Fast, Reliable AC Repair in Marietta, GA You Can Trust
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Cooling Help Built for Cobb County
It is late July, the humidity is thick, and your air conditioner just stopped blowing cold air right as the afternoon storms roll off Kennesaw Mountain. The thermostat keeps climbing, the house feels sticky, and the last thing you want is to sweat it out overnight. That is exactly the moment a fast, dependable repair matters most.
That is where we come in. E Dennis Air Conditioning, Heating, Plumbing & Electrical has served Georgia families for over 30 years, and we answer the phone day or night at (770) 758-0501. We are licensed and insured, A+ rated with the Better Business Bureau, and proud to call ourselves “Your Everyday Home Service Heroes!” And whether you live near Marietta Square or out in one of Cobb County’s newer subdivisions, our technicians know the local homes and the local climate. But more than that, we treat your comfort like it is our own.
AC Repair in Marietta, GA Done Right
Marietta sits in the Piedmont region, where hot, humid summers push air conditioners hard from May through September. Add the frequent summer thunderstorms that roll through Cobb County, and it is no surprise that compressors, capacitors, and fan motors take a beating year after year. When your system struggles, you need a team that diagnoses the real problem instead of guessing.
Our technicians handle every kind of cooling breakdown, from refrigerant leaks and frozen coils to failed thermostats and worn blower motors. We carry commonly needed parts on our trucks so many repairs get finished in a single visit. And because we have worked on homes near the Big Chicken, around Glover Park, and throughout the suburban neighborhoods stretching along Cobb Parkway, we understand the range of systems in this area. Older historic homes near the Square often need careful, thoughtful work, while newer subdivisions may run high-efficiency equipment that calls for a different approach.
No matter the age of your equipment, we explain what is wrong, walk you through your options, and get your cooling back on track. Call (770) 758-0501 to schedule your repair.
Complete Cooling Services We Offer
AC repair is just the start. We handle the full range of cooling needs for Marietta homes and businesses, so you have one trusted team for whatever comes next. And if a repair reveals that replacement makes more sense, we can walk you through that too, without pressure.
Our cooling services include:
- AC Installation
- AC Repair
- AC Maintenance
- Duct Systems
- Air Duct Sealing
- Air Duct Repair
- Air Duct Installation
- Ductless Mini Splits
- Thermostats
- Smart Thermostats
- Crawl Space Encapsulation
- Indoor Air Quality
- Commercial HVAC
- HVAC Maintenance Plans
- AirCare Duct Replacement
From duct sealing that lowers your summer energy bills to smart thermostats that give you control from your phone, we help you get more from your cooling system all season long.
Warning Signs Your AC Needs Attention
Air conditioners rarely fail without warning. Most give off small clues before they quit entirely, and catching those early can save you from a full breakdown during a Cobb County heat wave. Pay attention to warm air coming from the vents, weak airflow, or a system that runs constantly but never quite cools the house.
Strange noises like grinding, rattling, or buzzing often point to a failing motor or loose component. And unusual smells, especially musty or burning odors, should never be ignored. Rising energy bills without a change in your habits can also signal a system working harder than it should, often because of dirty coils or refrigerant problems.
Water pooling around the indoor unit, short cycling, and a thermostat that will not hold its setting are all reasons to call. But even if you are not sure what is wrong, it is better to have a licensed technician look sooner rather than later. Small issues become expensive failures fast in the middle of a humid Marietta summer.
Around-the-Clock Emergency AC Repair
Air conditioners do not check the clock before they fail. A system might quit at midnight during a heat wave or right before you host family for the weekend. That is why we keep technicians available 24/7, every day of the year, ready to respond when you need help most.
When you call after hours, you are not left waiting until morning. Our team answers, gathers the details, and dispatches a licensed technician to your home. And because our trucks are stocked with commonly needed parts, we are often able to complete emergency repairs on the first visit rather than scheduling a return trip. For homes across Marietta and the wider Atlanta metro, that fast response makes a real difference in comfort and peace of mind. Reach us anytime at (770) 758-0501.
Prevent Breakdowns With Regular Maintenance
The best repair is the one you never need. Regular maintenance keeps your air conditioner running efficiently and catches small problems before they turn into failures on the hottest day of the year. Given how hard systems work through a Marietta summer, an annual tune-up is one of the smartest things a homeowner can do.
Our HVAC maintenance plans cover the essentials: cleaning coils, checking refrigerant levels, testing electrical connections, and confirming that every component is doing its job. And members enjoy added peace of mind knowing their system is inspected on a regular schedule. Over time, a well-maintained system runs cheaper, lasts longer, and breaks down far less often. But maintenance also protects your warranty and keeps your home comfortable through both the humid summers and the occasional winter freeze that Cobb County sees.
