With more than a decade of industry experience, we are dedicated to delivering top-notch installation, service, and repair solutions for all your heating and cooling requirements. At our company, honesty and integrity form the solid foundation on which we operate. Our expertise lies in Central Air Conditioning, Plumbing, Heating, Furnace systems, and a wide range of HVAC-related projects. We take immense pride in the superior quality of our work and our unwavering commitment to achieving exceptional outcomes. Building lasting relationships with our clients is a core value we hold dear, and we strive to exceed your expectations in every interaction. Your satisfaction is our guarantee, and we are genuinely excited to embark on this journey with you. Trust us to cater to your heating and cooling needs, and experience the unparalleled level of professionalism and service that sets us apart. Contact us today and let us demonstrate our expertise and dedication to your complete satisfaction!
"Edwin was prompt, polite, professional, but best of all extremely knowledgeable. He definitely â knew his stuffâ and didnâ t try to â sellâ me anything that wasnâ t necessary. Very honest and straightforward. Easy going and patient. Would highly recommend and plan to use him for all my HVAC issues going forward."
Laura A on July 2023
With more than a decade of industry experience, we are dedicated to delivering top-notch installation, service, and repair solutions for all your heating and cooling requirements. At our company, honesty and integrity form the solid foundation on which we operate. Our expertise lies in Central Air Conditioning, Plumbing, Heating, Furnace systems, and a wide range of HVAC-related projects. We take immense pride in the superior quality of our work and our unwavering commitment to achieving exceptional outcomes. Building lasting relationships with our clients is a core value we hold dear, and we strive to exceed your expectations in every interaction. Your satisfaction is our guarantee, and we are genuinely excited to embark on this journey with you. Trust us to cater to your heating and cooling needs, and experience the unparalleled level of professionalism and service that sets us apart. Contact us today and let us demonstrate our expertise and dedication to your complete satisfaction!
"Edwin was prompt, polite, professional, but best of all extremely knowledgeable. He definitely â knew his stuffâ and didnâ t try to â sellâ me anything that wasnâ t necessary. Very honest and straightforward. Easy going and patient. Would highly recommend and plan to use him for all my HVAC issues going forward."
Laura A on July 2023
Our mission at 3MMechanical is to continue the growth of our business by doing right by all of our clients. We love seeing that one of a kind smile on a home owners face at the end of a project! 3MMechanical stacks up with the competition and surpasses it with competitive prices, second to none workmanship and a prompt/responsive team! We give you quality that you can measure, and a finished product that will enhance your home forever. Call us today!
"He delivered excellent service by promptly identifying the issue, sourcing the required part, and fully repairing the heating unit in a remarkably short time."
Chris J on March 2025
Our mission at 3MMechanical is to continue the growth of our business by doing right by all of our clients. We love seeing that one of a kind smile on a home owners face at the end of a project! 3MMechanical stacks up with the competition and surpasses it with competitive prices, second to none workmanship and a prompt/responsive team! We give you quality that you can measure, and a finished product that will enhance your home forever. Call us today!
"He delivered excellent service by promptly identifying the issue, sourcing the required part, and fully repairing the heating unit in a remarkably short time."
Chris J on March 2025
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
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
Family Owned & Operated, Grove Heating and Cooling, Inc. specializes in designing, engineering and installing complete comfort systems for homeowners and commercial property owners. Gary, his sons and a team of trained professionals bring over 50 years of experience in the HVAC industry, offering unmatched quality, exceptional customer service and family-like treatment to all our customers.
"Great fast and professional"
Lyndon A on November 2024
Family Owned & Operated, Grove Heating and Cooling, Inc. specializes in designing, engineering and installing complete comfort systems for homeowners and commercial property owners. Gary, his sons and a team of trained professionals bring over 50 years of experience in the HVAC industry, offering unmatched quality, exceptional customer service and family-like treatment to all our customers.
"Great fast and professional"
Lyndon A on November 2024
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.
"Furnace wasn’t working"
Deborah H on November 2024
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.
"Furnace wasn’t working"
Deborah H on November 2024
Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!
"Dennys and his team replaced our front door and accompanying trim/frame, storm door, painted a shutter, and completed some additional tasks not requested initially. The quality of work was excellent across the board. Dennys' expertise in these project areas was clear not only by the quality of work but also by his clarifying questions and thoughtful suggestions on how certain approaches might work better than others. Working with Dennys was a pleasure. He was professional, polite, courteous, and very responsive. We were extremely pleased with the outcome of the projects, would recommend him to others, and look forward to him doing more work for us."
August B on November 2024
Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!
