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Find Air conditioning pros in Columbia

American Air Mechanical, LLC
4.2(
121
)
Central A/C - Service or RepairCentral Air Cleaner - Repair or ServiceCentral Humidifier - Repair or Service

Serving Columbia, CT and surrounding areas

Approved

In business since 2004

Free estimates

Customers say: Quality work

"Paul is a highly skilled professional who works on central air condition as well as furnaces. We have used Paul for a few years now for both A/C and furnace inspections and repairs. He is the best!!! Contacts you and follows up timely. Very professional. Reasonably priced and efficient."
8 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Valerie Spencer Interiors LLC
Valerie Spencer Interiors LLC
5.0(
90
)
Window A/C Unit - InstallWindow A/C Unit - Install - For Business

Serving Columbia, CT and surrounding areas

Approved

In business since 2007

Free estimates

Warranties offered

"I can't say enough good things about Brian, who took care of this work for me. He returned my call promptly, listened carefully to what I needed, and was able to go out to my house within a few days to look at the space available for the two needed light fixtures. He then gave me excellent advice on the type of fixtures that would fit, and the exact sizees I needed to order, as well as what locations would work best for connecting them to the existing wiring. Using his advice, I was able to order the fixtures, which he then came out again to install. He obviously has good skills, but he was also prompt, efficient, honest, and very professional. I will not hesitate to contact him again when I need any further work done -- thanks Brian!"
Additional Photos
Additional Photos
Response time1 day
Recommended by97%of homeowners
Avatar for The Builders & Cleaners
The Builders & Cleaners
4.9(
120
)
Central Air Cleaner - Install or ReplaceCentral Air Cleaner - Repair or ServiceWindow A/C Unit - Install+3 more

Serving Columbia, CT and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"i desperately needed gutter cleaning the day before a major storm. I spoke with Dave initially and he worked with me to make it possible and sent out his crew by the afternoon to my house. His crew was so professional and worked very hard to make sure that all the work was done for me and they cleaned up and got rid of all the mess. This company could not have been nicer and helpful. I highly recommend them and am thankful that I found their business."
Dust out from the ductwork
Dust out from the ductwork
Clean vent
Clean vent
Dust in the return

+1813

Response time1 day
Response rate92%
Recommended by87%of homeowners
Neftco Mechanical LLC
5.0(
1
)
Central A/C - Service or Repair - For BusinessCentral Air Cleaner - Repair or Service

Serving Columbia, CT and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

NEFTCO Mechanical Heating and Cooling is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 15 years of experience serving Connecticut and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you!

HVAC!
HVAC!
HVAC!
HVAC!
HVAC!

+10

Recommended by100%of homeowners
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FAQs for air conditioning projects in Columbia, 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 Columbia, CT homeowners’ guide to air conditioning services

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