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Find Air conditioning pros in Jefferson

Avatar for NV Heating and Air Conditioning
NV Heating and Air Conditioning
4.7(
234
)

Serving Jefferson, MA and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"My experience with NV Heating and Air Conditioning was incredible. Keith the owner came over to assess the job and took the time to explain how the system worked and went over of the various options. He got back to me in a timely manner with a fair price. He assured me the install will be done neating and without incident and I would be happy. They did not disappoint! I was extremely happy with the results. Ron the project manager was a down the earth guy that was professional and willing to explain things to me as the job was progressing. The 2 young workers Richard and Nathan were both awesome. They were both good workers that got the job done without issue. I really enjoyed speaking to them and they were helpful in explaining things to me when I had questions. From the office Manager "Dawn" down to the work crew NV Heating and air Conditioning was top notch. They had it all with a fair price and high quality installation. Add to that Keith the Owner is a Veteran!"
New 275 gallon oil tank
Williamson oil fired warm air furnace
Fujitsu wall mounted unit
Bosch HVAC system
Fujitsu ceiling cassette

+6

Response time2 days
16 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for DG Heating & Air Conditioning, Inc.
DG Heating & Air Conditioning, Inc.
4.5(
29
)

Serving Jefferson, MA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: Quality work

"Derek was quick to respond to my request for a quote and had our mini split installed within a week. He was friendly, professional, respectful of our property and meticulous. I highly recommend hiring DH Heating and Air Conditioning, you won’t regret it!!"
Response time1 day
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Conger's Heating & Cooling, Home Heating Oil Delivery & HVAC Services
Conger's Heating & Cooling, Home Heating Oil Delivery & HVAC Services
4.9(
24
)

Serving Jefferson, MA and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Great family run business. Installed a Mitsubishi mini-split in our detached garage. I needed to reschedule our first install day and they were very flexible. Install day came, unit was installed as planned, area was cleaned up like they were never there. Would also recommend using their electrician. Very fair price and great work. Value for your money can’t be beat. Highly recommend Shawn Conger and his wife. Great team!"
 Boiler 1
 Boiler 2
 Boiler 3
 Boiler 4
 Buderus

+10

Response time4 hrs
2 neighbors recently requested a quote
Recommended by73%of homeowners
Avatar for All HVAC
All HVAC
5.0(
17
)

Serving Jefferson, MA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Believing that furnace and central air conditioning systems have to be replaced, I asked Nick for an estimate. When he arrived, he diagnosed the problem and fixed it. He saved me a large amount of money. Easy to talk to, explained the issues in understandable terms. He came the same day I called. But if I have another problem, I would not mind waiting because I am confident he will do the job."
Response time6 hrs
9 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Landry Mechanical, Inc.- HVAC
Landry Mechanical, Inc.- HVAC
4.5(
106
)

Serving Jefferson, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Emergency services offered

Warranties offered

"Our central air unit died during the hottest days of the year so far. It is a new unit . We called a few places desperate for service and were told it would be a few weeks for most companies to make it out. Called Landrys after finding them on google. A woman called me back less than 20 minutes after first phone call and said they would be out today. Tyler came and was great. Fixed our unit and saved our life! We will be using them in the future for sure. 5 stars for service and their customer service is without a doubt 5 stars as well."
Mitsubishi Ductless
Furnace install
Water filtration
Stretching out during a hvac install
New heat pump and furnace

+50

Response time11 hrs
Response rate97%
31 neighbors recently requested a quote
KERO HVAC
4.6(
32
)

Serving Jefferson, MA and surrounding areas

Approved

In business since 2021

Free estimates

Customers say: Quick response

"We had a major problem with our A/C and we contacted Kero. We were very satisfied with the service quality, response, honesty, punctuality and cost. A few months later, we contacted him for our Heating system maintenance. And as usual he did a very professional service. We highly recommend Kero for any HVAC services you might need."
Response time6 hrs
Response rate94%
Recommended by90%of homeowners
Avatar for ENDLESS ENERGY NEW ENGLAND, INC.
ENDLESS ENERGY NEW ENGLAND, INC.
4.7(
20
)

Serving Jefferson, 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
7 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for Turkey Heating and Cooling, Inc.
Turkey Heating and Cooling, Inc.
4.9(
22
)

Serving Jefferson, MA and surrounding areas

Approved

In business since 2015

Warranties offered

Small jobs welcome

"Professional HVAC is honest , very professional as well. Ronald showed up on time and he was able to discover the issue with my mini spilt and found the where is the leak. I highly recommended them."
HVAC
Response time9 hrs
13 neighbors recently requested a quote
Recommended by62%of homeowners
Avatar for Rodenhiser Home Services
Rodenhiser Home Services
4.4(
521
)

Serving Jefferson, MA and surrounding areas

Approved

In business since 1928

Emergency services offered

Warranties offered

"From start to finish we have had a great experience with Rodenhiser. Rick Picard came out to look at our system and provided a few estimates for different options while on site. We needed most of our 35 year old central air conditioning system replaced. The communication from the company was impressive. We always knew who was coming and when. They helped with the initial MassSave paperwork and even submitted all of the rebate paperwork for us when the install was complete. Good luck finding another company that will do the same. Our installers (Brian Heno and Dylan E.) arrived on time every day. They were professional, kept us updated on their progress and cleaned up daily. Two very hard working guys. They did a great job with the install. It looks and performs fantastic. We could not be happier with the system now that it is installed. We chose the correct company to work with. This is our second time having Rodenhiser complete a major install at our house. We had them install a furnace several years ago. I highly recommend them for your HVAC needs. Thank you."
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47 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for O'Hara Heating And Cooling
O'Hara Heating And Cooling
4.9(
9
)

Serving Jefferson, MA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

OHara Heating And Cooling is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Response time1 day
Recommended by100%of homeowners
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Showing 1-10 of 242

FAQs for air conditioning projects in Jefferson, 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 Jefferson, MA homeowners’ guide to air conditioning services

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