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Best heating and air conditioning pros near Washington, NH

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TRUSTED BY WASHINGTON, NH HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon15
    Verified heating and air conditioning services reviews

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

Avatar for Everclean Air LLC
Everclean Air LLC
4.8(
43
)
Air Ducts & Vents - Clean

Serving Washington, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Everclear called near immediately upon my query through Angi. The technician came out within a few days, was very prompt on the scheduled appointment and took care of my dryer service. They were very reasonable in my opinion and would highly recommend them on all counts."
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+2

Response time7 hrs
Response rate100%
7 neighbors recently requested a quote
Avatar for Action Plumbing Heating And Air
Action Plumbing Heating And Air
4.9(
92
)
Gas Furnace / Forced Air Heating System - RepairOil Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+23 more

Serving Washington, NH and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Mike & Chase came to do the annual maintenance that hadnâ t been done in over 5 years. They were efficient and careful working on this very old furnace. Mike was very informative- explained and answered all my many questions. Professional, efficient, thoughtful and polite. Iâ m scheduling them for my AC maintenance and plumbing needs. Trustworthy!"
Response time1 day
Response rate89%
19 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 Washington, 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 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 Washington, 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
28 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 Washington, 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 East Coast Plumbing And Heating LLC
East Coast Plumbing And Heating LLC
5.0(
6
)
Oil Furnace / Forced Air Heating System - InstallOil Boiler or Radiator Heating System - InstallDuctless Mini-split Heating System - Install or Replace+3 more

Serving Washington, NH and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"East Coast Plumbing and Heating provided us with a great service on a big job of replacing our 30 years old furnace. Dylan was very accommodating and explained the process in a great detail. His estimate for the job was honest and fair. Dylan and his crew did the job in one day and did an excellent work for a reasonable price. We are very happy with this company and we will work with them in the future. I highly recommend East Coast Plumbing and Heating."
11 neighbors recently requested a quote
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Heating and Air Conditioning FAQs, answered by experts

You can buy R-22 refrigerant for your home air-conditioning system through your local AC repair specialist, who can also refill your R-22 system as needed. You may find that the cost of R-22 has gone up due to shortages as the EPA banned this refrigerant. Ask your pro to inspect your system for any leaks or issues.

Yes, a dirty evaporator coil can freeze up. Dirty evaporator coils can’t absorb or transfer heat properly. The dirt and grime restrict airflow, which is needed to move heat throughout the system properly. Your air conditioning unit could freeze over, or it can cause your heat pump to freeze.

To extend your HVAC system’s lifespan, it’s crucial to keep up with maintenance. This includes changing filters and thermostat batteries, keeping the outside unit clean and clear of clutter, and lubricating moving parts. Watch out for leaks, mold buildup, and blockages to ensure your unit stays in good working order. Spotting these issues early can be the difference between a simple, wallet-friendly repair and an expensive replacement.

While it's generally safe to stay in a home with a coolant leak if your home is properly ventilated, it's important to have a professional come out to assess the situation right away. You should evacuate your home if you notice any powerful fumes. Additionally, you should leave your home if you are experiencing headaches or dizziness.

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.

The Washington, 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.