Fireplace insert installation cost — Thornton, CO

Last updated: September 24, 2026

What affects the price

When you budget for a new fireplace, the final number depends on several moving parts. Choosing between a simple electric insert and a complex gas or wood-burning setup changes labor needs significantly. If your home already has a chimney or gas line, costs stay lower. If we need to run new venting, cut into walls, or add custom stonework, the labor and material requirements increase. Every home layout is unique, and we look at your specific space to provide a plan. Exact pricing confirmed free on the call.

About this service

This involves retrofitting a new, efficient firebox into an old masonry fireplace. The cost depends on the type of fuel—gas, wood, or electric—and the work required to prepare the existing chimney. We assess your chimney’s condition to determine the final scope of work. Exact pricing confirmed free on the call.

Fall is when most homeowners start thinking about their fireplaces again. As the air gets crisp, our phone lines get busy. If you want to have your fireplace ready for the holidays, try to reach out as early as possible. Getting your installation done in early autumn ensures you are ready for the first frost without any stress.

Frequently asked in Thornton

Also serving nearby: Westminster · Denver · Arvada · Lakewood · Boulder

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More on this: NFPA heating safety — heating equipment fire data.

Service area details

Serving all of Thornton — population 144,922; about 3,970 residents per square mile across 36.5 sq mi. ZIP codes covered include 80241.

Neighborhoods served in Thornton: Carpenter Ranch, Cherry Creek, Eastlake, Lochbuie, Northglenn, Westminster — and every surrounding area.