Chimney Liner Installation

New Chimney Liner Installation — Safety From the Start

Whether you have an unlined chimney (common in pre-1940 homes), are installing a new fireplace insert, or converting from one fuel type to another, proper liner installation is essential for safety. At Chimney Repair Group, we install chimney liners designed to match your specific appliance and usage requirements.

Why Your Chimney Needs a Liner

Building codes require chimney liners for all fuel-burning appliances, and for good reason. Without a liner: combustion gases (including carbon monoxide) can leak through mortar joints into living spaces, heat can transfer through the chimney wall to combustible framing, chimney deterioration accelerates from direct contact with acidic flue gases, and proper draft cannot be maintained. A liner is not optional — it's a safety necessity.

Liner Types for Every Application

316Ti stainless steel is our top recommendation for most installations. It handles all fuel types and lasts 25-50 years. Aluminum liners are a cost-effective option for gas-only applications. Cast-in-place liners create a seamless, insulated flue ideal for irregular chimneys or when maximum flue diameter must be maintained.

Proper Sizing Matters

A liner must be correctly sized for your specific appliance. Too large and gases cool too quickly, causing poor draft and excess condensation. Too small and the appliance can't vent properly, creating dangerous backpressure. We calculate the correct size based on your appliance BTU rating, chimney height, and configuration for safe, efficient operation.