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HVAC Contractor in Chestertown, MD

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Trusted Heating & Cooling Service

When Chestertown homeowners need a dependable HVAC contractor, Moon Air has been the answer since 1985. We serve the Kent County seat and the surrounding communities with full-service heating, air conditioning, indoor air quality, and ductwork services—delivered by certified technicians who know this part of the Eastern Shore well.

Chestertown is a vibrant community with a mix of historic homes, newer neighborhoods, and everything in between. That mix means a wide range of HVAC equipment, duct configurations, and comfort challenges. Moon Air's technicians are experienced across all of it—from older oil-to-gas conversions in historic district homes to high-efficiency system installations in recently built neighborhoods near Washington College.

Whatever your home needs, we'll give you an honest assessment and the kind of service that has kept Eastern Shore families calling us back for more than four decades.

Contact the Moon Man at 410-392-9350 or online today for out-of-this-world service at down-to-earth prices.

Heating Services in Chestertown, MD

Kent County winters demand a reliable heating system. Moon Air provides complete heating repair, maintenance, and installation services for homeowners throughout Chestertown. We work on all makes and models — furnaces, heat pumps, boilers, and everything in between. If your system isn't performing the way it should, we'll find out why.

Our heating maintenance tune-ups are among the most popular services we provide in the Chestertown area. A properly maintained heating system runs more efficiently, lasts longer, and is far less likely to fail on the coldest night of the year. We check every critical component—heat exchanger, igniter, blower motor, filters, and more—so you're ready for winter before winter arrives.

When replacement is the right move, we install Amana heating systems—a brand we recommend for its combination of efficiency, reliability, and long-term value. Most installations are completed in a single day.

Air Conditioning Services in Chestertown, MD

Summers on Maryland's Eastern Shore are long, hot, and humid — and Chestertown is no exception. When the heat and humidity peak in July and August, your air conditioning system needs to be ready. Moon Air provides fast, professional AC services for Chestertown homeowners throughout the cooling season.

We provide seasonal maintenance tune-ups to keep your system running at peak efficiency, fast repairs when something breaks down, and full system replacements when the time comes. We install Amana central air systems—our top pick for whole-home cooling—as well as Daikin ductless mini-split systems for spaces that your central system doesn't reach effectively.

Daikin mini splits are a particularly good fit for the older homes in Chestertown's historic district, where adding or extending ductwork isn't practical. They provide precise, efficient cooling and heating for individual rooms or zones — without the major construction that traditional ductwork would require.

Indoor Air Quality Services in Chestertown, MD

Many Chestertown homeowners don't realize that indoor air can contain significantly higher concentrations of pollutants than outdoor air — especially in well-sealed homes. Dust mites, pet dander, mold spores, bacteria, and chemical vapors can accumulate inside and recirculate through your HVAC system with every cycle.

For families dealing with allergies, asthma, or other respiratory sensitivities, this matters. Moon Air offers a full range of indoor air quality solutions designed to address the problem at its source, not just filter out symptoms.

Why Chestertown Homeowners Choose Moon Air

We've been serving Chestertown and the surrounding Kent County community for over 40 years. Our reputation is built on doing right by the homeowner—not the easiest repair or the highest ticket. When we come to your home, we treat it like it's our own.

  • Licensed and certified HVAC technicians
  • Honest, upfront pricing — you know the cost before we start
  • All makes and models serviced — no brand restrictions
  • Free estimates on new system replacements
  • Free second opinions on replacement recommendations
  • Flexible financing through GreenSky — available on repairs and new systems
  • 24/7 emergency heating and cooling service

Ready to Schedule? Call Your Chestertown, MD HVAC Contractor

Moon Air is ready to help with whatever your heating or cooling system needs. We serve Chestertown, Rock Hall, Galena, Millington, Betterton, and communities throughout Kent County and the broader Eastern Shore and tri-state region.