"Dennys and his team replaced our front door and accompanying trim/frame, storm door, painted a shutter, and completed some additional tasks not requested initially. The quality of work was excellent across the board. Dennys' expertise in these project areas was clear not only by the quality of work but also by his clarifying questions and thoughtful suggestions on how certain approaches might work better than others. Working with Dennys was a pleasure. He was professional, polite, courteous, and very responsive. We were extremely pleased with the outcome of the projects, would recommend him to others, and look forward to him doing more work for us."
August B on November 2024
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
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
JDL HVAC & Plumbing Services LLC offers a wide range of services to meet your HVAC & Plumbing needs. With offices in both Maryland & Virginia, we serve both residential and commercial clients and specialize in offering a variety of money-saving solutions. Combined with our use of the highest quality parts and equipment and our dedication to delivering exceptional service, we have become known as the HVAC & Plumbing contractor of choice in the DMV area! The mission of JDL is to provide honest, reliable service that stands head and shoulders above the rest. We continually strive to exceed expectations by ensuring that each client receives the very best service from our friendly and knowledgeable HVAC/Plumbing service technicians. No matter what you need you can rely on JDL to provide an unparalleled knowledge, experience and expertise!
"They did a good job"
Richard T on June 2024
JDL HVAC & Plumbing Services LLC offers a wide range of services to meet your HVAC & Plumbing needs. With offices in both Maryland & Virginia, we serve both residential and commercial clients and specialize in offering a variety of money-saving solutions. Combined with our use of the highest quality parts and equipment and our dedication to delivering exceptional service, we have become known as the HVAC & Plumbing contractor of choice in the DMV area! The mission of JDL is to provide honest, reliable service that stands head and shoulders above the rest. We continually strive to exceed expectations by ensuring that each client receives the very best service from our friendly and knowledgeable HVAC/Plumbing service technicians. No matter what you need you can rely on JDL to provide an unparalleled knowledge, experience and expertise!
"They did a good job"
Richard T on June 2024
Thank you for considering Grove and Son! We are a family owned full- service HVAC and Plumbing business and have been serving the community for years. To ensure excellent results, our technicians are equipped with the tools and products to perform inspections and repairs on the spot. Providing great service with reliability is our passion and pride. We would love to have the opportunity to assist you with you next project. Give us a call today for all of your Heating, Cooling and Plumbing needs!
"I have used Grove for many years, and even had them replace on of my failing units. Within the past 18 months, our secondary unit started having problems and Grove came out multiple times to service the unit, explaining that it was losing refrigerant and needed to be replaced. They were always very quick to provide an estimate to replace the unit after charging it. Before replacing the unit we had a different vendor come to give a second opinion, to ensure we were informed and I am so happy that we did. We found that the unit wasn’t only running out of refrigerant, but that it was massively overcharged and that the overpressure safeties had been defeated. I’m not sure if Grove was simply negligent or if they were trying to trick us into paying for a replacement, but I can say that I won’t be using them again. The unit they replaced for us is already dead, and they are quoting us an additional $2k to repair it, putting the total cost for the unit at nearly $10k. All said I have probably paid Grove thousands of dollars and it’s impossible to tell what of that was legitimate and what of it was them running up the bill. I can tell you that at one point they made an emergency visit late at night, spent 15 minutes looking at, and cleaning my compressors, charged me $1000, and then proceeded to text me pictures of them on vacation, presumably enjoying spending the money I had paid them. While I really like Grove, I would suggest you get a second opinion regarding whatever they tell you and that you check your bill very thoroughly."
Michael G on November 2023
Thank you for considering Grove and Son! We are a family owned full- service HVAC and Plumbing business and have been serving the community for years. To ensure excellent results, our technicians are equipped with the tools and products to perform inspections and repairs on the spot. Providing great service with reliability is our passion and pride. We would love to have the opportunity to assist you with you next project. Give us a call today for all of your Heating, Cooling and Plumbing needs!
"I have used Grove for many years, and even had them replace on of my failing units. Within the past 18 months, our secondary unit started having problems and Grove came out multiple times to service the unit, explaining that it was losing refrigerant and needed to be replaced. They were always very quick to provide an estimate to replace the unit after charging it. Before replacing the unit we had a different vendor come to give a second opinion, to ensure we were informed and I am so happy that we did. We found that the unit wasn’t only running out of refrigerant, but that it was massively overcharged and that the overpressure safeties had been defeated. I’m not sure if Grove was simply negligent or if they were trying to trick us into paying for a replacement, but I can say that I won’t be using them again. The unit they replaced for us is already dead, and they are quoting us an additional $2k to repair it, putting the total cost for the unit at nearly $10k. All said I have probably paid Grove thousands of dollars and it’s impossible to tell what of that was legitimate and what of it was them running up the bill. I can tell you that at one point they made an emergency visit late at night, spent 15 minutes looking at, and cleaning my compressors, charged me $1000, and then proceeded to text me pictures of them on vacation, presumably enjoying spending the money I had paid them. While I really like Grove, I would suggest you get a second opinion regarding whatever they tell you and that you check your bill very thoroughly."
