Gas Fireplace Insert Installation in St. Augustine, FL
Turn an old wood fireplace into an efficient gas heater.
- Family run
- Locally owned
- Licensed and insured
- Same-day service
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Request Received
Got it, thank you. Expect a call from the family to book your free inspection.
Or call us at (904) 943-7482
Short version
Gas fireplace insert installation sets a sealed, direct vent gas firebox into an existing wood fireplace. St. Augustine Chimney & Sons runs the intake and exhaust liners up the old chimney, connects and leak-tests the gas line, and fits the surround panel, all to the insert's installation manual.
Inspect First, Then Save 10%
Free check of the fireplace and chimney. Book within 72 hours for 10% off.
Why Homeowners Call Us Back
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Family run
The company is run by one family, so the people who price the job are the people who answer for it.
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Upfront, honest pricing
The price is on paper before we start. If something changes, we ask before doing more.
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Workmanship warranty
Our workmanship warranty backs every repair we complete.
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Licensed and insured
Licensed and insured, with an experienced crew on every roof and hearth.
Direct Vent Gas Insert Installation
A gas fireplace insert has a sealed glass front and two vent connections: one draws combustion air in from outside and the other sends exhaust out. In an old chimney, these run as two flexible aluminum liners or one coaxial liner up to a termination at the top. Direct vent gas insert installation follows the insert maker's manual for liner size and length.
Inserts are built to ANSI Z21.88, and gas connections follow NFPA 54 as adopted in the Florida Building Code, Fuel Gas.
Gas Insert Installation Steps
Gas insert installation starts with sweeping and inspecting the old chimney, since the liners will pass through it. We measure the opening and order the insert and liner kit. On the day, the liners are dropped from the top and capped, the gas line is run to the firebox, and the insert is set, connected and leak-tested.
Gas insert fireplace installation finishes with the surround panel and a first run with you to show the controls.
Choosing a Gas Fireplace Insert
A gas fireplace insert install depends on the opening's size and depth, the heat you want and the look you like. Some inserts suit masonry fireplaces only; others are listed for certain factory-built fireplaces. We check the listing before recommending a model.
What We Check For
- Opening too shallow
- Some inserts need more depth. We measure before choosing.
- Damaged old firebox
- An insert can cover a worn firebox if the chimney is sound.
- Prefab fireplace
- Only inserts listed for that unit can go in.
Parts and Materials We Use
- Direct vent gas insert
- Built to ANSI Z21.88.
- Aluminum or coaxial liner kit
- Run up the old chimney to a termination cap.
Repair or the Bigger Job
Request a Free Inspection in St. Augustine
- No-charge inspection, priced on paper
- Upfront pricing with no hidden fees
- Family owned and run
Request Received
Got it, thank you. Expect a call from the family to book your free inspection.
Questions We Hear Often
What are gas fireplace inserts?
Gas fireplace inserts are sealed gas fireboxes made to slide into an existing fireplace. They draw outside air and vent through liners run up the old chimney, and because the glass front is sealed, they send far more heat into the room than an open fireplace or a vented log set.
Signs This Work Is Due
A gas fireplace insert is a sealed gas firebox that slides into an existing fireplace. It draws air from outside and vents through liners run up the old chimney, so it heats the room instead of the flue. We size the insert, run the liners, connect the gas and finish the surround.
- An old fireplace that gives little heat
- Wanting gas convenience without a new build
- A wood fireplace you no longer use
- A worn gas log set you want to replace
What Sets the Price
- Insert size and features
- Blowers and remotes add cost.
- Chimney height and gas line run
- Longer runs take more work.
Proudly American
Owned and run by one St. Augustine family. Our experienced crew puts every estimate on paper and backs its repairs with a workmanship warranty.
Call Now (904) 943-7482Heat the Room, Not the Flue
Measuring the opening and checking the chimney for a gas insert is free.