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TRUSTED BY ANNAPOLIS, MD HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon735
    Verified heating and air conditioning services reviews

Verified Reviews for Heating And Air Conditioning Service pros in Annapolis, MD

*The Angi rating for Heating And Air Conditioning Service companies in Annapolis, MD 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 Annapolis, MD 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 December 02, 2025

Find Heating and air conditioning pros in Annapolis

Avatar for Sila Heating, Cooling and Plumbing

Sila Heating, Cooling and Plumbing

4.64(
2,119
)
•Approved Pro

Sila Heating, Cooling and Plumbing

4.64(
2,119
)
•Approved Pro
Customers say: Super punctual
1989 years of experience
Free onsite estimate

Live Your Most Comfortable Life with a Company You Trust. We offer Same Day Service and Next Day Installation! Sila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it’s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe — season after season. We guarantee satisfaction and are proud to have earned over 7,000 “A” ratings on Angie’s List and its prestigious Super Service Award!

"They charged $98 to come give me an estimate for swapping our a shower valve cartridge, which was fine, but the pricing they provided was completely unreasonable, $1,000. They were unwilling to provide any detail for the price. I ended up buy the part myself for $30 and replaced it in 30 minutes."

Tom A on October 2024

Live Your Most Comfortable Life with a Company You Trust. We offer Same Day Service and Next Day Installation! Sila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it’s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe — season after season. We guarantee satisfaction and are proud to have earned over 7,000 “A” ratings on Angie’s List and its prestigious Super Service Award!

"They charged $98 to come give me an estimate for swapping our a shower valve cartridge, which was fine, but the pricing they provided was completely unreasonable, $1,000. They were unwilling to provide any detail for the price. I ended up buy the part myself for $30 and replaced it in 30 minutes."

Tom A on October 2024

Dimitri's Home Improvement

4.75(
36
)
•Approved Pro

Dimitri's Home Improvement

4.75(
36
)
•Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
1972 years of experience

Residential and Light commercial, General Contractor. Dimitri’s Home Improvement is a family owned business serving Baltimore, Howard and Anne Arundel counties. We offer quality work and a professional attitude backed with over 40 years of home improvement experience. **If contacting us via the Angie's List Message Center, PLEASE include your name and phone number within the message to ensure the most efficient service** thank you! Additional Services-Remodeling - Modular & Mobile Home Remodeling - Sunrooms & Patio Enclosures Window Treatments

"Very well. Workers cleaned up area and worked neatly. Very satisfied with quality of work and would use again!"

Tod H on November 2023

Residential and Light commercial, General Contractor. Dimitri’s Home Improvement is a family owned business serving Baltimore, Howard and Anne Arundel counties. We offer quality work and a professional attitude backed with over 40 years of home improvement experience. **If contacting us via the Angie's List Message Center, PLEASE include your name and phone number within the message to ensure the most efficient service** thank you! Additional Services-Remodeling - Modular & Mobile Home Remodeling - Sunrooms & Patio Enclosures Window Treatments

"Very well. Workers cleaned up area and worked neatly. Very satisfied with quality of work and would use again!"

Tod H on November 2023

Avatar for Len The Plumber, LLC.

Len The Plumber, LLC.

4.25(
1,260
)
•Approved Pro

Len The Plumber, LLC.

4.25(
1,260
)
•Approved Pro
Customers say: Super punctual
1996 years of experience
Free onsite estimate

Len The Plumber Heating & Air, LLC is a leading plumbing and drain company serving Central Maryland. Our certified professional plumbers are available same day to assist residential customers in Anne Arundel County, Baltimore City, Baltimore County, Carroll County, Cecil County, Harford County, and Howard County. Our knowledgeable plumbers have years of experience dealing with a wide variety of plumbing issues including plumbing repairs, drain cleaning, water heaters, well systems, heating systems, sewer, water, and gas lines. We’re open 7 days a week with no extra charge on evenings or weekends!

