HVAC Maintenance
By A J Michaels Co
A J Michaels Co can help keep your HVAC system running at peak performance with preventive maintenance services near Baltimore, MD. Our skilled technicians provide thorough tune-ups and HVAC maintenance that may help extend the life of your system and ensure year-round comfort.
What Does The Process Look Like?
Book an Appointment
To start the process, book an appointment for HVAC maintenance with us by scheduling online or giving us a call.
Evaluation & Estimate
We will assess your HVAC system and recommend the appropriate maintenance services. We will provide a detailed estimate outlining the necessary tasks and costs to ensure your system runs efficiently and reliably year-round.
Perform Maintenance
A certified technician will perform thorough HVAC system maintenance to ensure optimal performance, help improve efficiency, extend the system's lifespan, and prevent future issues.
Other Services We Provide
AC Repair & Service
We offer professional AC repair and service to keep your air conditioner running efficiently and reliably. Our technicians diagnose issues, perform necessary repairs, and ensure optimal performance for your home’s comfort.
Furnace Repair & Service
We provide professional furnace repair and service to keep your heating system operating at peak performance. Our certified technicians can identify problems, perform necessary repairs, and fine-tune your system to keep you comfortable all year long.
HVAC System Installation
Let us ensure reliable comfort and energy efficiency for your home with professional HVAC system installation. We offer high-quality Carrier equipment, precise HVAC installation, and customized solutions to meet your heating and cooling needs.
Trusted HVAC Professional in Baltimore
Verified PurchaseExcellent
April 09, 2026
Rick, my assigned technician for the installation, was excellent. He was patient, friendly, and knowledgeable. He answered any questions I had. I had heard rave reviews about A.J. Michaels, and would highly recommend the company.
ARLENE
Expertise (5)
Solve Problems (5)
Service (5)
Verified Purchaseexcellent service
October 14, 2025
aj michaels is a 5 star company . paul mentzer best project estimate guy -straight to the point not hustling the customer. cory and kurt are top guys too in the installation business . more power to aj michaels for taking care of their crew.
PAUL
Expertise (5)
Solve Problems (5)
Service (5)
Verified PurchaseGreat responsiveness
April 09, 2025
The original installers didn’t connect the thermostat to the heating element (or whatever) so when we switched from cooling to heating, we still had cooling. They came out immediately and fixed the problem. Very satisfied.
MARK
Expertise (4)
Solve Problems (5)
Service (5)
Verified PurchaseSatisfied Customer
March 23, 2025
I am a long-time client. I have been happy with AJ Micheals' service and pricing. I highly recommend them to my family and friends.
DANA
Expertise (5)
Solve Problems (5)
Service (5)
Verified PurchaseNew AC
March 17, 2025
Great to work with
JEFFREY
Expertise (4)
Solve Problems (4)
Service (4)
Verified PurchaseNO COMPLAINTS
March 13, 2025
VERY HAPPY
AGNES
Expertise (5)
Solve Problems (5)
Service (5)
Verified Purchasetrue to their word !!
April 17, 2024
we've been dealing with this company since we moved back to Baltimore and find them to be very reliable in every respect...
THOMAS
Expertise (5)
Service (5)
Solve Problems (5)
Verified PurchaseExcellent
April 08, 2024
Trustworthy , professional, caring
FARIBA
Expertise (5)
Service (5)
Solve Problems (5)
Verified PurchaseUnsatisfied
February 23, 2024
Installation was poorly and follow up was worst. Installation 12/5/23/. Did not have work completed and fully functional until 12/21/23.
Peggy
Expertise (1)
Service (1)
Solve Problems (1)
Verified Purchase2021 heat pump/AC
April 29, 2021
Installed on monday but doesn't work. Team#2 works the next day and gets AC working but 8 hrs later the house was 57degrees and cant turn it off. Next day team#3 fixes problem in 4 hrs
ROBERT
Expertise (1)
Service (1)
Solve Problems (1)
Verified PurchaseSatisfaction
April 15, 2021
Always excellent service and response when there is a problem. Great employee rapport.
JANET
Expertise (5)
Service (5)
Solve Problems (5)
Verified PurchaseExcellent and Professional Experience,Best Price
March 29, 2021
We got an excellent price from their very professional and knowledgeable estimator. Installation was great with professional,knowlegeable neat and personable installers. We are very pleased with our choice to use A.J.Michaels Co. to install our new Carrier furnace and central a/c system.
RUTH
Expertise (5)
Service (5)
Solve Problems (5)
Verified PurchaseExcellent Service
March 08, 2021
From the initial sales contact to Installation this was a great experience. The sales and support team were professional, polite, and knowledgeable and worked with me to make sure my expectations were met. The installation team was first class, polite, experienced, focused, thoughtful, and effective at communicating and setting expectations. They treated my home as if it were their own and cleaned up thoroughly each day. The craftsmanship is excellent. The heat pump system exceeds expectations keeping us warm and comfortable even with the outdoor temperature at 17 degrees.
BILL
Expertise (5)
Service (5)
Solve Problems (5)
Verified PurchaseReplacement of Furnace and air conditioning equipment
February 22, 2021
Very satisfied with the pricing and installation of my replacement equipment. I would recommend A.J. Michaels to my family members, friends and anyone having problems with or needing replacement of their system.
MARSHALL
Expertise (5)
Service (5)
Solve Problems (5)
Verified PurchaseAc install
August 24, 2020
Very careful with floors and carpets. Nicely cleaned up. Professional staff.
LINDA
Verified PurchaseFantastic
August 18, 2020
A really wonderful and easy interaction with everyone at A.J. Michaels.
MARIE
Expertise (5)
Service (5)
Solve Problems (5)
Verified PurchaseFantastic service!
August 07, 2020
Rick and Ricky delivered fantastic service. Professional and courteous.
geannine
Expertise (5)
Service (5)
Solve Problems (5)
Verified Purchasegreat job
July 09, 2020
I have no complaints at all
William
Expertise (5)
Service (5)
Solve Problems (5)
Verified PurchaseProfessional in every way
August 12, 2016
During a recent heat wave my ancient a/c system gave up. It was an obvious decision to replace it. What was unexpected was the effort they extended to literally re\-wire the old system so that it could limp along until the new system was installed\-\-at no charge.
John
Expertise (5)
Service (5)
Solve Problems (5)