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Best heating and air conditioning pros near Nelson, NH

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TRUSTED BY NELSON, NH HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon42
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Nelson - Updated Nov 2026

Avatar for Everclean Air LLC
Everclean Air LLC
4.8(
44
)
Air Ducts & Vents - Clean

Serving Nelson, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Great !! Gabriel was on time and went right to work. He took pictures of duct work before and after. He supplied my wife and I N95 masks to wear during the cleaning keeping us safe. Gabriel was a true professional."
Additional Photos
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+2

Response time7 hrs
Response rate100%
6 neighbors recently requested a quote
Avatar for Walshco LLC
Walshco LLC
5.0(
19
)
Oil Boiler or Radiator Heating System - RepairOil Furnace / Forced Air Heating System - Repair

Serving Nelson, NH and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"Brady and Casey are an awesome team. They came a long distance when the locals couldn't or wouldn't. They're friendly, extremely knowledgeable and if they were closer, they would be our regular furnace experts!"
roth 275
roth 275
Roth 160 Gallon Tank
Response time9 hrs
Response rate100%
43 neighbors recently requested a quote
Avatar for Pro Services
Pro Services
4.8(
152
)
Air Ducts & Vents - Clean

Serving Nelson, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Emergency services offered

"We needed chimney sweep & minor repairs. Scheduling was easy and the guys who showed up were on time and very professional. Work was done well and we’re very happy, will be calling them for all future work on our chimney and HVAC."
Chimney Cap Installation
Smoke chamber before
Chimney Sweep Project
Fireplaces Project
Chimney Sweep Project

+36

Response time4 days
Response rate100%
47 neighbors recently requested a quote
Avatar for Walshco LLC
Walshco LLC
5.0(
10
)
Oil Boiler or Radiator Heating System - RepairOil Furnace / Forced Air Heating System - Repair

Serving Nelson, NH and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

WalshCo is a family-owned heating company specializing in oil-fired heating systems throughout New Hampshire and surrounding communities. \n \nOur services include oil tank installations and replacements, oil boiler and furnace installations, heating system repairs, annual maintenance and tune-ups, diagnostics, emergency no-heat service, water heater installations, and oil tank inspections. \n \nWe take pride in providing honest recommendations, quality workmanship, fair pricing, and dependable service. Whether you need a new oil tank, a complete heating system replacement, or fast repairs to restore your heat and hot water, our licensed technicians are committed to getting the job done right. \n \nAs a family-owned business, we believe in straightforward communication, professional service, and treating every customer?s home with the same care and respect we would our own.

Roth 160 Gallon Oil Tank
Roth 160 Gallon Oil Tank
Roth 160 Gallon Oil Tank
Gotme Under Pressure ?, LLC
4.3(
648
)
Gas Boiler or Radiator Heating System - Repair

Serving Nelson, 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
Avatar for Kayla
Kayla
New to Angi
Air Ducts & Vents - Clean

Serving Nelson, NH and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

I’m Kayla, I have done residential and commercial cleaning for about 15 years, I worked as an LNA for a while in between. A friend and I cleaned airB&B's for a summer, rental homes and even helping with move in and move out jobs. I cleaned for my towns local banks for about 5 years, I worked underneath someone at the time. I am willing to travel to help someone out. I am good with knowing what cleaners you use for each project, I supply my own unless told otherwise. I am a reliable and detail‑oriented house cleaner based in Newport, NH. I take pride in leaving spaces fresh, tidy, and calm. Whether it’s a one‑time deep clean or regular upkeep, I’m consistent, punctual, and careful with people’s homes. I focus on creating a peaceful reset that makes coming home feel lighter.

2 neighbors recently requested a quote
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Heating and Air Conditioning FAQs, answered by experts

DIY is possible for basic cleaning. Professional services handle advanced maintenance like recharging the refrigerant.

Some of the signs of HVAC issues include rising energy bills, rooms not cooling or heating properly, loud noises when in operation, and signs of condensation. To illustrate, if you’re wondering how to stop condensation on air vents, you’ll need to have your HVAC inspected. 

High humidity, bad insulation, warmth from sunlight, and poor circulation are all reasons your home’s hotter inside than out. While this is what you want in the colder months, summer can become unbearable if this is a constant. Try to find the cause, but you need to remember that issues like this require a permanent fix (unless you want to bear down during the summer months).

Yes, through thorough cleaning and inspection, optimizing functionality, and reducing energy use.

There are a few reasons your AC is running but not cooling your room. Thermostat issues and dust and debris, which can clog your system, are common problems. It could also be a broken component, such as a compressor, blower fan, or evaporator coils. You’ll need to call a pro to diagnose the issue.

The Nelson, 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.