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There are 78 highly-rated local heating and air conditioning pros.

TRUSTED BY ADELPHI, MD HOMEOWNERS

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

*The Angi rating for Heating And Air Conditioning Service companies in Adelphi, 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 Adelphi, 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 October 24, 2025

Reviewed in May 2024
My AC system needed to be replaced due to its age and technocooling heating and air did a fenomenal job upgrading my system. They are very friendly and knowledgeable. Strongly recommend them for any HVAC repairs.
Technocooling Heating & Air
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Reviewed in November 2019
No problems at all. I have the plan, two visits a year— one for heating one for A/C— for about $180 a year. Worth the expense.
Vito Services
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Reviewed in August 2016
David was professional and efficient. He provided a review of our system's condition and suggested one maintenance repair - which we agreed with. Will plan to continue with ICS for our future heat pump/A/C needs. Flat rate for inspection, charged for part, and included a "first-time" customer...
Integrated Climate Systems
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Reviewed in August 2015
The AC stopped working in July. We received bids from 3 installers to replace our 20-year-old furnace and AC. The bids for a 16 SEER 2.5 ton AC and gas furnace were $4300 with Comfortmaker by Total Comfort $5359 with Carrier installed by Kirkwood Heating and AC $6964 with Carrier...
Total Comfort Heating Air Conditioning LLC
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Reviewed in June 2013
The owner of PCK HVAC LLC arrived on time and during a high heat period so there were a lot of open calls. He was punctual, professional and honest. I had done a preliminary inspection and could not assess what was wrong as the air conditioner consistently blew the electrical fuse. He assessed...
PCK HVAC LLC
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Reviewed in August 2012
I highly recommend Rowan Heating and Air Conditioning to anyone in need of these services.
Rowan Heating & Air Conditioning Inc
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Reviewed in July 2012
Oscar Corado supposedly owns a company called "Osalco," but I doubt that it is registered in DC or MD. We needed an HVAC specialist for our 6 unit apartment building, and he came highly recommended by my realtor. He is arrogant, but he always returned my calls and showed up to the job site on...
Oscar Corado
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Reviewed in September 2007
Flood Air Conditioning, Plumbing, & Heating installed our air conditioner 2 years ago. They are familiar with the unit and know what it needs yearly to run efficiently and in good working condition. I was impressed with the fact that they remembered my name when they got here. The appointment...
John C. Flood - DC & Maryland
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Reviewed in July 2006
We have Adema Heating for years to maintain our furnace and air conditioning. They are very consistent with the quality of their work and very reputable.
Adema Heating & Air Conditioning, Inc.
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Find Heating and air conditioning pros in Adelphi

MARYLAND HEATING & COOLING

MARYLAND HEATING & COOLING

Customers say: Quick response

Recommended by 98% of Angi customers

17 local quotes requested

Maryland Heating & Cooling is a family owned & operated HVAC business located in Howard County. Our staff and licensed service technicians are well skilled & top notch, therefore providing you with outstanding customer service. You can always count on us to be on time and provide you with an honest evaluation of your HVAC system. We look forward to helping you with all your HVAC needs. Give us a call today @ 410-465-0081

"Couldn't be more pleased. Quick to respond, great communication and super friendly and professional service. Highly recommend"

Edward C on August 2025

"Couldn't be more pleased. Quick to respond, great communication and super friendly and professional service. Highly recommend"

Edward C on August 2025

GAC Services

GAC Services

Customers say: Quick response

Recommended by 93% of Angi customers

655 local quotes requested

GAC Services is a residential cooling, heating, and electrical contractor setting new standards in the Maryland HVAC and electric market. Since 1970, we’ve developed a strong reputation for providing the Montgomery County and Frederick County areas with reliable cooling and heating services. In 2014, we expanded our service offerings to include electrical services—allowing us to offer our customers the same great service in a new area of business. Additional DBA: Gaithersburg Heating & Cooling

"Highly professional, knowledgeable and well behaved technician. Prices offered were good too. I definitely recommend the company."

Deepak K on February 2025

"Highly professional, knowledgeable and well behaved technician. Prices offered were good too. I definitely recommend the company."

Deepak K on February 2025

Glenmont Heating & A/C

Glenmont Heating & A/C

Customers say: Super punctual

33 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

"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

HPC Services

HPC Services

Customers say: Quick response

Recommended by 100% of Angi customers

379 local quotes requested

No call out fee! Call today for your free quote! 15% Military and Veterans discount! $50 Water Heater Tune Up! $50 AC Tune Up! HPC Services is a proud Service Disabled Veteran Owned Small Business brining a fresh take on HVAC and plumbing to Maryland. Our technicians are trained to service, repair, and maintain your systems. HPC Services offers HVAC servicing and repair, HVAC replacement, new HVAC installations, ductwork, duct and vent cleaning, plumbing services and pipe repairs, main drain line snaking, line snaking, drain cleaning, clog removal and more! Financing available!

"Brandon identified and isolated the water leak immediately. His expertise and speed were unmatched."

Ashley S on February 2025

"Brandon identified and isolated the water leak immediately. His expertise and speed were unmatched."

