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TRUSTED BY NORTHFIELD, NJ HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon428
    Verified heating and air conditioning services reviews

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

Avatar for Laury Heating Cooling & Plumbing
Laury Heating Cooling & Plumbing
4.8(
184
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - Install+47 more

Serving Northfield, NJ and surrounding areas

Approved

In business since 1945

Free estimates

Emergency services offered

"We use Laury for repair and maintenance of our heating and cooling units for our rental properties and each time we need something done, the staff at Laury never cease to provide quality service. The technicians are always knowledgeable, thorough, courteous and pleasant. We recently had an HVAC system installed in one of our units and the home is rather large and is over 100 years old and there was not a whole lot of empty space to work with. The guys at Laury were able to install the system and all of the duct work and components involved neatly with the age and make-up of the home in-mind. They were pleasant throughout the entire installation which took almost a week. They were always on time and always communicated the process with us. Laury is a trusted business with many years of experience behind them. Prices are also extremely reasonable given the cost of services right now. Warren you are the man!"
High efficiency Carrier condenser.
High efficiency Carrier Infinity gas furnace with variable speed blower.
High efficiency Carrier gas furnace and Trion Air Bear filter.
High efficiency Carrier heat pump installation.
Ductwork installation.

+13

Response time10 mins
Response rate100%
24 neighbors recently requested a quote
Robinson Mechanical, LLC
4.9(
62
)
Central A/C - InstallCentral A/C - Service or RepairDucts & Vents - Install or Replace+6 more

Serving Northfield, NJ and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Itâ s a local fledgling company. Theyâ re trying very hard to accommodate their customers. Communication is desirable but in the end they came thorough with 5 stars. I would recommend them to anyone looking to have their HVAC needs."
Caruso Air Handler
Caruso Condenser
Response time7 hrs
19 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Pure Aire Professional Duct Cleaning
Pure Aire Professional Duct Cleaning
4.7(
119
)
Air Ducts & Vents - Clean

Serving Northfield, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1997

Free estimates

Emergency services offered

"Ed & Cris arrived exactly at 1PM when they said. They hauled in a heavy suction vacuum and attached to both supply and then return lines. Showed me the dirt collected in the first stage of the cleaner. Both men worked hard and did an excellent job. Was not ready for the dust throughout the house but they did warn me of it. We just finished a dirty tile job so the vent cleaning was a natural first. This is my second Angie's list contractor and we are contented.
"
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+5

Response time2 days
Response rate100%
2 neighbors recently requested a quote
Avatar for Heating Specialties, Inc.
Heating Specialties, Inc.
4.4(
96
)
Central A/C - Service or RepairOil Furnace / Forced Air Heating System - RepairGas Boiler or Radiator Heating System - Repair+3 more

Serving Northfield, NJ and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"Heating Specialties workers arrived on time and were very professional. The crew leader reviewed all of the work with me so I understood everything about my new AC system and how it worked. The were very respectful of my property and cleaned every work area before leaving. They trained my on how to program the new theromstats and made sure the I knew how to override the system should I ever have an issue with the zoned AC. I will use them for all of my heating/air conditioning needs for this point on. This is a five star operation."
Boiler Replacement
Boiler Replacement
Boiler Replacement
Boiler Replacement
Boiler Replacement

+12

2 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for GS Mechanical
GS Mechanical
4.6(
57
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairElectric Boiler or Radiator Heating System - Repair+6 more

Serving Northfield, NJ and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"George was prompt and seemed very concerned about providing top notch service. He did a great job of explaining how my HVAC system was supposed to work and how the servicing would correct the problem. I also appreciate that he didn’t try to pressure me into more expensive solutions."
Indoor HVAC Equipment
Outdoor Equipment
Gas Fireplace Renovation
Gas Fireplace Renovation
2 ton high efficiency ductless heat pump with surg

+12

Response time7 hrs
9 neighbors recently requested a quote
Recommended by92%of homeowners
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Showing 1-10 of 248
Heating and Air Conditioning FAQs, answered by experts

On average, an AC unit lasts between 10 and 20 years. However, the specific lifespan depends on the type of unit, how often it's used, the local climate, and the quality of maintenance. Central AC units typically last 12 to 17 years, while window units have a shorter lifespan of 8 to 10 years. Portable AC units last about 5 to 10 years, and ductless mini-split systems can last up to 20 years. To extend the life of your AC unit, it's important to perform regular maintenance, such as replacing filters, cleaning coils, and scheduling annual professional tune-ups.

Air conditioners can stop working in the middle of the night for many reasons. Your local power grid might shut down late at night. Power surges can also trip your breakers if too much power is being used in the area at the time. If your AC is connected to a digital thermostat, it gets naturally cooler at night, so the outdoor temperature might dip below the automated setting to turn the cooling system off.

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.

You should know the main components of an air conditioner: the condenser coils, evaporator coils, drip pan, AC filter, ducts, and refrigerant. Each part plays a key role in the performance and safety of your AC system. When tracking the source of AC issues or odors, it helps to know where to look. Your outdoor unit houses your condenser coils, fan, and compressor. Your indoor unit houses your evaporator coils, drain lines, and filter, and it connects to your ductwork. 

The standard rule for return duct sizing is that the return vent should be the same size or larger than the supply vent. This will ensure balanced airflow in your home and reduce strain on your HVAC system.

The Northfield, NJ 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.