How much does it cost to fix a leak in an AC unit?

• <div><p>Fixing a leak in an AC unit costs $200 to $1,600, depending on the type of leak and any related damage. But depending on the age and condition of your AC, it might make more sense to <a href="https://www.angi.com/articles/it-time-repair-or-replace-my-air-conditioner.htm">replace the AC unit instead of repairing it</a>. If your AC is only a few years old and relatively problem-free, then repairing it is the right call. But if it’s nearing a decade old and has other issues, consider replacing it. </p></div>

Is it bad to turn AC on and off frequently?

• <div><p>No, it isn’t necessarily <a href="https://www.angi.com/articles/is-it-bad-to-keep-turning-ac-on-and-off.htm">bad to turn your AC on and off</a> frequently—contrary to popular belief. Even if you stop and start your AC throughout the day, it won’t use as much energy as it would if you ran it nonstop. </p><p>If you’re concerned about your power consumption and energy costs, there are a few simple ways to use your AC more efficiently. Regularly cleaning the filters, scheduling routine maintenance, and using a programmable thermostat are all great choices.</p></div>

Top-rated heating and air conditioning pros.

Get matched with top heating and air conditioning pros in Milford, CT

There are 20 highly-rated local heating and air conditioning pros.

TRUSTED BY MILFORD, CT HOMEOWNERS

4.6
Average homeowner rating
351
Verified heating and air conditioning services reviews

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

*The Angi rating for Heating And Air Conditioning Service companies in Milford, 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 Milford, 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 October 16, 2025

Reviewed in May 2025
I have been using A&S for years. I just bought a new house and the second floor air conditioning wouldn’t work. They came out diagnosed the problem and within a few days came back to install all the parts once they came in. They were polite, knowledgeable, clean and helpful on whole situation. I...
A&S Nathan Heating & Cooling
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Reviewed in October 2023
It was highly professional and the heating system was explained in a way that was simple to understand
Precise HVAC Home Services
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Reviewed in June 2023
Dandelion did a fantastic job installing ductwork and heatpump, coordinating with other contractors, e.g., drilling company, keep me informed, and basically "held my hand" through this process. Although I contacted them last year (summer of 2022), the actual process from drilling to end...
Dandelion Energy
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Reviewed in June 2020
The complete service experience was exceptional. Riley (owner) called shortly after submitting my request. His estimate for the initial service was competitive with another quote. He was on time for our scheduled appointment. While performing the service, he explained what he was doing and how...
Red Rock Refrigeration LLC
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Reviewed in July 2019
Ben, (the service man) responded to my call with the urgency required. My AC was not working. I called Sunday evening and he was at my home at 8:00am Monday.(competitor couldn't come until Wednesday). He was polite and considerate as to our time and situation and went to work to resolve our AC...
YBC Air LLC
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Reviewed in May 2019
This company likely does great duct cleaning work. However, I needed to 2 AC/Heating vents to a room.
Safe House
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Reviewed in May 2018
Rob Terry came out to our home within a couple hours of our placing a call to the Terry's A/C & Heating office. (Office personnel were helpful and efficient.) Rob contacted me when he was on his way and quickly diagnosed the problem after arriving (condenser fan was overheating and turning off...
Terry's A/C & Heating LLC
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Reviewed in July 2015
My wife and I are extremely happy with our choice of Connecticut Air Systems Inc to install central air in my house. It stated with a call to CT Air systems and a pleasant interaction with the woman who answered the phones and set up a quote appointment right away. I explained that I thought...
Connecticut Air Systems Inc
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Reviewed in June 2015
They also installed the A/C compressor cooling system and attached it to the heating system.
Call The Whale
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Reviewed in July 2013
For new system, needed two wells drilled 440 feet each. Connecticut Valley Artisan Well drilled the wells. They started in June and were done in July. Claude had the new units delivered to the house in July, and a week or so later he installed them. He removed the old water heater and put in...
BISSON PLUMBING HEATING & COOLING
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Find Heating and air conditioning pros in Milford

R & R Heating & Cooling

R & R Heating & Cooling

Customers say: Quick response

Recommended by 100% of Angi customers

34 local quotes requested

R & R Heating & Cooling at your service. We have over 20 years of industry experience and provide our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company foundation is built on honesty and integrity. Most contractors upsell, but I do not. If it can be fixed, I will fix it. 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. There is a 30-day warranty on all our services. We look forward to building long-term relationships with our clients and guarantee your satisfaction! **After 5pm, please leave a voicemail and we will get back to you on the same day for emergencies, or the next day for normal business requests You can also book online on our website**

"I absolutely love this company! They are so knowledgeable and efficient, with a great price! We have used them for 2 properties and will continue to hire again!"

