---
title: What is creosote and why is it dangerous?
description: Creosote is a flammable residue from burning wood. Buildup can cause chimney fires.
url: "https://unitedhomeservices.com/docs/what-is-creosote-and-why-is-it-dangerous/"
updated: "2025-07-07"
category: "Chimney Sweeping & Repair"
---

# What is creosote and why is it dangerous?

Creosote is a flammable residue from burning wood. Buildup can cause chimney fires.