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TRUSTED BY GRANTHAM, NH HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon22
    Verified heating and air conditioning services reviews

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

*The Angi rating for Heating And Air Conditioning Service companies in Grantham, 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 Grantham, 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 February 16, 2026

Find Heating and air conditioning pros in Grantham

Avatar for Action Plumbing Heating And Air
Action Plumbing Heating And Air
4.9(
92
)

Serving Grantham, NH and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Mike the technician was a pleasure to work with. It took two visits to fix our problem with the AC, but we are very happy customers."
Response time1 day
Response rate87%
18 neighbors recently requested a quote
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Avatar for Walshco LLC
Walshco LLC
5.0(
15
)

Serving Grantham, NH and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"I had a zone issue with my forced radiant heat system. They were able to quickly diagnose the issue, and came up with a cost effective solution. I highly recommend them to anyone having furnace issues this winter, and they're super friendly!"
roth 275
roth 275
Roth 160 Gallon Tank
Response time9 hrs
Response rate96%
4 neighbors recently requested a quote
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Avatar for Hometown Heating & Air
Hometown Heating & Air
5.0(
3
)

Serving Grantham, NH and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Very responsive communicators, helpful with advice, seemed to have my best interests in mind. Installers were very courteous, friendly, efficient, and cleaned up beautifully - explained equipment and coordinated well with other contractors involved. Definitely recommend."
12,000 BTU floor mounted console
cassette style Mini split
Indoor 9,000 BTU high wall head.
36,000 BTU outdoor condenser
Additional Photos

+25

Response time1 day
17 neighbors recently requested a quote
Recommended by50%of homeowners
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Avatar for Total Climate Control
Total Climate Control
3.4(
194
)

Serving Grantham, NH and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"It was awesome. They did the b they did, you know, I mean They did within a week, so within six days they had all they they were here, so that came the 1st day. He gave me a quote right away within 3 h hours so I called all three I called all three of the places you recommended, and this one was the best."
Central AC
New Gas boiler
All new hydronics
All new hydronics
51 neighbors recently requested a quote
Recommended by86%of homeowners
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Avatar for Hatch Family Electric LLC
Hatch Family Electric LLC
5.0(
6
)

Serving Grantham, 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
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Gotme Under Pressure ?, LLC
4.3(
646
)

Serving Grantham, 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 PuriferaLLC
PuriferaLLC
5.0(
1
)

Serving Grantham, NH and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"I had a great experience with Purifera Cleaning. They showed up on time, were easy to work with, and did an amazing job. My carpets came out looking so much better than I expected, and they took the time to make sure everything was done right. The whole process was smooth from start to finish. I?ll definitely be using them again and would recommend them to anyone looking for a reliable carpet cleaning company."
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Avatar for Minuteman Heating Cooling Refrigeration, LLC
Minuteman Heating Cooling Refrigeration, LLC
4.9(
55
)

Serving Grantham, NH and surrounding areas

In business since 2021

Free estimates

Emergency services offered

"Jeff did an excellent job. I could not be happier. He determined the issue and installed new parts and my A/C was up and running during this summer heat wave. He took the time to explain what was going on with the unit and what needed to be fixed. Very friendly and honest. Highly recommended."
Response time4 hrs
Response rate93%
Recommended by92%of homeowners
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Showing 1-10 of 68
Heating and Air Conditioning questions, answered by experts

Keeping your air filter clean is crucial for your heat pump's efficiency. As a general rule, you should check your air filter every 1 to 3 months. However, the actual frequency might vary depending on factors like the type of filter, indoor air quality, and the amount of dust and debris in your area. If you notice the filter is visibly dirty or clogged, it's a clear sign it needs attention sooner. Regular filter maintenance ensures proper airflow and helps your heat pump perform optimally, keeping your indoor air fresh and comfortable.

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.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

If you’re looking for a portable, budget-friendly cooling solution that doesn’t require any venting or installation, a ventless AC system is a good option. Similarly, this is a great choice if you’re renting an apartment or home and aren’t allowed to make large, structural changes like installing comprehensive HVAC, or you’re in a shared space and only need to cool your own room.

The difference between a home surge protector and an HVAC surge protector is that an HVAC surge protector is designed to protect the components inside your HVAC unit while a home surge protector is installed near appliances and meant to protect your entire home. There are three tiers of whole-house surge protectors, and they are more expensive to install than HVAC surge protectors.

The Grantham, 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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