Contact the Moon Man at 410-392-9350 or online today for out-of-this-world service at down-to-earth prices.

Recent Jobs and Reviews in Chestertown, MD

Rated 4.9 out of 5 stars based on 92 customer reviews

Customers say: The overall sentiment across these reviews is overwhelmingly positive, reflecting high levels of customer satisfaction and appreciation. Customers consistently express happiness with the quality of work performed, emphasizing thoroughness, professionalism, and expertise demonstrated by the service technicians. A recurring theme is the value placed on clear communication, with multiple reviewers highlighting how technicians patiently answered questions and provided detailed explanations of the services and systems. The courteous and professional demeanor of the staff is frequently praised, contributing to a strong sense of trust and confidence in the company. Customers also appreciate the cleanliness and efficiency of the work, noting that technicians completed tasks without creating disruption. The ability to diagnose and resolve issues quickly, even during challenging circumstances, is another positive trend that emerges. Overall, the reviews convey a tone of genuine satisfaction and strong recommendation, with customers expressing confidence in the company's reliability and the quality of service they received.

Our Local Reviews by City

Job Locations and Reviews

Review
Howard was kind, courteous, and helpful. He went above and beyond to diagnose a difficult problem. Please expedite parts…it is HOT!😁
Jeff - Chestertown, MD 21620
Howard M.
Howard M. Checked in
A thorough inspection of the HVAC system revealed a fault in the main electronic control circuit, traced to an improperly seated control wire at the refrigerant directional valve assembly. Additionally, the voltage distribution component was found to be pitted and sticking, disrupting normal system operation. The Rinnai tankless water heater underwent a Silver Club Rejuvenation Cleaning, with all electronic control circuits, wiring, and electrical connections inspected and found to be operating correctly. Further diagnostics on the ClimateMaster geothermal system indicated necessary repairs, which will be completed during a return visit with the required parts. Recommendations include repairing or replacing the main electronic control component, fixing the wiring connection at the refrigerant directional valve, and replacing the defective voltage distribution component. The system is left in its current state pending these repairs, with the tankless water heater functioning properly an
Chestertown, MD 21620
Anthony C.
Anthony C. Checked in
Upon arrival, I conducted a thorough inspection of the HVAC system. I discovered that one of the units was set to heat mode, which inadvertently prevented the other two units from functioning in cooling mode. I explained the issue to the customer, ensuring they understood the situation. Additionally, I examined the air filters, which were in good condition and did not require replacement. I also took the time to explain the operation of the thermostats, including the various settings and how to adjust them for optimal performance. The customer appreciated the detailed explanation and felt confident in managing the system moving forward.
Chestertown, MD 21620
Responded to callback for HVAC system performance concerns. Upon inspection in attic space, discovered severely deteriorated flexible aluminum ductwork with extensive tears and shredding of outer metallic layer, exposing inner insulation material. Documented damaged sections showing compromised air distribution system integrity. Additional HVAC components including air handler unit, properly insulated supply ducts, and electrical wiring inspected and photographed for customer records and recommended repairs.
Responded to callback for HVAC system performance concerns. Upon inspection in attic space, discovered severely deteriorated flexible aluminum ductwork with extensive tears and shredding of outer metallic layer, exposing inner insulation material. Documented damaged sections showing compromised air distribution system integrity. Additional HVAC components including air handler unit, properly insulated supply ducts, and electrical wiring inspected and photographed for customer records and recommended repairs.
Michael M.
Michael M. Checked in
Responded to callback for HVAC system performance concerns. Upon inspection in attic space, discovered severely deteriorated flexible aluminum ductwork with extensive tears and shredding of outer metallic layer, exposing inner insulation material. Documented damaged sections showing compromised air distribution system integrity. Additional HVAC components including air handler unit, properly insulated supply ducts, and electrical wiring inspected and photographed for customer records and recommended repairs.
