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Get matched with top heating and air conditioning pros in Largo, MD

There are 52 highly-rated local heating and air conditioning pros.

TRUSTED BY LARGO, MD HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
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    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Largo

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
624 local quotes requested
36 years of experience

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


Avatar for Glenmont Heating & A/C

Glenmont Heating & A/C

4.62(
65
)
Approved Pro

Glenmont Heating & A/C

4.62(
65
)
Approved Pro
Customers say: Super punctual
31 local quotes requested
41 years of experience

When Glenmont Heating & Air Conditioning was founded 28 years ago, we had one goal in mind; providing area families, and businesses with solutions that fit their lifestyles and needs, as well as their wallets. If you have any questions about heating and air conditioning maintenance, a new HVAC system, or are looking into installing a more energy efficient system, Glenmont Heating and Air is the solution to your needs.

"Not Recommended for Thermostat Replacement — Unreasonable and Unfair $700 Charge I do not recommend Glenmont Air Conditioning & Heating for thermostat replacement work. I was charged $700 for a simple thermostat replacement, which I believe was unreasonably high and unfair. I was under the impression that the quoted estimate represented the maximum expected cost only if the technician had to perform additional wiring or complex installation work. If you want to install an Ecobee or any other type of thermostat, you can simply YouTube the installation, which provides step-by-step instructions on how to unwire, label, and rewire to the new thermostat. For my installation, I was under the impression that additional wiring might be needed, but it turned out to be a straightforward swap of the old thermostat with a new Ecobee unit, a process that took only about 15 minutes. Despite that, I was still charged the full amount. The Ecobee Premium thermostat itself costs around $250, meaning they charged nearly $500 just for labor, regardless of how simple or quick the installation is. To make matters worse, the installation only comes with a 30-day warranty, which hardly justifies such a high price. I tried to communicate and explain that this charge was unreasonably high and unfair, but they simply said, “It is what it is.” If you’re considering a thermostat installation, I strongly suggest hiring a professional through Thumbtack, where qualified experts can do the same job for under $150 with transparent pricing and good service. I expected fairness, honesty, and reasonable pricing from Glenmont, but unfortunately, that was not my experience."

Soheil R on October 2025

When Glenmont Heating & Air Conditioning was founded 28 years ago, we had one goal in mind; providing area families, and businesses with solutions that fit their lifestyles and needs, as well as their wallets. If you have any questions about heating and air conditioning maintenance, a new HVAC system, or are looking into installing a more energy efficient system, Glenmont Heating and Air is the solution to your needs.

"Not Recommended for Thermostat Replacement — Unreasonable and Unfair $700 Charge I do not recommend Glenmont Air Conditioning & Heating for thermostat replacement work. I was charged $700 for a simple thermostat replacement, which I believe was unreasonably high and unfair. I was under the impression that the quoted estimate represented the maximum expected cost only if the technician had to perform additional wiring or complex installation work. If you want to install an Ecobee or any other type of thermostat, you can simply YouTube the installation, which provides step-by-step instructions on how to unwire, label, and rewire to the new thermostat. For my installation, I was under the impression that additional wiring might be needed, but it turned out to be a straightforward swap of the old thermostat with a new Ecobee unit, a process that took only about 15 minutes. Despite that, I was still charged the full amount. The Ecobee Premium thermostat itself costs around $250, meaning they charged nearly $500 just for labor, regardless of how simple or quick the installation is. To make matters worse, the installation only comes with a 30-day warranty, which hardly justifies such a high price. I tried to communicate and explain that this charge was unreasonably high and unfair, but they simply said, “It is what it is.” If you’re considering a thermostat installation, I strongly suggest hiring a professional through Thumbtack, where qualified experts can do the same job for under $150 with transparent pricing and good service. I expected fairness, honesty, and reasonable pricing from Glenmont, but unfortunately, that was not my experience."

