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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
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 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
9 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Wekz Multiservice LLc
Wekz Multiservice LLc
5.0(
88
)
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 by46%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

There are two main reasons your furnace and AC are turning on at the same time. The first could be that you’re confusing the furnace with the blower. The blower is located in the furnace and will turn on to distribute cool air from the air conditioner through the ductwork in the home. This is normal. If the actual furnace is turning on at the same time as the AC and hot and cool air are coming into the home, it could be a result of incorrect writing to a new thermostat or new systems.

Yes, high-efficiency models reduce environmental impact with lower energy use.

Turn your system off when you're toasty or when you're out to prevent unnecessary wear. Using the timer on your thermostat so that it switches off when it reaches a certain temperature or turns on just before you get back from work is best. An annual maintenance contract can be helpful to ensure your system receives these important services at regular intervals.

A home AC unit provides anywhere from one-half to five tons of cooling and requires approximately two to four pounds of refrigerant per ton of cooling. At approximately five to 10 minutes to fill one pound of refrigerant, a home that requires three tons of cooling will take about six to 12 pounds of refrigerant and approximately 30 minutes to two hours to completely recharge the unit.

The cost of annual maintenance depends on the type of HVAC system you have. AC service typically costs an average of $200 but ranges from $100 to $550. If your system needs repairs, the price will vary significantly depending on what needs fixing. However, addressing the issues as they arise can prevent further damage to your unit and keep it operating efficiently for much longer.

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.