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TRUSTED BY BETHLEHEM, NH HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon11
    Verified heating and air conditioning services reviews

Verified Reviews for Heating And Air Conditioning Service pros in Bethlehem, NH

*The Angi rating for Heating And Air Conditioning Service companies in Bethlehem, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Bethlehem, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

Last update on June 11, 2026

Find Heating and air conditioning pros in Bethlehem

Avatar for Jeff Mackay Mechanical, LLC
Jeff Mackay Mechanical, LLC
5.0(
7
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+13 more

Serving Bethlehem, NH and surrounding areas

Approved

In business since 2005

Free estimates

Credit card accepted

"He was professional, courteous, very knowledgeable. Took care of all our needs for the project. I highly recommend him. You did a outstanding job."
Response time2 hrs
Recommended by83%of homeowners
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Avatar for Walshco LLC
Walshco LLC
5.0(
15
)
Oil Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - Install - For BusinessOil Furnace / Forced Air Heating System - Install

Serving Bethlehem, NH and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"They did great job i will definitely hire again."
roth 275
roth 275
Roth 160 Gallon Tank
Response time9 hrs
Response rate100%
26 neighbors recently requested a quote
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Avatar for Hatch Family Electric LLC
Hatch Family Electric LLC
5.0(
6
)
Central A/C - Service or Repair

Serving Bethlehem, NH and surrounding areas

Approved

Free estimates

Offers commercial services

"Gabe showed up when he said he would, completed the project in a timely, efficient and professional manner and was truly a pleasure to work with. I would highly recommend Gabe for any electrical work you need done!"
12 neighbors recently requested a quote
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Avatar for Evan Jones- Master Electrician, LLC
Evan Jones- Master Electrician, LLC
4.0(
22
)
Electrical Baseboard or Wall Heater - InstallThermostat - Install or Replace

Serving Bethlehem, NH and surrounding areas

Approved

In business since 2004

Free estimates

Small jobs welcome

"Excellent customer service from start to finish. Electrician Eric and technician Johnathan were very professional and did an outstanding job. Nice to see young men practicing their trade so well. Highly recommend them without any reservations. Satisfied customer."
Response time3 days
Recommended by88%of homeowners
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Avatar for Meredith Plumbing & Heating
Meredith Plumbing & Heating
4.1(
14
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceElectric Furnace / Forced Air Heating System - Install+47 more

Serving Bethlehem, NH and surrounding areas

Approved

In business since 1985

Free estimates

Emergency services offered

"Fred was wonderful. He converted my new stove/range from Natural gas to propane. In the process, he fixed the gas lines coming from outside the home to the range. Even though it was a small project, he was out very quickly after my call. I expect to be hiring Meredith Plumbing and Heating again for a different project."
Additional Photos
7 neighbors recently requested a quote
Recommended by84%of homeowners
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Avatar for SW WOOD LLC
SW WOOD LLC
5.0(
1
)
Central Air Cleaner - Repair or ServiceDucts & Vents - Install or ReplaceGeothermal Heating or Cooling System - Install+5 more

Serving Bethlehem, NH and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"I was very pleased with the work he did, he has a nice way of explaining things , I sure I will hire him again for other projects when needed he is a very pleasant person to deal with. Tank you Scott for being such a nice guy ."
16 neighbors recently requested a quote
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Avatar for Jay Scannell
Jay Scannell
New to Angi
Air Ducts & Vents - Clean

Serving Bethlehem, NH and surrounding areas

Approved

Free estimates

Small jobs welcome

Offers commercial services

My name is Jay Scannell and I enjoy cleaning and making things spotless. My mother always made sure our house was clean as I was growing up and naturally I have liked to follow those similar footsteps and take it that one step further. I’d enjoy cleaning for you and your family if need be and I am open to anything you throw at me:).

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Avatar for Air Scrubbers Air Duct Cleaning LLC
Air Scrubbers Air Duct Cleaning LLC
3.9(
332
)
Air Ducts & Vents - CleanBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+48 more

Serving Bethlehem, NH and surrounding areas

In business since 2000

Free estimates

Credit card accepted

"Excellent job, professional, considerate of my time.  I already notice less dust bunnies due to my cleaner air.
"
Recommended by77%of homeowners
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Showing 1-10 of 46
Heating and Air Conditioning questions, answered by experts

If you have central air conditioning, it’s fine to run your AC all day if that’s what you want—as long as the AC unit is in good condition. But if your AC runs constantly when you don’t want it to, there may be a problem with your system (like the ones we’ve mentioned above). Window AC units and wall air conditioners aren’t as powerful as central AC, so you should only run those kinds of air conditioners for eight to 12 hours at a time.

As a general rule, you should have your HVAC system professionally serviced at least once a year, though it's best to follow the manufacturer's specific recommendations. Many experts suggest twice-yearly maintenance: once in the spring for the cooling system and once in the fall for the heating system. This is especially recommended for older units, systems with recurring issues, or heat pumps that provide both heating and cooling. Regular service, which can cost between $100 and $550, keeps the system running efficiently, helps prevent costly future repairs, and saves money on utility bills.

AC capacitors have a wide lifespan, ranging from five to 20 years, with an average of about 10 years. Many capacitors will last for the entire life of the air conditioning unit, and most homeowners only need to replace one once. A capacitor should only be replaced if an HVAC professional diagnoses a problem with it. Premature failure can be caused by overheating, power surges, or short circuits. You can help extend the life of your AC capacitor by scheduling regular AC maintenance each year.

To lower humidity quickly, run a dehumidifier or your home's air conditioner or turn on exhaust fans to extract moisture. These methods can quickly and effectively bring your home's humidity levels to a comfortable condition. However, you should consistently practice humidity-reducing tasks to maintain proper indoor humidity levels.

Yes, AC coil cleaning is definitely worth it. Cleaning your AC coils ensures your AC unit will function efficiently for the long term. Dirty and grimy AC coils make your unit work harder to cool your home, resulting in higher electric bills. Additionally, having your coils professionally cleaned regularly will reduce the possibility of extensive maintenance and repair costs.

The Bethlehem, NH homeowners’ guide to heating and air conditioning services

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

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