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TRUSTED BY DELAWARE, NJ HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon175
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Delaware

Avatar for D.M. Solutions, LLC

D.M. Solutions, LLC

4.94(
61
)
Approved Pro

D.M. Solutions, LLC

4.94(
61
)
Approved Pro
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
7 years of experience

DM Solutions LLC, takes great pride in the company's experience, expertise, quality, and customer service that we as a team provide to meet our consumers' needs. It is our mission to provide excellent workmanship and total customer satisfaction from start to finish of every project. In order to understand the needs and expectations of our customers, we diligently work and communicate with every customer in a professional manner. Give us a call today!

"They Were excellent!"

Sharon H on December 2025

DM Solutions LLC, takes great pride in the company's experience, expertise, quality, and customer service that we as a team provide to meet our consumers' needs. It is our mission to provide excellent workmanship and total customer satisfaction from start to finish of every project. In order to understand the needs and expectations of our customers, we diligently work and communicate with every customer in a professional manner. Give us a call today!

"They Were excellent!"

Sharon H on December 2025


Avatar for Dawson Mechanical Contracting

Dawson Mechanical Contracting

4.84(
122
)
Approved Pro

Dawson Mechanical Contracting

4.84(
122
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
37 years of experience

We are a BPI Building Performance Institute Accredted Plumbing and HVAC company, We are licensed plumbers and I am a certified plumbing instructor and fire inspector I also have 2 Backflow testing certifiactions. We do the highest quality residential and commercial work with my highly trained staff. I am the past president of the N.J. State league of Master plumbers for 2010-2011

"He came at the scheduled time with the proper materials and did the job in highly proficient manner installed the hot water, circulator so that the controls were clearly visible. He explained the operation very clearly. He has my highest recommendation."

Mark R on November 2025

We are a BPI Building Performance Institute Accredted Plumbing and HVAC company, We are licensed plumbers and I am a certified plumbing instructor and fire inspector I also have 2 Backflow testing certifiactions. We do the highest quality residential and commercial work with my highly trained staff. I am the past president of the N.J. State league of Master plumbers for 2010-2011

"He came at the scheduled time with the proper materials and did the job in highly proficient manner installed the hot water, circulator so that the controls were clearly visible. He explained the operation very clearly. He has my highest recommendation."

Mark R on November 2025


Avatar for MSD Heating & Cooling

MSD Heating & Cooling

4.92(
60
)
Approved Pro

MSD Heating & Cooling

4.92(
60
)
Approved Pro
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
23 years of experience

NOTE I M SORRY FOR ALL , WE NOT DOING ANY TYPE OF PLUMBING, WORK. OIL FURNACE,OIL BOILER , OIL HOT WATER HEATER, WE ARE DOING GAS FURNACE, AND HEAT PUMP SYSTEM HEATING AND AIR CONDITIONING.THAT'S ALL , WE DONT DO BASEBOARD, RADIANT,ANY OIL APPLIANCE OR PLUMBING WORK . THANKS FOR UNDERSTANDING. MSD Heating and Cooling is now offering free estimates for all AC replacements and new installations. We have been in the business for over 18 years and we've been lucky enough to learn a thing or two over those years. We've even worked hard to make sure that our staff knows the most up-to-date information about all of your heating and cooling needs. Keeping you cool and warm is our goal!

"Reasonable price great work friendly and very clean staff"

Huseyin a on May 2022

NOTE I M SORRY FOR ALL , WE NOT DOING ANY TYPE OF PLUMBING, WORK. OIL FURNACE,OIL BOILER , OIL HOT WATER HEATER, WE ARE DOING GAS FURNACE, AND HEAT PUMP SYSTEM HEATING AND AIR CONDITIONING.THAT'S ALL , WE DONT DO BASEBOARD, RADIANT,ANY OIL APPLIANCE OR PLUMBING WORK . THANKS FOR UNDERSTANDING. MSD Heating and Cooling is now offering free estimates for all AC replacements and new installations. We have been in the business for over 18 years and we've been lucky enough to learn a thing or two over those years. We've even worked hard to make sure that our staff knows the most up-to-date information about all of your heating and cooling needs. Keeping you cool and warm is our goal!

