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There are 21 highly-rated local heating and air conditioning pros.

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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon287
    Verified heating and air conditioning services reviews

Verified Reviews for Heating And Air Conditioning Service pros in Wallingford, CT

*The Angi rating for Heating And Air Conditioning Service companies in Wallingford, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Wallingford, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

Last update on September 07, 2025

Heating and air conditioning pros in Wallingford

Tracey Energy Services LLC

325 Howard Ave
5.00(
8
)

Tracey Energy Services LLC

325 Howard Ave
5.00(
8
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are an 88 year old third generation full service heating oil company. We are based in New Haven and our qualified & experienced HVAC Department can handle maintenance, repair and installation of warm air furnaces, boilers, water heaters and air-conditioning. We offer many solutions to properly heat or cool your home properly. We work with both #2 heating oil and natural gas fuels.

"The customer service at Tracey Energy is always top notch. They respond immediately. Tried others in the past and these folks are always head and shoulders above with there response and professionalism. Get the service and repair plan, worth it all day long."

Jason D on July 2019

We are an 88 year old third generation full service heating oil company. We are based in New Haven and our qualified & experienced HVAC Department can handle maintenance, repair and installation of warm air furnaces, boilers, water heaters and air-conditioning. We offer many solutions to properly heat or cool your home properly. We work with both #2 heating oil and natural gas fuels.

"The customer service at Tracey Energy is always top notch. They respond immediately. Tried others in the past and these folks are always head and shoulders above with there response and professionalism. Get the service and repair plan, worth it all day long."

Jason D on July 2019

Viomax Heating and Cooling LLC

1052 New Rock Hill Rd
1.50(
2
)

Viomax Heating and Cooling LLC

1052 New Rock Hill Rd
1.50(
2
)
9 years of experience

We are a small Hvac Contractor that strives to stay that way in order to keep our over head low and pass on the savings to you.

"Steve Smalley of Viomax Heating and Cooling came up with an elaborate scheme to cheat my mother out of $1500. He took $1000 from her to order a part to fix her furnace. He came back 6 weeks later and took another $500 and claimed he needed it to pick up the part. That was 2 months ago. He has since blocked her number. He refuses to give any information about where the part was ordered from. It is now the end of November, and she has no heat. He clearly planned this to take advantage of someone vulnerable. He is willing to steal money from widows. He will steal from you too."

Marcie H on November 2018

We are a small Hvac Contractor that strives to stay that way in order to keep our over head low and pass on the savings to you.

"Steve Smalley of Viomax Heating and Cooling came up with an elaborate scheme to cheat my mother out of $1500. He took $1000 from her to order a part to fix her furnace. He came back 6 weeks later and took another $500 and claimed he needed it to pick up the part. That was 2 months ago. He has since blocked her number. He refuses to give any information about where the part was ordered from. It is now the end of November, and she has no heat. He clearly planned this to take advantage of someone vulnerable. He is willing to steal money from widows. He will steal from you too."

Marcie H on November 2018

C2G Environmental Consultants LLC

25 Mallane Ln
4.00(
3
)

C2G Environmental Consultants LLC

25 Mallane Ln
4.00(
3
)
Customers say: Terrific value
22 years of experience

C2G Environmental Consultants, LLC specializes in underground storage tank removals and abandonments, above ground storage tank removals and installations, remediation of contaminated soil, groundwater investigations, and emergency spill response. By choosing C2G Environmental, you can be assured that your environmental project will be handled with the utmost care and professionalism. C2G Environmental is a full service environmental company. What sets us apart from other companies is our highly trained staff of professional geologists and hydrologists, as well as technicians. We do not use sub-contractors or rental equipment. We are authorized by New York, Connecticut, and New Jersey to remove and haul contaminated material. Our Services: Tank Removals, Abandonments & Installations, 24 Hour Emergency Spill Response, Ground Penetrating Radar (GPR), Geoprobe & Vac Truck Services, Water, Soil, Air Testing/Monitoring , Liquid/Soil Transportation & Disposal, Petroleum Facility Compliance Audits (Class A/B Operator), Phase I & II Environmental Site Assessment, and more.

"This review was 5 stars until about a week ago. I needed a new oil tank installed last year. C2G came out and performed the task. They were the most cost effective option so I went with them. The install was a success and the tank looks great. However, a couple weeks after I had to have them back out again to fix the leaking oil filter. They came out, tightened it, and it stopped leaking... for that period of time. Fast forward to this year and getting ready for the colder months. I noticed a small puddle underneath the filter, again. This would be the 3rd time I would have needed them to come out to repair it. At that point I question if it was installed correctly or not. I called them asking if they could come out, they said with a fee and showed opposition in understanding where I was coming from, saying I was outside of their 45 day guarentee. The lady I spoke with said she would speak to her supervisor and follow up with me. That never happened. I had to have a plumber over to my house, and luckily he was able to repair the leak. The rubber gasket was malformed inside, causing the slow leak. Despite a smooth install, I was really disappointed with how they treated a previous customer. They really didn't care that their work was sub-par. A newly installed oil tank should not be leaking a year later. I will not use this company again."

