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Thermostat installers and replacers in Upper Marlboro

Stiffler's Electric Service
7802 Marioak
4.96(
98
)
Approved Pro
Stiffler's Electric Service
7802 Marioak
4.96(
98
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
23 years of experience

Since 1979, Stiffler's Electric Service has been providing good quality work. Call on us � we get the work done. Our professional staff will make sure that all of your electrical needs are met with the best quality customer service and excellence in electrical craftsmanship. Call David today!

"David Stiffler was awesome. Found the source of the problem, fixed it in a timely manner, was reasonably priced, and just an overall great guy."

Tiffany A on May 2024

Since 1979, Stiffler's Electric Service has been providing good quality work. Call on us � we get the work done. Our professional staff will make sure that all of your electrical needs are met with the best quality customer service and excellence in electrical craftsmanship. Call David today!

"David Stiffler was awesome. Found the source of the problem, fixed it in a timely manner, was reasonably priced, and just an overall great guy."

Tiffany A on May 2024


Hunt Plumbing, Heating and Air Conditioning, LLC
27175 Cox Drive
4.75(
715
)
Approved Pro
Hunt Plumbing, Heating and Air Conditioning, LLC
27175 Cox Drive
4.75(
715
)
Approved Pro
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
22 local quotes requested

Hunt Plumbing, Heating and Air Conditioning, LLC prides its business on quality and outstanding customer service. Our team will prove we have what it takes to get the job done right the first time. ( Free estimates provided on replacement HVAC equipment only. Diagnostic fees charged when diagnosing equipment failures. Estimates for repairs will be quoted once diagnostic is completed. )

"They were awesome! Prompt, courteous, knowledgeable, fair pricing and just overall great!!!"

Virginia P on July 2025

Hunt Plumbing, Heating and Air Conditioning, LLC prides its business on quality and outstanding customer service. Our team will prove we have what it takes to get the job done right the first time. ( Free estimates provided on replacement HVAC equipment only. Diagnostic fees charged when diagnosing equipment failures. Estimates for repairs will be quoted once diagnostic is completed. )

"They were awesome! Prompt, courteous, knowledgeable, fair pricing and just overall great!!!"

Virginia P on July 2025


Avatar for MARYLAND HEATING & COOLING
MARYLAND HEATING & COOLING
4943 Roundhill Rd
4.94(
89
)
Approved Pro
MARYLAND HEATING & COOLING
4943 Roundhill Rd
4.94(
89
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
454 local quotes requested

Maryland Heating & Cooling is a family owned & operated HVAC business located in Howard County. We provide service and replacement of HVAC systems & install IAQ products such as air purifiers, air cleaners and humidifiers. Emergency service is available 7- days a week with no overtime or weekend rate Our staff is well skilled and our licensed service technicians are top notch, therefore providing you with outstanding 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. Call us today. 410-465-0081

"Good, and everything got done in one day."

Gil C on October 2024

Maryland Heating & Cooling is a family owned & operated HVAC business located in Howard County. We provide service and replacement of HVAC systems & install IAQ products such as air purifiers, air cleaners and humidifiers. Emergency service is available 7- days a week with no overtime or weekend rate Our staff is well skilled and our licensed service technicians are top notch, therefore providing you with outstanding 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. Call us today. 410-465-0081

"Good, and everything got done in one day."

Gil C on October 2024


BlueStar Air Mechanical Inc.
11092 Lee Hwy
4.85(
26
)
Approved Pro
BlueStar Air Mechanical Inc.
11092 Lee Hwy
4.85(
26
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
820 local quotes requested

BlueStar Air Mechanical is a call away for your repair, maintenance and installation needs. We specialize in fixing and tuning up cooling, heating and plumbing systems for both residential homes and commercial establishments.

