We are proud to offer a variety of HVAC services to our customers in Northwest Metro Atlanta. Our service area covers many counties, including Cobb, Paulding, Douglas, Cherokee, Bartow, Carroll & Fulton Counties. Every AC service call we answer and every AC installation we complete is done with the utmost professionalism, with the most precise attention to detail, and with your ultimate satisfaction in mind. We are a Trane Premier dealer and Ruud dealer, and we provide HVAC installation, HVAC repair and maintenance, fireplace services, duct system work and cleaning, air quality services, and more. When you need air conditioning installation or other service in Dallas, Marietta, Powder Springs, Hiram, Austell, or the surrounding area, get in touch with the best local HVAC company, E Dennis Air Conditioning & Heating.
E Dennis HVAC Services

Our Trane high-efficiency cooling systems are designed to bring you comfort, quality, and dependability in all price ranges. The SEER rating of an AC system is based on its energy efficiency, and typical AC units range from 13 to 21. Here at E Dennis Air Conditioning and Heating in Dallas, GA, we have high-efficiency cooling systems that range from 14 SEER all the way through 25 SEER. Upgrading to a high-efficiency air conditioning unit from E Dennis will improve your in-home comfort and decrease your power bill. Our Dallas AC installers are ready to provide you with an incredible AC installation to decrease indoor moisture, increase energy savings, and add value to your home.
Our Trane heating systems will introduce a whole new level of comfort and warmth to your home. They are designed with quality and dependability in mind, and they contribute to your home’s overall energy efficiency. High-efficiency heating systems from E Dennis will work cohesively with your thermostat and AC unit to optimize comfort and minimize energy output. All of our heating systems in Dallas, GA have a high Annual Fuel Utilization Efficiency (AFUE) so that you get the most out of your unit.


Our Trane heat pump systems will bring about increased energy efficiency within your home. When our Dallas, GA heating installers get your high-efficiency heat pump up and running, you’ll be blown away by the dependability of the systems and the comfort they create. From 14 SEER efficiency to 25 SEER capacity, we will optimize the energy used within your home to minimize your expenses and maximize your comfort. Our high-efficiency heat pumps can be part of a total electrical system or part of a dual fuel system for enhanced heating. Our heating technicians and installers can assess your current heat pump system and assist you in improving upon it.
Having an energy efficient duct system is vital for having an efficient HVAC system in your home. If your ductwork is loose or ineffective, your HVAC unit is going to be working significantly harder, costing you more money and reducing the comfort levels inside your home. If you are unsure about the energy efficiency of your duct systems in your home, our DET certified technicians can perform tests on the ductwork to gauge its energy efficiency. We can make recommendations based on the test results, and if need be, our Dallas, GA duct system installers can put in a new high-efficiency system for you.


Our HVAC and fireplace experts have significant experience and training in working with non-vented gas fireplaces, and we can help you with any questions you may have about your fireplace. We can provide you with remote operated gas logs for your non-vented fireplace, adding luxury and value to your home. We also specialize in space heaters, making your heating system options as effective and complete as possible. If you have any questions for our Dallas, GA fireplace and heating experts, whether about fireplaces, gas logs, or space heaters, trust the experts at E Dennis Air Conditioning & Heating.
Like most things in life, your HVAC system needs regular maintenance to ensure it is functioning at maximum efficiency. Our Dallas, GA HVAC experts have training and experience handling all HVAC maintenance tasks to keep your unit in the best shape possible all year round. Our state-of-the-art diagnostic tools and methods will help reduce breakdowns of equipment and will keep your energy efficiency as high as possible. We are honored to serve our community with HVAC maintenance plans that are always serviced by the best HVAC technicians in Dallas, GA.


Wi-Fi thermostats offer you the flexibility of controlling your HVAC system from anywhere. These are great tools for optimizing energy efficiency and in-home comfort, but they have to be paired with your HVAC system properly and installed correctly, and a lot of companies cannot do that. Here at E Dennis, we are HVAC experts who have served Dallas, GA and the surrounding area for decades, and we are constantly learning and training about the newest technology in our industry. Don’t make a costly mistake by letting an unqualified company or individual install your Wi-Fi thermostat. Instead, trust the HVAC experts at E Dennis for full remote control over your home’s heating and cooling systems.
A crawl space is an important part of your home and you should be attentive to it regularly. We know that can be hard though, which is why we’re here to help. Crawl space encapsulation is a great way to seal off the foundation and properly control the humidity of the crawl space. This not only minimizes mold and mildew in the crawl space which can affect the indoor air quality of your home and the structural foundation, but it also reduces the likelihood of having rodents, insects, and snakes living beneath your home. Crawl space encapsulation also makes it easier to service the HVAC unit below your home, leading to more effective HVAC repairs in your Dallas, GA home.


Indoor air quality is very underrated, but within the HVAC industry, we know the importance of having clean, pure air inside your home. Whether you’re interested in reducing allergens, improving overall health, or just want to ensure the air you’re breathing is clean, we have a variety of indoor air quality products that are sure to help our community. IAQ products include high-efficiency filtration, humidification, and dehumidification, as well as ultraviolet duct lights and energy recovery ventilation. Not only will these IAQ products increase the overall quality of air when it comes to breathing inside your home, but they also improve the efficiency and increase the lifespan of your HVAC equipment. A Dallas HVAC technician and air quality expert can assess your home’s air quality and provide solutions to improve your home.