Gas fireplace insert installation cost

Looking for gas fireplace insert installation cost in St. Petersburg, FL? Call FireplaceInstallation Solutions for a contact a provider — no obligation. Licensed, insured certified fireplace pros serve St. Petersburg 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 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

The price varies based on the size of the insert, the condition of your existing chimney, and whether you need a new liner installed for proper venting. If your chimney requires significant repairs before the insert can be placed, that will also influence the total investment. We provide exact pricing confirmed free on the call.

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. Petersburg

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

What is the 2 + 10 rule for fireplaces?

The 2+10 rule is a safety standard ensuring chimneys are tall enough to vent properly. It typically requires the chimney to be at least two feet higher than any part of the building within ten feet. Pros ensure your installation adheres to this.

Can I install a fireplace myself in St. Petersburg?

How do you install a fireplace?

The process involves carefully positioning the fireplace unit, connecting it to a fuel source (gas or wood), and ensuring proper venting. Pros handle all necessary structural modifications, gas lines, and safety checks for a complete installation.

How much does it cost to install a gas fireplace insert?

Do fireplaces need to be professionally installed?

Yes, especially gas fireplaces, due to safety concerns with gas lines and venting. Professional installation in St. Petersburg ensures everything is up to code and functions safely, preventing potential risks to your home and family.

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