Top-rated air conditioning pros.

Get matched with top air conditioning pros in Ayer, MA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Air conditioning pros in Ayer

Avatar for NETR Inc
NETR Inc
4.7(
78
)

Serving Ayer, MA and surrounding areas

Approved (Corporate)

In business since 1989

Free estimates

Emergency services offered

"Salesman was more than helpful, installers came on time, did the work, cleaned up after themselves and took the time to demonstrate the system. it was a positive experience from start to finish, Now I can enjoy the cool air!"
SOUTH END CONDO RECEIVES MITSUBISHI DUCTLESS SYSTEM
SOUTH END CONDO RECEIVES MITSUBISHI DUCTLESS SYSTEM
SOUTH END CONDO RECEIVES MITSUBISHI DUCTLESS SYSTEM
Additional Photos
Additional Photos

+9

31 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Airco Home Comfort Services LLC
Airco Home Comfort Services LLC
4.7(
33
)

Serving Ayer, 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!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+4

Response time2 days
5 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Sila Heating, Cooling, Plumbing and Electrical
Sila Heating, Cooling, Plumbing and Electrical
4.5(
5,397
)

Serving Ayer, MA and surrounding areas

Approved (Corporate)

In business since 1989

Free estimates

Emergency services offered

"We are overall very happy with the project. Sila had to install a high velocity air conditioning system in very limited space. They provided a timely quote and showed up and did the work professionally and on time. There were a few hiccups, such as the installation of the hatch to the attic space, but Sila’s carpenter agreed to fix the problem at no additional cost to us, so I consider that to be excellent service. After two weeks, the system has been performing exactly as we hoped."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

Response time2 days
63 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Net Zero Heating and Air Conditioning LLC
Net Zero Heating and Air Conditioning LLC
5.0(
8
)

Serving Ayer, MA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

At Net Zero we have a strong focus on installing and servicing high efficiency heat pump systems. We're proud to be a Mitsubishi Elite Diamond Dealer and a Bryant Factory Authorized Dealer and our Technicians are all NATE certified. Heating, air conditioning and plumbing installations and service - Water Heaters - Heat Pump Water Heaters

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+40

4 neighbors recently requested a quote
Recommended by25%of homeowners
Avatar for Emerald HVAC LLC
Emerald HVAC LLC
5.0(
14
)

Serving Ayer, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Small jobs welcome

"My central AC unit has been broken for several years. intermittently working during hot summers. I've had several HVAC companies come to diagnose and all of them told me different things: replace the whole system, new lines, etc. potentially costing tens of thousands of dollars. So I decided to troubleshoot by myself and pinpointed the issue: the filter dryer needed to be replaced. No company wanted to do this small job. I called Emerald HVAC and told them about my issue, they sent in José, who diagnosed the issue to be what I said. He replaced the filter dryer and the AC unit works perfectly now after several years! In short, Emerald HVAC will be my first choice for any HVAC work in the future. They are honest, professional, and reasonably priced. I recommend them without reservation!"
Response time1 day
Response rate91%
42 neighbors recently requested a quote
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 Ayer, MA and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

What good is quality if it is not affordable? At Conger's Heating & Cooling, Inc., we specialize in all your heating and cooling needs. We are committed to \ndelivering Home Heating Oil & HVAC installations at the lowest possible price to every customer in our community. Call today for your current oil price.

 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 Landry Mechanical, Inc.- HVAC
Landry Mechanical, Inc.- HVAC
4.5(
107
)

Serving Ayer, 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%
35 neighbors recently requested a quote
Avatar for ENDLESS ENERGY NEW ENGLAND, INC.
ENDLESS ENERGY NEW ENGLAND, INC.
4.7(
20
)

Serving Ayer, 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
18 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for Elemental Heating & Cooling
Elemental Heating & Cooling
5.0(
12
)

Serving Ayer, MA and surrounding areas

Approved

In business since 2020

Warranties offered

Offers commercial services

At Elemental Heating & Cooling, we're excited to earn your business! Locally owned and operated, we are known in the area for our prompt service and attention to detail. Customer satisfaction is always our primary concern, so be sure to give us a call today!

Mini Split Run Up To Finished Attic
Mini Split Zone
Mini Split Outdoor Unit
Response time6 hrs
1 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Rodenhiser Home Services
Rodenhiser Home Services
4.4(
521
)

Serving Ayer, MA and surrounding areas

Approved

In business since 1928

Emergency services offered

Warranties offered

"Due to the pandemic it took a while for the park to come in, but after the park came in they were able to fix it the same day. They were terrific and very helpful. They provided portable AC units during the time when our AC was down. This was very good of the company to do."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
46 neighbors recently requested a quote
Recommended by86%of homeowners
...
Showing 1-10 of 309

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

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