Last updated: September 24, 2026
What affects the price
Fireplace pricing depends on your specific setup. If you already have a gas line or a chimney in place, the work is much simpler and cheaper. Installing from scratch requires more labor, including framing, venting, and finishing work with stone or tile. The type of unit—whether it is gas, wood, or electric—also changes the budget significantly. Larger units or custom hearth designs naturally add to the cost compared to basic inserts. We can discuss your project details and get exact pricing confirmed free on the call.
Summer might seem unusual for fireplace work, but it is actually the most efficient time to renovate. Contractors are often less busy, meaning you get more attention and faster installation times. By tackling this project now, you skip the waitlists that pop up once the temperature drops. You will be fully prepared well before the first frost arrives.
Frequently asked in St. Louis
What's the average cost to install a fireplace in St. Louis?
Can I install a fireplace myself in St. Louis?
How do you install a fireplace in St. Louis?
Professionals begin by preparing the installation area and setting up the firebox. They then expertly install the chimney or venting system, ensuring it meets all code requirements for safe exhaust. Proper clearances from combustible materials are maintained, and the entire system is tested for efficiency and safety before completion.
How much does it cost to install a fireplace?
Do fireplaces need to be professionally installed?
What is the 2 + 10 rule for fireplaces?
The 2+10 rule is a safety standard for chimney height: the chimney must extend at least 2 feet higher than any part of the building within a 10-foot horizontal radius. This is crucial for ensuring proper draft and preventing smoke from re-entering the house. Pros adhere to this to ensure safe and efficient operation.
Also serving nearby: O Fallon · Springfield · Columbia · Champaign · Peoria
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: Soulard, The Hill, Central West End, Tower Grove South, Lafayette Square — and every surrounding area.
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