"We’ve used Len the Plumber in the past, and while they’ve been slightly overpriced, they’ve been reliable and effective. But after this week I’ll be taking my plumbing business elsewhere, and I would highly recommend that anyone else do the same. Several times over the past few weeks we’ve had issues with the sink and toilet in one bathroom. A little less than a month ago, a Len the Plumber tech had replaced the toilet in that bathroom (not for the same issue). On Friday I called Len the Plumber to have someone come out and take a look. The woman who answered the phone said she would have the same tech that had installed the toilet come out that afternoon between 2 and 5pm. At 2:41pm someone from Len the Plumber called. She said that unfortunately that tech wasn’t scheduled to work that day and the appointment shouldn’t have been made. She told me he could come out Sunday morning between 8 and 11am. At 8:43 Sunday morning, a woman from Len the Plumber called to say the tech would be out in 30-45 minutes. Eight minutes later she called back to say that no, he doesn’t have a snake, so she’ll have to send someone else later. I told her he wouldn’t need a snake, that it wasn’t clogged right now. She said she’d discuss with the tech and call me back. At 8:58am she called me back and said that it sounded like the P-trap was clogged, and the tech would need a snake. I asked why he didn’t have one with him (since he worked for a company called Len the Plumber) and why he couldn’t just swing by a hardware store and pick one up. She said the techs don’t always have snakes, and sometimes they break and need to be fixed. She said she could send someone else out later in the day. I told her that we wouldn’t be here later, and that we had made plans around the tech coming out this morning (after we had made plans around the tech coming out on Friday). She said she would try to get someone out during the same timeframe, within the next two hours. At 10:36am she called back and said that she could have a different tech come out in 30-60 minutes. I told her no, we had planned to be home based on the 8-11 timeframe that we’d been given, and that wouldn’t work. She said she was sorry, but they had emergencies. I canceled the appointment and will never be using Len the Plumber again. The fact that a plumbing company can schedule a call two days in advance for a technician to come out for a problem with a sink and toilet, and neither the tech nor the dispatcher realizes that the tech doesn’t have a snake with him (and for some reason he can’t just pick one up) speaks volumes about the company’s competency. Add to that the bungling of the initial appointment, and the fact that a Len the Plumber tech told me to my face that he has no way of knowing what model toilet he installed in my house without physically coming out to see it, and this is clearly a poorly-run company with an outdated and/or low-quality field service and dispatch system. There are many competent plumbing companies in the mid-Atlantic area. Len the Plumber is not one of them."

Greg S on September 2022

Len The Plumber Heating & Air, LLC is a leading plumbing and drain company serving Central Maryland. Our certified professional plumbers are available same day to assist residential customers in Anne Arundel County, Baltimore City, Baltimore County, Carroll County, Cecil County, Harford County, and Howard County. Our knowledgeable plumbers have years of experience dealing with a wide variety of plumbing issues including plumbing repairs, drain cleaning, water heaters, well systems, heating systems, sewer, water, and gas lines. We’re open 7 days a week with no extra charge on evenings or weekends!

"We’ve used Len the Plumber in the past, and while they’ve been slightly overpriced, they’ve been reliable and effective. But after this week I’ll be taking my plumbing business elsewhere, and I would highly recommend that anyone else do the same. Several times over the past few weeks we’ve had issues with the sink and toilet in one bathroom. A little less than a month ago, a Len the Plumber tech had replaced the toilet in that bathroom (not for the same issue). On Friday I called Len the Plumber to have someone come out and take a look. The woman who answered the phone said she would have the same tech that had installed the toilet come out that afternoon between 2 and 5pm. At 2:41pm someone from Len the Plumber called. She said that unfortunately that tech wasn’t scheduled to work that day and the appointment shouldn’t have been made. She told me he could come out Sunday morning between 8 and 11am. At 8:43 Sunday morning, a woman from Len the Plumber called to say the tech would be out in 30-45 minutes. Eight minutes later she called back to say that no, he doesn’t have a snake, so she’ll have to send someone else later. I told her he wouldn’t need a snake, that it wasn’t clogged right now. She said she’d discuss with the tech and call me back. At 8:58am she called me back and said that it sounded like the P-trap was clogged, and the tech would need a snake. I asked why he didn’t have one with him (since he worked for a company called Len the Plumber) and why he couldn’t just swing by a hardware store and pick one up. She said the techs don’t always have snakes, and sometimes they break and need to be fixed. She said she could send someone else out later in the day. I told her that we wouldn’t be here later, and that we had made plans around the tech coming out this morning (after we had made plans around the tech coming out on Friday). She said she would try to get someone out during the same timeframe, within the next two hours. At 10:36am she called back and said that she could have a different tech come out in 30-60 minutes. I told her no, we had planned to be home based on the 8-11 timeframe that we’d been given, and that wouldn’t work. She said she was sorry, but they had emergencies. I canceled the appointment and will never be using Len the Plumber again. The fact that a plumbing company can schedule a call two days in advance for a technician to come out for a problem with a sink and toilet, and neither the tech nor the dispatcher realizes that the tech doesn’t have a snake with him (and for some reason he can’t just pick one up) speaks volumes about the company’s competency. Add to that the bungling of the initial appointment, and the fact that a Len the Plumber tech told me to my face that he has no way of knowing what model toilet he installed in my house without physically coming out to see it, and this is clearly a poorly-run company with an outdated and/or low-quality field service and dispatch system. There are many competent plumbing companies in the mid-Atlantic area. Len the Plumber is not one of them."

