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Find Air conditioning pros in Dover

Avatar for Air 1 HVAC, LLC

Air 1 HVAC, LLC

4.61(
64
)
•Approved Pro

Air 1 HVAC, LLC

4.61(
64
)
•Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
23 years of experience

Air 1 Heating and Cooling takes pride in our heating and air conditioning expertise. We ensure optimum quality and customer satisfaction, with every project. Call us for a free estimate on direct replacements and new installs of equipment. We offer 24 hour emergency service.

"They installed our unit in March 2015, and the unit induced motor was found to be defective in Nov 2015. They not only charged us for the service call but also charged us for the part which was under warranty. It was very unprofessional. The same part after less than 5 years failed again, and they took no responsibility for their workmanship. Customer service Person does not deal with the customer on the request. This time again they were charging us for the defective part and exorbitantly for the service call under the pretext that we did not sign a maintenance contract with them. So we did not finally go with them but went with another vendor who is far better and professional."

Kerman D on November 2020

Air 1 Heating and Cooling takes pride in our heating and air conditioning expertise. We ensure optimum quality and customer satisfaction, with every project. Call us for a free estimate on direct replacements and new installs of equipment. We offer 24 hour emergency service.

"They installed our unit in March 2015, and the unit induced motor was found to be defective in Nov 2015. They not only charged us for the service call but also charged us for the part which was under warranty. It was very unprofessional. The same part after less than 5 years failed again, and they took no responsibility for their workmanship. Customer service Person does not deal with the customer on the request. This time again they were charging us for the defective part and exorbitantly for the service call under the pretext that we did not sign a maintenance contract with them. So we did not finally go with them but went with another vendor who is far better and professional."

Kerman D on November 2020

Avatar for 1st Goal Heating and Cooling

1st Goal Heating and Cooling

4.10(
15
)
•Approved Pro

1st Goal Heating and Cooling

4.10(
15
)
•Approved Pro
Customers say: Quality work
12 years of experience
Free onsite estimate

1st Goal Heating and Cooling, LLC, located in Dover, New Jersey, is a full-service residential and commercial HVAC company. We offer HVAC system planning with upgrades, complete design accountability, installation, system performance and great value with top notch customer service.

"DO NOT HIRE. Liars, do not show up. The lady is rude. Charger extra for no reason."

Bella H on January 2024

1st Goal Heating and Cooling, LLC, located in Dover, New Jersey, is a full-service residential and commercial HVAC company. We offer HVAC system planning with upgrades, complete design accountability, installation, system performance and great value with top notch customer service.

"DO NOT HIRE. Liars, do not show up. The lady is rude. Charger extra for no reason."

Bella H on January 2024

Avatar for Advanced Heating & Air Conditioning

Advanced Heating & Air Conditioning

4.64(
76
)
•Approved Pro

Advanced Heating & Air Conditioning

4.64(
76
)
•Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
16 years of experience

Founded in 1984, Advanced Heating & Air Conditioning (AHAC) initially operated as Alpha Oil Company until 2000 when it transitioned exclusively to HVAC services. Established by brothers Lou and Danny Roerig, the business flourished under Danny's leadership until his retirement in 2009. The company, now helmed by nephews Louis & Nicholas, continued its upward trajectory by acquiring local HVAC businesses from 2010 to 2012, such as Advance Service Inc. & Ship Mechanical. Serving Warren, Hunterdon, and Middlesex Counties in New Jersey, as well as Lehigh and Northampton Counties in Pennsylvania, AHAC has built a strong reputation for exceptional customer service since its inception. Today, it remains committed to growth and customer satisfaction, adapting to meet the evolving needs of its expanding clientele.

"The tech called ahead to say we will be there in 35 minutes. They came on time! ( Between 10-12) efficient, knowledgeable and did a great job. Canâ t ask for better than that! Thank you!"

Carole C. C on September 2022

Founded in 1984, Advanced Heating & Air Conditioning (AHAC) initially operated as Alpha Oil Company until 2000 when it transitioned exclusively to HVAC services. Established by brothers Lou and Danny Roerig, the business flourished under Danny's leadership until his retirement in 2009. The company, now helmed by nephews Louis & Nicholas, continued its upward trajectory by acquiring local HVAC businesses from 2010 to 2012, such as Advance Service Inc. & Ship Mechanical. Serving Warren, Hunterdon, and Middlesex Counties in New Jersey, as well as Lehigh and Northampton Counties in Pennsylvania, AHAC has built a strong reputation for exceptional customer service since its inception. Today, it remains committed to growth and customer satisfaction, adapting to meet the evolving needs of its expanding clientele.

"The tech called ahead to say we will be there in 35 minutes. They came on time! ( Between 10-12) efficient, knowledgeable and did a great job. Canâ t ask for better than that! Thank you!"

