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Top-Rated Air conditioning pros in North Westchester - Updated Nov 2026

Avatar for MULL BROTHERS INC
MULL BROTHERS INC
4.7(
118
)
Central A/C - InstallCentral A/C - Service or RepairCentral Air Cleaner - Install or Replace+4 more

Serving North Westchester, CT and surrounding areas

Approved

In business since 1945

Free estimates

Emergency services offered

"I keep coming back because I am always very pleased with their service and honest advice. They stand behind their work and will respond. even months later, if an issue or a question arises. Tom Mull's staff are very professional, a pleasure to work with and responsive to the CDC/Covid precautions."
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Response time2 days
1 neighbors recently requested a quote
Recommended by95%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 North Westchester, CT and surrounding areas

Approved

In business since 2007

Free estimates

Warranties offered

Valerie Spencer Interiors LLC: Precision Window Treatment Installation and Handyman Service. Blinds,shades and interior shutter measurement,installation,repairs and sales. Small job specialty handyman service. Certified professional installer for Hunter Douglas, Kirsch/Levelor as well as Somfy motorized products. Former preferred installer for JC Penney custom decorating. Experience with all product lines including Bali, Graber, Smith&Noble and 3Day blinds. Independent, work with decorators, work rooms and fabricators as well as the general public. Experience with both residential and commercial window covering installs and can measure for and install all varieties of hard and soft window treatments including custom cornices and valences, shades/blinds, drapery treatments and shutters. Also repair many window treatments including corded,cordless and motorized. Detail oriented former engineer with excellent references from customers attesting to the quality and integrity of my service. Handyman small job specialist including: flat screen tv, mirror and picture hanging. Lighting including ceiling fans and lamp repairs. Electrical,plumbing and appliance repair. Furniture assembly and setup,doors and locks and more.\n\nAngiesList Super Service Award since 2016. Fully insured. Rates are very competitive. Will travel to jobs anywhere in the state. If you're looking for a reliable, top notch measurement, installation and repair person look no further. Please call us today to schedule your appointment - (860) 638-8562.

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Response time1 day
1 neighbors recently requested a quote
Recommended by97%of homeowners
Neftco Mechanical LLC
5.0(
1
)
Central A/C - Service or Repair - For BusinessCentral Air Cleaner - Repair or Service

Serving North Westchester, 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!

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+10

Recommended by100%of homeowners
Avatar for SuperiorAir Duct Cleaning
SuperiorAir Duct Cleaning
4.5(
573
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving North Westchester, CT and surrounding areas

In business since 2004

Free estimates

Emergency services offered

"I chose them because they had the highest number ( and score) of reviews, but after the service was provided I believe those reviews were fabricated. I am a new home owner and decided to try your services. I did not know much about duct or vent cleaning but after what I saw yesterday I decided to do some research online and that is when I realized I did not receive the services I thought I was paying for. Only 1 technician came with a small shop vacuum and a brush, and he was not able to do most of the work because. 1. We had Fibreglass ducts and he said his equipment was not suitable to clean this type of duct and that it would damage it. So he only "vacuumed" the area that his arms could get to, and did not examine the vent for damage or recommend any way to clean or fix the fiberglass. 2. He did not want to take the vent covers off the ceiling because he said he did not want to damage the sheetrock, so I'm not sure how he cleaned them. I think he only sprayed air into and around the vent 3. He didn't have any air filters with him, so I had to go out and try to buy them. They did not have the size I needed so I spent 1 hr driving around looking for them and could not see what he was doing at home. 4. They did not seal any of the vents nor did they have a negative pressure machine. He did not hook up to the main vent and told me he accessed it with a brush through an intake, which means that they did not fully take out all the dust from the main feeder. At first I was ok with his explanation, fine but then after doing research I realized that all he did was stick a brush in the room vent but did not seal the whole system, nor did he take off and clean the main duct. 5. He said he cleaned the dryer vent from Inside and Outside but I did not see any signs of him going outside as it was raining and he would have had to get the machine wet. 6. He had no other equipment other than a shop vacuum with a 4 inch hose. I'm not sure how deep he was able to get with that into the dryer vent. I really feel as if the work performed was not done correctly, and my ignorance was partly to blame. This company certainly did not have the right equipment to do the job and they didn't even use the correct procedure to seal the system to create a vacuum. This was definitely more of a $300 dollar job at most and not $600 dollars like they charged me."
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+43

Recommended by87%of homeowners
Avatar for HARP Home Services LLC
HARP Home Services LLC
4.5(
488
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving North Westchester, CT and surrounding areas

In business since 1992

Free estimates

Emergency services offered

"The technician came out and inspected the air conditioning system. He made recommendations as to what needed to be replaced. Since our system is quite old, he also recommended that perhaps our system should be replaced instead of sinking money into part replacement. The price to replace the two parts that need to be replaced was quite high: $254 to replace the capacitor and $282 to replace the contactor, so we decided not to proceed with their replacement at this time."
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+9

Recommended by93%of homeowners
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FAQs for air conditioning projects in North Westchester, 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 North Westchester, CT homeowners’ guide to air conditioning services

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