Matthew C on September 2022

C2G Environmental Consultants, LLC specializes in underground storage tank removals and abandonments, above ground storage tank removals and installations, remediation of contaminated soil, groundwater investigations, and emergency spill response. By choosing C2G Environmental, you can be assured that your environmental project will be handled with the utmost care and professionalism. C2G Environmental is a full service environmental company. What sets us apart from other companies is our highly trained staff of professional geologists and hydrologists, as well as technicians. We do not use sub-contractors or rental equipment. We are authorized by New York, Connecticut, and New Jersey to remove and haul contaminated material. Our Services: Tank Removals, Abandonments & Installations, 24 Hour Emergency Spill Response, Ground Penetrating Radar (GPR), Geoprobe & Vac Truck Services, Water, Soil, Air Testing/Monitoring , Liquid/Soil Transportation & Disposal, Petroleum Facility Compliance Audits (Class A/B Operator), Phase I & II Environmental Site Assessment, and more.

"This review was 5 stars until about a week ago. I needed a new oil tank installed last year. C2G came out and performed the task. They were the most cost effective option so I went with them. The install was a success and the tank looks great. However, a couple weeks after I had to have them back out again to fix the leaking oil filter. They came out, tightened it, and it stopped leaking... for that period of time. Fast forward to this year and getting ready for the colder months. I noticed a small puddle underneath the filter, again. This would be the 3rd time I would have needed them to come out to repair it. At that point I question if it was installed correctly or not. I called them asking if they could come out, they said with a fee and showed opposition in understanding where I was coming from, saying I was outside of their 45 day guarentee. The lady I spoke with said she would speak to her supervisor and follow up with me. That never happened. I had to have a plumber over to my house, and luckily he was able to repair the leak. The rubber gasket was malformed inside, causing the slow leak. Despite a smooth install, I was really disappointed with how they treated a previous customer. They really didn't care that their work was sub-par. A newly installed oil tank should not be leaking a year later. I will not use this company again."

Matthew C on September 2022

Apple Oil Company

325 Morgan Lane
4.20(
10
)

Apple Oil Company

325 Morgan Lane
4.20(
10
)
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

Apple Oil has been serving residential and commercial oil customers in Fairfield and New Haven counties for the past 30 years. As one of the first companies in Connecticut to include new technologies such as bio fuels, low sulfur fuels with additivies, and more efficient burner equipment, Apple Oil looks to the next 30 years to continue to be among the forefront Connecticut oil companies. With the lowest prices and the best service technicians available, Apple Oil is on call 365 days of the year to serve your heating oil needs.

"I can't praise the team at Apple Oil enough for their outstanding prompt response during a recent heating oil emergency. I reached out to them in a bit of a panic when I realized my home had run out of heating oil last Friday. The response from Apple Oil was incredibly swift. The driver (Chris) arrived at my doorstep promptly and wasted no time in getting my furnace up and running. His level of professionalism was impressive, and the team worked efficiently to resolve the issue. I felt a sense of relief as they not only addressed the emergency promptly but also provided excellent service with a friendly demeanor. I highly commend Apple OIl for their quick and effective response in a time-sensitive situation. They have definitely earned my trust as a reliable and professional service provider."

Luis P on December 2023

Apple Oil has been serving residential and commercial oil customers in Fairfield and New Haven counties for the past 30 years. As one of the first companies in Connecticut to include new technologies such as bio fuels, low sulfur fuels with additivies, and more efficient burner equipment, Apple Oil looks to the next 30 years to continue to be among the forefront Connecticut oil companies. With the lowest prices and the best service technicians available, Apple Oil is on call 365 days of the year to serve your heating oil needs.

"I can't praise the team at Apple Oil enough for their outstanding prompt response during a recent heating oil emergency. I reached out to them in a bit of a panic when I realized my home had run out of heating oil last Friday. The response from Apple Oil was incredibly swift. The driver (Chris) arrived at my doorstep promptly and wasted no time in getting my furnace up and running. His level of professionalism was impressive, and the team worked efficiently to resolve the issue. I felt a sense of relief as they not only addressed the emergency promptly but also provided excellent service with a friendly demeanor. I highly commend Apple OIl for their quick and effective response in a time-sensitive situation. They have definitely earned my trust as a reliable and professional service provider."

