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Find Air conditioning pros in Danbury

Avatar for MSD Heating & Cooling
MSD Heating & Cooling
4.9(
74
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Danbury, CT and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"He came on time and told me that I could run a new thermostat wire myself. He gave me detailed instructions to run a new wire. He said he would not charge me any if he didn’t need to perform any work, and he didn’t charge me a penny for coming out to my house. I bought the new wires, hooked it up and now my new thermostat is working!! Saved me hundreds. Very good and honest man, highly recommended."
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+1

3 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for All Weather Heating & Cooling
All Weather Heating & Cooling
4.6(
68
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Install - For Business+12 more

Serving Danbury, CT and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"I was very happy with my service call today! The repairman, Scott, was knowledgeable and pleasant and wore a mask and gloves throughout., so I felt safe, despite the pandemic. He serviced both of my central air systems and diagnosed the problem with the malfunctioning one and fixed it. By the time he left my house was already a much more pleasant place to be!"
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+13

Response time3 days
14 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Petro Home Services
Petro Home Services
4.3(
103
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Danbury, CT and surrounding areas

Approved (Corporate)

In business since 1903

Emergency services offered

Warranties offered

"There was a snag at the beginning when they realized, after beginning to dig, that the AC unit was on top of the oil tank and they'd have to call someone in to move it before digging could continue. That delayed things a few days, but thereafter they did a good job of digging and were very careful with our trees. They also took care not to ruin the lawn with the machinery. The new tank and heater were quickly put in the basement with no problems."
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Response time6 days
Response rate100%
17 neighbors recently requested a quote
Avatar for Kelley's Heating & Cooling, LLC
Kelley's Heating & Cooling, LLC
4.9(
11
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+6 more

Serving Danbury, 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
15 neighbors recently requested a quote
Recommended by72%of homeowners
Avatar for All Around Mechanical Services, Inc.
All Around Mechanical Services, Inc.
4.6(
30
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Danbury, CT and surrounding areas

Approved

In business since 2011

Free estimates

Credit card accepted

"I called in the early evening and David called me back within 5 minutes. I explained the problem with my central AC not working and he was here the next morning. David diagnosed the problem and gave me a very fair price for the repair. He had the part on his truck and had the AC running again within 45 minutes of his arrival. David seems to be one who is genuinely pleased to help you. He was very prompt with his arrival time and extremely courteous. He definitely has a new customer for AC and plumbing work."
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Hillcrest Fuel, Inc.
Hillcrest Fuel, Inc.
4.6(
75
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Danbury, CT and surrounding areas

Approved

In business since 1938

Free estimates

Emergency services offered

"Very impressed with Hillcrest, fair price and excellent installation of a new heating and air conditioning system. If your looking for a superb contractor, with fast and efficient service, do yourself a favor and contact this company."
Fujitsu Heat A/C Heat Pump
American Standard Air Conditioning
95% Alpine Boiler Nat Gas
Burnham X2 Gas Boiler
Burnham X2 Gas Boiler

+1

Response time1 day
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Schede Plumbing & Heating
Schede Plumbing & Heating
4.2(
97
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Install - For Business+12 more

Serving Danbury, CT and surrounding areas

Approved

In business since 1922

Free estimates

Emergency services offered

"We used Schede to replace our central air conditioner. Overall, we are satisfied with the new system and the price but the customer service was not satisfying. I think they did everything we needed in terms of the mechanical work. But they should better train their office help. After we agreed on the installation date, I asked what time the crew would arrive that morning. They gave a vague answer so I asked again the next day. But they arrived two hours later than expected. After they were done, we discovered that we needed a minor adjustment and scheduled a time for them to come. An hour after they were due, I called and was told they were not coming that day. The next day was the same ? I called after they were overdue and was told they were not coming that day. They finally came the third day. The technician solved the problem and was apologetic. But it was quite frustrating that they did not come as scheduled and did not initiate the call to say they would be late or there was a problem."
Response time7 hrs
Response rate100%
11 neighbors recently requested a quote
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FAQs for air conditioning projects in Danbury, 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 Danbury, CT homeowners’ guide to air conditioning services

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