The Best in Upper Marlboro HVAC Service
HVAC in Upper Marlboro is Made Easy with Belair
If you have chosen to settle in a beautiful Upper Marlboro home, you already know just how many wonderful amenities this area offers. Few places offer such easy access to great cities like Washington D.C. and Baltimore while offering a comfortable, enjoyable quality of life. Upper Marlboro is a special place, and that’s why so many of your friends and neighbors have also decided to call it home.
Belair has been fortunate to serve many customers in Upper Marlboro over the years. We are always happy to take calls from the Prince George's County area, so don’t hesitate to reach out with your plumbing, generator, or HVAC problem.
Our Team in Upper Marlboro is Ready to Respond to Your Needs
We understand you don’t have time to waste getting your HVAC system working correctly. Whether it’s some relief from the hot summer days or warming on a cold winter night, good HVAC performance in your Upper Marlboro home should never be taken for granted.
What will you get when you decide to call Belair for furnace or generator repair? It starts with timely service and fair pricing, but that’s far from all. You will also appreciate the friendly and understanding nature of our technicians, who are always happy to answer your questions and explain the work that needs to be done. No customer or job is ever taken for granted.
This is a big part of why we’ve become the contractor of choice for so many people throughout the region for generations.
Explore Our Many Service Options
The Belair team can do it all, as seen in the list of services below. This includes not only standard HVAC service but fireplace, generator, and plumbing services as well.
If you are a homeowner in Upper Marlboro and want a versatile, trustworthy partner for these kinds of jobs, you can’t do any better than Belair.
Heating
Have you noticed that the winter nights in your Upper Marlboro home are a little colder than they used to be? Does your Mitsubishi furnace smell like smoke? Your furnace could need some maintenance or need to be replaced with a new, more efficient unit. If your HVAC system is a heat pump, we can also help. Call Belair Engineering and Service Company, Inc. at 888.823.5247 to discuss your heating service needs and get the help you need to keep you warm all winter.
Air Conditioning
There is no hiding from the summer heat and humidity in Upper Marlboro. When a heat wave settles in, the only way to find some relief is to escape inside an air-conditioned space. Make sure your AC is working in tip-top shape before summer gets here by connecting with the Belair team. We can repair, replace, and install residential air conditioning in almost any home!
Plumbing
Are there plumbing problems in your Upper Marlboro home that must be addressed? Whether it’s the installation of a new water heater, a broken pipe or clogged drain, or anything else related to your plumbing system, you can trust our Upper Marlboro plumbers to do the job correctly.
Generators
Stop those powerful Atlantic storms from disrupting your life in Upper Marlboro. With a backup generator installed by Belair, you will automatically be switched to your alternative power source should the power go out. If you need someone to repair your existing standby power system, we can help with that too.
Fireplaces
Adding a fireplace in Upper Marlboro is about more than the heat that this appliance will provide. With a gas fireplace installed in your home, you’ll have a natural gathering place that is certain to be your family’s favorite spot to hang out and connect throughout the cold winter months.
Air Quality
Everyone deserves to breathe clean air in their home. If it seems like the air in your Upper Marlboro house is dustier or dirtier than it should be, call Belair Engineering and Service Company, Inc. at 888.823.5247 today to learn more about our air quality services and how we can solve this frustrating problem.
Why Pick Belair? Key Points to Consider
If you spend too much time looking at HVAC options in Upper Marlboro, you will start to feel like all the choices are similar. At Belair Engineering and Service Company, Inc., these are a few ways we stand out from the crowd:
- A proven record of performance: With more than 64 years of experience in the industry, you will know that you are in good hands from the start. Just ask your friends and neighbors!
- Transparent Pricing: We understand that everyone is on a budget, and no one wants to spend more than necessary for quality HVAC service. Our pricing is always honest and competitive, so you know exactly what you’ll pay when the job is done. We also offer financing options to help you find a payment option that works for you.
- Commitment to Safety: When you invite Belair’s technicians into your home, you can be assured that they are trained in the newest safety measures and have been screened to ensure you are working with honorable experts in Upper Marlboro. We also handle all permits to ensure legal compliance.
Professional HVAC Service in Upper Marlboro is a Phone Call Away
With Belair on the job, you can be sure your HVAC system will be back up and running quickly. Or, if your system is working but you’d like to upgrade to new equipment for better performance and efficiency, we can also help. The same is true whether you need generator or plumbing service in Upper Marlboro. We are committed to serving all your comfort needs.
Recent Jobs and Reviews in Upper Marlboro, MD
Upper Marlboro, MD at a glance
Belair Engineering and Service Company has completed 25 jobs in Upper Marlboro, MD in September 2026.