Luis P on December 2023

Delia Inc.

129 Robin Street
3.00(
2
)

Delia Inc.

129 Robin Street
3.00(
2
)
13 years of experience

We service and install boilers and furnaces. We're dedicated to our craft and we take exceptional care of our customers. We offer free estimates and would love to hear of your upcoming project. Call or click for an estimate today

"-SCAM ALERT- SCAM ALERT Jim Delia came to my house to repair a furnace. Jumped some wires and had my furnace running and smoking. I called him to see what he can do and he will not return my calls or messages. He turned his phone off. Had to call another company. Charged me $475 and I gave him a $25 tip. 2 hours of nothing."

Orlando R on February 2024

We service and install boilers and furnaces. We're dedicated to our craft and we take exceptional care of our customers. We offer free estimates and would love to hear of your upcoming project. Call or click for an estimate today

"-SCAM ALERT- SCAM ALERT Jim Delia came to my house to repair a furnace. Jumped some wires and had my furnace running and smoking. I called him to see what he can do and he will not return my calls or messages. He turned his phone off. Had to call another company. Charged me $475 and I gave him a $25 tip. 2 hours of nothing."

Orlando R on February 2024

Mobilio and Son HVAC

12 Shasta Ter
5.00(
1
)

Mobilio and Son HVAC

12 Shasta Ter
5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Mobilio and Son HVAC is a family owned and operated Heating and cooling company servicing the Naugatuck Valley area. Company owner, Joe Mobilio, offers 10+ years of experience in the HVAC industry. We are a fully licensed and insured company providing excellent, reliable service at fair prices. At Mobilio and Son HVAC, your comfort is our priority. Whether you are looking to repair an existing unit, upgrade to a newer, more energy efficient unit, or simply have your preventative maintenance performed, your satisfaction is 100% guaranteed. We can handle all your HVAC, Heating and Air conditioning, HVAC Repair, Water Tanks, HVAC Maintenance, Duct Work, Furnace, & Ventilation needs! Call Today for a Free Estimate!

"Awesome! 5 Star Service! Lifetime customer for sure!"

Joseph P on October 2019

Mobilio and Son HVAC is a family owned and operated Heating and cooling company servicing the Naugatuck Valley area. Company owner, Joe Mobilio, offers 10+ years of experience in the HVAC industry. We are a fully licensed and insured company providing excellent, reliable service at fair prices. At Mobilio and Son HVAC, your comfort is our priority. Whether you are looking to repair an existing unit, upgrade to a newer, more energy efficient unit, or simply have your preventative maintenance performed, your satisfaction is 100% guaranteed. We can handle all your HVAC, Heating and Air conditioning, HVAC Repair, Water Tanks, HVAC Maintenance, Duct Work, Furnace, & Ventilation needs! Call Today for a Free Estimate!

"Awesome! 5 Star Service! Lifetime customer for sure!"

Joseph P on October 2019

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FAQs for heating and air conditioning service projects in Wallingford, CT

Knowing how long your existing HVAC units can last is essential to determine if you need a repair or replacement. Typically, most modern air conditioning units can last between 15 to 20 years, and most furnaces can work properly for 15 to 30 years. If your HVAC system is on the older side and you decide to replace one unit, it might make sense to replace both simultaneously to save on costs and future hassle.

While different HVAC contractors might offer higher or lower prices than competitors, the best time to replace your HVAC system is when customer demand is low. The beginning of summer and the beginning of winter bring the most demand for HVAC systems, so if you can, consider replacing your HVAC units in the early spring or fall. Many HVAC companies offer special off-season coupons that help lower the overall cost.  

The average cost to hire an HVAC contractor is between $50 and $150 per hour if charging hourly. However, some HVAC contractors will charge a flat fee by the type of service they are performing—for example, an inspection can cost between $150 to $500. Keep in mind that emergency repairs—which are made after business hours or around major holidays—generally cost more than scheduled repairs.

Yes, most states require HVAC technicians to be certified, and for good reason. Hiring an unlicensed HVAC technician could lead to poor quality work, costly future expenses, and potential code violations. 

As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include: 

  • The owner, principal, or relevant manager passed a criminal background check

  • Required to have applicable state and local licenses

  • Maintain an average star rating of 3.0 or better on our network, if they have at least one review

  • Paying to advertise their services

  • Meeting any other eligibility criteria required by Angi

Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.

The average cost of HVAC repairs is around $350. However, that price can be as low as $100 or as high as $2,000 or more, depending on the repair. For example, replacing a capacitor is a relatively inexpensive repair, ranging from $100 to $500. However, a compressor repair is a more expensive repair, ranging from $750 to $2,000.  

The Wallingford, CT 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.

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