HVAC Contractor Serving Atlanta, GA Area
About Us
Maintenance Unlimited Heating & Cooling was founded in 2001 by owner Sean McKinney in Atlanta, Georgia. Since the beginning, our company has been committed to the principle that a quality heating repair resource should be easy to reach, dedicated to listening to the needs of our customers, and perform at the highest level of professionalism—offering exceptional workmanship and customer service.
We know there are many heating and air conditioning companies in Atlanta, and it can be hard to know which one to choose.
24/7 Customer Service
Our HVAC Services
Cooling
Contact us today for air conditioning services in Atlanta, East Cobb, College Park, and surrounding areas.
Heating
Contact us today for heating services in Atlanta, East Cobb, College Park, and surrounding areas.
Home Air Quality
Contact us today for indoor air quality services in Atlanta, East Cobb, College Park, and surrounding areas.
Heat
Pumps
Contact us today for heat pump services in Atlanta, East Cobb, College Park, and surrounding areas.
Commercial HVAC
Contact us today for commercial HVAC services in Atlanta, East Cobb, College Park, and surrounding areas.
Water
Heaters
Contact us today for water heater services in Atlanta, East Cobb, College Park, and surrounding areas.
Why Homeowners Choose Maintenance Unlimited Heating & Cooling
Hiring an HVAC contractor is about trust. Here’s why local homeowners rely on us.
Local Experience
We serve College Park, GA and understand the climate, housing styles, and system demands common in this area.
Straightforward Service
You get clear explanations, honest recommendations, and no pressure tactics. We focus on what your system actually needs.
Quality Work Standards
Every repair and installation follows proper procedures, manufacturer guidelines, and safety standards.
Customer-First Approach
We respect your time, your home, and your budget. Clean work areas, reliable scheduling, and follow-through matter here.
Full-Service Capability
From simple maintenance to full system replacements, you don’t need multiple contractors. We handle it all.
24/7 Customer Service
Testimonials
Posted on Google![]()
Ferial HassanTrustindex verifies that the original source of the review is Google.
If you are looking for a company that is thorough and takes pride in their work, you have come to the right place. I highly recommend Shaun and his team!!Posted on Google![]()
Dabbie DavisTrustindex verifies that the original source of the review is Google.
Great workmanship, honest and professional. I definitely recommend Sean at Maintenance Unlimited Heating & Cooling for all your related needs.Posted on Google![]()
B.E. P.Trustindex verifies that the original source of the review is Google.
Prompt, Friendly, Excellent Work and Excellent EmployeesPosted on Google![]()
Caleb SpillyardsTrustindex verifies that the original source of the review is Google.
Excellent service. Just got a split unit and it was installed in just a few hours, super clean installation, and I was scheduled immediately.Posted on Google![]()
William FlemingTrustindex verifies that the original source of the review is Google.
Sean and his team did a great job troubleshooting my AC. He got it working with a replacement part he had in his truck. Clean and professional!Posted on Google![]()
D ThomasTrustindex verifies that the original source of the review is Google.
This review was earned 1000%. There is no way this company has a legit 4.9 rating. No way. I had a new HVAC installed by this company over a year ago. The same day after install, they had to come back in the middle of the night because the ac would not shut off. I followed up a few times after the install to let them know the unit was putting out more water than I’d ever seen on this home or any other and it was a concern. In addition the wires were not aligned neatly and it was duct taped together which looked very tacky. The new unit came with two follow up services. Over a year later I called to see why I had not heard from them and was told somehow I was left off the service list. When they did come I asked Sean how things were looking with the unit and couldn’t trust that I received a true assessment. The unit had not been checked in over a year so I’m not sure what condition the unit is in at this point. After he left today, I realized my home was not cooling though the up and downstairs thermostats were set to 73, it was over 80 degrees in my home and the unit was not running. He had to come back again to recheck his work, same as the installation day. I was told the issue is a clogged drain line. Mind you Sean was just a few hours earlier to complete the service check which means it wasn’t complete the first time. I reminded him again that I raised concerns that too much water was collecting around the unit but he claimed that was normal and because of how my home is situated the sun was not drying the water???? No, the water collecting was an indication of a clogged drain that I made him aware of shortly after the install. Now it’s 10pm at night, the problem is still not fixed and he said the drain is still not clear. What in the entire hell? More than likely there is also mold in my house as a result of this. I sincerely regret using this company. I regret it so much. Maintaining your hvac and home is stressful enough. The work is too sloppy for me, poor communication, lack of competence, you name it. I paid cash for their sorry services and the HVAC. If it’s costly to fix their horrible work, a claim will follow.Posted on Google![]()
Albertina WilsonTrustindex verifies that the original source of the review is Google.
Nick was very thorough on my service call; And, he will use his expertise to put together some recommendations and pricing for me. He also gave me some great information on maintaining services during these power outages that seem to happen often in my area.
Tony H.
Angel S.
Aki D.
John W.
Erika B.
Derk H.
Featured Manufacturer
Service Areas
- Atlanta
- Austell
- Avondale Estates
- City of South Fulton
- Clarkston
- College Park
- Conley
- Decatur
- Douglasville
- Eastpoint
- Ellenwood
- Fairburn
- Fayetteville
- Forest Park
- Hampton
- Hapeville
- Jonesboro
- Lithia Springs
- Lithonia
- Mableton
- East Cobb
- Morrow
- Palmetto
- Peachtree City
- Redan
- Rex
- Riverdale
- Scottdale
- Smyrna
- Stockbridge
- Stone Mountain
- Tucker
- Tyrone
- Union City
Frequently Asked Questions
How quickly can you respond to HVAC service calls?
Response times vary by demand, but we prioritize urgent heating and cooling issues and schedule service as quickly as possible.
Do you work on both heating and air conditioning systems?
Yes. We provide complete HVAC services including AC, heating, furnaces, heat pumps, electric heating, and gas heating systems.
When should I replace my HVAC system instead of repairing it?
If your system is older, inefficient, or requires frequent repairs, replacement may be more cost-effective long term. We provide honest recommendations.
Do you offer HVAC maintenance plans?
We offer routine maintenance services to help pr
Are heat pumps a good option for College Park homes?
Heat pumps are an efficient option for many Georgia homes. We can evaluate your property and recommend the right system.
Schedule HVAC Service in College Park Today
If you’re looking for a dependable HVAC contractor in College Park, GA, Maintenance Unlimited Heating & Cooling is ready to help. From urgent repairs to planned system upgrades, our team delivers reliable comfort solutions you can trust.
Call now or request a quote to get started.










