Frequently Asked Questions

Certified NADCA members follow strict National Standards, utilizing source removal methods to thoroughly clean your entire HVAC system. This process is designed to effectively eliminate contaminants without causing any damage to your AC components. All airborne particles and debris removed during cleaning are safely contained using advanced HEPA-filtered vacuum equipment, ensuring a clean and controlled process. NADCA-certified professionals are also held to a mandatory code of ethics, committed to serving customers with honesty, integrity, and adherence to established industry standards. Technicians certified by NADCA as Air Systems Cleaning Specialists (ASCS) and Ventilation Maintenance Technicians (VMT) demonstrate a high level of expertise and comprehensive knowledge in HVAC cleaning and remediation practices. Ongoing education is also a key requirement of NADCA certification, ensuring technicians stay up to date with the latest advancements in HVAC technology and cleaning methods. https://nadca.com/

Routine return air filter changes are the very first line of defense. The frequency depends on your environment. We offer a Maintenance Program to help keep your indoor air quality fresher throughout the year.

We proudly offer a 10% discount to our Military and First Responders. We also extend this 10% discount to our senior citizens, as well.

Green Duct Services is an Air Duct Cleaning Company with upwards of 20 years' experience. We are a small woman-owned business, based out of Brenham, Texas. We pride ourselves on offering the very best service from the very best technicians in the field. Our customers are our friends & our neighbors. We are a certified, licensed, bonded & insured company. We stand behind our work and guarantee customer satisfaction. If you're not completely satisfied with our services, we will make it right. We want to make sure that every customer, be it residential or commercial is completely happy with the service(s) we provided them.

We are open Monday through Friday 9:00am - 5:00pm. For after-hours questions, please use our 24/7 website chat or browse the FAQ page.

We are based in Brenham, Texas, proudly serving the Brazos Valley and surrounding areas. Our office address is 1802 Buchannan St. Brenham, TX 77833

We service an 80-mile radius around Brenham, including the Brazos Valley and beyond. If you’re unsure if you’re in our service area, feel free to reach out.

Yes! We provide free estimates for our services. Contact us to get started.

Yes, we provide services for both residential and commercial properties.