Greg S on September 2022

Avatar for Kelemer Brothers

Kelemer Brothers

4.96(
330
)

Kelemer Brothers

4.96(
330
)
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

Kelemer Brothers is a Family Business with a family values approach to replacement Windows. Winner of SUPER SERVICE AWARD: 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, and 2020. We have been building great relationships with excellent service for nearly 20 years and have over 150,000 window installations and counting! From our family business to your family, you can rely on us to treat you right. Serving Maryland, DC, and Virginia

"They did a great job installing a patio door for us. The owners were quick to respond to any questions we had and were very easy to work with. Highly recommend."

Matthew J on August 2025

Kelemer Brothers is a Family Business with a family values approach to replacement Windows. Winner of SUPER SERVICE AWARD: 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, and 2020. We have been building great relationships with excellent service for nearly 20 years and have over 150,000 window installations and counting! From our family business to your family, you can rely on us to treat you right. Serving Maryland, DC, and Virginia

"They did a great job installing a patio door for us. The owners were quick to respond to any questions we had and were very easy to work with. Highly recommend."

Matthew J on August 2025

Avatar for Ron Air Inc

Ron Air Inc

4.99(
157
)

Ron Air Inc

4.99(
157
)
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Ron Air is a family-owned and operated business that has been serving the Howard County area with superior products, outstanding workmanship and personalized customer service since 1977. For your HVAC needs, call Ron Air, neighbors who care enough to do the job right.

"Despite another company saying that the entire furnace would have to be be replaced because Carrier no longer made all the parts for the cracked heat exchanger, Ron Air was able to fix it by re-using one of the undamaged existing parts, thus saving me thousands. They also replaced the outdoor unit of my heat pump (a different zone in my house). I've used Ron Air for other services in the past, too, and I've always found them to be professional, honest, and reliable."

Matthew R on February 2021

Ron Air is a family-owned and operated business that has been serving the Howard County area with superior products, outstanding workmanship and personalized customer service since 1977. For your HVAC needs, call Ron Air, neighbors who care enough to do the job right.

"Despite another company saying that the entire furnace would have to be be replaced because Carrier no longer made all the parts for the cracked heat exchanger, Ron Air was able to fix it by re-using one of the undamaged existing parts, thus saving me thousands. They also replaced the outdoor unit of my heat pump (a different zone in my house). I've used Ron Air for other services in the past, too, and I've always found them to be professional, honest, and reliable."

