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  • Verified reviews icon440
    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"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+29

Response time7 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for Sync Mechanical, Inc.
Sync Mechanical, Inc.
5.0(
20
)
Central A/C - InstallGeothermal Heating or Cooling System - InstallBoiler or Radiator Heating System - Install or Replace+47 more

Serving Lagrangeville, NY and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"SYNC has been taking care of all our Heat and A/C needs for the last year. We have a complex heated floor system which left the other pros in our area dumbfounded. The SYNC crew came in and solved all the issues and wired smart controls without the slightest hesitation. 100% recommend SYNC, true pros!"
Heating and air conditioning equipment replacement
Heating and air conditioning equipment replacement
Additional Photos
Additional Photos
Additional Photos

+5

3 neighbors recently requested a quote
Recommended by95%of homeowners
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

"Had an oil to lp gas conversion. Needed to replace the boiler, existing hot water tank and remove the oil tank. Joe's Plumbing gave a great price, neat work, honest and easy to work with. The materials were high quality and they finished a head of schedule."
Response time2 days
6 neighbors recently requested a quote
Recommended by95%of homeowners
Affordable Heating & Cooling of NY Inc.
4.3(
53
)
Central A/C - Service or RepairOil Boiler or Radiator Heating System - RepairElectric Boiler or Radiator Heating System - Repair+15 more

Serving Lagrangeville, NY and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"All Seasons Comfort HVAC has done two different systems installation for me. They have also provided service work and regular maintenance on these systems. Their quality of service, their pricing, and the work that the licensed HVAC Technicians have done for me have always exceeded my expectations. Based on these past experiences, I highly recommended this company!"
Response time4 hrs
Response rate86%
10 neighbors recently requested a quote
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
11 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

"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 T. Webber Plumbing, Heating, Air & Electric
T. Webber Plumbing, Heating, Air & Electric
4.0(
204
)
Central A/C - Install

Serving Lagrangeville, NY and surrounding areas

Approved (Corporate)

In business since 1987

Free estimates

Warranties offered

"Although their estimate was a little bit higher than other companies T. Webber answered my questions thoroughly and were committed to doing everything above board and according to code. Since I have a strict building inspector this was very important to me. The sales person, the ACCA, the supervisor, the HVAC techs, the electricians, and the office personnel were polite, professional, top notch at their jobs, and made the entire process so much better. They dealt with the building inspector for me, filed the application and several technical reports as required, and took care of every aspect of the job. I recommend this company highly for their precision and attention to detail."
Bathroom Remodel
Bathroom Remodel
Bathroom Remodel
Bathroom Remodel
Bathroom Remodel

+1

Response time4 hrs
24 neighbors recently requested a quote
Recommended by90%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

Common signs of insufficient return air include uneven temperatures, with some parts of your home feeling hotter or colder than others, and noticeable differences in air pressure between rooms. You might also observe that more air is blowing in rooms closer to the AC unit. Leaky air ducts can also be a related issue or clue.

Yes, but they don’t feel the same as an AC-cooled room. You’ll feel cool, moist air, opposite from an HVAC system that dries the air as it cools. Ventless units also have less tonnage than alternatives like ductless and central air, which means they aren’t as capable of quickly cooling large spaces or circulating cold air.

Your central A/C unit should be professionally serviced and inspected at least once a year to ensure it operates properly and efficiently. This is best done before the peak cooling season. A full-service inspection by a qualified pro will typically include checking safety components for issues like carbon monoxide leaks, verifying cooling components and coolant levels, and inspecting electrical parts like fuses and wiring. Regular servicing enhances efficiency, mitigates potential problems, and maintains optimal performance. Because AC systems contain hazardous refrigerant, professional handling is essential.

Dirty filters are almost always the cause of poor airflow, so they should be regularly cleaned and then replaced as needed. The fan blades can also get dirty, so they should be cleaned when the unit is turned off. Make sure that the outdoor area around the back of the unit is unobstructed. Trees, shrubs, trash, and other objects could be too close to your unit.

Signs that your air conditioner capacitor is bad or failing include a range of symptoms. The AC unit may not turn on at all, or it might struggle to start before shutting down randomly or in the middle of a cooling cycle. You might hear a humming or banging noise when it attempts to start, or the compressor might hum without the unit actually running. Other indicators include a smell or smoke coming from the unit, the blower circulating room-temperature air instead of cold air, and an unexpected increase in your energy bills.

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.