1. Are You Certified by NADCA?

The National Air Duct Cleaners Association (NADCA) sets the industry standard for cleaning HVAC systems. Hiring a NADCA-certified company ensures that technicians adhere to best practices and have received proper training. This certification is a sign of professionalism and expertise.



HVAC Cleaning Technologies is proud to be NADCA-certified and to have served the Atlanta area since 1999. Every job we do is handled by a certified technician.

To better understand NADCA's role in air duct cleaning, read more about NADCA certification standards.

2. What Is Your Cleaning Process?

A reputable company should be able to explain its cleaning process in detail. They should use specialized equipment, such as high-powered vacuums and brushes, to thoroughly clean your ducts. Additionally, they should inspect your system both before and after cleaning to ensure that all contaminants are removed.



Be cautious of companies that offer a quick fix or use vague terms to describe their process. A thorough air duct cleaning typically takes several hours and involves cleaning all components of your HVAC system.

3. Can You Provide References or Reviews?

Ask for references from previous customers or look for online reviews. A trustworthy company will have positive feedback and be willing to share it with you. This can give you insight into their reliability and quality of work.



We’re grateful to have earned hundreds of positive reviews from customers across the Atlanta area. You can read more on our customer testimonials page.

If you're in Forsyth County, here’s an example of our Cumming air duct cleaning services.

4. Do You Provide a Written Estimate?

Always request a written estimate before any work begins. This should detail the scope of work, the cleaning process, and the total cost. Be wary of companies that provide vague estimates or refuse to put their pricing in writing.



At HVAC Cleaning Technologies, we always provide a detailed written quote, and we stand by it. No hidden charges. No bait-and-switch.

5. What Equipment Do You Use?

Professional air duct cleaning requires equipment built for the job. Ask about the tools and machines the company uses. They should have truck-mounted vacuums, rotary brushes, and negative air machines.



We use American Caddy Vac Power Vac trucks with 14,000 CFM of suction—nearly five times more than many competitors. This ensures a deep, thorough clean every time.

Learn how our residential air duct cleaning process uses these tools effectively.

6. Are Your Technicians Trained and Experienced?

Inquire about the training and experience of the technicians who will be performing the work. They should have specific training in air duct cleaning and be knowledgeable about various HVAC setups, from older units to modern high-efficiency systems.



All our lead technicians are ASCS-certified and have extensive experience cleaning a wide variety of systems. You’ll always have a certified pro on-site.

7. Do You Offer a Guarantee or Warranty?

A reputable company should stand behind its work. Ask if they offer any guarantees or warranties on their services. This provides peace of mind and ensures that any issues will be addressed promptly.



We guarantee our work. If something’s not right, we’ll fix it.

8. Will You Provide Before-and-After Photos?

Request before and after photos of your ductwork. This allows you to see the results of the cleaning and proves the job was done thoroughly. A reputable company will be happy to provide visual proof, and you should expect it as part of your service.



Want to protect yourself from bait-and-switch tactics? Learn what to avoid by reading our guide on discount air duct cleaners.

9. Do You Carry Liability Insurance?

Ensure that the company has liability insurance to protect your property in case of any damage during the cleaning process. This is a basic industry standard and shows the company values your home.



You can verify a business’s status and complaint history by visiting the Better Business Bureau website.

Conclusion

By asking these questions, you can choose a reliable air duct cleaning service that meets your needs and expectations. The goal is simple: improve your home's indoor air quality and help your HVAC system perform better, longer.



If you’re ready for cleaner, healthier air in your home, schedule your cleaning today with HVAC Cleaning Technologies. We’ve been helping Georgia homeowners breathe easier since 1999, and we’d love to help you too.