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TRUSTED BY KEENE, NH HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon43
    Verified heating and air conditioning services reviews

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

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

Serving Keene, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"I wanted to clean a second floor dryer vent hose that was loaded solid with lint. It was worse than I thought! Packed solid! It became evident that this was a messy and dangerous situation as it was a fire hazard. Through Angi I found Everclean and the co. was a perfect fit. HVAC companies don’t do dryer vents. Justin from Everclean was awesome and got the problem straightened out. He even discovered the dryer vent had become disconnected from outside dryer vent door! I can’t fit through the narrow attic hatchway as my shoulders are a bit too wide, so I depended on Justin. Finally, everything is buttoned up, and our clothes now dry in half the time. Cost was moderate and was money well invested. Dryer vent fire danger is now negligible compared to before. Along with neighbor hatred danger. I would hire Everclean again if needed again."
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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 Keene, 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%
45 neighbors recently requested a quote
Avatar for Pro Services
Pro Services
4.8(
152
)
Air Ducts & Vents - Clean

Serving Keene, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Emergency services offered

"The technician was great he diagnosed the problem with my gas fireplace and fixed it right away. I definitely would recommend hiring Chimney and Duct Experts for their service."
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 Keene, 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
Avatar for AS Plumbing & Heating LLC
AS Plumbing & Heating LLC
5.0(
11
)
Electric Boiler or Radiator Heating System - Install

Serving Keene, NH and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

"Andrew knocked this install out of the park! He replaced an incredibly inefficient hot water heater with a hybrid hot water heater, ran the condensate line through pipe straps screwed into drop in anchors along our basement wall with the cleanest looking final result that surpassed every expectation I had. He was very communicative well within the budget and will be our go to for any future work we need as long as we live in this area!"
3 neighbors recently requested a quote
Avatar for Kayla
Kayla
New to Angi
Air Ducts & Vents - Clean

Serving Keene, 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

The cost of R32 refrigerant is about the same as the cost of R410A refrigerant, the most widely available type of refrigerant today. However, R32 systems use about 20% less refrigerant than R410A systems, making the refrigerant less expensive overall.

Yes. Getting a whole-house dehumidifier can help you save money on energy bills. How? Your home automatically feels cooler when there’s less humidity in the air (“It’s the humidity that gets ya!” is such a true statement). This means that you won’t need to run your AC as much as you would if you had all that extra humidity in your home.

A blocked return air vent can cause your HVAC system to work much harder and, therefore, less efficiently. The result is higher utility bills and poorer air quality. A blocked return air vent can also cause unpleasant dust, dander, and odors to linger in your home’s air.

You can protect your air conditioner in the winter by turning off the power at the thermostat and performing routine HVAC maintenance in the spring. Regular maintenance, cleaning, and repair of your AC unit helps protect it and extend its life span. If you have a window AC unit, remove it from the window and store it in a dry place during the winter. Window units cannot withstand freezing temperatures. Keeping them in your window also allows cold air to seep into your home.

Florida rooms can have heat or air conditioning, although not all do. These rooms can be added to the existing HVAC system or use a mini-split system, or they may just use a ceiling fan or the breeze from the windows for cooling. Florida rooms with air conditioning often have glass windows to keep the cool inside instead of just mesh screens.

The Keene, 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.