Selina C on September 2024

"I absolutely love this company! They are so knowledgeable and efficient, with a great price! We have used them for 2 properties and will continue to hire again!"

Selina C on September 2024

HARP Home Services LLC

863 Marshall Phelps Rd

HARP Home Services LLC

863 Marshall Phelps Rd

Customers say: Super punctual

618 local quotes requested

33 years of experience

We joined Angie's List in August of 2007 and have earned their Super Service Award every year since 2009 when they started that program. HARP Home Services, LLC is here to take care of all your heating and air conditioning needs. Whether you are looking for a free quote on a new central air conditioning system or are ready to install radiant floor heating or a new boiler for those chilly winter months, we're just a phone call (or e-mail) away. Residential & Commercial.

"We had a furnace installed by Harp on July 8th 2024 after it being diagnosed by their technician as to the reason our ac system was not functioning properly. That’s when our troubles with Harp began. The installation was not done properly, we needed 3 service calls to get the ac to work properly. The installers were sloppy. We cleaned up screws and wire and parts from the old furnace for weeks. When heating season began we noticed that the humidifier installed with the furnace was not operating. We scheduled an appointment to have it repaired and they called the day of the appointment and told us they couldn’t come that day and we had to reschedule, so reluctantly we did. They finally came and repaired it. From what the technician told me it was not wired properly. On January 21st 2025( the coldest night of the year) the furnace stopped working. We called Harp to get someone to come to repair it as we had no heat in below 0º weather I was told the best they could do is to come the next day between 2 and 6 pm. I tried to explain that this was an emergency but to no avail. I called my local oil company and they were at my door within 30 minutes( which I would’ve expected from the company who sold us the furnace) the repaired it quickly and told us that one f the wires on the control panel was not attached properly. It cost me $300. I would NOT recommend Harp to anyone. They are not reliable and do not stand behind their promises of service 24/7. Stay as far away from this company as possible. We are sorry we ever started with them."

John J on January 2025

"We had a furnace installed by Harp on July 8th 2024 after it being diagnosed by their technician as to the reason our ac system was not functioning properly. That’s when our troubles with Harp began. The installation was not done properly, we needed 3 service calls to get the ac to work properly. The installers were sloppy. We cleaned up screws and wire and parts from the old furnace for weeks. When heating season began we noticed that the humidifier installed with the furnace was not operating. We scheduled an appointment to have it repaired and they called the day of the appointment and told us they couldn’t come that day and we had to reschedule, so reluctantly we did. They finally came and repaired it. From what the technician told me it was not wired properly. On January 21st 2025( the coldest night of the year) the furnace stopped working. We called Harp to get someone to come to repair it as we had no heat in below 0º weather I was told the best they could do is to come the next day between 2 and 6 pm. I tried to explain that this was an emergency but to no avail. I called my local oil company and they were at my door within 30 minutes( which I would’ve expected from the company who sold us the furnace) the repaired it quickly and told us that one f the wires on the control panel was not attached properly. It cost me $300. I would NOT recommend Harp to anyone. They are not reliable and do not stand behind their promises of service 24/7. Stay as far away from this company as possible. We are sorry we ever started with them."

John J on January 2025

East Coast Mechanical Inc

East Coast Mechanical Inc

Customers say: Quality work

42 local quotes requested

31 years of experience

Formed in 1994 by Norm Wium, East Coast Mechanical Inc. has become one of the preeminent Trane Comfort Specialist Dealers in the area. We specialize in residential renovation and replacements along with residential/light commercial construction and service. Located at 1187 Highland Avenue in Cheshire, we have a complete fabrication shop, office and service parts inventory on site. We offer 24-hour service, maintenance agreements and, of course, free evaluations and heat loss calculations for comfort system installations. Additional email - [email protected].

"Perfect as I expected and more. East Coast installed a central air system and a ductless heating and calling system in my house. They were much affordable than their competitor."

