump
Wall Unit (GL Model)
'One-Way' Ceiling Cassette
'Floor Mount' Unit

+9

Response time2 days
Response rate88%
16 neighbors recently requested a quote
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Avatar for Green Energy Mechanical
Green Energy Mechanical
4.3(
96
)
Central A/C - Service or RepairDuctless Mini-split A/C - Install or ReplaceCentral Air Cleaner - Repair or Service

Serving Nonantum, MA and surrounding areas

Approved

In business since 2007

Emergency services offered

Warranties offered

"They called back promptly to make an appt,,they called to confirm, they came on time, & were very polite. . They also wore masks & shoe covers, & educated me on taking care of furnace / filters. Perfect"
Before
Space for condenser outside
After
Traditional Dining Room - Tan Cozy Dark Wood Dining Chairs
old steam boiler

+17

62 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for Ken's HVAC Service
Ken's HVAC Service
4.8(
44
)
Central A/C - Service or Repair

Serving Nonantum, MA and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"Ken was extremely helpful and explained everything. He was friendly professional and I would recommend him to anyone that I know who was in need of HVAC services."
Business card
My work
My work
My work
My work

+12

Response time8 hrs
Response rate93%
Recommended by93%of homeowners
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Avatar for Samuel Gutierrez
Samuel Gutierrez
5.0(
6
)
Central A/C - Service or RepairCentral Air Cleaner - Repair or ServiceCentral Humidifier - Install or Replace+1 more

Serving Nonantum, MA and surrounding areas

Approved

In business since 2022

Free estimates

Offers commercial services

"????? I highly recommend Juan David and his team! They installed a complete central air conditioning system in our two-family home, and the entire experience exceeded our expectations. From start to finish, they were professional, efficient, and incredibly knowledgeable. The installation was completed much faster than we expected, and everything was done with great attention to detail. Both units are working perfectly, and we couldn?t be happier with the results. What truly stood out was their kindness, honesty, and dedication to doing quality work. They offered a fair and competitive price with no surprises, and the value we received was outstanding. If you?re looking for a reliable HVAC company that delivers excellent workmanship and outstanding customer service, Juan David and his team are the ones to call. We are extremely satisfied and would absolutely recommend them to anyone looking for a five-star experience. Darron &Cristina"
HVAC
8 neighbors recently requested a quote
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FAQs for air conditioning projects in Nonantum, MA

Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.

Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.

Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.

Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.

Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.

The Nonantum, MA homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.

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