Ashley S on February 2025

Sila Heating, Cooling and Plumbing

7000 Virginia Manor Rd

Sila Heating, Cooling and Plumbing

7000 Virginia Manor Rd

Customers say: Super punctual

715 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

"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

F.H. Furr Plumbing Heating & Air Conditioning Inc

F.H. Furr Plumbing Heating & Air Conditioning Inc

Customers say: Super punctual

205 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

"Nice, reliable, and responded immediately."

Ethan Q on January 2025

HVAC Superior Solutions Inc

HVAC Superior Solutions Inc

Customers say: Quick response

Recommended by 100% of Angi customers

52 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

"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

Aire Serv of Prince Georges County

Aire Serv of Prince Georges County

Customers say: Quick response

Recommended by 91% of Angi customers

21 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

"repair of ac"

Monti B on July 2025

Perdue Heating & Air LLC

Perdue Heating & Air LLC

Customers say: Quality work

Recommended by 96% of Angi customers

25 local quotes requested

Discover the undisputed leader in heating and cooling systems for residential and commercial buildings—Perdue Heating & Air, LLC In business for 40 years, we specialize in high efficiency heating and cooling systems, and we work with all makes and models of heating and air-conditioning units. Expert Services at Affordable Prices Whether you need a heat pump installation or tune-up for your air-conditioning unit, we provide a variety of expert services at prices that are very competitive for the industry in our area. Contact our heating and air-conditioning company in Laplata, Maryland, for complete HVAC services, including heat pump installations. We provide air conditioning and heating service and replacement of equipment. We offer service contracts and we are a veteran owned company with over 55 years of experience.

"They did quality work They are on time Very professional"

Lori S on September 2021

"They did quality work They are on time Very professional"

Lori S on September 2021

Cyprus Air Heating, Cooling and Fireplaces

Cyprus Air Heating, Cooling and Fireplaces

Customers say: Quality work

24 local quotes requested

58 years of experience

FREE IN-HOME ESTIMATES | GET A FREE AIR CONDITIONER Cyprus Air Heating & Cooling is your single resource for all your home comfort needs, from tailoring your ideal comfort system to installation, service and beyond. Cyprus Air installs and repairs a variety of Heating & Cooling equipment. With over 56 years of experience in the business, we also offer other home improvement and indoor comfort services such as Gas Fireplaces & Gas logs, and Duct Cleaning. With so many years of design, and installations in Northern Virginia, DC and Maryland, Cyprus Air offers its service oriented expertise and reliability to ensure the high quality standards that architects, engineers, and homeowners have come to rely on from one of the industry leaders.

"I called to get an inspection done on my AC unit and was quoted $90 for the inspection plus $120 an hr for ADDITIONAL hrs. I ASKED when do I know when the “additional hrs start”, He stated that the tech would let me know once the inspection was done and then at that time he would let me know if there was work that needed to be fixed or if there was nothing then the service would end and I would only have to pay the $90. They charged me $210 for the inspection. I called and requested that we both listen to the call (Because all calls are recorded) They played the call, heard what the rep said and then stated they would get back to me. When I finally reached them again (they never called me back), they stated I would not get a refund, then replayed the call cutting out the part when the rep stated clearly that the service was only $90. They not only GASLIGHTED me, but they altered the recording. $120 may not matter to most but it sure matters to me."

Kay H on June 2025

"I called to get an inspection done on my AC unit and was quoted $90 for the inspection plus $120 an hr for ADDITIONAL hrs. I ASKED when do I know when the “additional hrs start”, He stated that the tech would let me know once the inspection was done and then at that time he would let me know if there was work that needed to be fixed or if there was nothing then the service would end and I would only have to pay the $90. They charged me $210 for the inspection. I called and requested that we both listen to the call (Because all calls are recorded) They played the call, heard what the rep said and then stated they would get back to me. When I finally reached them again (they never called me back), they stated I would not get a refund, then replayed the call cutting out the part when the rep stated clearly that the service was only $90. They not only GASLIGHTED me, but they altered the recording. $120 may not matter to most but it sure matters to me."

Kay H on June 2025

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Heating and Air Conditioning questions, answered by experts

Your air conditioner can temporarily run with a dirty filter, but it won’t work as efficiently. It will need to work harder to blow cool air throughout the room or house, and this can eventually cause the air conditioner to overheat or die prematurely. It’s much more cost-effective to clean or replace filters than to pay higher utility bills each month and replace the entire AC unit more often.

If your AC refrigerant is low, you may notice that the unit takes longer than usual to cool your home or that your energy bills are higher. You may even feel a warm breeze coming from the vents when the AC refrigerant is low. Don’t attempt to check refrigerant levels yourself. Only certified AC repair pros should check and refill refrigerant.

An AC inspection costs anywhere from $75 to $200, while a full HVAC system inspection that includes your furnace ranges from $200 to $450. While there's a cost to a home AC inspection, it can save you hundreds or thousands in the long run by catching problems, avoiding breaks, and saving you money on your utility bills.

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

A few drips here and there should not be cause for concern, but if your unit is leaking a large amount of water, then it’s advised that you stop using it until the problem is identified and a solution is determined. The more you use it during a leak, the more issues it will cause.

The Adelphi, 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.

See all articles

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