Matthew R on February 2021

Avatar for DUCTZ of the Upper Bay Region

DUCTZ of the Upper Bay Region

4.96(
138
)

DUCTZ of the Upper Bay Region

4.96(
138
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

There IS A DIFFERENCE in duct cleaners. Most only clean "some" of the system, but DUCTZ Cleans the entire system including the Air Handler, supply and return ducts, and all components in the duct system. We are NADCA Certified (National Air Duct Cleaners Assoc) Air duct and Dryer vent Cleaning. DUCTZ is dedicated to making every home a cleaner and healthier place to be. We care about your home and respect it in every way. We don’t just clean ducts, we restore air conditioning systems to peak cleanliness. Our cleaning procedures are in full compliance with the industry standards from NADCA and ACCA. Not all duct cleaners are alike. Our techniques involve far more than simply air whipping your ducts. Ducts are fully brushed with brushes suitable for the ductwork being cleaned (see photos for the huge difference brushing makes over just using air tools). We take before and after photos as part of our process, assuring that all ducts are thouroughly clean. We are experienced and professional HVAC Air Duct cleaners, Ventilation System inspectors, and also perform quality Dryer Vent Cleanng serving Baltimore, Harford and Cecil Counties in Maryland. We are members of, and certified by NADCA (National Air Duct Cleaners Association) specializing in HVAC units and duct work: Certifications include "Air System Cleaning Specialist" and "Ventilation Sytem Mold Remediator" and certified Ventiliation System Inspector (ASCS, VSMR, CVI) from NADCA. Technicians are bright, well groomed, uniformed, experienced, attentive and well trained in all facets of indoor air quality. We service Residential, Commercial, Industrial and Restoration applications. DUCTZ is fully insured and bonded. Estimates are free, as they are an expected part of cleaning using the right methods and at the right price. When you want to breath easy, and live healthy, call DUCTZ. 410-692-9775

"We are having our HVAC replaced and our salesperson recommended DUCTZ. DUCTZ came out on-time today to clean our air vents. The communication prior to the visit was very clear and it was easy to understand the upcoming process. They were very considerate, we toured our home and they went right to work bringing in the needed equipment and moving necessary furniture to access the vent covers. They were diligent and stayed focused on the task. Before I knew it, they were reattaching the cleaned vent covers and removing the equipment. Within a few hours, we had before/after pictures and have a great sense of comfort knowing all the gunk is gone! I highly recommend DUCTZ!"

Lisa B on November 2025

There IS A DIFFERENCE in duct cleaners. Most only clean "some" of the system, but DUCTZ Cleans the entire system including the Air Handler, supply and return ducts, and all components in the duct system. We are NADCA Certified (National Air Duct Cleaners Assoc) Air duct and Dryer vent Cleaning. DUCTZ is dedicated to making every home a cleaner and healthier place to be. We care about your home and respect it in every way. We don’t just clean ducts, we restore air conditioning systems to peak cleanliness. Our cleaning procedures are in full compliance with the industry standards from NADCA and ACCA. Not all duct cleaners are alike. Our techniques involve far more than simply air whipping your ducts. Ducts are fully brushed with brushes suitable for the ductwork being cleaned (see photos for the huge difference brushing makes over just using air tools). We take before and after photos as part of our process, assuring that all ducts are thouroughly clean. We are experienced and professional HVAC Air Duct cleaners, Ventilation System inspectors, and also perform quality Dryer Vent Cleanng serving Baltimore, Harford and Cecil Counties in Maryland. We are members of, and certified by NADCA (National Air Duct Cleaners Association) specializing in HVAC units and duct work: Certifications include "Air System Cleaning Specialist" and "Ventilation Sytem Mold Remediator" and certified Ventiliation System Inspector (ASCS, VSMR, CVI) from NADCA. Technicians are bright, well groomed, uniformed, experienced, attentive and well trained in all facets of indoor air quality. We service Residential, Commercial, Industrial and Restoration applications. DUCTZ is fully insured and bonded. Estimates are free, as they are an expected part of cleaning using the right methods and at the right price. When you want to breath easy, and live healthy, call DUCTZ. 410-692-9775

"We are having our HVAC replaced and our salesperson recommended DUCTZ. DUCTZ came out on-time today to clean our air vents. The communication prior to the visit was very clear and it was easy to understand the upcoming process. They were very considerate, we toured our home and they went right to work bringing in the needed equipment and moving necessary furniture to access the vent covers. They were diligent and stayed focused on the task. Before I knew it, they were reattaching the cleaned vent covers and removing the equipment. Within a few hours, we had before/after pictures and have a great sense of comfort knowing all the gunk is gone! I highly recommend DUCTZ!"