"I contacted Bluestar Air Mechanical for a second opinion after an appointment with Air One. I have a Carrier HVAC system, and the Air One technician recommended a complete system replacement, claiming the blower was bad, the furnace control board needed replacing, and that there were other issues. Since replacing the HVAC is a big investment, I wanted to get a second opinion. It was only after comparing the service from Bluestar that I realized Air One may have been pushing for a new system sale or lacked the expertise to properly diagnose and repair the actual problems. Isaac, the technician from Bluestar, spent about an hour thoroughly diagnosing and fixing the issues. He found burnt wiring in the furnace and discovered that the wrong capacitor had been incorrectly installed in the AC. Isaac replaced the burnt wiring in the furnace and the capacitor in the AC. After these repairs, my Carrier system was back up and running—without the need for a costly replacement. Bluestar, and Isaac in particular, demonstrated professionalism, expertise, and honesty. They focused on resolving the actual issues instead of pushing for an unnecessary system replacement. I highly recommend Bluestar for their reliable service and Isaac’s thorough and knowledgeable work."

James C on October 2024

BlueStar Air Mechanical is a call away for your repair, maintenance and installation needs. We specialize in fixing and tuning up cooling, heating and plumbing systems for both residential homes and commercial establishments.

"I contacted Bluestar Air Mechanical for a second opinion after an appointment with Air One. I have a Carrier HVAC system, and the Air One technician recommended a complete system replacement, claiming the blower was bad, the furnace control board needed replacing, and that there were other issues. Since replacing the HVAC is a big investment, I wanted to get a second opinion. It was only after comparing the service from Bluestar that I realized Air One may have been pushing for a new system sale or lacked the expertise to properly diagnose and repair the actual problems. Isaac, the technician from Bluestar, spent about an hour thoroughly diagnosing and fixing the issues. He found burnt wiring in the furnace and discovered that the wrong capacitor had been incorrectly installed in the AC. Isaac replaced the burnt wiring in the furnace and the capacitor in the AC. After these repairs, my Carrier system was back up and running—without the need for a costly replacement. Bluestar, and Isaac in particular, demonstrated professionalism, expertise, and honesty. They focused on resolving the actual issues instead of pushing for an unnecessary system replacement. I highly recommend Bluestar for their reliable service and Isaac’s thorough and knowledgeable work."

James C on October 2024


Avatar for Glenmont Heating & A/C
Glenmont Heating & A/C
2267 Lewis Ave
4.67(
64
)
Approved Pro
Glenmont Heating & A/C
2267 Lewis Ave
4.67(
64
)
Approved Pro
Customers say: Super punctual
1098 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.

"Summary: Company charged me $1000+ for 2 separate service visits that did not fix my AC unit; technicians and Operations Manager are not truthful about work done; Operatiins Mngr will tell you find another HVAC company when you express dissatisfaction ….I contacted Glenmont Heating and Air Conditioning since my AC unit was not dispensing any cold air. Thermometer was set to 68° however the unit temperature was reading 77-80° (note this was the week of extreme heat wave). On 21Jun2024: Glenmont technician Roderick performed a service call. I spoke to him via phone after the call to which he told me he added refrigerant to the system. This did not fix the issue and the unit continued to not dispense cold air with the thermometer reaching 77-80° despite being set to 68°. I was charged $119 for this work. Operating Manager Tim Schindle is contradicting what the tech said and claims Roderick did not add any refrigerant. I again called Glenmont HVAC for a second service appointment. This technician claimed the coil needed to be cleaned. The second technician (Eric) then falsely reported on his report the unit temperature dropped to 68° when he left when I have photographic evidence showing the temperature in the high 70s. I waited about 24hrs as instructed for the thermostat to drop and it never did and the unit continued to not dispense cool air. I then called a supervisor (don’t recall name) who essentially told me due to the extreme temperatures everyone was experiencing HVAC issues and did not recommend any follow up service. I then had several back/forth emails with Operations manger Tim Schindler to notify him after 2 separate service visits, my air conditioning was not fixed. In the end he told me, and I quote “my system is old…we don’t know the maintenance history…it is best for both of us to find another HVAC company. He did however bill me $964 for the second service visit, which did not fix my issue. I ended up having to call another HVAC company who diagnosed the problem as a compression failure/ replaced the unit and now have cold air blowing. The second HVAC company did not understand why the 2nd technician from Glenmont Heating/Air Conditioning was changing coils and said this was not necessary to do. Second HVAC company showed me the reading of the compressor unit to which I could see no charge was registering, essentially the compressor was no longer working which was the root cause of my issue. In conclusion, I’m disappointed with Glenmont HVAC and feel they sent incompetent technicians who falsified their work. When I complained to the company and expressed my disappointment with their work (or lack there of) they told me to seek other HVAC company without fixing my AC unit but charged me $1000+. Poor business acumen and highly unethical company that needs to be held accountable for cheating customers and not performing quality work."

