Converting a wood-burning fireplace to gas is one of the most popular upgrades in the Seattle area — you keep the fireplace you love and lose the wood, ash, and smoke. The cost depends mostly on whether you're adding a gas log set to the existing firebox or fitting a sealed insert. This guide covers real 2026 conversion pricing around Puget Sound and how to get an honest quote.
What a wood-to-gas conversion costs in Seattle
A gas log conversion — running a gas line and setting a log set in your existing firebox — runs about $299–$600. A full insert conversion, fitting a sealed, efficient gas insert into the opening, runs $600–$900. The gas-line run and the unit you choose set the final figure. Every conversion gets a free written quote first, a free second opinion, and price-match plus 10–25%.
Log set or insert — what's the difference
A gas log set drops into your existing open firebox and gives you real flame at the flip of a switch; it's the simpler, lower-cost conversion. A sealed insert is a self-contained unit that fits into the opening and vents efficiently, throwing far more heat into the room and losing less up the flue. For a home you heat with the fireplace, the insert usually pays back in comfort and efficiency.
Why homeowners convert in the Puget Sound
Wet Northwest firewood is a chore — it's heavy, it's dirty, and it smokes when it isn't fully seasoned. Our long heating season means a lot of fires, and a gas conversion removes the hauling and the ash while cutting the fire risk that comes with creosote buildup. It also solves the poor draft many older Seattle and Tacoma fireboxes have, since a sealed insert vents on its own terms rather than fighting a weather-worn flue.
How to get an honest conversion quote
A fair quote comes after someone checks your firebox, the gas-line route, and the flue condition. Ask whether a $299–$600 log set will give you what you want before stepping up to a $600–$900 insert conversion. A good company matches the option to how you actually use the fireplace and puts the unit and gas work in writing. If you've been quoted elsewhere, take our free second opinion — quotes are free and in writing with price-match plus 10–25%.
What Wood-to-Gas Fireplace Conversion Costs in Seattle (2026)
Real 2026 ranges for the Seattle–Tacoma–Everett area, with a free written quote before any work begins.
| Gas log set conversion | $299–$600 |
| Full sealed insert conversion | $600–$900 |
| Includes gas-line connection | in the quote |
Get a free quote
See our full chimney service pricing, or learn more about Wood-to-Gas Fireplace Conversion. You get a free written quote before any work begins — call 206-453-2045 or request your free quote online.