Chestertown, MD 21620
Review
Matt was very good thank him for us have a good day
Rose - Chestertown, MD 21620
Completed a comprehensive water removal system repair. Evacuated and recovered the R-410A refrigerant, flushed the line set, and removed the failed condensate collection/drain assembly. Accessed the drain line by carefully cutting and removing a section of drywall. Installed a new condensate assembly, flushed the drain line, and verified it was clear and leak-free. Conducted a triple evacuation, achieving a 500 micron vacuum, and recharged with new R-410A refrigerant. Tested the system, ensuring proper operation and performance.
Completed a comprehensive water removal system repair. Evacuated and recovered the R-410A refrigerant, flushed the line set, and removed the failed condensate collection/drain assembly. Accessed the drain line by carefully cutting and removing a section of drywall. Installed a new condensate assembly, flushed the drain line, and verified it was clear and leak-free. Conducted a triple evacuation, achieving a 500 micron vacuum, and recharged with new R-410A refrigerant. Tested the system, ensuring proper operation and performance.
Howard M.
Howard M. Checked in
Completed a comprehensive water removal system repair. Evacuated and recovered the R-410A refrigerant, flushed the line set, and removed the failed condensate collection/drain assembly. Accessed the drain line by carefully cutting and removing a section of drywall. Installed a new condensate assembly, flushed the drain line, and verified it was clear and leak-free. Conducted a triple evacuation, achieving a 500 micron vacuum, and recharged with new R-410A refrigerant. Tested the system, ensuring proper operation and performance.
Chestertown, MD 21620
I completed a comprehensive rejuvenation of the club's AC system, ensuring it operates efficiently. The process began with a thorough cleaning of all components, followed by meticulous testing to confirm functionality. The system was operational and performing well before departure. I also conducted a detailed inspection, verifying that all parts were in optimal condition. Additionally, I recommended continuing the practice of changing the filters every three months to maintain efficiency. The club membership was renewed today, ensuring uninterrupted access to services.
I completed a comprehensive rejuvenation of the club's AC system, ensuring it operates efficiently. The process began with a thorough cleaning of all components, followed by meticulous testing to confirm functionality. The system was operational and performing well before departure. I also conducted a detailed inspection, verifying that all parts were in optimal condition. Additionally, I recommended continuing the practice of changing the filters every three months to maintain efficiency. The club membership was renewed today, ensuring uninterrupted access to services.
Matt P.
Matt P. Checked in
I completed a comprehensive rejuvenation of the club's AC system, ensuring it operates efficiently. The process began with a thorough cleaning of all components, followed by meticulous testing to confirm functionality. The system was operational and performing well before departure. I also conducted a detailed inspection, verifying that all parts were in optimal condition. Additionally, I recommended continuing the practice of changing the filters every three months to maintain efficiency. The club membership was renewed today, ensuring uninterrupted access to services.
Chestertown, MD 21620
Installed structural anchors and support straps to secure deck framing to exterior wall per management specifications. Verified proper attachment of pressure-treated lumber framework to building structure using metal brackets and fasteners. Inspected crawl space and attic areas to assess structural connections and documented installation with photographic evidence.
Installed structural anchors and support straps to secure deck framing to exterior wall per management specifications. Verified proper attachment of pressure-treated lumber framework to building structure using metal brackets and fasteners. Inspected crawl space and attic areas to assess structural connections and documented installation with photographic evidence.
Jordan H.
Jordan H. Checked in
Installed structural anchors and support straps to secure deck framing to exterior wall per management specifications. Verified proper attachment of pressure-treated lumber framework to building structure using metal brackets and fasteners. Inspected crawl space and attic areas to assess structural connections and documented installation with photographic evidence.
Chestertown, MD 21620