Carole C. C on September 2022

Chris Merring Heating and Air Conditioning

5.00(
2
)
•Approved Pro

Chris Merring Heating and Air Conditioning

5.00(
2
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
37 years of experience

We have over 30 years of industry experience and are dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company foundation is built on three generations of honesty and integrity. We specialize in central A/C, heating and furnace systems, in addition to a variety of HVAC-related projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction!

"He is courteous and treats your home like it is his own and presents with options when it comes to prices."

Carla D on March 2018

We have over 30 years of industry experience and are dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company foundation is built on three generations of honesty and integrity. We specialize in central A/C, heating and furnace systems, in addition to a variety of HVAC-related projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction!

"He is courteous and treats your home like it is his own and presents with options when it comes to prices."

Carla D on March 2018

Cleaning Help

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro

Cleaning Help

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro
12 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Urdu, Hindi, Hijabi. Cash, CashApp PayPal.

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Urdu, Hindi, Hijabi. Cash, CashApp PayPal.

Avatar for J&M Cooling/Heating, LLC

J&M Cooling/Heating, LLC

4.74(
21
)
•Approved Pro

J&M Cooling/Heating, LLC

4.74(
21
)
•Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
19 years of experience

J&M Cooling/Heating, LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity, bound by fairness, honesty, and responsibility for all of our jobs. There is no job to big or too small for J&M Cooling/Heating, LLC. Here at J & M we are dedicated to customer satisfaction. We are proud to provide the highest quality service to our customers with over 35 years of experience. We have knowledge and training in numerous aspects in this field to meet all of your HVAC needs. Owner operated and family run, we aim to please all our valued customers. Please give us a call for a free estimate today!

"J&M Cooling and Heating is an example of a very well run service company. Their staff is well trained and polite. Their prices are competitive. Their office follows up when the job is completed with a phone call to make sure we are pleased and is there anything we need. We highly recommend them! Natalie and Richard Peck, North Caldwell."

Natalie and Richard P on March 2024

J&M Cooling/Heating, LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity, bound by fairness, honesty, and responsibility for all of our jobs. There is no job to big or too small for J&M Cooling/Heating, LLC. Here at J & M we are dedicated to customer satisfaction. We are proud to provide the highest quality service to our customers with over 35 years of experience. We have knowledge and training in numerous aspects in this field to meet all of your HVAC needs. Owner operated and family run, we aim to please all our valued customers. Please give us a call for a free estimate today!

"J&M Cooling and Heating is an example of a very well run service company. Their staff is well trained and polite. Their prices are competitive. Their office follows up when the job is completed with a phone call to make sure we are pleased and is there anything we need. We highly recommend them! Natalie and Richard Peck, North Caldwell."

Natalie and Richard P on March 2024

Avatar for MDL Electric, LLC

MDL Electric, LLC

4.81(
67
)
•Approved Pro

MDL Electric, LLC

4.81(
67
)
•Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
10 years of experience

is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business

"They did a good job replacing the 220v outlet to 120v. Good pricing too."

Maria Cecilia R on May 2024

is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business

"They did a good job replacing the 220v outlet to 120v. Good pricing too."

Maria Cecilia R on May 2024

Avatar for ABCastello's Heating and Cooling

ABCastello's Heating and Cooling

4.81(
87
)
•Approved Pro

ABCastello's Heating and Cooling

4.81(
87
)
•Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
20 years of experience

A family-owned and operated business, with over 25 years of experience. ABCastello's Heating and Air conditioning, gas piping, oil to gas conversions, oil furnace installation and repair. Give us a call today and speak to someone to get professional advice on your next project. We look forward to working with you! BOOK YOUR APPOINTMENTS NOW AT WWW.ABCASTELLOSHVAC.COM

"Desmond did a great job completing service work on my oil burner. Clean, quick and knowable of his work. I would and still use them for my boiler."

Angelo B on March 2025

A family-owned and operated business, with over 25 years of experience. ABCastello's Heating and Air conditioning, gas piping, oil to gas conversions, oil furnace installation and repair. Give us a call today and speak to someone to get professional advice on your next project. We look forward to working with you! BOOK YOUR APPOINTMENTS NOW AT WWW.ABCASTELLOSHVAC.COM

"Desmond did a great job completing service work on my oil burner. Clean, quick and knowable of his work. I would and still use them for my boiler."

Angelo B on March 2025

Avatar for Ray's HVAC

Ray's HVAC

4.79(
183
)
•Approved Pro

Ray's HVAC

4.79(
183
)
•Approved Pro
Customers say: True professional
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
146 local quotes requested

With 25 years experience in the HVAC industry call Ray's HVAC directly @ 201-780-3062 for your industry expert in Northern/ middle New Jersey. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a family owned and operated business you can trust that we will treat your home or Buisness as we would treat our own.