Halim E on August 2023

"Perfect as I expected and more. East Coast installed a central air system and a ductless heating and calling system in my house. They were much affordable than their competitor."

Halim E on August 2023

Tyler Heating, Air Conditioning and Refrigeration LLC

Tyler Heating, Air Conditioning and Refrigeration LLC

Customers say: Super punctual

Recommended by 90% of Angi customers

36 local quotes requested

To a home or business owner in Connecticut, having an effective, efficient, and reliable HVAC system in place is vital. Our summers are hot, and the winters get plenty cold, and that means your equipment needs to be able to keep up if you intend to remain comfortable. That requires the attention and care of heating and cooling contractors that are a cut above. We strive to be absolutely exceptional in all regards! In order to do so, we offer Carrier® products as well as a customized and customer-focused approach to our services. We deliver a team that is knowledgeable, professional, friendly, and above all, one that puts you first. For complete HVAC repair, installation, and maintenance services call or message Tyler Heating, Air Conditioning, Refrigeration LLC!

"Great work from Patrick, Fred and the whole team."

Allison P on June 2025

"Great work from Patrick, Fred and the whole team."

Allison P on June 2025

Precise HVAC Home Services

35 Wooster Court Unit D

5.00(

)

•Approved Pro

Precise HVAC Home Services

35 Wooster Court Unit D

5.00(

)

•Approved Pro

Customers say: Quick response

Recommended by 100% of Angi customers

134 local quotes requested

We take great pride in offering the best possible experience with our expertise, quality, and customer service. In order to understand the needs and expectations of our clients, we make every effort to work and communicate with everyone in a professional manner. It is our mission to exceed our clients expectations by providing excellent workmanship and complete customer satisfaction, from the start of each project to its completion. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"My AC was not working Precise came out and fixed the problem . I was very pleased with the service and professionalism. I will be using for all my maintenance and repair needs."

Anna S on August 2024

"My AC was not working Precise came out and fixed the problem . I was very pleased with the service and professionalism. I will be using for all my maintenance and repair needs."

Anna S on August 2024

Petro Home Services

Petro Home Services

Customers say: True professional

619 local quotes requested

122 years of experience

With over 100 years experience, we know how to keep you comfortable, safe and help you save on energy costs. Our local 24/7 customer service and support means automatic heating oil deliveries and our service response is always fast. We never run out of heating oil plus our pricing and payment plans are designed to help you manage your costs all year round. Experience the Petro difference today!

"Worst service I’ve ever have experienced. They wanted to sell me the product, never told me that there was an early termination fee and another penalty for an initial offer they gave me. Had double charges every month, once for the oil they provided (which they never told me they were going to provide before coming. They just came without my knowledge and then I find a high amount bill) and another for an “automatic payment” for 500 that they never could explain. The didn’t even fix this issue and it kept happening every month even after I cancelled the service. Then having to call them is a hastié for the refund of the 500. Stay away of this company"

Axel R on January 2023

"Worst service I’ve ever have experienced. They wanted to sell me the product, never told me that there was an early termination fee and another penalty for an initial offer they gave me. Had double charges every month, once for the oil they provided (which they never told me they were going to provide before coming. They just came without my knowledge and then I find a high amount bill) and another for an “automatic payment” for 500 that they never could explain. The didn’t even fix this issue and it kept happening every month even after I cancelled the service. Then having to call them is a hastié for the refund of the 500. Stay away of this company"

Axel R on January 2023

Onofreo Home Comfort Systems, LLC

Onofreo Home Comfort Systems, LLC

Customers say: Quick response

Recommended by 100% of Angi customers

39 local quotes requested

Onofreo Home Comfort Systems LLC, is your very best option for all your HVAC needs. We always offer the very best pricing, excellent customer service and superior workmanship on every job we do. Call us now!

"work was done on time and right. The price was excellent"

Thomas M on June 2024

"work was done on time and right. The price was excellent"

Thomas M on June 2024

MTL Heating & Cooling

375 Morgan Lane, Unit 404

MTL Heating & Cooling

375 Morgan Lane, Unit 404

Customers say: Quality work

Recommended by 98% of Angi customers

17 years of experience

At MTL Heating & Cooling, we are locally owned and operated with over 25 years of residential HVAC experience. Let us wow you with our quick, reliable and professional touch. What you see is what you get and we ensure you will be satisfied with our work. I would like you to be our next happy customer! Our reputation for listening and problem solving precedes us. We have an expert eye for detail and troubleshooting, as well as being able to work out the best solution for the client.

