Cost of fireplace installation

Looking for cost of fireplace installation in St. Louis, MO? Call FireplaceInstallation Solutions 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 start planning a fireplace installation, the final bill depends on a few major factors. Choosing between a simple electric unit, a gas insert, or a full wood-burning masonry build creates the biggest difference in cost. You also have to consider the existing setup of your home; running new gas lines or venting through a roof will naturally add labor hours compared to a straightforward swap. Finishing materials like custom stonework or mantel pieces also shift the total.

About this service

When you invest in a fireplace, you are paying for the unit, professional venting, and the labor to integrate it safely into your home’s infrastructure. Projects involving new gas lines or extensive wall modifications carry a higher price tag than simple replacements. We break down the expenses based on your specific space and safety requirements.

Most people do not think about fireplaces in the summer, which makes it the best time for a stress-free installation. You will likely find more convenient appointment times and faster project turnaround. It is the perfect window to handle masonry or venting work while the weather is dry and clear, keeping the process clean and efficient for your home.

Frequently asked in St. Louis

What's the average cost to install a fireplace in St. Louis?

The cost to install a fireplace in St. Louis varies depending on the type of unit, the complexity of the installation, and any necessary chimney or structural work. Factors like materials for the surround and hearth, and the venting system, also affect the price. A personalized quote from a local pro is the best way to determine cost.

Can I install a fireplace myself in St. Louis?

How do you install a fireplace?

Fireplace installation involves preparing the space, securing the fireplace unit, installing a safe and code-compliant venting system, and connecting gas lines if applicable. Pros in St. Louis meticulously follow all regulations to ensure a safe and functional installation.

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 generally states that a chimney must extend at least 10 feet above the point it penetrates the roof and be at least 2 feet higher than any part of the building within 10 feet. Always check current St. Louis building codes for specifics.

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

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