Soheil R on October 2025


F.H. Furr Plumbing Heating & Air Conditioning Inc

4.33(
15
)
Approved Pro

F.H. Furr Plumbing Heating & Air Conditioning Inc

4.33(
15
)
Approved Pro
Customers say: Super punctual
189 local quotes requested
44 years of experience

Whether you need a repair, preventive maintenance, or replacement, we are your plumbing, heating, and air conditioning service provider in the northern Virginia and surrounding areas. We invite you to give us a call!

"Nice, reliable, and responded immediately."

Ethan Q on January 2025

Whether you need a repair, preventive maintenance, or replacement, we are your plumbing, heating, and air conditioning service provider in the northern Virginia and surrounding areas. We invite you to give us a call!

"Nice, reliable, and responded immediately."

Ethan Q on January 2025


Avatar for Aire Serv of Prince Georges County

Aire Serv of Prince Georges County

4.42(
12
)
Approved Pro

Aire Serv of Prince Georges County

4.42(
12
)
Approved Pro
Customers say: Quick response
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
16 local quotes requested

Aire Serv Heating & Air Conditioning can provide many services to keep you and your family comfortable. A few of the products and services we can provide for your heating, cooling and indoor air quality needs are Service and Repair, System Maintenance, Advantage Member Plans, Replacement & Installation, Guarantees, Air Cleaning and Purification, Duct Sealing, Indoor Air Quality, Heating, Air Conditioning and Indoor Air Quality Products, and Commercial Services for your business. Our Exclusive Written Guarantees Are Designed to Protect You and Your Home Request a free home estimate, Design your own heating and cooling system, Shop for filters or accessories online, Request an In-Home Aire Quality Survey.

"repair of ac"

Monti B on July 2025

Aire Serv Heating & Air Conditioning can provide many services to keep you and your family comfortable. A few of the products and services we can provide for your heating, cooling and indoor air quality needs are Service and Repair, System Maintenance, Advantage Member Plans, Replacement & Installation, Guarantees, Air Cleaning and Purification, Duct Sealing, Indoor Air Quality, Heating, Air Conditioning and Indoor Air Quality Products, and Commercial Services for your business. Our Exclusive Written Guarantees Are Designed to Protect You and Your Home Request a free home estimate, Design your own heating and cooling system, Shop for filters or accessories online, Request an In-Home Aire Quality Survey.

"repair of ac"

Monti B on July 2025


Avatar for Petro Home Services

Petro Home Services

4.44(
98
)
Approved Pro

Petro Home Services

4.44(
98
)
Approved Pro
Customers say: True professional
540 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

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


Avatar for Vazquez & Son construction Inc.

Vazquez & Son construction Inc.

4.56(
123
)
Approved Pro

Vazquez & Son construction Inc.

4.56(
123
)
Approved Pro
Customers say: Super punctual
442 local quotes requested
22 years of experience

With over 15 years of experience, Vazquez & Sons Construction should be your first call for your home improvement projects. We specialize in Kitchen & Bathroom Remodeling, Carpet Installation, General Remodeling and General Handyman projects. Call us today to start your home improvement project!

"Arrived on time, quoted great price, had necessary equipment, and did a good job."

Jonathan B on October 2025

With over 15 years of experience, Vazquez & Sons Construction should be your first call for your home improvement projects. We specialize in Kitchen & Bathroom Remodeling, Carpet Installation, General Remodeling and General Handyman projects. Call us today to start your home improvement project!

"Arrived on time, quoted great price, had necessary equipment, and did a good job."

Jonathan B on October 2025


Avatar for HVAC Superior Solutions Inc

HVAC Superior Solutions Inc

5.00(
5
)
Approved Pro

HVAC Superior Solutions Inc

5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
56 local quotes requested

FULL HVAC REPAIR AND REPLACEMENT- ALL HVAC MAKES AND MODELS OF EQUIPMENT. Professional HVAC technicians in the DC-MD-V area. Knowledge, Tools and Skills at your service. HVAC Superior knows how much you and your family depends on your A/C and Heat service system, so we make sure it continuously provide an excellent performance.

"I had a leak somewhere in my heat pump system from 2013 in a 4 floor condo building. Every other company was quoting me $7k+ to replace the system but it turns out to be a leak in the line set between the 3rd floor and the roof! We had a new line set installed and I spent $2550 in total! The crew was very professional and worked extremely had in the hottest weather to get the job done, too!"

