Top-rated air conditioning pros.

Get matched with top air conditioning pros in Keene, NH

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Air conditioning pros in Keene

Avatar for McGinley & Sons
McGinley & Sons
3.8(
24
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Service or Repair+4 more

Serving Keene, NH and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"I contacted McGinley & Sons after searching Angie's List for highly rated HVAC specialists. The owner, William McGinley came down quickly to give us an estimate. We were quoted a reasonable price  and booked an appointment to do the job two weeks later. Bill arrived in a timely manner with two other workers and completeted the job in a few hours. He also submitted on our behalf the warranty registration to Goodman Air Conditioning and Heating. We are very pleased with the job they did and would highly recommend McGinley & Sons."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+5

41 neighbors recently requested a quote
Recommended by56%of homeowners
Jeff Love
5.0(
27
)
Window A/C Unit - Service or Relocate

Serving Keene, NH and surrounding areas

Approved

Super Service Award Winner

In business since 1985

Free estimates

Small jobs welcome

"Jeff was terrific to work with - he came up with a cost-effective, green solution to my falling-over fence that looks great. He worked through rain and colder rain and got the project done efficiently. I will definitely hire him again for other projects."
Response time1 day
Response rate94%
22 neighbors recently requested a quote
Avatar for McGinley & Sons Heating & Air Conditioning
McGinley & Sons Heating & Air Conditioning
3.8(
244
)
Central A/C - InstallCentral Air Cleaner - Install or ReplaceCentral Humidifier - Install or Replace+1 more

Serving Keene, NH and surrounding areas

In business since 2006

Free estimates

Emergency services offered

"Very professional. But could have cleaned up after themselves a little better in the attic. I had a small issue and they got back to me right away and took care of it. I would highly recommend McGinley and Sons heating and Air Conditioning to anyone looking to install central air."
Buderus Boiler/Indirect
 Air Handler M.Bedroom
 Air Handler Main floor
Response time1 day
Recommended by84%of homeowners
...
Showing 1-10 of 65

FAQs for air conditioning projects in Keene, NH

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 Keene, NH homeowners’ guide to air conditioning services

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