HVAC Repair & Replacement for Homes & Businesses in Kennesaw, GA

HVAC problems can happen anytime. From repairs to full system replacement, get HVAC service backed by 24/7 emergency support, professional guidance, and dependable solutions to help restore your comfort as quickly as possible.

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AC Repair

Heating Repair

Duct Cleaning

Water Heater

Air Quality

AC Repair

Heating Repair

Duct Cleaning

Water Heater

Air Quality

What Can We Do For You Today?

      EXCELLENT  
   Based on 531 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Justin Mercure 
 
 
 
 Trustindex verifies that the original source of the review is Google. They were very thorough.  Provided details and photos of units conditions.  Explained conditions based on age and gave good recommendations on continued maintenance and potential future replacement of one unit from 2005.
  
 
      Posted on Google  
   
   peggy garred 
 
 
 
 Trustindex verifies that the original source of the review is Google. Brian was my tech repair gentleman today. He was very professional, considerate and kind. I asked him several questions and he answered all of them with some great advice for me. I know he was here extra time just to make sure the job was done right and that I was completely satisfied. This is the first AC company that I have dealt  with where I feel like all that they do is fair and completely honest. I would highly recommend Top Tech for any work or maintenance contract with your AC units.
  
 
      Posted on Google  
   
   Raquel Cortez 
 
 
 
 Trustindex verifies that the original source of the review is Google. My experience with this company has been without complaint. Brian does our quarterly maintenance inspections and is always professional, thorough, and kind. Highly highly recommend if you want a hassle free experience and professional solutions!
  
 
      Posted on Google  
   
   Kristen Reed 
 
 
 
 Trustindex verifies that the original source of the review is Google. I had a gas fireplace that wasn't lighting and Lee fixed it. He was very helpful and pleasant. Any time I've used Top Tech they have always charged a fair price and never tried to upsell.
  
 
      Posted on Google  
   
   Jenny Sarto 
 
 
 
 Trustindex verifies that the original source of the review is Google. I really appreciated how punctual, professional, and courteous Top Tech Mechanical Services was. They communicated clearly, explained everything I asked clarifications for, and made the process very easy. Their knowledgeable service and affordable pricing and not to mention a really really quick and efficient fix made the experience wonderful! I was even able to make the appointment over text!
  
 
      Posted on Google  
   
   Larry Hilliard 
 
 
 
 Trustindex verifies that the original source of the review is Google. Julio did a great job.  He excelled in all aspects.  As always, we continue to be long-time very satisfied customers of Top Tech Mechanical!
  
 
      Posted on Google  
   
   Maryland Guthas 
 
 
 
 Trustindex verifies that the original source of the review is Google. I really appreciated how punctual, professional, knowledgeable, and courteous Top Tech Mechanical Services was. The pricing was affordable, and the service was handled with care. I will definitely return for my next HVAC service.
  
 
      Posted on Google  
   
   Caroline Brown 
 
 
 
 Trustindex verifies that the original source of the review is Google. Five stars all the way for Top Tech Mechanical Services! These guys were fantastic from start to finish. Professional, knowledgeable, courteous, and genuinely great people to work with. They showed up in clean, professional vehicles, knew exactly what they were doing, and took great care while working in my home. What stood out most was how comfortable I felt having them there. That level of trust means a lot! It’s refreshing to work with people who clearly take pride in their business, their work, and how they treat customers. I wouldn’t hesitate to recommend Top Tech Mechanical Services to anyone needing HVAC work. Great people running a great business!
  
 
      Posted on Google  
   
   BHS 
 
 
 
 Trustindex verifies that the original source of the review is Google. Brian provided excellent service and communication.
  
 
  
  
 
     Verified by Trustindex  Trustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more

We Provide 24/7 Emergency HVAC Support When You Need It Most

HVAC issues don’t happen at the “right time.” They happen late at night, early morning, or right in the middle of your day.

Our team provides 24/7 emergency support by evaluating every after-hours call, prioritizing urgent situations, and offering honest guidance based on your needs. When appropriate, emergency dispatch is arranged to address critical HVAC issues.

System suddenly stopped working? Our team will evaluate the issue and recommend the right next steps.
Not getting proper cooling or heating? We’ll help determine the best solution.
Strange noises or airflow concerns? We’ll assess the problem and provide professional recommendations.

Our professional HVAC services are all about making things easy when unexpected problems arise.

Everything Your HVAC System Needs All in One Place

At Top Tech Mechanical, we handle everything related to your heating and cooling system. Whether it’s a quick fix or regular maintenance, our professional HVAC services are designed to keep your space comfortable all year.

24/7 emergency HVAC support
Emergency HVAC company for priority service evaluations and support
Complete HVAC contractor services for homes and businesses
Routine HVAC maintenance and servicing
System inspection and performance checks
Cooling and heating issue repairs
Airflow and efficiency improvement
Indoor air quality solutions
Duct cleaning and airflow cleaning services
HVAC service plans for regular care
Support for all types of HVAC systems

From small issues to full system care, our affordable HVAC services cover everything you need done right the first time.