Lisa B on November 2025

Avatar for A.P. Mathews Heating & Air Conditioning Inc

A.P. Mathews Heating & Air Conditioning Inc

4.97(
310
)

A.P. Mathews Heating & Air Conditioning Inc

4.97(
310
)
Customers say: Quality work
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers

Super Service Award Winner 12 Years in a Row!! A.P. Mathews Heating and Air Conditioning is a family owned and operated full-service heating, ventilation and air conditioning Company. 5 Employees. No subs. Cost is determined by the job. No travel charges. Extra charge for after hours service. License #'S 7649 and D1 1704. May contact via telephone, email or schedule service via website www.apmathews.com. Additional DBA - A P Mathews Heating & Air Cond. Award Winning.

"A.P. Mathews Heating and Air Conditioning consistently provides stellar service. This is the second time I’ve reach out to this company. I received such great service with them previously, that when my HVAC started leaking, it was a no brainer to call A.P. Mathews Heating and A/C to resolve this issue. Services were arranged according to a mutually agreeable time, and they had the HVAC leak repaired pronto. I am pleased with the entire process from start to finish, and I will definitely use their services for any future needs."

Naimah S on August 2022

Super Service Award Winner 12 Years in a Row!! A.P. Mathews Heating and Air Conditioning is a family owned and operated full-service heating, ventilation and air conditioning Company. 5 Employees. No subs. Cost is determined by the job. No travel charges. Extra charge for after hours service. License #'S 7649 and D1 1704. May contact via telephone, email or schedule service via website www.apmathews.com. Additional DBA - A P Mathews Heating & Air Cond. Award Winning.

"A.P. Mathews Heating and Air Conditioning consistently provides stellar service. This is the second time I’ve reach out to this company. I received such great service with them previously, that when my HVAC started leaking, it was a no brainer to call A.P. Mathews Heating and A/C to resolve this issue. Services were arranged according to a mutually agreeable time, and they had the HVAC leak repaired pronto. I am pleased with the entire process from start to finish, and I will definitely use their services for any future needs."

Naimah S on August 2022

Avatar for Alpha Plumbing

Alpha Plumbing

4.90(
726
)

Alpha Plumbing

4.90(
726
)
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

Alpha Plumbing has been serving the Baltimore, Howard and Anne Arundel County areas since 1991 - more than 25 years! We handle residential services of all kinds from Bathrooms to Kitchens, No job is too large or too small. We can install any new fixtures that we provide or one that you have purchased. We will ensure a safe, properly functioning fixture with a pleasing new look. We can take care of all your needs. Just check out the list of our complete services below. We are happy to help our residential and commercial plumbing customers. Call today!

"Appeared to go fine. Line is cleared. Backup on main line is scary. Bob Taylor did a great job. Thank you so much."

Royce C on October 2022

Alpha Plumbing has been serving the Baltimore, Howard and Anne Arundel County areas since 1991 - more than 25 years! We handle residential services of all kinds from Bathrooms to Kitchens, No job is too large or too small. We can install any new fixtures that we provide or one that you have purchased. We will ensure a safe, properly functioning fixture with a pleasing new look. We can take care of all your needs. Just check out the list of our complete services below. We are happy to help our residential and commercial plumbing customers. Call today!

"Appeared to go fine. Line is cleared. Backup on main line is scary. Bob Taylor did a great job. Thank you so much."

Royce C on October 2022

Avatar for Remodeling Wizards of Maryland

Remodeling Wizards of Maryland

4.95(
167
)

Remodeling Wizards of Maryland

4.95(
167
)
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

Remodeling Wizards of Maryland is your one stop shop for ALL your Remodeling needs! Remodeling Wizards of Maryland is a family owned and operated company where our customers are treated like family. We strive to offer superior products at reasonable cost . We pride ourselves on insuring customer satisfaction and always look forward to a returning customer or a referral. Simply put, we bend over backwards, jump through any hoops, and cross any bridge to make sure that our customers are 110% satisfied.Cost of project is by job with care given to each and every customer and project. Owners John Capozzi and Marirose Capozzi. 443-310-2484

"I am very pleased with Remodeling Wizards of Maryland. I was super happy with the deck work that has been completed. I have used this company for many different projects over 2 homes and about 10 years. Thanks!"