T C on August 2024

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.

"Summary: Company charged me $1000+ for 2 separate service visits that did not fix my AC unit; technicians and Operations Manager are not truthful about work done; Operatiins Mngr will tell you find another HVAC company when you express dissatisfaction ….I contacted Glenmont Heating and Air Conditioning since my AC unit was not dispensing any cold air. Thermometer was set to 68° however the unit temperature was reading 77-80° (note this was the week of extreme heat wave). On 21Jun2024: Glenmont technician Roderick performed a service call. I spoke to him via phone after the call to which he told me he added refrigerant to the system. This did not fix the issue and the unit continued to not dispense cold air with the thermometer reaching 77-80° despite being set to 68°. I was charged $119 for this work. Operating Manager Tim Schindle is contradicting what the tech said and claims Roderick did not add any refrigerant. I again called Glenmont HVAC for a second service appointment. This technician claimed the coil needed to be cleaned. The second technician (Eric) then falsely reported on his report the unit temperature dropped to 68° when he left when I have photographic evidence showing the temperature in the high 70s. I waited about 24hrs as instructed for the thermostat to drop and it never did and the unit continued to not dispense cool air. I then called a supervisor (don’t recall name) who essentially told me due to the extreme temperatures everyone was experiencing HVAC issues and did not recommend any follow up service. I then had several back/forth emails with Operations manger Tim Schindler to notify him after 2 separate service visits, my air conditioning was not fixed. In the end he told me, and I quote “my system is old…we don’t know the maintenance history…it is best for both of us to find another HVAC company. He did however bill me $964 for the second service visit, which did not fix my issue. I ended up having to call another HVAC company who diagnosed the problem as a compression failure/ replaced the unit and now have cold air blowing. The second HVAC company did not understand why the 2nd technician from Glenmont Heating/Air Conditioning was changing coils and said this was not necessary to do. Second HVAC company showed me the reading of the compressor unit to which I could see no charge was registering, essentially the compressor was no longer working which was the root cause of my issue. In conclusion, I’m disappointed with Glenmont HVAC and feel they sent incompetent technicians who falsified their work. When I complained to the company and expressed my disappointment with their work (or lack there of) they told me to seek other HVAC company without fixing my AC unit but charged me $1000+. Poor business acumen and highly unethical company that needs to be held accountable for cheating customers and not performing quality work."

T C on August 2024


Avatar for JDL HVAC & Plumbing Services
JDL HVAC & Plumbing Services
14300 Cherry Lane
4.50(
113
)
Approved Pro
JDL HVAC & Plumbing Services
14300 Cherry Lane
4.50(
113
)
Approved Pro
Customers say: Super punctual
3906 local quotes requested
13 years of experience

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


Avatar for Perdue Heating & Air LLC
Perdue Heating & Air LLC
Member
4.92(
65
)
Approved Pro
Perdue Heating & Air LLC
Member
4.92(
65
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
481 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

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


Avatar for HPC Services
HPC Services
14 Iron Gate Drive
5.00(
14
)
Approved Pro
HPC Services
14 Iron Gate Drive
5.00(
14
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4383 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

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


Avatar for Grove Heating and Cooling Inc
Grove Heating and Cooling Inc
2142 Priest Bridge Ct
4.76(
147
)
Approved Pro
Grove Heating and Cooling Inc
2142 Priest Bridge Ct
4.76(
147
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
821 local quotes requested

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


Avatar for HVAC Superior Solutions Inc
HVAC Superior Solutions Inc
KILMER STREET
5.00(
5
)
Approved Pro
HVAC Superior Solutions Inc
KILMER STREET
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2978 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

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Showing 1-10 of 919
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