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TRUSTED BY ALSTEAD, NH HOMEOWNERS

  • Average homeowner rating star icon3.6
    Average homeowner rating
  • Verified reviews icon11
    Verified heating and air conditioning services reviews

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

*The Angi rating for Heating And Air Conditioning Service companies in Alstead, 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 Alstead, 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 March 31, 2026

Find Heating and air conditioning pros in Alstead

Avatar for Action Plumbing Heating And Air
Action Plumbing Heating And Air
4.9(
92
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairOil Furnace / Forced Air Heating System - Install+23 more

Serving Alstead, NH and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Very impressed with all services performed . They will now handle all plumbing needs moving forward."
Response time1 day
Response rate89%
22 neighbors recently requested a quote
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Avatar for Walshco LLC
Walshco LLC
5.0(
18
)
Oil Furnace / Forced Air Heating System - InstallOil Furnace / Forced Air Heating System - RepairOil Boiler or Radiator Heating System - Repair

Serving Alstead, 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!"
roth 275
roth 275
Roth 160 Gallon Tank
Response time9 hrs
Response rate100%
30 neighbors recently requested a quote
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Avatar for Chimney Experts
Chimney Experts
4.9(
142
)
Air Ducts & Vents - Clean

Serving Alstead, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Emergency services offered

"The technician, Steve, called me 25 minutes prior to his arrival. He was extremely knowledgeable about my gas fireplace. He vacuumed all areas. He informed me of the condition of the components. I was prepared to ask him a handful of questions that he was able to answer. My fireplace works very well and I strongly recommend using the Chimney Experts."
Chimney Cap Installation
Smoke chamber before
Chimney Sweep Project
Fireplaces Project
Chimney Sweep Project

+36

Response time4 days
Response rate100%
30 neighbors recently requested a quote
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Avatar for County Line Plumbing and Heating
County Line Plumbing and Heating
5.0(
11
)
Gas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For BusinessOil Boiler or Radiator Heating System - Install+1 more

Serving Alstead, NH and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"Justin at County Line Plumbing and heating came out shortly after I called the office. Due to my leaking 50 gallon water heater started leaking! He added the situation and installed a new Rinnai on demand water heater later that day!!! Not only was the price fair, but he explained everything every step of the way! Highly recommend 10 out of 10"
Photo 1
Photo 2
Recommended by18%of homeowners
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Gotme Under Pressure ?, LLC
4.3(
647
)
Gas Boiler or Radiator Heating System - RepairOil Boiler or Radiator Heating System - Repair

Serving Alstead, NH and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"Exchanged messages with Mike to describe work needed, replace an outdoor faucet and shutoff value (previous faucet was leaking). He gave an estimate, reviewed work to be done. Replaced outdoor spigot with a frost-proof spigot, put on new value. Quick test and validation. Professional, efficient and happy with work done! Thank you Mike !"
1 neighbors recently requested a quote
Recommended by88%of homeowners
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Avatar for AS Plumbing & Heating LLC
AS Plumbing & Heating LLC
5.0(
6
)
Electric Boiler or Radiator Heating System - Install

Serving Alstead, NH and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

"I used ANGI for the first time and AS Plumbing and Heating contacted me promptly. They were able to provide services the same day. The service was exceptional and price was very reasonable. I would highly recommend this company and will use them in the future."
4 neighbors recently requested a quote
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Avatar for A2K Electric, LLC
A2K Electric, LLC
5.0(
5
)
Electrical Baseboard or Wall Heater - InstallThermostat - Install or Replace

Serving Alstead, NH and surrounding areas

Approved

In business since 2022

Free estimates

Small jobs welcome

"Andy came right out and was very professional, answered all our questions and did an outstanding job. We highly recommend A2K Electrical."
New Panel Install
Recommended by100%of homeowners
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Avatar for Minuteman Heating Cooling Refrigeration, LLC
Minuteman Heating Cooling Refrigeration, LLC
4.9(
55
)
Central A/C - Service or RepairDuctless Mini-split A/C - Install or ReplaceGas Boiler or Radiator Heating System - Repair+12 more

Serving Alstead, NH and surrounding areas

In business since 2021

Free estimates

Emergency services offered

"Jeff was professional and fast. He was upfront about the problem and very affordable. Lowest quote received and made sure I was happy with the work prior to leaving. Would recommend to anyone with hvac issues. I will be using him exclusively going forward."
Response time4 hrs
Response rate94%
Recommended by92%of homeowners
Request Quote
Avatar for Zajac HVAC LLC - Facebook
Zajac HVAC LLC - Facebook
5.0(
11
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+9 more

Serving Alstead, NH and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"Very easy to work with . Prompt fair . Very nice person. Would highly recommend"
Old Heat Maker combi
New Bosch Greenstar
Bosch Greenstar
Rheem
Rinnai under stairs

+3

Response time2 days
Recommended by100%of homeowners
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Avatar for McGinley & Sons Heating & Air Conditioning
McGinley & Sons Heating & Air Conditioning
3.8(
244
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceDuctless Mini-split Heating System - Install or Replace+10 more

Serving Alstead, NH and surrounding areas

In business since 2006

Free estimates

Emergency services offered

"I would recommend Bill and his sonâ  s to anyone needing hvac work. All their workers were very conscientious and professional. I couldnâ  t be happier with the AC units that they recommended."
Buderus Boiler/Indirect
Air Handler M.Bedroom
Air Handler Main floor
Response time1 day
Recommended by84%of homeowners
Request Quote
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Heating and Air Conditioning questions, answered by experts

If there’s a freon leak in your home’s AC unit, it will cause the system to work overtime to cool the house. That issue will result in higher energy bills and it will take much longer for cool air to disperse throughout the home. If your system has a freon leak during the summer, it can make hot days miserable. That’s why it’s important to hire an HVAC professional to resolve a freon leak as quickly as possible.

Yes, you can potentially save $60 to $200 by handling your own air conditioner capacitor installation. However, capacitor replacement comes with the risk of electric shock. Only attempt this if you have the knowledge and protective gear to carry it out safely. Otherwise, we recommend hiring an HVAC pro with the experience to properly diagnose the issue and avoid damaging other parts of your AC unit.

The best way to reduce heat upstairs is to release it by opening a window. Hot air rises, and if you can create some airflow by opening a window upstairs and also one on a lower level, the hot air should be pushed out of the home. Remember that fans pointing out the window do a much better job of circulating air than fans pointing into the home.

A new air conditioner capacitor will cost less than replacing the entire air conditioner system. While a capacitor itself will cost between $8 and $25, paying a professional to replace an AC capacitor will cost $180 on average. It’s not safe to replace an air conditioner capacitor on your own. 

You should plan to change your AC unit's filter every one to three months, depending on the manufacturer's recommendations. You should also clean the coils at least once per year, but if you have pets or someone in your household has allergies, you might need to clean them more often. Fortunately, many pros will clean the coils and change the filter for you during an inspection, which you should schedule once or twice per year.

The Alstead, 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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