Review
He was great thank him for us
Rose - Chestertown, MD 21620
Upon arrival, I identified that the system was not activating the second-stage cooling. I began by inspecting the low-voltage control wiring at both the indoor and outdoor units. After discovering several issues, I meticulously corrected the wiring connections. Following the corrections, I tested the system to ensure proper operation. The system is now successfully energizing and operating in second-stage cooling. To confirm efficiency, I measured the temperature split Delta T, which was found to be 22 degrees during operation. The system is fully functional and operating in cooling mode, completing the service successfully.
Upon arrival, I identified that the system was not activating the second-stage cooling. I began by inspecting the low-voltage control wiring at both the indoor and outdoor units. After discovering several issues, I meticulously corrected the wiring connections. Following the corrections, I tested the system to ensure proper operation. The system is now successfully energizing and operating in second-stage cooling. To confirm efficiency, I measured the temperature split Delta T, which was found to be 22 degrees during operation. The system is fully functional and operating in cooling mode, completing the service successfully.
Howard M.
Howard M. Checked in
Upon arrival, I identified that the system was not activating the second-stage cooling. I began by inspecting the low-voltage control wiring at both the indoor and outdoor units. After discovering several issues, I meticulously corrected the wiring connections. Following the corrections, I tested the system to ensure proper operation. The system is now successfully energizing and operating in second-stage cooling. To confirm efficiency, I measured the temperature split Delta T, which was found to be 22 degrees during operation. The system is fully functional and operating in cooling mode, completing the service successfully.
Chestertown, MD 21620
Greg P.
Greg P. Checked in
WO-TNFR663842 water heater side operation test and working properly
Chestertown, MD 21620
Chris C.
Chris C. Checked in
Ac pm. All opsrunning normal. See rich ticket.
Chestertown, MD 21620
Completed comfort call consultation for heat pump replacement evaluation. Inspected existing HVAC system located in attic space, documenting current ductwork configuration with insulated flexible ducts, electrical connections, and PVC condensate drainage lines. Photographed attic installation conditions to assess replacement requirements and provide accurate system sizing recommendations.
Completed comfort call consultation for heat pump replacement evaluation. Inspected existing HVAC system located in attic space, documenting current ductwork configuration with insulated flexible ducts, electrical connections, and PVC condensate drainage lines. Photographed attic installation conditions to assess replacement requirements and provide accurate system sizing recommendations.
Jason T.
Jason T. Checked in
Completed comfort call consultation for heat pump replacement evaluation. Inspected existing HVAC system located in attic space, documenting current ductwork configuration with insulated flexible ducts, electrical connections, and PVC condensate drainage lines. Photographed attic installation conditions to assess replacement requirements and provide accurate system sizing recommendations.
Chestertown, MD 21620
Chris C.
Chris C. Checked in
Customer noticed tstat wasnt keeping up. Ac operates excellent. All voltages and temp in range. Once the attic got extremely hot and effected air slightly. Our return drop wasnt insulated on the install. Just needs to be insulated. Ran got material and insulated return box. All operations running normal. Install Callback. WO-TNFR661500
Chestertown, MD 21620
Steven P.
Steven P. Checked in
Supply 16x10 to 10x10 4x8" plus 2x5" 13.5 x 10 Return 14 12 8
Chestertown, MD 21620
Chris C.
Chris C. Checked in
No A/C. Found voltage distributor failed after thorough inspection. Replaced and checked operations. Delta t 18 degrees. All operations running normal. Warranty. Collected $129 dispatch fee. Recommended after they are done construction inside their home to get a duct cleaning. WO-TNFR660810
Chestertown, MD 21620
Review
AC was not turning on. Howard was able to diagnose the issue within 1/2 an hour. Very professional.
Chestertown Customer - Chestertown, MD 21620
Howard M.
Howard M. Checked in
