Cost of gas fireplace insert installed

Looking for cost of gas fireplace insert installed in Knoxville, TN? Call GasFireplaceInsert Pros for a contact a provider — no obligation. Licensed, insured certified gas fireplace pros serve Knoxville and the surrounding area, and you'll get straight answers on timing and what affects the price.

Last updated: September 24, 2026

What affects the price

When you call to discuss a gas fireplace installation, several factors will shape the final number. The biggest variables include whether you are installing a new unit in a blank wall, replacing an existing fireplace, or needing extensive gas line and venting work to bring the space up to code. Choosing between a simple insert or a custom-built hearth with masonry or stone finishes also impacts labor time. Exact pricing confirmed free on the call.

About this service

When budgeting for an installed gas fireplace insert, consider the cost of the unit itself plus the labor for gas piping, venting, and finishing work. Simple installations are less expensive, while units requiring extensive retrofitting will cost more. Exact pricing confirmed free on the call.

Many homeowners ignore their fireplace during the summer, but this is actually the best time to schedule an installation. Since demand is lower, you will likely find more flexibility in scheduling crews. You can get the project finished and out of the way, ensuring your home is ready to go the moment the first chilly breeze arrives.

Frequently asked in Knoxville

What's the average cost of a gas fireplace insert in Knoxville?

The cost can vary quite a bit depending on the brand, features, and size of the insert you choose for your Knoxville home. Factors like the complexity of the installation and any necessary modifications to your existing fireplace will also affect the final price. Getting a personalized quote is the best way to understand the investment for your specific situation.

Can you put a gas fireplace insert in an existing fireplace in Knoxville?

Absolutely. That's one of the main reasons people choose gas fireplace inserts for their Knoxville residences. They're designed to fit directly into your current fireplace opening, transforming it into a more efficient and convenient heating source. The pros will assess your existing fireplace to ensure a proper and safe installation.

What are the disadvantages of a gas fireplace insert?

While generally convenient, some disadvantages include the need for a gas line, potential for pilot light issues, and the fact that you won't get the same crackling sound as a wood-burning fire. However, the ease of use and consistent heat often outweigh these minor drawbacks for many Knoxville homeowners.

What is the best gas fireplace insert for my Knoxville home?

What is the lifespan of a gas fireplace?

What are the disadvantages of a gas fireplace?

Similar to inserts, disadvantages include reliance on a gas line and the lack of a real wood fire sound. Some people also find the flames less visually dynamic than wood fires. However, the convenience and consistent, controllable heat are major advantages for many households.

Also serving nearby: Asheville · Chattanooga · Murfreesboro · Roswell · Sandy Springs

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More on this: CSIA gas appliance guidance — venting and inspection.

Service area details

198,162residents

2,007per sq mile

8ZIP codes served

Serving all of Knoxville — population 198,162; about 2,007 residents per square mile across 98.7 sq mi. ZIP codes covered include 37901, 37902, 37909, 37912, 37914, 37915, 37916, 37917.

Neighborhoods served in Knoxville: Downtown Knoxville, West Knoxville, North Knoxville, South Knoxville, Old City, Bearden — and every surrounding area.