Top-rated heating and air conditioning pros.

Get matched with top heating and air conditioning pros in Monroe, NH

Q: How often does an AC unit need Freon?

• <div><p>Ideally, an AC system should never need more Freon (a popular refrigerant) because it circulates in a closed loop. However, refrigerant leaks are not uncommon and may occur gradually over 5 to 15 years. If your system has a leak, it will need to be topped up in a process known as an AC recharge. Signs of a refrigerant leak include weakened AC performance, increased humidity in your home, higher utility bills, and a hissing sound from the unit. The cost of an AC recharge will depend on the size and type of your AC unit, as well as the type of refrigerant it uses.</p></div>

Q: How many HVAC quotes should I get?

• <div><p>Most experts recommend getting three to five HVAC quotes from licensed, insured, reputable local heating and cooling companies. Getting multiple detailed HVAC quotes (but not too many) lets you compare the equipment, services, and prices of several contractors without being overwhelmed by options. It can also let you see if one contractor&rsquo;s prices are much higher or lower than the others and give you a chance to ask for clarification. That way, you can weed out any contractors who aren&rsquo;t providing quality services or materials and find the company that best meets your budget, quality requirements, and long-term goals. </p></div>

Q: What kind of refrigerant does my HVAC system use?

• <div><p>Some HVAC systems tend to use R410A refrigerant, although if you have an older model <a href="https://www.angi.com/articles/what-fair-price-r-22-refrigerant.htm">it may be using R22</a>. R22 is banned due to its harmful environmental and health impacts, and it is a sign that your AC unit is old enough to consider a replacement and the significant efficiency gains that could come with it.</p></div>

Q: Is it bad to run AC below 70 degrees?

• <div><p>Most HVAC companies recommend against setting your AC below 70 as it could freeze up the system and cause more problems. Regardless of how hot it is outside, there is generally a 20 degree difference between the outside and inside temperatures, so even if it&rsquo;s 100 degrees outside, your AC will likely not be able to cool your home to 70 degrees. </p></div>

Q: What is the difference between air ducts and HVAC?

• <div><p>An HVAC unit, like a furnace, air conditioner, or heat pump, produces warm or hot air. The air ducts serve as the passages to help heat or cool air from the HVAC unit flow through the home. Air ducts are just one part of the overall HVAC system. </p></div>

Enter your zip and get matched with up to 5 pros

Need a pro for your heating and air conditioning service project in Monroe, NH?

Select your specific project to find the pro for you.

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

*The Angi rating for Heating And Air Conditioning Service companies in Monroe, 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 Monroe, 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 October 16, 2025

Reviewed in October 2025
These guys were absolutely FANTASTIC. They were professional, personable and very thorough. The whole team was communicative and engaged from the start of making the appointment to the end and follow-up. As a new home buyer I was sad to find out that the previous home owners had not been...
McBriens Fire & Flue
Request a quote
Reviewed in September 2025
Kane and his crew promptly removed a dangerous tree from our property that we were worried about. He was prompt and courteous and so easy to work with. I would not hesitate to recommend his firm to anyone. Again thank you Kane.
Kowboy Property Maintenance
Request a quote
Reviewed in May 2025
We highly recommend Rob. With weather change and heavy rain, we were having water enter our chimney. When we first contacted Rob, he responded that same day to provide a temporary solution since a major rainstorm was forecast and we were already having a problem. Recently we've had him...
Apex Chimney Repairs, LLC
Request a quote
Reviewed in February 2025
Hot water heater install in the basement and outdoor hose faucet. Got it done quick and have no leaks. Cheaper than I expected too. Highly recommend and will use again. Damn good job.
Maple Valley Plumbing & Heating LLC
Request a quote
Reviewed in April 2024
The work they performed was beyond excellent! They were clean and respectful and worked continuously till the job was done. Can't wait to see what we will be saving on heat. Thanks so much Paul & crew!
Performance Spray Foam
Request a quote
Reviewed in February 2024
HoweD Tree was able to come assess damage from a wind storm quickly. They were very professional and gave me options that could save me some money. We made an appointment, and they showed up on time and did the work. Who could ask for more?
Howe D Tree
Request a quote
Reviewed in February 2024
they were great . very friendly answered all my questions while being professional. they wasted no time, they were aware our heat had to be off while they serviced our vents. i was very impressed for young men to be so professional
Scotch Pine Inc
Request a quote
Reviewed in September 2023
Cleaned 16 y/o pellet stove. Works like new! Putting out incredibly more heat that past few years. I bought the stove from him 16 years ago. He knows his stuff!
North Country Chimney Sweeps
Request a quote
Reviewed in April 2023
They did an excellent job and they were very prompt. When they came, they were very polite and professional. Everything was nice and clean when they left.
Timberline Overhead Door Systems LLC
Request a quote
Reviewed in January 2023
I am over 70 years old and have owned many houses and dealt with many contractors. Jason is the best electrician yet. He has been servicing my current home since 2006. I have never had to pay him for a "redo". Some contractors don't do it right the first time and try to charge for a second...
Hightower Electric, LLC
Request a quote

Find Heating and air conditioning pros in Monroe

Jeff Mackay Mechanical, LLC

5.0(

)

Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+13 more

Serving Monroe, 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

Oil Furnace / Forced Air Heating System - RepairOil Boiler or Radiator Heating System - Repair

Serving Monroe, NH and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"The company was extremely professional in terms of using the hose properly .They did everything in a timely manner. Very clean and efficient work! Excellent customer service all around!"

