Wood-burning to gas fireplace conversion cost

Looking for wood-burning to gas fireplace conversion cost in St. Louis, MO? Call WoodBurningFireplace Direct 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 are looking at wood fireplaces, the final cost depends on several moving parts. Choosing between a pre-fabricated insert and a custom masonry build is the biggest factor. You also have to think about venting requirements, the type of chimney lining needed, and the finish materials like stone or brick veneer. If your home needs structural modifications to meet current safety codes, that will add to the labor hours. We look at your specific setup to provide a clear path forward. Exact pricing confirmed free on the call.

About this service

Converting from wood to gas involves removing your old grate, installing a gas line, and fitting a new burner system. Factors that move the price include the distance from your gas main, the type of venting required, and the level of cosmetic finishing work needed. While costs vary based on your home's specific layout, projects typically start in the mid-hundreds and go up depending on the unit chosen. Exact pricing confirmed free on the call.

Frequently asked in St. Louis

Is it worth it to have a wood-burning fireplace in St. Louis?

What is the most efficient wood-burning fireplace?

Modern, EPA-certified wood-burning fireplaces and inserts are the most efficient options for St. Louis homes. These units are engineered to burn wood more completely, maximizing heat output and minimizing emissions. Choosing the correct size for your home and ensuring proper installation are vital for achieving optimal efficiency. A professional can guide you to the best models for your needs.

How expensive is a wood-burning fireplace in St. Louis?

Will a wood-burning fireplace heat a house in St. Louis?

A wood-burning fireplace can provide effective supplemental heat for a St. Louis home, warming specific rooms or zones and reducing reliance on central heating. While it may not be sufficient as the sole heat source for the entire house during harsh winters, its contribution to comfort and ambiance is substantial. Efficient models and inserts can significantly boost their heating capabilities. Discuss your heating needs with a specialist for personalized advice.

Are wood-burning fireplace inserts worth it?

Yes, wood-burning fireplace inserts are often a very worthwhile investment for St. Louis homeowners looking to improve their home's heating efficiency. They can transform older, less efficient open fireplaces into powerful heating appliances. This means more heat for your living space and less wasted energy. If your current fireplace is underperforming, an insert is a practical and effective upgrade.

What is the average cost of a wood-burning fireplace insert?

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

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More on this: EPA Burn Wise — efficient clean burning.