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

Avatar for Onofreo Home Comfort Systems, LLC
Onofreo Home Comfort Systems, LLC
4.9(
38
)
Ductless Mini-split A/C - Install or Replace

Serving Monroe, CT and surrounding areas

Approved

In business since 2018

Free estimates

Small jobs welcome

"The salesman came to our home & was very professional & knowledgeable. We got several quotes but decided to go with this company because of the knowledge of the salesman. The technicians came to install the air conditioning on time, wearing masks, and did a fantastic job. There were no problems whatsoever with the install. They also were very neat & cleaned up after they were done. I definitely would recommend this company!"
Gas Furance
Ductless Heat Pump Installation
New Navien System
Old Oil Furance
Ductless Heat Pump Installation

+27

Response time1 day
Response rate86%
70 neighbors recently requested a quote
Avatar for Petro Home Services
Petro Home Services
4.4(
1,600
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Monroe, CT and surrounding areas

Approved (Corporate)

In business since 1903

Emergency services offered

Warranties offered

"I have a service contract with Petro. They came out to fix a leak on my heater. Service person came out on time, fixed the problem and cleaned up so you would never know he was even there. Very pleasant experience all the way through."
Additional Photos
Additional Photos
Additional Photos
Response time6 days
Response rate100%
18 neighbors recently requested a quote
Avatar for Protech Heating & Air Conditioning
Protech Heating & Air Conditioning
5.0(
16
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Monroe, CT and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"Very knowledgeable and professional. When speaking to RIcardo I could tell he knows his field. He is effect, efficient, knowledgeable, professional and honest. He doesn’t tell you this is your only option. He gives you options to solve your issues and lets you know this is a short term solutions or this is the long term solution. He honest with what you can do with your budget if your on a budget. We have used Protech heating & Air Conditioning for some major work in the past, and they have always added value and responded very professionally."
New construction heat & air conditioning
Air conditioning
Commercial roofing top unit
Mini split residential
Propane gas tank installed comercial

+4

Response time5 hrs
Response rate100%
11 neighbors recently requested a quote
Avatar for H L Bowman
H L Bowman
4.6(
429
)
Central A/C - InstallCentral A/C - Service or RepairCentral Air Cleaner - Install or Replace+1 more

Serving Monroe, CT 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."
Additional Photos
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+6

482 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Kelley's Heating & Cooling, LLC
Kelley's Heating & Cooling, LLC
4.9(
11
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Install - For Business+6 more

Serving Monroe, CT and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

"We received excellent service from Kelleyâ s Heating & Cooling when our air handler was preventing our heat from coming on. Ryan was prompt, friendly, knowledgeable, and reassuring. He assessed and repaired the system in a short amount of timeâ we highly recommend Kelleyâ s Heating and Cooling. Top-notch service."
Response time1 day
13 neighbors recently requested a quote
Recommended by72%of homeowners
Avatar for Northeast Heating & Cooling
Northeast Heating & Cooling
5.0(
8
)
Central A/C - InstallCentral Humidifier - Install or ReplaceDuctless Mini-split A/C - Install or Replace

Serving Monroe, CT and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"I hired northeast heating and cooling to replace my aging heating A/C system. This was a fairly large job, seeing it was a Multi floor house with two independent systems running both upstairs and the main floor. They also explained to me how adding a heat pump system to the house would help make heating my house less expensive during fall and spring. They replaced the entire upstairs duct work and reconfigured the entire house to run balanced and efficient. I couldn't be any happier with the work that was done in the house I would highly recommend them. Thank you Guy's for your hard work and dedication to get this system working amazing!"
Trane Furnace
Exposed Spiral Duct
Response time6 hrs
Response rate100%
5 neighbors recently requested a quote
Avatar for Chickos Home Comfort
Chickos Home Comfort
5.0(
5
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Monroe, CT and surrounding areas

Approved

In business since 2025

Credit card accepted

Offers commercial services

Chickos Home Comfort has become a staple of professionalism and quality work in Fairfield & New Haven area for years. With over 20 years experience, there is no job too large or small for our crew. Call today to schedule an appointment!

Chickos Home Comfort
6 neighbors recently requested a quote
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FAQs for air conditioning projects in Monroe, CT

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 Monroe, CT homeowners’ guide to air conditioning services

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