"Reasonable price great work friendly and very clean staff"

Huseyin a on May 2022


Avatar for Universe Home Services

Universe Home Services

4.74(
401
)
Approved Pro

Universe Home Services

4.74(
401
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
71 years of experience

Since 1954, Universe Home Services has been proudly serving the Nassau County community and customers throughout the entire region. With Universe Home Services, one call solves it all! Their highly trained technicians offer everything from heating and air conditioning to plumbing to appliance repair and electrical services on Long Island and beyond. Whether you’re dealing with an inefficient heating system, a noisy air conditioner, clogged toilet, broken dishwasher, or outdated electrical service panel, you can get the fast, affordable service you need with Universe Home Services. They go above and beyond to ensure that you’re completely satisfied with the quality of their work, offering service guarantees and parts and labor guarantees on new HVAC installations. As a family owned and operated company, Universe Home Services believes in top-quality customer service. They always treat you and your property with respect, working quickly, cleanly, and efficiently to minimize your inconvenience and leave your home in pristine condition. With more than 60 years of experience under their belt, and a commitment to unmatched quality, honesty, and expertise, Universe Home Services is the trusted name for heating, air conditioning, electrical, plumbing, and appliance repair on Long Island and beyond! Call today!

"The plumber came out explained the whole process & provided me with a reasonable price that was in my budget & the next day they installed the new system. Mike was fantastic he walked me thru the whole process very neat & professional. The installation was fast & complete great job well worth the money"

Anthony G on November 2025

Since 1954, Universe Home Services has been proudly serving the Nassau County community and customers throughout the entire region. With Universe Home Services, one call solves it all! Their highly trained technicians offer everything from heating and air conditioning to plumbing to appliance repair and electrical services on Long Island and beyond. Whether you’re dealing with an inefficient heating system, a noisy air conditioner, clogged toilet, broken dishwasher, or outdated electrical service panel, you can get the fast, affordable service you need with Universe Home Services. They go above and beyond to ensure that you’re completely satisfied with the quality of their work, offering service guarantees and parts and labor guarantees on new HVAC installations. As a family owned and operated company, Universe Home Services believes in top-quality customer service. They always treat you and your property with respect, working quickly, cleanly, and efficiently to minimize your inconvenience and leave your home in pristine condition. With more than 60 years of experience under their belt, and a commitment to unmatched quality, honesty, and expertise, Universe Home Services is the trusted name for heating, air conditioning, electrical, plumbing, and appliance repair on Long Island and beyond! Call today!

"The plumber came out explained the whole process & provided me with a reasonable price that was in my budget & the next day they installed the new system. Mike was fantastic he walked me thru the whole process very neat & professional. The installation was fast & complete great job well worth the money"

Anthony G on November 2025


"Excellent and trustworthy"

Nicholas S on November 2024

R.A.P. Electric Co. Inc. has been providing quality electrical installation for over 35 years. We have focused on the philosophy of "THE CUSTOMER COMES FIRST." We provide all phases of electrical work.

"Excellent and trustworthy"

Nicholas S on November 2024


Avatar for Speer Air

Speer Air

4.70(
151
)
Approved Pro

Speer Air

4.70(
151
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
67 years of experience

The Speer family started their company in 1900 selling coal and oil to residents and businesses in Northern New Jersey. Speer Air Conditioning was formed in 1958 and incorporated in 1966. Since then Speer Air has attained a reputation as one of the top heating and air conditioning companies in New Jersey. We average between 35 and 50 employees seasonally. We are a Carrier Factory Authorized Dealer (FAD) and have a New Jersey Home Improvement Contractor's license, 13VH00978100 as well as a New Jersey Electrical license, 14873. We provide complete HVAC services as well as electrical services. Speer Air is also a Generac Home Stand-by generator dealer. We also will give a $100 discount in addition to Speer Air discounts and the many utility rebate programs that are available. We look forward to serving you and offer a 100% satisfaction guarantee .

"Changing my 5 star review to 2 stars. We have had a HE Boiler as well as a AC/Heat Pump installed by them. Unfortunately we needed service today. I was willing to pay for Emergency service. They said they couldn't make it out for 14 days, because we did not have a service contract. Spent about $25k for the installations. Which apparently means nothing to them What makes matters worse, the Emergency Service we paid through another HVAC provider was only necessary because of an issue they created during the installation. During the installation Speer Air originally ran the line for the residual pump over the copper hot water line. Which over time burned through the residual line, and then cause a hole and leak on the copper pipe."

