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Best heating and air conditioning pros near Croydon, NH

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TRUSTED BY CROYDON, NH HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon23
    Verified heating and air conditioning services reviews

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

Avatar for Walshco LLC
Walshco LLC
5.0(
10
)
Oil Boiler or Radiator Heating System - RepairOil Furnace / Forced Air Heating System - Repair

Serving Croydon, 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 Hometown Heating & Air
Hometown Heating & Air
5.0(
3
)
Central A/C - InstallGas Boiler or Radiator Heating System - InstallGas Furnace / Forced Air Heating System - Install+47 more

Serving Croydon, NH and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"While we didnt hire them, the company contacted us right away and were available within an appropriate timeline. The coordinator was friendly and reassuring and had we not had someone lined up I would have felt very comfortable moving forward with this group. They were transparent about their pricing and displayed confidence in their capabilities."
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
Response rate100%
8 neighbors recently requested a quote
Avatar for Total Climate Control
Total Climate Control
3.4(
194
)
Gas Furnace / Forced Air Heating System - InstallOil Furnace / Forced Air Heating System - InstallCentral A/C - Install+5 more

Serving Croydon, 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
27 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for AS Plumbing & Heating LLC
AS Plumbing & Heating LLC
5.0(
9
)
Electric Boiler or Radiator Heating System - Install

Serving Croydon, 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!"
6 neighbors recently requested a quote
Avatar for PuriferaLLC
PuriferaLLC
5.0(
2
)
Air Ducts & Vents - Clean

Serving Croydon, NH and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"Excellent rug cleaning service! Purifera Cleaning was friendly, professional, and did an amazing job. My rug looks like new, and I?m very happy with the results. I highly recommend them!"
2 neighbors recently requested a quote
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Heating and Air Conditioning FAQs, answered by experts

It is normal for the attic to be hotter than the rest of the house in the summer, but only by about 10 or 20 degrees. Attics that aren’t properly insulated or ventilated can reach temperatures of 130 degrees or more which can cause damage to the home’s structure, including the roof, wood framing, and HVAC system.

To keep a window air conditioner in good working order, you should clean the filter regularly, inspect the seals, and store the unit properly during the off-season.

A power outage can damage your air conditioner, just like a power surge can damage any electrical device or appliance. In most cases, your circuit breaker or built-in surge protection on your AC unit protects your AC and just needs a reset. But in other cases, it might be that your AC compressor or capacitor was blown during the power surge. You’ll need to have an HVAC professional repair or replace any AC parts. 

To diagnose a bad HVAC or AC damper, assess the airflow from your vents. For a manual damper, close it, run your system, and check for airflow. If air is still coming through the vents, the damper is likely faulty and needs repair or replacement. For an automatic damper, turn on your HVAC system and monitor the airflow and room temperature. Signs of a problem include low airflow, a room that won't maintain its set temperature, or a drafty feeling. If you suspect a faulty automatic damper, you may need to hire a professional for repairs.

Many HVAC manufacturers provide warranties that encompass the cost of a new compressor, with durations ranging from 5 to 10 years, depending on the brand. These warranties cover critical components such as the compressor, condenser, connecting tubing, evaporator, and refrigerant charge. Moreover, they often include the necessary labor for replacement or repairs. Keep in mind that premium-brand compressors may offer lifetime warranty options. It's essential to note that these warranties rarely cover labor costs.

The Croydon, 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.