Gas fireplace installation cost — St. Louis, MO

Looking for gas fireplace installation cost in St. Louis, MO? Call FireplaceInstallation Pros for a contact a provider — no obligation. Licensed, insured certified fireplace pros serve St. Louis and the surrounding area, and you'll get straight answers on timing and what affects the price.

Last updated: September 24, 2026

Local housing snapshot: St. Louis, MO

Population: about 293,000
Median year homes were built: 1938
Homes built before 1980: 86%
Owner-occupied homes: 45%

Older homes can mean different materials, wiring, venting or permit needs. Mention your home's age when you contact a provider.

Source: U.S. Census Bureau, American Community Survey 2019–2023 5-year estimates.

What affects the price

When you're looking at a new fireplace, the bottom line depends on a few specific things. First, are we working with an existing chimney or venting system, or does everything need to be built from scratch? The type of fuel matters too—gas, electric, or wood-burning units all carry different installation requirements. You also have to consider the finish work, like custom stonework, mantels, or drywall repairs around the unit. Labor complexity is the biggest factor here. We’ll get you the exact pricing confirmed free on the call.

About this service

The cost of installing a gas fireplace depends on whether you have an existing gas line, the type of venting required, and the labor needed for the enclosure. Simple upgrades are typically less expensive than complex projects involving new gas piping or structural changes. Many factors influence the final bill, including the unit size and the complexity of the masonry work. We provide exact pricing confirmed free on the call.

Installing a fireplace in the summer might seem unusual, but it is often the most efficient route. You avoid the peak-season rush, which usually means shorter wait times for an appointment. It is the perfect off-season project to ensure your home is ready long before the first chill of autumn hits. We can get the job done quickly while you focus on other home improvements.

Frequently asked in St. Louis

What are the options for gas fireplace service in St. Louis?

What is the cost for fireplace installation?

The cost for fireplace installation in St. Louis varies. It depends on the type of fireplace and the complexity of the installation. Factors like venting and gas line work are considered. You will receive a detailed quote when you call for an estimate. This will provide exact pricing.

Where can I find fireplace repair services in St. Louis?

What is the cost of a wood-burning fireplace installation?

The cost of installing a wood-burning fireplace in St. Louis can vary. It depends on whether you're building a new one or inserting one. Chimney construction and materials are significant factors. You'll get a precise quote after a site assessment. Call us to schedule yours.

What type of gas fireplaces are available?

Gas fireplaces come in various types, including inserts, freestanding units, and ventless models. Many offer realistic log sets and adjustable flames. They provide convenient heat and ambiance. Pros can help you choose the best type for your St. Louis home.

Can you help with wood fireplace installation costs?

What are outdoor fireplaces and their costs?

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

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