The 20 customer reviews shown here average 5.0 out of 5.
The most recent job was on September 23, 2026.
Belair Engineering and Service Company has completed 1,162 jobs in Upper Marlboro, MD in the last 12 months. The first job there was in October 2013.
Reviews
Anthony is a consummate professional. He arrived on time, quickly identified the problem and explained the solution clearly. Thank you for the outstanding service, Anthony and Belair Engineering.
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Great device as always. The technician was awesome!
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He was informative. On time. Knowledgeable
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Tech was GREAT!
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Abe is no stranger to my home, he has provided service to us via Belair Engineering on previous occasions. Abe always calls ahead with an anticipated arrival time. He is both friendly and provides professional service. I like how he explains what service steps he will be taking, and afterward, he provides clear and documented updates. When appropriate, Abe offers sound recommendations.
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Great service appointment. It would be helpful if the report/assessment form is consistently completed to assist with comparing performance since the previous visit.
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Great service and outstanding customer service.
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Abe A. Did a great job today. Arrived early and was very efficient.
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Mark was professional and very helpful.
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Abe showed up on time and was able to perform the inspection and replacement of a part in a timely manner. The price was fair and signed up for a service contract to inspect the unit twice a year.
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Excellent
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Good Service.
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My technician, Mark, called me that he was on the way. He promptly arrived, introduced himself and placed protective shoe covering before entering. Throughout the service performed, he demonstrated knowledge, care for my HVAC system, and was very friendly. I found Mark to be an outstanding representative of Belair Engineering.
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Very thorough and professional.
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Julius is a kind and very caring human being. He is excellent at his job and has wonderful people skills as well. I was very lucky to have this kind man take care of the leak under my sink today. I highly recommend this company and this kind man to fix any plumbing leak for any client. He is an awesome and exceptional asset as a skilled plumber to your company. Thank you, Julius, for your kindness and compassion given so freely to me today. I needed that so very much. No more leak. Yay. 5 STARS FOR EVERYTHING. Thank you.
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Job Locations
Goodman outdoor unit AC straight AC installation service repair call in upper Marlboro, MD 20774
Goodman air-conditioning system and heating service referred call in upper Marlboro, MD 20774
Carrier air-conditioning system service repair call in Uppermoor, MD 20774
Gas fireplace service and repair
Carrier Comfortmaker AC outdoor unit air conditioning system service repair call in Upper Marlboro MD
System
Carrier furnace repair
Carrier furnace repair
Trane
Goodman Airtemp heat pump heating & AC system service repair call in Upper Marlboro MD
Completed the installation of a new Generac Guardian Series standby generator & automatic transfer switch. Checked all electrical & fuel connections, tested generator operation & automatic transfer & verified the system is ready to provide automatic backup electrical power when it’s needed most.
30008 "Warren G.")
I conducted a comprehensive repair service call on a 2-ton Goodman Amana heat pump system. The process began with the removal & replacement of the refrigerant filter drier. I then evacuated the system to remove any residual refrigerant & contaminants. After ensuring the system was properly evacuated, I refilled it with the appropriate type & amount of refrigerant. I checked the refrigerant pressures to confirm they were within the manufacturer's specifications. Following this, I tested the complete operating cycle of the heat pump, ensuring both heating & AC modes functioned correctly. Finally, I verified the overall system performance, confirming that the heat pump was operating efficiently & effectively.
Carrier 80 Plus Furnace Service \Repair
80 Plus Goodman Furnace Service /Repair
Performed a repair service call on a Goodman Daikin air conditioning system. Diagnosed a weak run capacitor & replaced it. Checked refrigerant pressures, electrical components & condensate drainage. Tested the complete cooling cycle & verified proper system operation & cooling performance.
I conducted a comprehensive maintenance & repair service for a Carrier Infinity 8000 gas furnace. I meticulously cleaned the flame sensor to ensure optimal performance. The burners & ignition system were thoroughly inspected for any signs of wear or malfunction. A new furnace filter was installed to enhance air quality & efficiency. I then tested the complete heating cycle, verifying proper ignition, consistent airflow & overall furnace operation. Each component was checked to guarantee the natural gas furnace operates safely & efficiently.
AO Smith natural gas hot water heater 50 gallon install installation service repair call in upper Marlboro, MD 20772
Carrier Comfortmaker heat pump air handler heating & AC system service repair call in Upper Marlboro MD
Ac repair
Rheem Furnace
Goodman Airtemp heat pump furnace repair in Upper Marlboro MD
Heating system repair
York Diamond 80 gas furnace heating system repair service call.
Comfortmaker AirEase heat pump furnace heating & AC system replacement installation Upper Marlboro Maryland 20774
