EXCELLENT Based on 403 reviews Posted on Christopher KrolTrustindex verifies that the original source of the review is Google. ABSOLUTELY the BEST HVAC company I have ever dealt with. I have replaced multiple systems in the past and I could not have asked for a better experience! Their customer service is superior and they care about the customer. I had an emergency HVAC RTU replacement at one of my businesses and from the time I sent the email requesting a quote, I received a call back within minutes. Tommy their Service manager is one of the best and offered multiple solutions and reached out to his network of dealers to provide the best and most timely option for the replacement with very little to no interruption to the business. He was EXTREMELY knowledgeable as was their entire team. Peggy and Kevin are the owners of the company and they worked diligently, communicated professionally, and ultimately worked me into their already hectic schedule. Both of them communicated personally throughout the entire process to make sure the project was up to my satisfaction. UNBEATABLE customer service!!! Julio and one of his team leaders onsite were extremely professional and knowledgeable. The old unit was removed and the crane operator clearly marked off the area so as to not interrupt customers. On installation day, the crew worked extremely hard, efficiently, kept everything neat/safe, and treated our business with respect. They even stayed afterwards to make sure I understood how to use the new system and answered all my questions. The system has had no issues since installation documenting the quality of their work. We are thankful that we met this company and will absolutely recommend them to our neighbors and fellow business owners. They earned a customer for life. HIGHLY RECOMMEND!Posted on Kaitlin ThomasTrustindex verifies that the original source of the review is Google. Very fast and came very last minute. Would recommend!Posted on Luis MoralesTrustindex verifies that the original source of the review is Google. The team did an excellent job cleaning out my vents ! My house smells cleaner now it’s crazy!!Posted on David OverdorfTrustindex verifies that the original source of the review is Google. Prompt, courteous, and professional service.Posted on Catherine HickeyTrustindex verifies that the original source of the review is Google. Stuck with us until he figured out the problemPosted on Ray JohnstonTrustindex verifies that the original source of the review is Google. I had a recent fantastic experience with TopTech . They showed up quickly and right on time, carried out a very thorough evaluation of the problem, and walked me through everything in a way that was easy to understand. What stood out most was their professionalism—no pushy sales tactics, just honest answers and genuine patience in addressing all of my questions. After shopping around, I found their pricing to be better than competitors, and it was clear they weren’t trying to upsell unnecessary work. You can tell the people running this business are fair, honest, and truly care about their customers. I highly recommend them to anyone looking for reliable HVAC service or a new system purchases.Posted on Shannon BabcockTrustindex verifies that the original source of the review is Google. Top Tech Mechanical HVAC Services is truly top-notch! They came out quickly and handled everything in a very timely manner. Their technicians are honest, knowledgeable, and professional without any high-pressure sales tactics. I really appreciated that they provided options to fit my budget while still ensuring quality work. It’s clear this family-owned and operated business cares about their customers. I would highly recommend them to anyone needing HVAC services!Posted on Mike HollowayTrustindex verifies that the original source of the review is Google. Timely repair and service.Verified by TrustindexTrustindex 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
What can we do for you today?
Why Choose Top Tech Mechanical
Licensed & Trusted HVAC Experts Serving Metro Atlanta
At Top Tech Mechanical, we’ve proudly served the Atlanta community for over 15 years, delivering reliable heating and cooling solutions for both residential and commercial needs. Founded on family values and built on decades of hands-on experience, we treat every customer like part of our own family. From AC repairs and upgrades to new system installations, maintenance, and indoor air quality solutions, our skilled technicians handle projects of every size with care, transparency, and craftsmanship you can trust.
What Sets Us Apart
Same-day service available with fully stocked trucks ready to resolve most issues on the spot
Licensed, insured, and trained professionals committed to quality and accountability
Transparent menu pricing with no surprises
Repairs made by LICENSED Professionals
Available 24/7 — call, text, or schedule online anytime
Service Overview
Diagnostic Visit: $89.99 (waived with approved repair)
Repair Costs: Starting at $145 (covered under our Protection Plan)
Service Time: Average completion in 30 minutes to 3 hours
Check our real-time availability and book your appointment online today — or call/text us at 404TOPTECH for immediate assistance.
Our Services
RTU Replacement
At Top Tech Mechanical, we understand that effective RTU replacement is essential for maintaining a comfortable and energy-efficient environment in your commercial space. Our expert technicians are trained to handle the complexities of rooftop unit installations and replacements, ensuring your HVAC system operates at peak performance. Whether you’re upgrading an outdated unit or replacing a failed system, we provide comprehensive solutions tailored to your specific needs.
RTU Replacement in Atlanta, GA
As a leading provider of RTU replacement services in Atlanta, GA, Top Tech Mechanical is dedicated to helping local businesses enhance HVAC efficiency. Our team understands the unique demands of the Atlanta climate, allowing us to recommend the most suitable RTU systems for your facility. We take pride in delivering exceptional service and reliable installations, keeping your commercial environment comfortable throughout the year.
ARTU Replacement Cost
Understanding the RTU replacement cost is crucial for any business planning to upgrade its HVAC system. Several factors influence the total cost, including:
Type and size of the unit
Installation complexity
Necessary modifications to existing ductwork
At Top Tech Mechanical, we provide transparent pricing and detailed estimates, ensuring you have a clear understanding of the investment required for your RTU replacement.
RTU Filter Replacement
Regular maintenance, including RTU filter replacement, is essential for maximizing the lifespan of your rooftop unit. Dirty or clogged filters can lead to decreased efficiency and higher energy costs.
Our team at Top Tech Mechanical offers routine maintenance services, including filter replacements, to keep your RTU running smoothly and efficiently. We can also help you select the right filters to optimize your system’s performance.
RTU Compressor Replacement
When it comes to RTU compressor replacement, timely intervention is crucial to avoid costly downtime. A failing compressor can lead to a complete system breakdown, disrupting your business operations.
Our skilled technicians at Top Tech Mechanical are equipped to diagnose compressor issues and perform swift replacements, ensuring your HVAC system remains operational and efficient.
RTU Replacement Scope of Work
Our RTU Replacement Scope of Work outlines the comprehensive services provided during an RTU installation or replacement:
Initial Assessment – Evaluate your current system to determine needs.
Replacement Recommendations – Suggest suitable RTU units for your facility.
Detailed Installation Procedures – Ensure proper setup for optimal performance.
Post-Installation Inspections – Verify system efficiency and reliability.
Our team ensures all aspects of the replacement process are covered, guaranteeing minimal disruption to your business operations.
ARTU Heat Exchanger Replacement
A malfunctioning heat exchanger can significantly impact your RTU’s efficiency and safety. At Top Tech Mechanical, we specialize in RTU heat exchanger replacement, using high-quality components to restore your system’s performance. Our experienced technicians are trained to identify heat exchanger issues promptly and execute replacements to ensure your system operates reliably.
RTU Drain Pan Replacement
RTU drain pan replacement is a critical aspect of maintaining your rooftop unit’s efficiency. A damaged or clogged drain pan can lead to water damage and mold growth, posing risks to your property and health. Our team offers thorough inspections and replacement services to keep your RTU functioning properly and prevent potential issues.
Modbus RTU Replacement
For businesses utilizing advanced HVAC controls, Modbus RTU replacement is an essential service. This communication protocol is crucial for the operation of your HVAC systems, allowing for efficient control and monitoring. At Top Tech Mechanical, we provide expert services in Modbus RTU replacement, ensuring your systems communicate effectively and operate seamlessly.



