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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

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
18 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 RepairGas Boiler or Radiator Heating System - RepairGas Furnace / Forced Air 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

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

Serving Northfield, NJ and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"I can't thank GS Mechanical enough for their prompt and exceptional service. Their technician John was not only professional and courteous but also extremely knowledgeable. He quickly diagnosed the issue and made the repair. He had all the necessary parts on hand and repair work was flawless. I'm truly grateful for their exceptional service. If you are looking for reliable HVAC company that goes above and beyond - I highly recommend them! They deserve every one of these 5 stars!"
Indoor HVAC Equipment
Outdoor Equipment
Gas Fireplace Renovation
Gas Fireplace Renovation
2 ton high efficiency ductless heat pump with surg

+12

Response time7 hrs
7 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Wekz Multiservice LLc
Wekz Multiservice LLc
5.0(
97
)
Thermostat - Install or ReplaceThermostat - Repair or Reprogram

Serving Northfield, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Emergency services offered

Reliable Solutions for Your Home Needs\nAt WEKZ MULTISERVICE LLC, we specialize in delivering high-quality handyman services tailored to meet the unique needs of each of our clients. Whether you require minor repairs, remodeling, or property maintenance, we have the expertise to handle a wide range of jobs efficiently and with precision.\nOur Areas of Expertise\nOur team is skilled in a variety of services, including:\nElectrical Repairs & Installations: From replacing outlets to installing Security Cameras, TV’s or new fixtures, we ensure all work is done safely and up to code.\nPlumbing Services: Whether it's fixing leaks, replacing drains, or remodeling bathrooms, we guarantee reliable, long-lasting solutions.\nCarpentry & Decking: We offer repairs, custom woodwork, and deck installations that enhance both the functionality and aesthetics of your home.\nFlooring & Tiling: Installation of vinyl, tile, and other flooring options, ensuring seamless finishes and a transformation of your space.\nGeneral Home Repairs: From drywall repairs to gutter cleaning, no task is too small, and each is handled with care and professionalism.\nCustomer Satisfaction First\nWe take pride in prioritizing customer satisfaction. Our philosophy is simple: your happiness is our success. That means:\nTransparent Communication: We keep you informed every step of the way, ensuring there are no surprises.\nTimely Service: We understand the importance of your time, so we strive to complete projects on schedule without compromising quality.\nAttention to Detail: Every job is executed with precision and care, leaving your home in better shape than we found it.\nWhat Makes Us Unique?\nWe stand out from other handyman services by offering:\nPersonalized Service: We don’t believe in one-size-fits-all solutions. Every project is customized to suit your specific needs and preferences.\nCode Compliance: We stay up-to-date with local building codes and regulations, ensuring that all our work meets or exceeds standards

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+45

Response time1 day
Response rate100%
Recommended by42%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

For washable or electrostatic air conditioner filters, you can soak and rinse them with water. If you rinse the filter with water, make sure to use a faucet, shower head, or garden hose with a gentle water pressure setting, as strong water pressure could damage the filter.

But for disposable filters, water could ruin the filter, even allowing mold to grow in the filter. Instead, these filters should be replaced.

If left untreated, a frozen AC unit can lead to costly damage, especially to the compressor and evaporator coils. When ice forms on the evaporator coils, they become brittle and more susceptible to breaking. Plus, a freeze makes your AC system much less efficient, which means it's wasting energy and costing you more in your monthly energy bills.

There are a few ways to determine if a vent is open or closed. You can inspect the vent and examine the position of the fins. If there are spaces between them, the vent is open. If the fins are flat and touching, the vent is closed. You can also stand under the vent when the system is running to see if you feel air flowing through it.

You should plan to change your AC unit's filter every one to three months, depending on the manufacturer's recommendations. You should also clean the coils at least once per year, but if you have pets or someone in your household has allergies, you might need to clean them more often. Fortunately, many pros will clean the coils and change the filter for you during an inspection, which you should schedule once or twice per year.

A common HVAC rule is that for every 500 to 600 square feet of living space, you need 1 ton of heating or cooling capacity. Now that you know this common rule, you also need to know that it isn’t very accurate, and a dedicated pro wouldn’t use it for your home. If you talk to a pro who won’t or can’t perform a proper Manual J calculation, consider hiring someone more thorough.

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.