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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon466
    Verified heating and air conditioning services reviews

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

Avatar for AC Air Duct Cleaning
AC Air Duct Cleaning
5.0(
30
)
Air Ducts & Vents - Clean

Serving Lagrangeville, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"It went amazing my kids and I have so many allergies specially in this season and it’s so hard when we can’t even feel good at home because of the dust in the air conditioning duct, I have been paying for many services with different companies and it just worked for few weeks until I hired this company and their work exceeded my expectations. Highly recommended. Thank you for the services"
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+29

Response time7 hrs
Response rate100%
1 neighbors recently requested a quote
Joe's Plumbing, Heating & Air Conditioning
4.6(
84
)
Oil Boiler or Radiator Heating System - InstallOil Furnace / Forced Air Heating System - InstallDucts & Vents - Install or Replace+26 more

Serving Lagrangeville, NY and surrounding areas

Approved

In business since 2003

Free estimates

Credit card accepted

"This is not my first review of Joe's Plumbing but they just keep knocking it out of the park. Decided to do pipe replacement on a 60 year old home do to multiple leaks. Wanted to get it done before the cold came, and Joe's did the job on time, under budget, and the quality was second to none. When they found they couldn't turn the water off from the street, they kept moving on the job and did a fantastic job. Joe's was the first called and they have not let me down yet. Thank you Ace and Reg!"
Response time2 days
6 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for All in One Home Services
All in One Home Services
4.5(
69
)
Central A/C - Service or Repair

Serving Lagrangeville, NY and surrounding areas

Approved

In business since 2003

Emergency services offered

Warranties offered

"Joe was fantastic. He responded quickly to my inquiry, stayed in touch prior to the repair visit, arrived promptly and quickly resolved the problem with my central AC. His fee was very fair. Previously another HVAC company (not from Home Advisor) told me the unit was unrepairable and needed to be replaced. I highly recommend Joeâ  s company All-in-One for your HVAC, plumbing and electrical service."
Response time2 hrs
9 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for All Bases Covered Mechanical
All Bases Covered Mechanical
4.6(
37
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairCentral A/C - Install+4 more

Serving Lagrangeville, NY and surrounding areas

Approved

In business since 1995

Free estimates

Warranties offered

"We are buying a home and needed to have the HVAC checked once we close on the house this company will be hired. Frank the owner was very responsive and worked with my schedule to inspected the system. Everyone I meet was knowledgeable and professional. I will recommend this company to my friends and family."
Response time6 hrs
13 neighbors recently requested a quote
Recommended by96%of homeowners
MDJ Heating & Air Conditioning
4.3(
57
)
Oil Furnace / Forced Air Heating System - RepairBoiler or Radiator Heating System - Repair or ServiceCentral A/C - Service or Repair+7 more

Serving Lagrangeville, NY and surrounding areas

Approved

In business since 2009

Emergency services offered

Small jobs welcome

"Called morning after storm and they were at the job by 1pm ! Regular rate ! Excellent work , professional and great price for the job ! Will be hiring agin to do my air conditioning next !"
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Clean Air Dream Team Inc.
Clean Air Dream Team Inc.
4.8(
38
)
Air Ducts & Vents - Clean

Serving Lagrangeville, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Emergency services offered

Warranties offered

"Andri arrived promptly and provided exceptional service. He was highly knowledgeable about my vent system and ensured that the area remained clean. I highly recommend Andri for future maintenance needs. Thank you Leontyne Brown"
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+17

Response time1 day
Response rate100%
3 neighbors recently requested a quote
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Heating and Air Conditioning FAQs, answered by experts

No. Your furnace does not run your air conditioner. Both units use the same system of ductwork to move conditioned air throughout your home, but you can have a furnace without having an air conditioner and vice versa. Furnaces are only for heating your home. You can buy a system that does both, however, like a split system or a heat pump (yes, heat pumps cool, too).

You will only need to refill your AC with refrigerant if it has a leak. Otherwise, a modern, well-maintained AC will most likely never need a recharge. You may notice a leak in an older system if your bills are higher, you hear a hissing sound, or if the air is blowing out hot.

An HVAC system typically lasts between 10 and 30 years, with an average lifespan of 15 to 25 years. The longevity of the system is influenced by factors such as the quality of the unit, usage frequency, local climate, and how well it is maintained. Regular maintenance, including cleaning, filter replacements, and professional inspections, can help maximize its lifespan. Different components within the system have varying life expectancies. For example:

  • Furnaces: 15 to 30 years

  • Boilers: 20 to 35 years

  • Air Conditioners (AC units): 12 to 20 years

  • Heat Pumps: 10 to 20 years

  • Ductless Mini-Splits: 10 to 30 years

There are ways to detect a refrigerant leak with several different testing methods. However, most homeowners can figure out something’s wrong with their AC unit by noticing these common signs:

  • Ice forming on the evaporator coil

  • Water leaks near the AC unit

  • Frequent hissing sounds

  • Increased electric bills

  • Unit takes longer than usual to cool

  • Unit is blowing hot air

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

The Lagrangeville, NY 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.