Response time9 hrs

Response rate100%

31 neighbors recently requested a quote

Request Quote

Hatch Family Electric LLC

5.0(

)

Central A/C - Service or Repair

Serving Monroe, 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!"

13 neighbors recently requested a quote

Request Quote

Meredith Plumbing & Heating

4.1(

)

Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceElectric Furnace / Forced Air Heating System - Install+47 more

Serving Monroe, 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."

7 neighbors recently requested a quote

Recommended by84%of homeowners

Central Air Cleaner - Repair or ServiceDucts & Vents - Install or ReplaceGeothermal Heating or Cooling System - Install+5 more

Serving Monroe, 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 ."

15 neighbors recently requested a quote

Request Quote

Jay Scannell

New to Angi

Air Ducts & Vents - Clean

Serving Monroe, 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:).

Request Quote

Kevin Chamberlain

New to Angi

Air Ducts & Vents - Clean

Serving Monroe, NH and surrounding areas

Approved

Emergency services offered

Small jobs welcome

Handyman with general and some advanced knowledge of property maintenance inside and out!

Request Quote

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 Monroe, 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

Request Quote

North Alabama Technical Services

4.9(

124

)

Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+47 more

Serving Monroe, NH and surrounding areas

In business since 2010

Emergency services offered

Credit card accepted

"Mr. Ferrell worked with my husband over the phone to fix the problem. It was surprisingly fast and stress-free. To have the work done remotely in less than an hour was wonderful."

Recommended by97%of homeowners

Request Quote

New Hampshire Ductless LLC

4.3(

)

Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+47 more

Serving Monroe, NH and surrounding areas

In business since 2021

Free estimates

Emergency services offered

"Very professional business.I would highly recommend this company to those who need an honest HVAC contractor."

Recommended by100%of homeowners

Request Quote

Showing 1-10 of 39

Heating and Air Conditioning questions, answered by experts

Ideally, an AC system should never need more Freon (a popular refrigerant) because it circulates in a closed loop. However, refrigerant leaks are not uncommon and may occur gradually over 5 to 15 years. If your system has a leak, it will need to be topped up in a process known as an AC recharge. Signs of a refrigerant leak include weakened AC performance, increased humidity in your home, higher utility bills, and a hissing sound from the unit. The cost of an AC recharge will depend on the size and type of your AC unit, as well as the type of refrigerant it uses.

Most experts recommend getting three to five HVAC quotes from licensed, insured, reputable local heating and cooling companies. Getting multiple detailed HVAC quotes (but not too many) lets you compare the equipment, services, and prices of several contractors without being overwhelmed by options. It can also let you see if one contractor’s prices are much higher or lower than the others and give you a chance to ask for clarification. That way, you can weed out any contractors who aren’t providing quality services or materials and find the company that best meets your budget, quality requirements, and long-term goals.

Some HVAC systems tend to use R410A refrigerant, although if you have an older model it may be using R22. R22 is banned due to its harmful environmental and health impacts, and it is a sign that your AC unit is old enough to consider a replacement and the significant efficiency gains that could come with it.

Most HVAC companies recommend against setting your AC below 70 as it could freeze up the system and cause more problems. Regardless of how hot it is outside, there is generally a 20 degree difference between the outside and inside temperatures, so even if it’s 100 degrees outside, your AC will likely not be able to cool your home to 70 degrees.

An HVAC unit, like a furnace, air conditioner, or heat pump, produces warm or hot air. The air ducts serve as the passages to help heat or cool air from the HVAC unit flow through the home. Air ducts are just one part of the overall HVAC system.

The Monroe, 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.

See all articles

Marwa Hasan
•
Jul 9, 2026Jul 9, 2026
Can You Add Central Air to a Baseboard-Heated House?
A central air system is great for someone looking to cool and heat their home all year round. Even if your home uses baseboard heating, you can still make the switch. Read on to learn more about adding central air to a baseboard-heated house.
Katy Willis
•
May 21, 2026May 21, 2026
12 Air Conditioning Tips for the Summer
Try these 12 top tips to keep your air conditioner working at maximum efficiency. Stay cool, and minimize energy costs with this expert air conditioning advice.
Lawrence Bonk
•
Aug 9, 2026Aug 9, 2026
13 Cool Tips to Reduce Air Conditioning Costs This Summer
Learn how to save money on air conditioning costs this summer by following this handy guide all about your favorite cooling system.
Breyden Kellam
•
Jul 9, 2026Jul 9, 2026
Heat Pump vs. Air Conditioner: What’s the Difference?
Is it time for a new cooling system for your home? Check out this guide to get a head-to-head comparison of heat pump vs. air conditioner systems.
Mary Beth Eastman
•
Jul 9, 2026Jul 9, 2026
Pros and Cons of Air-Source Heat Pumps
Air-source heat pumps are an energy-efficient way to heat and cool your home. Learn the pros and cons of this heating method.
Sophie Yalkezian
•
Jul 7, 2026Jul 7, 2026
How to Retrofit Air Conditioning in Your Home (Even When You Think It’s Not Possible)
Retrofitting your house for AC is, surprisingly, not too hard. Here’s what you’ll need to consider to make it happen.