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Best heating and air conditioning pros near Milton, NH

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TRUSTED BY MILTON, NH HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon76
    Verified heating and air conditioning services reviews

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

Avatar for Freedom Air Mechanical
Freedom Air Mechanical
4.8(
14
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+47 more

Serving Milton, NH and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"I posted I needed a window AC unit removed and this company was the only one to respond. The owners wife responded with in an hour, told me they would be at my house 3 days later. I responded, can you give me an estimate of how much it would cost. She responded, sir there is no charge, we just like helping out the community. I was shocked. Being on a fixed income. Craig arrived, removed the AC, and I started asking questions about mini split systems. He was here at least an hour explaining how they worked and my options. I have now ordered my new AC slash heatpump, to be installed. There was no pressure, just me asking questions and I loved what he had to say. Perfect gentleman."
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+36

Response time1 day
Recommended by92%of homeowners
Avatar for Palmer Gas & Oil
Palmer Gas & Oil
4.6(
89
)
Ducts & Vents - Install or ReplaceBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+47 more

Serving Milton, NH and surrounding areas

Approved

Super Service Award Winner

In business since 1932

Free estimates

Emergency services offered

"Palmer Gas & Oil just did an entire replacement of the 20-year-old central HVAC + humidifier + thermostats two-zone system in my home with a new state-of-the-art total system and I could not be more pleased. From start to finish each employee was personable, extremely knowledgeable, very courteous, and the consummate professional. There is truth to the adage that you get what you pay for and I know I got the best. All Gold Stars!"
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+11

1 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Barrington Solutions Plumbing & Heating LLC
Barrington Solutions Plumbing & Heating LLC
4.9(
17
)
Gas Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - RepairGas Boiler or Radiator Heating System - Install+9 more

Serving Milton, NH and surrounding areas

Approved

In business since 2024

Free estimates

Small jobs welcome

"I finally got to build my dream garage to store all my tools and have a cool hangout on Friday nights with the boys n a couple coors. Chris came and did everything from the bathroom and the heating system. I will definitely be calling him back to add a mini split in the future. He was professional, punctual and clean. Very knowledgeable you can tell he cares about his clients."
Granite Ridge
Brook hill development
Sanborton
Derry
2.5 bathroom modular

+39

41 neighbors recently requested a quote
Avatar for Heritage Home Service
Heritage Home Service
4.5(
464
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallOil Furnace / Forced Air Heating System - Install+12 more

Serving Milton, NH and surrounding areas

Approved (Corporate)

In business since 1988

Free estimates

Emergency services offered

"Customer service and communication was outstanding. The quick response to resolving our problem (hot water heater replacement) was greatly appreciated. Not sure if the 5-star â valueâ rating is appropriate since we didnâ t pursue competitive pricing...we didnâ t bother because they were exceptional on all other fronts."
Generator Installation
Light Fixture Service
Oultet services
Indoor Outlet Service
HVAC Outdoor Unit

+16

Response time1 day
386 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Angell Electric
Angell Electric
5.0(
30
)
Electrical Baseboard or Wall Heater - InstallElectrical Baseboard or Wall Heater - RepairThermostat - Install or Replace+1 more

Serving Milton, NH and surrounding areas

Approved

In business since 2019

Credit card accepted

Offers commercial services

Angell Electric is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you! \n \nCleaner \ntrust worthy \nfair pricing compared to others \nPanel upgrades are an opportunity help \n \nM-F 7-7 \n \nSat 8-5

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3 neighbors recently requested a quote
Recommended by17%of homeowners
Avatar for Bob Daniels Electric
Bob Daniels Electric
4.5(
46
)
Electrical Baseboard or Wall Heater - InstallElectrical Baseboard or Wall Heater - RepairThermostat - Install or Replace

Serving Milton, NH and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"They contacted us in a prompt timeframe, confirmed the appt, showed up and did the job all in one day for a reasonable fee. The new fan/ light for our bathroom looks great and they cleaned up after their work. They were pleasant and wore their masks the whole time. We will definitely call Bob Daniels Electric when we have another electrical project."
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Response time6 hrs
6 neighbors recently requested a quote
Recommended by97%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

Some HVAC systems tend to use R410A refrigerant, although if you have an older model it may be using R22. R22 is banned due to its harmful environmental and health impacts, and it is a sign that your AC unit is old enough to consider a replacement and the significant efficiency gains that could come with it.

If you’re planning an AC replacement, choosing an AC with a higher SEER rating may save you money in the long run. Tax credits could cover as much as 30% of the job, and you’ll notice smaller utility bills (particularly if you live in a hot climate where you need to constantly run the AC). Generally, you can expect to pay between $350 and $1,500 for each SEER rating increase. Weigh the cost against your typical utility bill to figure out what’s worth it to you.

Evaporator coils in HVAC systems typically last around 10 to 15 years. However, their life span can be longer or shorter based on factors like the frequency of your HVAC system usage, whether regular maintenance is performed, and environmental conditions. Regular maintenance, such as HVAC system cleaning and coil inspection, can extend the durability and efficiency of your evaporator coil.

At a minimum, an HVAC system should be serviced once per year. However, a twice-a-year service schedule—once in the spring for the cooling system and once in the fall for the heating system—is often recommended, especially for older systems, heat pumps, or in climates with extreme temperatures. Regular service, which includes inspection, cleaning, and maintenance, ensures the system runs efficiently, helps prevent costly breakdowns during peak seasons, and can extend the unit's lifespan. You can also schedule a service if you notice issues like poor performance or strange noises.

The decision to put your AC unit on the roof or ground depends on the climate in your area, the roof shape, accessibility, and budget. If you live in a warm climate or don’t have existing ductwork, it’s likely best to stick to a traditional AC unit that sits on the ground. However, if you lack yard space, live in a mild climate, and have easy access to the roof, your home may benefit from a rooftop AC unit. 

The Milton, 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.