Performed diagnostic testing on the HVAC system. Refrigerant pumping system tested with an LRA rating of 59.5 amps and actual startup amperage of 63.5 amps. Compressor RLA is rated at 11.5 amps with actual operating amperage of 5.1 amps, which is within acceptable operating range during testing. Exhaust removal system motor is rated at 0.95 amps and tested at 0.83 amps. Line voltage measured 240V at time of service. Tested voltage enhancement system capacitor rated at 35/5 MFD with actual readings of 34/4 MFD. Electrical winding resistance readings were R2/C = 1.3, R2/S = 2.7, and S2/C = 1.4. Inspected air filtration system and found 18x20x1 filter heavily clogged and in need of replacement. Restricted airflow from clogged filter could potentially cause evaporator coil freezing and condensation buildup. Further inspection found blower compartment door was not properly secured and was not engaging the door safety switch, preventing proper system operation. Door was properly secured a
Chestertown, MD 21620
Review
I am extraordinarily pleased with the service provided by Jason and his team. From the initial set up of the project to final clean up, everything went beautifully. Everyone involved was courteous, neat and professional. I was thoroughly informed about every step of the entire installation and was involved to actually observe how the process was going. The new equipment was tested for proper operation before anyone left at the end of the installation. Jason has created thoughtful team that delivered on all his promises. I would gladly recommend Moon and Jason to anyone who need HVAC services.
Chrles Aldrich - Chestertown, MD 21620
Jack W.
Jack W. Checked in
Ac club rejuvination: delta t was 16. Air movement system was clean and clear of all debris and signs of concern but I wiped off just in case. Air filter system was dirty but they don’t have anymore air rangers so they will order more. All wiring was clean and secure. Drain line was clean and clear of all debris. Cleaned off inside and outside of indoor unit with proper cleaner and wipes. Outdoor voltage enhancement system was running at 34.9/5uf. Factory spec is a 35/5uf. Voltage gateway system was clean and clear of all signs of concern or debris. Cleaned off inside and outside of outdoor unit. System running at normal operation at this time.
Chestertown, MD 21620
Tammy A.
Tammy A. Checked in
Consultation Code: ENGVRA9VI
Chestertown, MD 21620
Review
Clay diagnosed three issues with our upstairs system and associated outdoor unit. He was able to repair one on the spot; the other two will require a return trip with materials. He was courteous and efficient and took the time to explain everything and answer questions.
Robinson - Chestertown, MD 21620
Steven P.
Steven P. Checked in
Joyce wants to see Delmarva.Power bills with customers that have these many splits before she moves forward
Chestertown, MD 21620
Clay K.
Clay K. Checked in
Club AC: delta T 20 degrees. Changed filter customer supplied. Indoor voltage enhancement system rated 10uf actual is 10.1uf. Indoor Coil clean. Indoor fan was clean. Checked electrical connections. Outdoor RLA rated 17.5 amps actual is 8.1 amps. Outdoor fan amps rated .95 actual .71. outdoor voltage rated 45/5uf actual 45.2/4.9. cleaned outdoor coil. Flushed drains with cleaner.
Chestertown, MD 21620
Clay K.
Clay K. Checked in
Club AC: delta T 20 degrees. Changed filter customer supplied. Indoor voltage enhancement system rated 10uf actual is 10.1uf. Indoor Coil clean. Indoor fan was clean. Checked electrical connections. Outdoor RLA rated 17.5 amps actual is 8.1 amps. Outdoor fan amps rated .95 actual .71. outdoor voltage rated 45/5uf actual 45.2/4.9. cleaned outdoor coil. Flushed drains with cleaner.
Chestertown, MD 21620
Clay K.
Clay K. Checked in
Club AC: delta T 20 degrees. Changed filter customer supplied. Indoor voltage enhancement system rated 10uf actual is 10.1uf. Indoor Coil clean. Indoor fan was clean. Checked electrical connections. Outdoor RLA rated 17.5 amps actual is 8.1 amps. Outdoor fan amps rated .95 actual .71. outdoor voltage rated 45/5uf actual 45.2/4.9. cleaned outdoor coil. Flushed drains with cleaner.
Chestertown, MD 21620
Clay K.
Clay K. Checked in
Club AC: delta T 20 degrees. Changed filter customer supplied. Indoor voltage enhancement system rated 10uf actual is 10.1uf. Indoor Coil clean. Indoor fan was clean. Checked electrical connections. Outdoor RLA rated 17.5 amps actual is 8.1 amps. Outdoor fan amps rated .95 actual .71. outdoor voltage rated 45/5uf actual 45.2/4.9. cleaned outdoor coil. Flushed drains with cleaner.
Chestertown, MD 21620
Clay K.
Clay K. Checked in
Warranty parts and labor need to return.
Chestertown, MD 21620
Clay K.
Clay K. Checked in
Warranty parts and labor need to return.
Chestertown, MD 21620
Clay K.
Clay K. Checked in
Warranty parts and labor need to return.
Chestertown, MD 21620
Clay K.
Clay K. Checked in
Warranty parts and labor need to return.
Chestertown, MD 21620
Review
Great and friendly service
Magee - Chestertown, MD 21620
Response from Moon Air Inc.:

We are incredibly grateful that you took the time out to leave us a 5-Star review.

Review
Great service
Magee - Chestertown, MD 21620
Review
Great service
Magee - Chestertown, MD 21620
Review
Clay did a great checkout of our system
Armstrong - Chestertown, MD 21620
Review
Very thorough and good explanation of findings. Friendly demeanor.
McClary - Chestertown, MD 21620
Response from Moon Air Inc.:

Thank you so much for this 5-star review. We really appreciate you being a customer and helping to share the word about us. We’re here for you anytime.

Review
Jack did a great job with our seasonal cleaning and inspection of our HVAC. He was conscientious and polite. Great Job!!
Customer in Chestertown - Chestertown, MD 21620
Response from Moon Air Inc.:

Thank you for the wonderful review and for taking the time to share your feedback.

Review
Excellent Service
NT - Chestertown, MD 21620
Review
Howard was very thorough and conscientious in his work. He was also very respectful of our clean home by putting booties on over his shoes.
Plank - Chestertown, MD 21620
Review
Paul did an excellent job. He was courteous and explained things nicely .
Kennedy - Chestertown, MD 21620
Review
Great Company
Busby - Chestertown, MD 21620
Review
Howard arrived and went right to work. He moves quietly but with purpose. He did not leave one stone unturned. He kept going until he found the solution!!!!! THANK YOU HOWARD. Such a professional!!!
Redman - Chestertown, MD 21620
Response from Moon Air Inc.:

Thanks for leaving us such a wonderful review. We are glad that you loved our services, our dedicated staff will be pleased to learn of your high praise.

Review
as I am enrolled in the gold plan, service was addressed quickly. However, my 2 1/2 year old unit has a part that needs replacing. Of course this happens during an extremely hot spell!!!! so we will wait for the part to arrive. Paul was wonderful and did his very best. He is knowledgeable and was very kind
Redman - Chestertown, MD 21620
Review
Workers were very impressive, they did excellent work.
Armstrong - Chestertown, MD 21620
Review
Excellent service!!!!!
Wode - Chestertown, MD 21620
Review
Excellent service!!!
Wode - Chestertown, MD 21620
Review
You guys are the best!!!!!
Redman - Chestertown, MD 21620
Response from Moon Air Inc.:

Thanks for leaving us such a wonderful review. We are glad that you loved our services, our dedicated staff will be pleased to learn of your high praise.

Review
Excellent service!!!!
Wode - Chestertown, MD 21620
Response from Moon Air Inc.:

Thank you so much for this 5-star review. We really appreciate you being a customer and helping to share the word about us. We’re here for you anytime.

Review
Excellent service!!!
Chris Wode - Chestertown, MD 21620
Review
Club check up was done quickly and was done well! Thx Jesse and Greg
Johnson - Chestertown, MD 21620

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