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Avatar for Metro HVAC Solutions
Metro HVAC Solutions
4.9(
21
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For BusinessCentral Air Cleaner - Repair or Service+1 more

Serving Cornwall, NY and surrounding areas

Approved

In business since 2017

Emergency services offered

Small jobs welcome

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!\n\n

Response time4 hrs
Response rate91%
4 neighbors recently requested a quote
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Avatar for Sync Mechanical, Inc.
Sync Mechanical, Inc.
5.0(
20
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Cornwall, NY and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Hands down recommend Sync Mechanical! They were able to repair my central air unit when 3 other companies told me the only option was to replace the entire system. They showed up time and were affordable. Saved me at least $3,000 by repairing the unit. I will definitely use them for all my heating and cooling needs. Thank you guys so much!"
Heating and air conditioning equipment replacement
Heating and air conditioning equipment replacement
Additional Photos
Additional Photos
Additional Photos

+5

9 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for Hudson Valley HVAC
Hudson Valley HVAC
4.7(
66
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Cornwall, NY and surrounding areas

Approved

In business since 2014

Emergency services offered

Warranties offered

"I wish all businesses were as personable and professional as Hudson Valley HVAC. They have come through for me every time we have ever needed service in our heating or plumbing system. I highly recommend them to anyone who ever needs Air Conditioning, Heating, Plumbing or Water Systems services."
Delarm Install
Ceiling register
Condensing unit
Condensing boiler installation
Condensing boiler installation

+5

Response time7 hrs
Recommended by94%of homeowners
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Avatar for All Bases Covered Mechanical
All Bases Covered Mechanical
4.6(
37
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Cornwall, NY and surrounding areas

Approved

In business since 1995

Free estimates

Warranties offered

"The technicians were very good and solved the problem with my central air conditioning. The next time I have a problem I would get other estimates of the costs involved."
Response time6 hrs
9 neighbors recently requested a quote
Recommended by96%of homeowners
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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 Cornwall, NY and surrounding areas

Approved (Corporate)

In business since 1903

Emergency services offered

Warranties offered

With over 100 years experience, we know how to keep you comfortable, safe and help you save on energy costs. Our local 24/7 customer service and support means automatic heating oil deliveries and our service response is always fast. We never run out of heating oil plus our pricing and payment plans are designed to help you manage your costs all year round. Experience the Petro difference today!

Additional Photos
Additional Photos
Additional Photos
Response time6 days
Response rate100%
18 neighbors recently requested a quote
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Avatar for T. Webber Plumbing, Heating, Air & Electric
T. Webber Plumbing, Heating, Air & Electric
4.0(
204
)
Central A/C - Install

Serving Cornwall, NY and surrounding areas

Approved (Corporate)

In business since 1987

Free estimates

Warranties offered

"They delivered everything they promised. Their crew stayed late to get the job done in one day. They went way above expectations. Enjoying our central air !!!"
Bathroom Remodel
Bathroom Remodel
Bathroom Remodel
Bathroom Remodel
Bathroom Remodel

+1

Response time4 hrs
11 neighbors recently requested a quote
Recommended by90%of homeowners
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Avatar for D Rohde Home Services
D Rohde Home Services
4.6(
471
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+2 more

Serving Cornwall, NY and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"I used D. Rhode Heating, Plumbing and AC for two projects. First was an installation of a new air conditioning and heat pump unit. From beginning to end everyone we dealt with were courteous, knowledgeable and professional. Dan was very helpful thoroughly explaining our options and giving us a fair estimate. The office staff were always friendly and helpful when we called them. Jeff, Dwayne and crew did a great job in the removal and installation of the new unit. They were very respectful and cleaned up thoroughly when the job was completed. The second project was the installation of a new well tank. Jamie was very professional and knowledgeable and also did a great job with the installation and cleanup. I would highly recommend D. Rhode."
Mitsubishi Hyper heat (Low Temp) Multi Head Heat Pump
Additional Photos
Mitsubishi Mini Split
Mitsubishi Mini Split
Additional Photos

+22

Response time11 hrs
Response rate100%
57 neighbors recently requested a quote
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Avatar for Polar Plumbing, Heating, & Air Conditioning
Polar Plumbing, Heating, & Air Conditioning
4.7(
131
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Cornwall, NY and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Very precise, organized , professional and communicative I highly recommend this company Fair pricing . Got a great deal on heating and central air conditioning. D. Mallon"
Jared and Our New Polar Partner
John and Mike After Picture
BEFORE - Leaking Under the Sink
AFTER - Fixed by your Polar Professionals
Indoor Face Unit 2

+8

Response time12 hrs
Response rate97%
258 neighbors recently requested a quote
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Avatar for NextGen Energy
NextGen Energy
5.0(
9
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Cornwall, NY and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"Installed a new condense with new air handler - called them in an emergency and they were able to knock it out in a day"
Navien Boiler
Air Handler
Mini-Split
5 neighbors recently requested a quote
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Avatar for Parker Plumbing & Electric
Parker Plumbing & Electric
4.9(
38
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Cornwall, NY and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

please call us with all your plumbing and hvac needs or repairs. We are a service company and we will guarantee our service to your home. Please call

Recommended by100%of homeowners
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Showing 1-10 of 328

FAQs for air conditioning projects in Cornwall, NY

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 Cornwall, NY homeowners’ guide to air conditioning services

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

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