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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%
2 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
7 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 - RepairHeat Pump - Install or Replace+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
11 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

"I hired MDJ to look at the options we had with our old central a/c unit. After considering everything we decided to install a new unit. MDJ did not pressure me in any way, & they were quick to respond. Our new a/c is installed & working fine so far. It only took 3 days in total to meet up, & get the new unit installed. I'm very glad we found MDJ."
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

If your AC condenser is nearing the end of its life, it might leak fluid or make loud or unusual sounds (like grinding or hissing). You might also notice that it isn’t heating your home as evenly or effectively as it once did. Also, an aging condenser will have to work harder to cool your home, which may force it to use more power and drive up your utility bills.

The size window AC you need depends on the BTU and the size of the room you’re cooling. For a room with 8-foot ceilings, look for about 20 BTU per square foot of the room. For example, a 12-by-12-foot room should have an air conditioner with 2,880 BTU. You can buy something slightly more powerful, but don’t overshoot the BTU for a small room, or you’ll waste energy and have higher bills.

Some AC filters, known as reusable filters, can be cleaned and reinserted. Most AC filters, however, are disposable and cannot be cleaned. 

The cost to add Freon to an AC ranges from $100 to $350. It can increase up to $600 for large AC units requiring much more coolant. The cost also depends on how much refrigerant your unit needs. If only a small amount of Freon leaked out, your cost would be on the lower side. A complete replacement of all the required refrigerant can get expensive.

If both your furnace and AC unit are more than a decade old, it may be a good idea to replace both of them. However, your furnace can last up to three decades, and your air conditioner can typically last up to 15 years, so consulting with a pro before deciding to replace both of them is best. If it’s before that time limit for each, you can fix many problems with repairs or just replace one.

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.