Matthew U on October 2020

Remodeling Wizards of Maryland is your one stop shop for ALL your Remodeling needs! Remodeling Wizards of Maryland is a family owned and operated company where our customers are treated like family. We strive to offer superior products at reasonable cost . We pride ourselves on insuring customer satisfaction and always look forward to a returning customer or a referral. Simply put, we bend over backwards, jump through any hoops, and cross any bridge to make sure that our customers are 110% satisfied.Cost of project is by job with care given to each and every customer and project. Owners John Capozzi and Marirose Capozzi. 443-310-2484

"I am very pleased with Remodeling Wizards of Maryland. I was super happy with the deck work that has been completed. I have used this company for many different projects over 2 homes and about 10 years. Thanks!"

Matthew U on October 2020

Avatar for Elmar Services

Elmar Services

4.91(
185
)

Elmar Services

4.91(
185
)
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

Elmar Services., an independent and family-owned heating and air conditioning business, has been serving residential and commercial customers for over a decade. We have made it our mission to treat customers as family, making sure they feel comfortable from the first impression to the end of service while maintaining a high level of excellence and professionalism. All of the equipment we use and recommend is certified to be of exceptional quality. Additionally, we constantly strive to stay competitive with our prices while serving you with the utmost quality. In an emergency, Elmar Services will make sure you and your family are taken care of. And since a major portion of our business comes from referrals, our continued success is a reflection of our commitment to our customers. We are also a proud member of DuctlessAmerica.com, a one stop shop for ductless products.

"They were very good HVAC company. They were very good. My dad really liked them. They were awesome and excellent. They left good impression on my parents. The price was reasonable. My parents had a great exprience."

Jesse S on December 2022

Elmar Services., an independent and family-owned heating and air conditioning business, has been serving residential and commercial customers for over a decade. We have made it our mission to treat customers as family, making sure they feel comfortable from the first impression to the end of service while maintaining a high level of excellence and professionalism. All of the equipment we use and recommend is certified to be of exceptional quality. Additionally, we constantly strive to stay competitive with our prices while serving you with the utmost quality. In an emergency, Elmar Services will make sure you and your family are taken care of. And since a major portion of our business comes from referrals, our continued success is a reflection of our commitment to our customers. We are also a proud member of DuctlessAmerica.com, a one stop shop for ductless products.

"They were very good HVAC company. They were very good. My dad really liked them. They were awesome and excellent. They left good impression on my parents. The price was reasonable. My parents had a great exprience."

Jesse S on December 2022

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Heating and Air Conditioning questions, answered by experts

It’s never a good idea to run your AC without a filter, even just for a night. The filter defends your HVAC system from the dust, dirt, debris, and other grime in your home. Without a filter, those contaminants are more likely to get inside your system and potentially damage it. 

Yes, you can potentially save $60 to $200 by handling your own air conditioner capacitor installation. However, capacitor replacement comes with the risk of electric shock. Only attempt this if you have the knowledge and protective gear to carry it out safely. Otherwise, we recommend hiring an HVAC pro with the experience to properly diagnose the issue and avoid damaging other parts of your AC unit.

Signs of a damaged evaporator coil include warm air from vents, frequent starts and stops without proper cooling, failure to turn on, refrigerant leaks, and unusual noises. If you suspect issues with your AC system or its components, it’s best to call an AC repair technician for proper diagnosis and repairs.

A power outage can damage your air conditioner, just like a power surge can damage any electrical device or appliance. In most cases, your circuit breaker or built-in surge protection on your AC unit protects your AC and just needs a reset. But in other cases, it might be that your AC compressor or capacitor was blown during the power surge. You’ll need to have an HVAC professional repair or replace any AC parts. 

On a summer day, expect your AC to run between 12 and 16 hours. However, this time frame depends on just how hot it is outside and the comfortable temperature you’re hoping to maintain indoors. Assuming the size of your AC is appropriate for the space you’re trying to cool, it shouldn’t be a problem for it to work this many hours.

The Annapolis, MD 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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