Upgrade Your Existing Fireplace
If you've got an old wood-burning fireplace that's more drafty than delightful, a gas insert is the fastest way to turn it into something you'll actually use. A gas insert slides into your existing firebox and vents through the chimney you already have, sealing the opening and replacing that open, inefficient hearth with a high-performance heating appliance. The result is instant fire at the push of a button, real radiant warmth, and no more hauling logs or scooping ash.
Modern gas inserts deliver efficiency ratings above 80%, which means most of the heat they produce stays in your home instead of escaping up the flue. Many models come with built-in fans, thermostatic controls, and remote-start options—features that make it easy to keep a room comfortable without adjusting the thermostat on your central system. Styles range from traditional log sets behind classic doors to contemporary linear burners with clean glass fronts.
WilliamSmith Fireplaces handles the entire process, from measuring your existing firebox to coordinating gas-line work and completing the final installation. Our technicians know the ins and outs of Lowcountry chimneys, so you can trust the job will be done right.
Why Choose a Gas Insert?
Seal Your Drafty Fireplace
A gas insert closes off an inefficient open firebox, stopping heat loss and cold drafts.
80%+ Efficiency Ratings
Most of the heat stays in your room instead of escaping up the chimney.
Fits Your Existing Firebox
Inserts slide into your current fireplace opening — no major construction needed.
Thermostatic & Remote Control
Set your ideal temperature and let the insert maintain it, or fire it up from the couch.
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Visit our showroom to see gas inserts burning live, or request a project proposal to get started.
Let our team help you find the perfect fireplace for your home.