Cost of a gas fireplace insert — Knoxville, TN

Looking for cost of a gas fireplace insert in Knoxville, TN? Call GasFireplaceInsert Experts 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 estimating a gas fireplace project, several variables shift the final number. The type of unit—whether you choose a direct vent, vent-free, or an insert—plays a big role. You also have to account for the labor required to run new gas lines or update venting through your walls and roof. Customizing the surround, including stone, tile, or a new mantel, adds to the material costs. If you are converting an existing wood-burning fireplace, the complexity of the chimney liner installation will impact the total. Exact pricing confirmed free on the call.

About this service

Your total cost involves the appliance, venting materials, and the technician's time to ensure a safe, code-compliant installation. Prices change based on the BTU output and the efficiency rating of the model you choose for your space. We assess your home and provide an exact pricing confirmed free on the call.

Summer is the smartest time to plan a new fireplace installation or replacement. Because contractors are not dealing with the winter rush, you often have more flexibility with scheduling appointments. It is the perfect opportunity to renovate your fireplace surround or upgrade to a more efficient model while you aren't reliant on it for daily heat.

Frequently asked in Knoxville

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

The cost depends on the insert's size, features, and the complexity of the installation in your Knoxville home. Factors like brand and BTU output also play a role. A licensed, insured pro can give you a precise quote after seeing your fireplace. They'll consider your specific setup in the Old City or Bearden.

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

Absolutely. That's exactly what gas fireplace inserts are designed for. They fit into your current masonry or factory-built fireplace opening, offering a significant upgrade. This is a common project in many Knoxville neighborhoods. It's an efficient way to get the benefits of gas heat without a full rebuild.

What are the disadvantages of a gas fireplace insert?

While generally convenient, some find the flame less natural than wood. There's also the ongoing cost of natural gas or propane. However, for many Knoxville residents, the pros like efficiency and low maintenance far outweigh these minor drawbacks. They provide consistent heat for your home.

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

The 'best' insert really depends on your heating needs and aesthetic preferences in Knoxville. Consider the size of the room you want to heat and the look you're going for. A specialist can guide you through options like different flame styles and control systems. They'll help you find the right fit for your home in West Knoxville or South Knoxville.

What is the lifespan of a gas fireplace?

What are the disadvantages of a gas fireplace?

Compared to wood-burning fireplaces, gas units produce less of a natural wood-burning aroma and sound. They also rely on a fuel source like natural gas or propane, which has an ongoing cost. However, for convenience and consistent heat in Knoxville homes, they're hard to beat. Many find the ease of use a significant advantage.

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, Bearden, West Knoxville, South Knoxville, Old City, Sequoyah Hills — and every surrounding area.