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Top-Rated Air conditioning pros in Plympton - Updated Nov 2026

Rick Maloney Heating & Cooling
4.7(
124
)
Central A/C - Service or Repair

Serving Plympton, MA and surrounding areas

Approved

In business since 1999

Free estimates

Customers say: Quick response

"Review by Claudette L. in Fall River, MA Project: Removed Whirlpool central A/C & Installed Concord central air conditioning condenser. Rick was excellent, pleasant, skilled & responded quickly after my initial request. He was very proficient, addressed all of my questions & concerns. He also managed to schedule my work quickly to complete the job & be sure that my new A/C was working properly before his departure. He was also reasonable with his original quote for his services & did not change this price upon completion. I will absolutely call Rick for any future heating or air conditioning issues. & would highly recommend Rick Maloney heating & cooling to friends & family."
Response time4 hrs
1 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Local HVAC
Local HVAC
4.9(
52
)
Ductless Mini-split A/C - Install or Replace

Serving Plympton, MA and surrounding areas

Approved

In business since 2018

Free estimates

Customers say: Quick response

"Matt was prompt and professional and the work he performed was impeccable. We had wall-mounted AC/Heating units installed in a traditional seaside cottage, and he was meticulous about finding non-intrusive ways to run plumbing/electric. He even upgraded to stainless steel hardware considering our corrosive sea air environment. I will recommend him again and again."
new on demand boiler
Response time7 hrs
28 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Venture Mechanical
Venture Mechanical
5.0(
18
)
Central A/C - InstallCentral Humidifier - Install or ReplaceDuctless Mini-split A/C - Install or Replace

Serving Plympton, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"Dylan is very reliable and knowledgeable. He has provided plumbing services many times for us and I wouldn't use anyone but him. The service is exceptional and pricing is extremely fair. I highly recommend Venture Mechanical for any plumbing, heating, or air conditioning needs that you may have."
Steam Boiler Install
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+27

Response time2 days
Response rate100%
4 neighbors recently requested a quote
Avatar for ENDLESS ENERGY NEW ENGLAND, INC.
ENDLESS ENERGY NEW ENGLAND, INC.
4.7(
20
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Service or Repair+4 more

Serving Plympton, MA and surrounding areas

Approved

In business since 1980

Free estimates

Emergency services offered

Endless Energy is a trusted local HVAC and Plumbing Company servicing the majority of the state of Massachusetts with office in Marlborough, Needham, and Randolph. Specializing in Heat Pumps, Central AC, Furnaces, and Boilers, we have Master Plumbers, Electricians, and HVAC Technicians all under one roof reducing your need to find multiple contractors! We are also a Mass Save partner and can conduct your no cost Mass Save Home Energy Assessment and install any recommended insulation.\n\nWe can help you with: \n*Heating Repairs, Installation, & Service\n*AC Repairs, Installation, & Service\n*Plumbing Repairs, Installation & Service\n*Water Heater Replacement & Service\n*Indoor Air Quality Solutions\n*Ductwork & Line Set Solutions\n*Electrical Panel Upgrades and Replacement\n*Insulation \n*No Cost Home Energy Assessments\n\nA Mass Save certified contractor with an A+BBB rating. All of our skilled technicians undergo an extensive background and drug screening prior to being hired to our team!

Holliston Heat Pump
Boston Heat Pump
Natick Ducted System
226 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for H L Bowman
H L Bowman
4.6(
430
)
Central A/C - InstallCentral A/C - Service or RepairCentral Air Cleaner - Install or Replace+1 more

Serving Plympton, MA and surrounding areas

Approved (Corporate)

In business since 1946

Free estimates

Emergency services offered

"H L Bowman is by far one of the best service companies that I have dealt with. I got a call that the technician was on the way to my house. George showed up and got right to work. Found my problem and explained to me the best way to fix my issue. They did not try to sell me on any pricier fixes. George showed me what he could offer and explained what would be my best option. He was knowledgeable, informative, and explained everything so that I would understand what was going on. I am definitely going to be using them for all my heating and air conditioning needs. Top notch company. Would recommend to anyone needing this kind of help."
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+6

461 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for RLF Heating & Cooling Inc.
RLF Heating & Cooling Inc.
4.9(
10
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Plympton, MA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Bob did a new mini split install for me and I couldn't be happier with the work. He was professional, timely, and had excellent communication. He was also very knowledgeable and made some great recommendations for the project. I'd recommend him to anyone looking for HVAC work."
Response time6 hrs
Response rate97%
6 neighbors recently requested a quote
Avatar for 1st Call Emergency Heating & Cooling
1st Call Emergency Heating & Cooling
5.0(
12
)
Central A/C - Service or Repair

Serving Plympton, MA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"I could not recommend Mike enough. He cleaned our oil furnace, conducted CO safety tests, diagnosed an issue with one of our old radiators, and installed a smart thermostat, all for a fair price. He's friendly, diligent, prompt, communicative, and careful. We also appreciated the extremely detailed documentation he put together at the end of the project to cover the costs and work done. While we had quite a bit of unexpected work (which comes with living in an older house), Mike was transparent about what was urgent versus what could wait for later projects. It never felt like he was upselling us. Will continue to use Mike for any of our home heating needs."
Boiler install
Boiler install
Same Day
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FAQs for air conditioning projects in Plympton, 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 Plympton, MA homeowners’ guide to air conditioning services

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