Trung T on August 2021

FULL HVAC REPAIR AND REPLACEMENT- ALL HVAC MAKES AND MODELS OF EQUIPMENT. Professional HVAC technicians in the DC-MD-V area. Knowledge, Tools and Skills at your service. HVAC Superior knows how much you and your family depends on your A/C and Heat service system, so we make sure it continuously provide an excellent performance.

"I had a leak somewhere in my heat pump system from 2013 in a 4 floor condo building. Every other company was quoting me $7k+ to replace the system but it turns out to be a leak in the line set between the 3rd floor and the roof! We had a new line set installed and I spent $2550 in total! The crew was very professional and worked extremely had in the hottest weather to get the job done, too!"

Trung T on August 2021


Romen Handyman Services, LLC

5.00(
1
)
Approved Pro

Romen Handyman Services, LLC

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

Romen Handyman Services is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Romen Handyman Services is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"Excellent work!"

Nick X on September 2022

Romen Handyman Services is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Romen Handyman Services is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"Excellent work!"

Nick X on September 2022


Avatar for Dwayne HVAC

Dwayne HVAC

4.97(
17
)
Approved Pro

Dwayne HVAC

4.97(
17
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 years of experience

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

"Dwayne is a wonderful person and extremely competent. He knows his stuff. He didnâ t try to oversell anything or any services which was much appreciated. They are also very reasonable and even are available on Saturdays. The office manager, Carol is an absolute doll and a pleasure to talk to. I cannot recommend them enough!!"

Afreena T on August 2023

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

"Dwayne is a wonderful person and extremely competent. He knows his stuff. He didnâ t try to oversell anything or any services which was much appreciated. They are also very reasonable and even are available on Saturdays. The office manager, Carol is an absolute doll and a pleasure to talk to. I cannot recommend them enough!!"

Afreena T on August 2023


Avatar for Rocky HVAC

Rocky HVAC

4.60(
10
)
Approved Pro

Rocky HVAC

4.60(
10
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
150 local quotes requested

At Rocky HVAC, we pride ourselves on being a leading HVAC service provider that prioritizes customer satisfaction and quality craftsmanship. With years of experience in the industry, our team of dedicated technicians is committed to delivering reliable, efficient, and cost-effective heating, ventilation, and air conditioning solutions to meet the unique needs of our residential and commercial clients. We combine industry expertise with personalized service to ensure that every customer receives the attention to detail and professionalism they deserve. Choose Rocky HVAC for dependable, professional, and customer-focused HVAC services. We are dedicated to exceeding your expectations and delivering superior comfort, efficiency, and reliability for your residential or commercial property. Contact us today to experience the difference of working with a trusted HVAC partner like us.

"On Wednesday, 08/28/2024, I used the Angi app because my AC unit was not coming on and had a red light and I had suspected a compressor. Rocky HVAC came to inspect the AC unit. They told me that it had a leak and that they would fix the leak and then add freon for a total of $1,150.00, including a diagnostic fee of $75.00, which I paid same day (08/28/2024). The next day (Thursday, 08/29/2024) I called the provider and asked them to go ahead and repair the unit. They later called me and said that they had fixed it and requested payment. I paid the requested amount of 1,075.00 upon they claim of repairs, but then just a few hours later, my tenant called me that the unit was not working, and that the property was very hot. I called back Rocky HVAC on Friday, 08/30/2024 and explained to them that the unit was not working. They said that they would call me back and after waiting for several hours without getting a call back, I called again and this time they said that they will send someone back to the property. Rocky HVAC finally came the next day (Saturday, 08/31/2024) and upon looking at the unit, they told my tenant that the unit needs to be replaced. When I go to the property, my tenant relayed the information to me, so I called Rocky HVAC and asked why I was not told from the storm art that fixing a freon leak was never an option, but rather replacing the entire unit. They claimed that they had said so but it is extremely disingenuous because if they had ever mentioned that I needed a new unit, I would not have wasted time and money to fix something else. I asked them for a refund of $1,150.00, but they are instead telling me that they would rather credit me $500.00 towards a new unit."