"These guys are awesome. They stayed untill almost midnight trying to figure out what was wrong with my furnace. They was determined to get us heat. I felt bad because, they been there almost all day and I know they wanted to go home. The price was extremely fair compared to the time they spent. I truly appreciate the job they did. Highly recommended"

John R on April 2021

"These guys are awesome. They stayed untill almost midnight trying to figure out what was wrong with my furnace. They was determined to get us heat. I felt bad because, they been there almost all day and I know they wanted to go home. The price was extremely fair compared to the time they spent. I truly appreciate the job they did. Highly recommended"

John R on April 2021

All Phase Heating & Cooling, LLC

All Phase Heating & Cooling, LLC

Customers say: Quality work

23 years of experience

Free onsite estimate

All Phase Heating & Cooling LLCis a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 10 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"All Phase Heating and Cooling is the absolute BEST here in Milford, CT. Tony Alicki and his sons - Anthony and Matt - are what old world values and expertise are all about. Honest. Fair. Expert in their craft. We contracted with them when we had a MAJOR home renovation - cut off the top of our house and added a second floor. Tony was with us all the way - and in the 14 years since then, he has faithfully, and honestly service our home - with the profound respect and service that is rare these days. His boys and family members keep the tradition of excellent customer service alive. We heartily endorse this company. You will not be disappointed."

Kathy B on July 2024

"All Phase Heating and Cooling is the absolute BEST here in Milford, CT. Tony Alicki and his sons - Anthony and Matt - are what old world values and expertise are all about. Honest. Fair. Expert in their craft. We contracted with them when we had a MAJOR home renovation - cut off the top of our house and added a second floor. Tony was with us all the way - and in the 14 years since then, he has faithfully, and honestly service our home - with the profound respect and service that is rare these days. His boys and family members keep the tradition of excellent customer service alive. We heartily endorse this company. You will not be disappointed."

Kathy B on July 2024

Precise HVAC Home Services

35 Wooster Court, Unit D

4.94(

)

•Approved Pro

Precise HVAC Home Services

35 Wooster Court, Unit D

4.94(

)

•Approved Pro

Customers say: True professional

226 local quotes requested

17 years of experience

"Ac needs service, but not the outlet. "

Rich F on June 2025

"Ac needs service, but not the outlet. "

Rich F on June 2025

...

Showing 1-10 of 211

Heating and Air Conditioning questions, answered by experts

It depends on the size of the space you’re cooling down. If you’re looking for the most affordable way to cool an entire house over a long period of time, then central air will be more cost-effective. But when it comes to cooling down a couple of rooms or one floor, a window unit may be the cheaper option, with both a lower cost to install and less energy used to run.

Fixing a leak in an AC unit costs $200 to $1,600, depending on the type of leak and any related damage. But depending on the age and condition of your AC, it might make more sense to replace the AC unit instead of repairing it. If your AC is only a few years old and relatively problem-free, then repairing it is the right call. But if it’s nearing a decade old and has other issues, consider replacing it.

No, it isn’t necessarily bad to turn your AC on and off frequently—contrary to popular belief. Even if you stop and start your AC throughout the day, it won’t use as much energy as it would if you ran it nonstop.

If you’re concerned about your power consumption and energy costs, there are a few simple ways to use your AC more efficiently. Regularly cleaning the filters, scheduling routine maintenance, and using a programmable thermostat are all great choices.

It depends on how fast an HVAC technician can resolve the issue. First, if there's a refrigerant leak, you’ll want to keep small children and pets out of the house. Next, you’ll want to turn off the AC unit to ensure no more freon enters your home. Finally, you’ll need an AC technician pro to come to your home and fix the leak immediately. Ultimately, it’s best to leave your home if you discover a freon leak—the risk of exposure is very high, and it’s not worth risking your health to stay.

There are a few reasons your AC is running but not cooling your room. Thermostat issues and dust and debris, which can clog your system, are common problems. It could also be a broken component, such as a compressor, blower fan, or evaporator coils. You’ll need to call a pro to diagnose the issue.

By submitting this question, I acknowledge and agree that Angi may publicly display my name, city, state, and question on the website for professionals and others to see.

The Milford, CT homeowners’ guide to heating and air conditioning services

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