When to get in touch.
- A damaged or deteriorated flue identified during inspection
- Changing the appliance or fuel type
- A new insert that requires a compatible liner system
A considered starting point.
Understand the existing system
Evaluate the existing flue and identify the appliance requirements.
Define the right scope
Consider liner type, sizing, insulation where required, and connection details.
Plan the details
Coordinate installation with the appliance listing and applicable local requirements.
Before you decide.
A liner is part of a system, not a universal repair. A new liner does not correct an unstable chimney or every source of water entry. Discuss both internal and external findings before choosing work.
Your questions, answered.
Do all fireplace inserts need a new liner?
The required venting depends on the insert and the existing system. Many installations use a dedicated liner sized for the appliance. Follow the manufacturer’s instructions and the approved installation plan.
How do I know if my liner is damaged?
An appropriate inspection, often including internal video evaluation, can identify accessible defects. Symptoms alone do not show the condition of the entire liner.
Homeowner guidance: Chimney Safety Institute of America. Appliance installation and operation must follow the specific manufacturer’s instructions. Service scope and availability are confirmed before scheduling.
Editorial review: September 24, 2026 · Chimney St. Louis