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A ductwork contractor or an HVAC technician handles ductwork projects, delivering efficient airflow, safer installations, and cleaner indoor air


Ductwork contractors offer ductwork design, installation, replacement, or repairs to keep conditioned air moving efficiently.
Main quote factors include system size and layout, vent placement, insulation needs, and code compliance requirements.
Upgrading or sealing ducts improves energy efficiency and supports healthier indoor air by reducing leaks and contamination.
Hiring a qualified pro reduces mistakes and delays, ensures testing and verification, and often includes warranty protection.
Verify training, certifications, license, insurance, and references before you choose a contractor or technician.
This article was created using automation technology and thoroughly fact-checked and edited by HomeAdvisor Editor Ryan Noonan.
If you are asking who does ductwork, the answer is ductwork contractors and HVAC technicians. Hiring a pro matters because correct sizing, sealed connections, and code-compliant work improve energy efficiency, airflow, and indoor air quality while protecting your HVAC system.
Before hiring, ask about training, HVAC certifications, license and liability insurance, code knowledge, references, timeline, pricing method, and whether the work includes a warranty or guarantee.
Hiring a specialized ductwork contractor brings focused, day-to-day experience on duct systems. These pros complete precise, safe work that supports energy savings and healthier air. Purpose-built equipment and adherence to required regulations help prevent errors, delays, and costly rework.
Benefits include:
Access to professional ductwork tools and equipment
Proper sizing and sealing for better HVAC efficiency
Enhanced indoor air quality with fewer leaks and contaminants
Compliance with building codes and industry standards
Faster completion with fewer mistakes and delays
Potential warranty or guarantee on completed work
Everyday experience working on duct systems only
Sealed connections to prevent air leaks
Testing for airflow and proper operation after installation
Guidance to keep ducts performing well over time
If you’re unsure about tackling ductwork issues yourself or want to ensure everything is done to code, you might want to consider a ductwork repair pro near you to ensure the job is done safely and efficiently.
While ductwork contractors focus primarily on ducts, HVAC technicians handle the entire heating, ventilation, and air conditioning system. They understand how duct layout and sealing interact with equipment, which helps improve overall performance and efficiency. They also diagnose airflow issues or inefficiencies caused by faulty components.
Choose a ductwork contractor for duct design, installation, or duct-specific repairs. Choose an HVAC technician when you want broader system assessment and optimization. Confirm experience with your duct type.
Here is how pros plan, install or replace, and verify ductwork for reliable performance:
Planning and assessment: Discuss your HVAC goals, home layout, and comfort needs. The contractor calculates duct size and layout, reviews vent placement, and evaluates insulation and ventilation requirements.
Installation or replacement: The contractor cuts and assembles duct sections, then seals every joint and connection to prevent air leaks. They use specialized tools and materials to connect and insulate securely.
Testing and wrap-up: After installation, they test the system for proper operation and code compliance, check for leaks, measure airflow, and share maintenance tips to keep everything running smoothly.
Ductwork installation averages $1,250, with homeowners paying between $450 and $2,200 on average. Labor represents 60% of project costs, with pros charging between $50 and $110 per hour. Total costs depend on the size of your ductwork system, accessibility, insulation, and other factors.
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