--- title: "Range hood ducting & airflow service cost" description: "Bertazzoni range hood ducting and airflow service cost — one of the two cheapest rows on the site, and the one that ends most hood complaints." url: "https://bertazzonimiami.support/repair-cost/range-hood-ducting-and-airflow-service/" date_modified: "2026-08-27" --- # Bertazzoni range hood ducting & airflow service cost ### Why the appliance is usually innocent A hood is rated in a laboratory against a short, straight, rigid duct. Real kitchens rarely give it one. Add a long horizontal run, three elbows, a length of flexible duct that has been crushed behind a cabinet, a wall cap with seized flaps and a house tight enough that no air can get back in, and a hood that is mechanically perfect will clear almost nothing. **None of that is repaired by replacing the motor**, which is exactly why so many people end up doing that and getting the same result. ### What moves it Whether the duct is reachable. A damper at a wall cap is minutes; a crushed run inside a soffit is a different conversation and you will be told before anything is opened. ### What is included Airflow measured rather than judged, the run and the termination inspected, the damper freed or replaced, filters cleaned, and a written explanation of what the hood can actually achieve where it is. **Exact cost is confirmed after an on-site diagnostic.** What moves this figure Duct run, transitions, damper, make-up air, filters A large share end with no part fitted The cheapest honest answer to "it does not clear steam" The length and shape of the run Every elbow costs airflow and every foot of flexible duct costs more than a foot of rigid. A hood rated for a short straight run and given a long one with three bends is doing its best and it is not enough. Measuring that is the job. A backdraft damper stuck shut with grease, or a wall cap whose flaps have seized, stops a healthy hood dead. It is the single cheapest fix on this list and it is checked early for that reason. A powerful hood in a tight modern house has nowhere to draw replacement air from, and it will not move what it is rated to move. This is a real finding rather than an excuse, and it is explained rather than charged for. Baffle and mesh filters loaded with grease are a restriction. They are washable and it is worth knowing that before booking anybody, because sometimes that is the whole answer. Why the appliance is usually innocent A hood is rated in a laboratory against a short, straight, rigid duct. Real kitchens rarely give it one. Add a long horizontal run, three elbows, a length of flexible duct that has been crushed behind a cabinet, a wall cap with seized flaps and a house tight enough that no air can get back in, and a hood that is mechanically perfect will clear almost nothing. None of that is repaired by replacing the motor, which is exactly why so many people end up doing that and getting the same result. What moves it Whether the duct is reachable. A damper at a wall cap is minutes; a crushed run inside a soffit is a different conversation and you will be told before anything is opened. What is included Airflow measured rather than judged, the run and the termination inspected, the damper freed or replaced, filters cleaned, and a written explanation of what the hood can actually achieve where it is. Exact cost is confirmed after an on-site diagnostic. ### The fan sounds strong but the kitchen still fills with steam. Which page is mine? This one. A hood that sounds right and clears nothing is describing a duct problem almost every time — the motor is doing its job and the air is not going anywhere. ### Can I clean the filters myself? Yes, and please do — hot water, degreaser, and dry them fully before they go back. Baffle filters go in the dishwasher. Doing that every few weeks prevents most of what appears on both hood pages. ### Will you tell me my hood is fine and charge me anyway? We will tell you it is fine, and you will pay for the visit that established it and for whatever we corrected in the duct. What you will not get is a motor you did not need. --- **[Read full article: Range hood ducting & airflow service cost](https://bertazzonimiami.support/repair-cost/range-hood-ducting-and-airflow-service/)**