Mildmayking E on October 2024

At Rocky HVAC, we pride ourselves on being a leading HVAC service provider that prioritizes customer satisfaction and quality craftsmanship. With years of experience in the industry, our team of dedicated technicians is committed to delivering reliable, efficient, and cost-effective heating, ventilation, and air conditioning solutions to meet the unique needs of our residential and commercial clients. We combine industry expertise with personalized service to ensure that every customer receives the attention to detail and professionalism they deserve. Choose Rocky HVAC for dependable, professional, and customer-focused HVAC services. We are dedicated to exceeding your expectations and delivering superior comfort, efficiency, and reliability for your residential or commercial property. Contact us today to experience the difference of working with a trusted HVAC partner like us.

"On Wednesday, 08/28/2024, I used the Angi app because my AC unit was not coming on and had a red light and I had suspected a compressor. Rocky HVAC came to inspect the AC unit. They told me that it had a leak and that they would fix the leak and then add freon for a total of $1,150.00, including a diagnostic fee of $75.00, which I paid same day (08/28/2024). The next day (Thursday, 08/29/2024) I called the provider and asked them to go ahead and repair the unit. They later called me and said that they had fixed it and requested payment. I paid the requested amount of 1,075.00 upon they claim of repairs, but then just a few hours later, my tenant called me that the unit was not working, and that the property was very hot. I called back Rocky HVAC on Friday, 08/30/2024 and explained to them that the unit was not working. They said that they would call me back and after waiting for several hours without getting a call back, I called again and this time they said that they will send someone back to the property. Rocky HVAC finally came the next day (Saturday, 08/31/2024) and upon looking at the unit, they told my tenant that the unit needs to be replaced. When I go to the property, my tenant relayed the information to me, so I called Rocky HVAC and asked why I was not told from the storm art that fixing a freon leak was never an option, but rather replacing the entire unit. They claimed that they had said so but it is extremely disingenuous because if they had ever mentioned that I needed a new unit, I would not have wasted time and money to fix something else. I asked them for a refund of $1,150.00, but they are instead telling me that they would rather credit me $500.00 towards a new unit."

Mildmayking E on October 2024

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Heating and Air Conditioning questions, answered by experts

If you have central air conditioning, it’s fine to run your AC all day if that’s what you want—as long as the AC unit is in good condition. But if your AC runs constantly when you don’t want it to, there may be a problem with your system (like the ones we’ve mentioned above). Window AC units and wall air conditioners aren’t as powerful as central AC, so you should only run those kinds of air conditioners for eight to 12 hours at a time.

To extend your HVAC system’s lifespan, it’s crucial to keep up with maintenance. This includes changing filters and thermostat batteries, keeping the outside unit clean and clear of clutter, and lubricating moving parts. Watch out for leaks, mold buildup, and blockages to ensure your unit stays in good working order. Spotting these issues early can be the difference between a simple, wallet-friendly repair and an expensive replacement.

You should schedule a full-service AC inspection at least once a year to ensure it works properly. During this time, your local AC repair pro will check:

  • Safety components, such as carbon monoxide leaks

  • Cooling components, like coolant levels 

  • Electrical components, such as inspecting fuses and wiring

  • Complete system services, like flushing the drain line

While you can DIY some aspects, like changing your air filter, it’s imperative that you call in a pro to inspect your AC for you. Your air conditioner has refrigerant that could be hazardous to your health if not handled properly, so it’s best to let a pro with experience take on this job.

For washable or electrostatic air conditioner filters, you can soak and rinse them with water. If you rinse the filter with water, make sure to use a faucet, shower head, or garden hose with a gentle water pressure setting, as strong water pressure could damage the filter.

But for disposable filters, water could ruin the filter, even allowing mold to grow in the filter. Instead, these filters should be replaced.

Some AC filters, known as reusable filters, can be cleaned and reinserted. Most AC filters, however, are disposable and cannot be cleaned. 

The Largo, 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.