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Outdoor gas fireplace — St. Louis, MO

Looking for outdoor gas fireplace 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

An outdoor gas fireplace offers a clean, convenient way to add ambiance to your porch or deck without the mess of wood fires. You need one if you want a low-maintenance way to enjoy a fire on demand during chilly evenings. Factors such as weatherproofing, gas line distance, and finishing materials drive the final price.

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

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

All cities in Missouri →

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

Service area details

281,754residents
4,565per sq mile
—ZIP codes served

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.

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