Michael G on November 2023
McCrea is a family owned business that has served our area since 1936. Financing and rebates are available on Trane systems installed by McCrea. Resistrictions apply and these are limited time offers call for details. "Its hard to stop a Trane"
"I had an absolutely terrible experience with McRae Air Conditioning and Heating. I purchased a home equipped with their HVAC system, and within just five months, the heat stopped working—right in the middle of winter during a snowstorm. My home was freezing at 50°F, so I called for service, which should have been covered under warranty. I scheduled an appointment, and the technician, after being several hours late, went to the wrong address, left a sticker on someone else’s door, and left without even trying to contact me. When I called back, the customer service rep was rude, dismissive, and completely unhelpful. He initially told me the technician was on the way and just 12 miles away—but after another hour of waiting, I called again only to be told that the technician had already “been to my house 2 hours ago” (the wrong one) and left a note. If the rep actually wanted to help, he would have told me this during my first call instead of wasting my time and leaving me sitting in the cold. Not once did the technician call me to confirm the address or check in after knocking on the wrong door. When I expressed my frustration, the rep rudely dismissed my concerns, saying, “Well, I had nothing to do with that,” and then interrupted me with, “Do you still want to rebook or not?” as if I had to stop talking or risk not getting another appointment. This was an emergency call in the middle of winter, and McRae handled it in the most unprofessional, careless, and disappointing way possible. If you’re considering using them for HVAC service, do yourself a favor and go with another company. I’ll update this review after the (hopefully successful) service call and speaking to the manager who was not there at 4 pm on a Wednesday."
Terrelle W on February 2025
McCrea is a family owned business that has served our area since 1936. Financing and rebates are available on Trane systems installed by McCrea. Resistrictions apply and these are limited time offers call for details. "Its hard to stop a Trane"
"I had an absolutely terrible experience with McRae Air Conditioning and Heating. I purchased a home equipped with their HVAC system, and within just five months, the heat stopped working—right in the middle of winter during a snowstorm. My home was freezing at 50°F, so I called for service, which should have been covered under warranty. I scheduled an appointment, and the technician, after being several hours late, went to the wrong address, left a sticker on someone else’s door, and left without even trying to contact me. When I called back, the customer service rep was rude, dismissive, and completely unhelpful. He initially told me the technician was on the way and just 12 miles away—but after another hour of waiting, I called again only to be told that the technician had already “been to my house 2 hours ago” (the wrong one) and left a note. If the rep actually wanted to help, he would have told me this during my first call instead of wasting my time and leaving me sitting in the cold. Not once did the technician call me to confirm the address or check in after knocking on the wrong door. When I expressed my frustration, the rep rudely dismissed my concerns, saying, “Well, I had nothing to do with that,” and then interrupted me with, “Do you still want to rebook or not?” as if I had to stop talking or risk not getting another appointment. This was an emergency call in the middle of winter, and McRae handled it in the most unprofessional, careless, and disappointing way possible. If you’re considering using them for HVAC service, do yourself a favor and go with another company. I’ll update this review after the (hopefully successful) service call and speaking to the manager who was not there at 4 pm on a Wednesday."
Terrelle W on February 2025
An evaporator coil is the chilled indoor coil that pulls heat out of your home’s air. As warm air passes over it, the refrigerant inside absorbs the heat and sends it outdoors, leaving cooler air behind. When the coil wears out or leaks, you’ll notice weaker cooling, higher bills, or even small puddles of refrigerant around the unit.
You’ll know an evaporator coil is on its last legs when airflow turns weak, the air feels lukewarm, or your energy bill suddenly spikes. Short cycling, hissing sounds, and visible refrigerant leaks are other red flags. Acting quickly keeps the repair bill smaller and prevents a full system breakdown, so call an HVAC pro as soon as you spot these issues.
With routine filter changes and a yearly tune-up, most evaporator coils last 10 to 20 years. Heavy summer use, skipped maintenance, or corrosive indoor air can shave years off that span, while a lightly used, well-kept system can reach the upper end. Staying on top of simple upkeep is the best way to protect the coil’s lifespan.