Richard K on November 2023

The Speer family started their company in 1900 selling coal and oil to residents and businesses in Northern New Jersey. Speer Air Conditioning was formed in 1958 and incorporated in 1966. Since then Speer Air has attained a reputation as one of the top heating and air conditioning companies in New Jersey. We average between 35 and 50 employees seasonally. We are a Carrier Factory Authorized Dealer (FAD) and have a New Jersey Home Improvement Contractor's license, 13VH00978100 as well as a New Jersey Electrical license, 14873. We provide complete HVAC services as well as electrical services. Speer Air is also a Generac Home Stand-by generator dealer. We also will give a $100 discount in addition to Speer Air discounts and the many utility rebate programs that are available. We look forward to serving you and offer a 100% satisfaction guarantee .

"Changing my 5 star review to 2 stars. We have had a HE Boiler as well as a AC/Heat Pump installed by them. Unfortunately we needed service today. I was willing to pay for Emergency service. They said they couldn't make it out for 14 days, because we did not have a service contract. Spent about $25k for the installations. Which apparently means nothing to them What makes matters worse, the Emergency Service we paid through another HVAC provider was only necessary because of an issue they created during the installation. During the installation Speer Air originally ran the line for the residual pump over the copper hot water line. Which over time burned through the residual line, and then cause a hole and leak on the copper pipe."

Richard K on November 2023


Mann's Heating & AC Inc

4.90(
41
)
Approved Pro

Mann's Heating & AC Inc

4.90(
41
)
Approved Pro
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
61 years of experience

When it comes to indoor comfort, you and your family deserve only the best. But you also want a quality heating and air conditioning system that provides value as well as comfort. This is where Manns Heating and Air Conditioning Inc comes in. We're proud of our years of service in Perth Amboy, providing residential and commercial customers alike with complete sales, service, and installation of high quality heating and air conditioning systems from Carrier. Our full service mechanical technicians are on the job quickly, thanks to our fleet of radio-dispatched trucks. And at Manns Heating and Air Conditioning Inc, we repair all makes and models. Be sure to ask your Manns Heating and Air Conditioning Inc representative about the availability of financing which can help you make your dream of year round comfort come true.

"From the estimate to the final installation you won’t find a more professional company. They installed a new carrier furnace and air conditioner and did an excellent job. I highly recommend them for any of your HVAC needs."

John Y on October 2022

When it comes to indoor comfort, you and your family deserve only the best. But you also want a quality heating and air conditioning system that provides value as well as comfort. This is where Manns Heating and Air Conditioning Inc comes in. We're proud of our years of service in Perth Amboy, providing residential and commercial customers alike with complete sales, service, and installation of high quality heating and air conditioning systems from Carrier. Our full service mechanical technicians are on the job quickly, thanks to our fleet of radio-dispatched trucks. And at Manns Heating and Air Conditioning Inc, we repair all makes and models. Be sure to ask your Manns Heating and Air Conditioning Inc representative about the availability of financing which can help you make your dream of year round comfort come true.

"From the estimate to the final installation you won’t find a more professional company. They installed a new carrier furnace and air conditioner and did an excellent job. I highly recommend them for any of your HVAC needs."

John Y on October 2022


Avatar for All Weather Heating & Cooling

All Weather Heating & Cooling

4.68(
60
)
Approved Pro

All Weather Heating & Cooling

4.68(
60
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
56 years of experience

All Weather Heating & Cooling has been serving Nassau & Suffolk County of Long Island since 1969. We are now celebrating 56 years of exceeding customer expectations. All Weather provides sales, installation, service and maintenance of residential and commercial heating, air conditioning & water filtration systems.

"They installed a minisplit cooling system, with 3 exchanges June 2021. Since then it is not operating the way it should. In my bedroom with the door closed at night on cool at 70 degrees the humidity goes up to 80%. I wake up uncomfortable, change it from cool to dry mode. The humidity will go down into the 50% range but the temperature drops down to 62 or less! So in cool or dry mode I can't get a good nights sleep! They come and look at it and tell me everything is fine. I'm going to buy a window air conditioner tomorrow which seems insane because i spent $10,000 on this minisplit AC system!"

