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Find Air conditioning pros in Dover

Avatar for Freedom Air Mechanical
Freedom Air Mechanical
4.8(
14
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Dover, NH and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Repairs were excellent and thorough "even well documented". The tech found units low on coolant. He identified and repaired multiple refrigerant leak points. I have dealt with many HVAC contractors over the years and Freedom Air Mechanical is one of the best. I highly recommend."
Additional Photos
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+36

Response time1 day
3 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Kevin Russo HVAC
Kevin Russo HVAC
4.9(
70
)
Central A/C - Service or RepairCentral Air Cleaner - Repair or ServiceCentral Humidifier - Repair or Service

Serving Dover, NH and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

"Kevin responded to my phone call asking for a quote. He arrived for our appointment on time. He was friendly, informative, and efficient. Kevin will be my first call the next time I have an HVAC problem or project."
HVAC INSTALLS
Samsung
HVAC INSTALLS
York  condenser
HVAC INSTALLS

+2

Response time2 hrs
Response rate88%
Recommended by98%of homeowners
Avatar for Angell Electric
Angell Electric
5.0(
29
)
Window A/C Unit - InstallWindow A/C Unit - Install - For BusinessWindow A/C Unit - Service or Relocate+1 more

Serving Dover, NH and surrounding areas

Approved

In business since 2019

Credit card accepted

Offers commercial services

"We had an absolutely amazing experience with this father-and-son team! They own and operate their electrical company full time and also do furniture assembly, and we could not have been happier with the job they did for us. They arrived at 9:30 in the morning and stayed until around 6:30 that evening, making sure every single piece of furniture was completely assembled before they left. Everything came out beautifully, and they were incredibly hardworking, efficient, careful, and thorough. On top of that, they were both so friendly, personable, and pleasant to have around all day. Their pricing was also fantastic — by far the best of all the quotes we received. We were so impressed with their work and felt they deserved even more than what they had quoted us, so we were happy to tip them extra. We would 100% recommend them to anyone looking for reliable, skilled, hardworking people who genuinely care about doing a great job. We will be keeping their number for any future projects!"
Project Photos
1 neighbors recently requested a quote
Recommended by18%of homeowners
Avatar for ARETE ELECTRIC
ARETE ELECTRIC
5.0(
20
)
Ductless Mini-split A/C - Install or Replace

Serving Dover, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2012

Free estimates

Credit card accepted

"Tom and his crew do great work very competitively priced very professional. I have used Tom and his company on many of projects. Now with HVAC it eliminates the need to source out another sub."
Response time2 days
1 neighbors recently requested a quote
Recommended by5%of homeowners
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FAQs for air conditioning projects in Dover, 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 Dover, NH homeowners’ guide to air conditioning services

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