Keeping Kennesaw Comfortable for Over 15 Years

We’ve proudly served our community for over 15 years, guided by three generations of skillset and accountability-led leadership. With more than 300 years of combined industry experience across our team, every project is backed by proven knowledge, craftsmanship, and dedication.

Not Just Repairs, We are a Complete HVAC Contractor!

We don’t believe in quick, temporary fixes. Our HVAC contractor services are focused on keeping your system running smoothly for the long term.

Detailed system checks to catch issues early
Proper servicing that improves performance
Repairs that actually last
Airflow and efficiency improvements

Whether you need maintenance, repairs, or a complete system replacement, our team delivers the best HVAC service you can count on.

It’s not just about fixing the problem; it’s about making sure it doesn’t come back.

Flexible Financing That Makes Comfort Easy

Pay Over Time,
Stay Comfortable Today

At Top Tech Mechanical, we believe you shouldn’t have to delay comfort because of upfront costs. Our flexible financing options let you fix or upgrade your HVAC system now and pay in simple monthly installments.

Quick and easy approval process
No heavy upfront payment
Simple, manageable monthly plans
Get the best HVAC services you need with flexible payment options.

Top Shelf Club –
Save Your Money!

With our Top Shelf Comfort Plan, you don’t have to worry about unexpected breakdowns or maintenance reminders. Everything is handled for you at a predictable monthly cost.

Residential plans from $14.99/mo. Commercial plans about $59/mo per system.

Regular maintenance visits included
Priority scheduling for qualifying service needs
Extra protection for repairs
Option to add upgrades like clean air solutions

Georgia's Trusted Team for the Best HVAC Service

15+ years of delivering dependable, affordable HVAC services for homes and businesses across Metro Atlanta
Recognized for premier HVAC services with certified expertise and consistent, high-quality work
24/7 emergency support with priority evaluation for urgent HVAC situations.
Every repair is backed by a full 1-year warranty, so you’re never left guessing
Large, experienced team delivering professional HVAC services for residential and commercial properties.
Complete HVAC contractor services with clear communication, honest pricing, and long-term solutions

What areas do you serve?

We proudly serve Kennesaw, Woodstock, Acworth, Marietta, Canton, Holly Springs, Roswell, Alpharetta, and surrounding Metro Atlanta communities. Call 678-487-9021 to confirm service availability for your specific location.

Are you licensed and insured?

Yes, we carry all required state and local HVAC licenses, general liability insurance, and workers’ compensation coverage. We can provide documentation upon request for your peace of mind.

Do you guarantee your work?

Yes, all repairs come with our workmanship guarantee. New installations include both manufacturer equipment warranties and our labor warranty. We stand behind every job we complete.

What makes Top Tech Mechanical different?

We’re a family-owned company with over 15 years of experience and 300+ years of combined team expertise. We’re certified Trane Comfort Specialists, offer upfront honest pricing, provide same-day service options, and prioritize customer satisfaction above all else.

What does the HVAC service include?

HVAC service includes inspecting the system, cleaning important parts, changing air filters, checking airflow, testing performance, and making repairs if needed. Many companies also provide HVAC contractor services, new installations, and HVAC service plans to help keep your system in good shape.

Do you offer financing options?

Yes, we offer flexible financing plans through approved lenders with quick approval processes. This makes comfort affordable without high upfront costs, allowing you to enjoy efficient heating and cooling with manageable monthly payments.

What are your service hours?

We’re available 24/7 for emergency service calls. Our regular business hours are Monday through Friday, 8:00 AM to 8:00 PM EST. Saturday and Sunday emergency-only service available. Call 678-487-9021 anytime for immediate assistance.

What payment methods do you accept?

We accept cash, checks, all major credit cards (Visa, MasterCard, American Express, Discover), and offer financing through approved lenders for qualified customers.

Can I trust your technicians in my home?

Absolutely. All technicians pass background checks, maintain required certifications, receive ongoing training, wear uniforms and ID badges, respect your home with shoe covers and drop cloths, and maintain professional conduct always.

What kind of HVAC service do I need after renovations?

After home renovations, your HVAC system should be inspected to remove dust, check airflow, and make sure everything is working properly. HVAC contractor services can also confirm that your system is the right size for your updated home and recommend any needed changes.

Where can I schedule an HVAC service?

You can schedule an HVAC service by calling a local HVAC company or booking an appointment through its website. Many companies also offer HVAC service plans, making it easy to schedule regular maintenance and keep your system running smoothly.

How much does it cost for a new HVAC system and why?

The price of a new HVAC system depends on the size of your home, the type of system, energy efficiency, and installation needs. HVAC servicing costs can also vary depending on the work required. Many companies offer affordable HVAC services and financing options to help make the investment easier.