"The tech new his trade , called let me know what time they were going to arrive .. fixed the problem.and didn’t try to sell me on a yr to 2 yr contract… it’s nice …being a tech myself in another field where a tech comes figures out the the problem and fixes it .. Great job … definitely recommend "

Matthew D on October 2025

With 25 years experience in the HVAC industry call Ray's HVAC directly @ 201-780-3062 for your industry expert in Northern/ middle New Jersey. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a family owned and operated business you can trust that we will treat your home or Buisness as we would treat our own.

"The tech new his trade , called let me know what time they were going to arrive .. fixed the problem.and didn’t try to sell me on a yr to 2 yr contract… it’s nice …being a tech myself in another field where a tech comes figures out the the problem and fixes it .. Great job … definitely recommend "

Matthew D on October 2025

Avatar for RJK Mechanical Contractors, LLC

RJK Mechanical Contractors, LLC

4.91(
33
)
•Approved Pro

RJK Mechanical Contractors, LLC

4.91(
33
)
•Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
22 years of experience

We're dedicated to providing our clients with the very best in service, installation, and repair for your heating and cooling needs. We are a locally owned and operated company that values honesty and integrity. We specialize in central A/C and cooling systems, as well as heating and furnace systems. We take pride in the quality of our work, and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction! Visit us @ RJKMECH.com

"Short version: Professionalism, competency, and integrity is what you can expect from RJK. When our AC stopped working, another company came out to investigate and we were quoted an outrageous temporary repair cost and were advised to replace the whole system. We called RJK and they called back almost immediately. Upon arriving, they advised that a whole system replacement would be unnecessary for starters. But before even doing that, they wanted to have their techs double check that the system was truly in need of any replacement. Turns out the fix was straightforward and within 30 minutes the system was repaired at a fraction of the cost of the original contractor's quoted repair cost and definitely cheaper than a whole new system."

Steve T on July 2022

We're dedicated to providing our clients with the very best in service, installation, and repair for your heating and cooling needs. We are a locally owned and operated company that values honesty and integrity. We specialize in central A/C and cooling systems, as well as heating and furnace systems. We take pride in the quality of our work, and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction! Visit us @ RJKMECH.com

"Short version: Professionalism, competency, and integrity is what you can expect from RJK. When our AC stopped working, another company came out to investigate and we were quoted an outrageous temporary repair cost and were advised to replace the whole system. We called RJK and they called back almost immediately. Upon arriving, they advised that a whole system replacement would be unnecessary for starters. But before even doing that, they wanted to have their techs double check that the system was truly in need of any replacement. Turns out the fix was straightforward and within 30 minutes the system was repaired at a fraction of the cost of the original contractor's quoted repair cost and definitely cheaper than a whole new system."

Steve T on July 2022

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FAQs for air conditioning projects in Dover, NJ

You can identify your system's refrigerant type by examining the data plate or label often located on the outdoor condensing unit. Look for "R-22" or "HCFC-22" in the specifications. 

Manufacturing date provides another clue—systems produced before 2010 often use R-22, while newer units utilize alternative refrigerants. If the label is missing or unclear, a qualified HVAC technician can determine your refrigerant type during a service inspection.

Federal regulations prohibit the purchase and handling of R-22 refrigerant without proper EPA certification. These restrictions exist because R-22 contributes to ozone depletion when released into the atmosphere and requires specialized handling procedures. 

Additionally, improper refrigerant charging can damage your system and create safety hazards. Professional technicians have the training, equipment, and legal authorization to properly diagnose, repair, and recharge your system.

Air conditioning systems require approximately two to four pounds of R-22 per ton of cooling capacity, with three pounds per ton being the average. For example, a 3-ton system needs about nine pounds of refrigerant for a complete charge. However, the exact amount varies by manufacturer, model, and system configuration. A professional technician will determine the precise charge required for your specific equipment.

While technically possible to retrofit some R-22 systems to use alternative refrigerants, these conversions require substantial modifications to system components and are rarely cost-effective. The compressor, expansion valve, and sometimes the entire coil system would need replacement or adaptation. Most homeowners find that investing in a complete system upgrade provides better long-term value and performance than attempting conversion of aging equipment.

Though new production of R-22 ended in 2020, reclaimed and recycled supplies remain available but are steadily decreasing. The EPA's final phaseout deadline extends to 2030, but practical availability may become severely limited well before that date. As supplies continue to diminish, expect prices to rise accordingly. Homeowners with R-22 systems should begin planning for eventual system replacement as part of their long-term home maintenance strategy.

The Dover, NJ homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.

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