JIM G on June 2023

All Weather Heating & Cooling has been serving Nassau & Suffolk County of Long Island since 1969. We are now celebrating 56 years of exceeding customer expectations. All Weather provides sales, installation, service and maintenance of residential and commercial heating, air conditioning & water filtration systems.

"They installed a minisplit cooling system, with 3 exchanges June 2021. Since then it is not operating the way it should. In my bedroom with the door closed at night on cool at 70 degrees the humidity goes up to 80%. I wake up uncomfortable, change it from cool to dry mode. The humidity will go down into the 50% range but the temperature drops down to 62 or less! So in cool or dry mode I can't get a good nights sleep! They come and look at it and tell me everything is fine. I'm going to buy a window air conditioner tomorrow which seems insane because i spent $10,000 on this minisplit AC system!"

JIM G on June 2023


Avatar for Advanced Professional Management, LLC

Advanced Professional Management, LLC

4.61(
726
)
Approved Pro

Advanced Professional Management, LLC

4.61(
726
)
Approved Pro
Customers say: Quick response
26 years of experience
Emergency services offered

Efficient and Honest, Advanced Professional’s has become a reputable and well-known service provider. We are fully licensed and insured so our team is up for every job, whether it is high-quality heating, plumbing, air conditioning, or managing general contractor projects (residential, commercial and industrial) we provide the skills and experience our clients have come to expect available 24/7. We want our customers to be satisfied with our work. When it comes to the job we don’t see our clients as just people we service, we treat them like family.

"Excellent job??????. Excellent customer service and very courteous. Left work area very clean and tidy."

Shirley D on December 2023

Efficient and Honest, Advanced Professional’s has become a reputable and well-known service provider. We are fully licensed and insured so our team is up for every job, whether it is high-quality heating, plumbing, air conditioning, or managing general contractor projects (residential, commercial and industrial) we provide the skills and experience our clients have come to expect available 24/7. We want our customers to be satisfied with our work. When it comes to the job we don’t see our clients as just people we service, we treat them like family.

"Excellent job??????. Excellent customer service and very courteous. Left work area very clean and tidy."

Shirley D on December 2023


Avatar for Ryan & Company

Ryan & Company

4.48(
64
)
Approved Pro

Ryan & Company

4.48(
64
)
Approved Pro
Customers say: Super punctual
76 years of experience
Free onsite estimate

We are a Family owned & operated business. Ryan & Co.,Inc. is a full service Plumbing, Heating and Cooling repair and installation company established in 1949 with a genuine commitment to professional, affordable & personalized service.

"Great job guys. Lovely working with them"

Robert H on July 2024

We are a Family owned & operated business. Ryan & Co.,Inc. is a full service Plumbing, Heating and Cooling repair and installation company established in 1949 with a genuine commitment to professional, affordable & personalized service.

"Great job guys. Lovely working with them"

Robert H on July 2024

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Heating and Air Conditioning questions, answered by experts

Indications of an HVAC problem include inconsistent heating or cooling throughout your home, unpredictable temperature changes, or inadequate air flow from vents. Abnormal sounds such as grinding, banging, or hissing, and unpleasant smells like mustiness or burning are also potential warning signs. A rise in energy costs without an increase in usage may also imply decreased efficiency. An HVAC system that frequently cycles on and off or cannot maintain a stable temperature is malfunctioning.

Freon circulates through your AC unit in a closed loop, so ideally, all of it should remain inside your system and never need to be replaced. However, if your AC starts leaking Freon (which is common), you’ll need to top it up. Known as an AC recharge, the cost of adding refrigerant to your air conditioner depends on the size and type of the AC unit, as well as the type of refrigerant.

Air conditioners and dehumidifiers are actually quite similar, though they perform different jobs. Dehumidifiers reduce moisture in the air, while air conditioners work to cool the home. A good central AC unit will naturally perform a certain level of dehumidification due to its design, but it will not be able to handle excessive levels of moisture.

While it is possible to add Freon to your AC unit yourself, it is not recommended. In fact, the U.S. Environmental Protection Agency (EPA) prohibits the handling of Freon without a license. Freon is a dangerous gas that can cause irreversible damage to your AC or yourself if not installed correctly. It is worthwhile to hire a professional to add Freon to your AC.

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.

The Delaware, 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.

What do you need done? We’ll find top pros.
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