Gas fireplace installation cost — St. Louis, MO

Last updated: September 24, 2026

What affects the price

When you look at getting a fireplace installed, several variables change the final bill. The biggest factor is the type of unit you choose—gas, wood-burning, or electric models all have different requirements. You also have to consider your home's existing ventilation and whether a chimney or direct-vent pipe needs to be built from scratch. If we need to run new gas lines or electrical circuits, that adds labor time and complexity. Your exact pricing is confirmed free on the call.

About this service

The final price for a gas fireplace depends on whether you have existing gas lines, the type of venting required, and the specific model you choose. If new gas lines or chimneys need to be installed, the project naturally becomes more involved. Exact pricing confirmed free on the call.

Many people overlook summer for fireplace installations, but it is actually an ideal time. Because demand is lower, you can often secure a time slot that fits your schedule perfectly. It gives us plenty of time to focus on the technical details of your installation, ensuring a smooth process before the busy season hits.

Frequently asked in St. Louis

Also serving nearby: O Fallon · Springfield · Columbia · Champaign · Peoria

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

Service area details

Serving all of St. Louis — population 281,754; about 4,565 residents per square mile across 61.7 sq mi.

Neighborhoods served in St. Louis: The Hill, Central West End, Tower Grove South, Soulard, Benton Park — and every surrounding area.