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Find Air conditioning pros in Hillsborough

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 Hillsborough, NH and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Bill was willing to install a heat pump system that I purchased, even though his default was Bosch. His son and helper did the install over two days. It was getting late when they finished and the unit worked, although it whistled. I let Bill McGinley know but couldn't get them to come out to resolve the problem for over a week. Bill figured out that air was being sucked in between the top bottom front panels on the ACIQ central unit and did a workaround -- taping over it. The manufacturer ACIQ was no help in acknowledging that there was a problem with their product. I made a mistake paying on the basis of the quote rather then requiring an invoice. When I tried to apply for the NHSaves rebate, they wanted an invoice. Bill was not very responsive in sending me the invoice. He did when I told him NHSaves would be contacting him. But he was very accommodating in doing the work i wanted done instead of doing what he was used to doing."
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+5

23 neighbors recently requested a quote
Recommended by56%of homeowners
Avatar for Total Climate Control
Total Climate Control
3.4(
194
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Hillsborough, NH and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"I hired TCC three weeks ago to install a heat pump mini-split systems for my 4 BR home. Their quote was competitive, their install went as planned, and the technicians were super knowledgeable and worked hard to do it right. I am thrilled with the results. I have recommended them to family already and TCC will get more business."
Central AC
New Gas boiler
All new hydronics
All new hydronics
28 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for East Coast Plumbing And Heating LLC
East Coast Plumbing And Heating LLC
5.0(
6
)
Central Humidifier - Install or Replace

Serving Hillsborough, NH and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"East Coast Plumbing and Heating provided us with a great service on a big job of replacing our 30 years old furnace. Dylan was very accommodating and explained the process in a great detail. His estimate for the job was honest and fair. Dylan and his crew did the job in one day and did an excellent work for a reasonable price. We are very happy with this company and we will work with them in the future. I highly recommend East Coast Plumbing and Heating."
12 neighbors recently requested a quote
Avatar for ADM Hauling and Excavation LLC
ADM Hauling and Excavation LLC
5.0(
4
)
Outdoor Mist Cooling System - InstallOutdoor Mist Cooling System - Service or Repair

Serving Hillsborough, NH and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"-Communication exceptional; emails answered in a timely fashion -Estimate/charge was very fair in today's market -Arrived on time and started work immediately -Tree growth in field was cut as asked; a job well done I am very pleased with the completed job and would not hesitate to call ADM Hauling and Excavation again. Highly recommend!"
31 neighbors recently requested a quote
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FAQs for air conditioning projects in Hillsborough, 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 Hillsborough, NH homeowners’ guide to air conditioning services

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