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Mountain View · Residential Dryer Exhaust Cleaning Inspection

Dryer Vent Cleaning & Transition Duct Upgrade - Mountain View

Professional dryer vent cleaning and fire-rated transition duct replacement in Mountain View, improving safety and airflow efficiency.

Completed June 9, 2026

Interior view of dryer vent system during inspection showing ductwork and connections
Our team completed a comprehensive dryer vent cleaning and inspection service for a residential home in Mountain View, California. During our initial assessment, we identified a non-compliant foil transition duct connecting the dryer to the main exhaust system. These foil ducts are particularly problematic as they lack fire rating and are prone to collapse, punctures, and restricted airflow - creating both safety hazards and performance issues. The cleaning process involved a thorough removal of lint accumulation throughout the entire duct system using professional rotary brush equipment and compressed air techniques. We paid special attention to areas where lint tends to collect, including bends, joints, and the exterior termination point. The main exhaust duct showed typical residential lint buildup that required systematic cleaning to restore proper airflow. Following the cleaning, we replaced the problematic foil transition duct with a UL 2158A-listed fire-rated transition duct from Innovat. This rigid aluminum transition duct meets current building code requirements and provides superior durability compared to flexible foil alternatives. We secured both ends with proper tape sealing and hose clamps to ensure an airtight connection that prevents lint accumulation at joints. The completed service restored optimal dryer performance while significantly improving fire safety compliance. The new fire-rated transition duct will resist punctures and maintain its shape over time, preventing the airflow restrictions common with foil ducting. This Mountain View homeowner can now expect improved drying efficiency, reduced energy costs, and most importantly, enhanced safety for their family.

Project photos

8 photos

Non-compliant foil transition duct showing collapsed sections and potential puncture points that create fire hazards
This is a foil duct, which is not fire rated these ducks cause issues. They collapse on himself and they’re easily punctured with collar tabs or golf tees or bobby pins.
Dryer vent cleaning equipment and tools used for professional lint removal service
Lint accumulation removed from dryer vent system during cleaning process
Main dryer exhaust duct interior after professional cleaning showing restored airflow capacity
Exterior dryer vent termination point during service inspection and cleaning
Professional dryer vent cleaning in progress using rotary brush system
New UL 2158A fire-rated transition duct installed with proper tape sealing and hose clamp connections for safety compliance
This is a 2158 a fire rated transition duct from innovate I taped the ends to ensure a proper fit and to protect against damage as the hose clamp tightens

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