Ask us about joining a maintenance and membership plan the next time we visit your home.
Heating, Plumbing, and Electrical Too
E Dennis is more than an AC company. We are a full-service home team, which means the same trusted technicians can handle nearly everything under your roof. That saves you the hassle of tracking down a different contractor for every job around the house.
Our heating services include:
- Furnaces
- Heat Pumps
- Fireplaces
- Gas Logs
- Space Heaters
Our plumbing services include:
- Water Heaters
- Tankless Water Heaters
- Drain Cleaning
- Sewer Line Repair
- Sewer Camera Inspection
- Water Jetting
- Water Line Repair
- Repiping
- Rough In
- Slab Leak Repair
- Excavation
- Emergency Plumbing Services
- Commercial Plumbing
Our electrical services include:
- Electrical Wiring
- Lighting Installation
- Panel Upgrades
- Surge Protection
- EV Charger Installation
- Generators
- Generator Buying Guide
Proudly Serving Marietta and Beyond
With core offices in Marietta and Peachtree City, we are well positioned to serve homes across Northwest Georgia and the greater Atlanta metropolitan area. Marietta is the seat of Cobb County, sitting just northwest of Atlanta near Smyrna, Kennesaw, and Roswell, and we know these communities well.
Interstate 75 and US-41 keep our trucks moving quickly through the area, so response times stay short whether you are downtown near the courthouse or out toward Dobbins Air Reserve Base. And our service area reaches well beyond the city limits, including communities like Alpharetta. You can view the full list on our Area Served page. But no matter where you are in our coverage area, you get the same licensed, insured technicians and the same commitment to doing the job right.
- Water line repairs
- Water heater installation and repair
- Toilet repairs
- Excavations
- Slab leaks
- Sewer lines
- Garbage disposals
- Repiping
Financing to Fit Your Budget
A major AC repair or replacement can arrive at an inconvenient time. But a broken system in the middle of a Georgia summer is not something you can put off, and we understand that. That is why we offer financing options designed to make comfort affordable when you need it.
Financing lets you spread the cost of a repair or a new system over time instead of paying everything at once. And for homeowners considering a new high-efficiency HVAC system, there may be IRA and tax rebate opportunities worth exploring, which our team can help you understand. We keep the process straightforward so you can focus on getting your home comfortable again. Ask us about financing when you call, and we will help you find a path that works for your household.
- Leaky toilets
- Sewer line stoppages
- Clogged kitchen sinks
- Frozen pipes
- Broken water line
- Backed up sewer line
- Broken water heater
- Repiping
Fully Licensed and Insured in Georgia
When you let a technician into your home, credentials matter. E Dennis is fully licensed and insured in the state of Georgia, holding GA Licenses CR007711 for HVAC, MPR108400 for plumbing, and EN215803 for electrical work. That means the person working on your air conditioner is trained, accountable, and backed by a company that stands behind its work.
Being licensed and insured also protects you. It means the job meets state standards and that you are covered if something unexpected happens. And after more than 30 years serving Georgia families, we have built our reputation on doing things the right way, one repair at a time. Our A+ rating with the Better Business Bureau reflects that steady commitment to quality and honesty.
- Alpharetta
- Cumming
- Acworth
- Kennesaw
- Atlanta
- Smyrna
- Mableton
- Roswell
- Holly Springs
- Canton
- Oakwood
- Suwanee
- Ellijay
- Woodstock
- Chestnut Mountain
- Clarkdale
- Nelson
- Lithia Springs
- Ball Ground
- Marietta
- Other Surrounding Communities
Three Decades of Trusted AC Repair in Marietta, GA
Reputation is earned slowly and lost quickly, especially in a tight-knit community like Cobb County. For over 30 years, we have worked hard to earn the trust of Marietta homeowners, from the historic Victorian and antebellum-era properties near the Square to the sprawling suburban subdivisions built through the later 20th century and beyond.
Every home is different, and the red clay soil and rolling Piedmont terrain here create their own challenges for equipment and comfort. But our experience means we have seen it all, and we bring that knowledge to every service call. And when you choose E Dennis, you are choosing a team that treats neighbors like neighbors. That is what has kept us busy for three decades, and it is what keeps our customers calling us back year after year.
Ready to Get Started in Marietta?
Do not sweat through another hot Marietta day with a broken air conditioner. Our licensed technicians are available 24/7, ready to diagnose the problem and get your home comfortable again. Call (770) 758-0501 now or reach out through our contact page to schedule your AC repair today.