Cost of gas fireplace insert installed

Looking for cost of gas fireplace insert installed in Knoxville, TN? Call GasFireplaceInsert Services 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

The final price for a new gas fireplace depends on a few moving parts. First, you have to consider whether you are installing a unit into an existing chimney or creating a new opening in a wall, which adds labor. The type of venting required and the current proximity of your gas lines also play a big role in the complexity of the install. Aesthetic choices, like premium stone surrounds or remote-controlled flame features, will adjust the total as well.

About this service

When looking at the total cost of an installed gas fireplace insert, consider the cost of the unit itself plus the labor for gas piping, venting, and decorative finishes. You need this service if you want an all-in-one project completed by professionals who handle the heavy lifting and technical certifications for you. Exact pricing confirmed free on the call.

Many people think about fireplaces only in the cold, but summer is actually a great time to schedule an installation. Since demand is lower, you can often get your project finished without the long wait times seen during the peak winter months, making sure you are ready before the first frost arrives.

Frequently asked in Knoxville

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

The cost in Knoxville depends on the insert's size, features, and the complexity of installation. Factors like whether your existing fireplace needs work and the type of venting required will also play a role. We can give you a precise quote after assessing your specific setup.

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

Absolutely. Most existing wood-burning fireplaces in Knoxville are suitable for gas insert installation. The pros will check the condition of your current chimney and firebox to ensure a safe and efficient fit. It's a great way to get the benefits of gas without a full renovation.

What are the disadvantages of a gas fireplace?

Some homeowners find the flame less 'real' than a wood fire, and there's a slight loss of heat through venting. However, the convenience, cleaner burn, and lower maintenance usually outweigh these for many Knoxville residents. You also don't have to worry about storing wood.

What is the best gas fireplace insert for 2026?

Choosing the 'best' insert depends on your needs and the specifics of your Knoxville home. We work with a variety of quality brands and can recommend options based on your desired heat output, aesthetic preferences, and budget. It's best to discuss this directly with a pro.

What is the lifespan of a gas fireplace?

A well-maintained gas fireplace insert can last 15-20 years or more. Regular inspections and cleaning by a qualified technician in Knoxville are key to maximizing its lifespan and ensuring it operates efficiently and safely.

What are the disadvantages of a gas fireplace insert?

While generally efficient, some heat is lost through the venting system. The visual appeal of a gas flame might not satisfy everyone compared to a real wood fire. However, the ease of use and reduced upkeep are major advantages for many Knoxville homeowners.

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