Fireplace Conversion

Fireplace Conversion in the Seattle Area, WA.

You already have the hard part: a firebox and a flue. Converting a wood fireplace to gas uses both, and turns something you light twice a year into something you use.

The Opening Is Already There

Converting Is Cheaper Than Installing, Because the Masonry Exists.

An open masonry wood fireplace is a lovely thing that most people stop using. It takes twenty minutes to get going, it has to be cleaned out afterwards, and while it is not lit the open flue is a hole in the house that costs you heat all winter. Converting it to gas is popular here for exactly that reason: it keeps the fireplace and removes everything about it that made it a chore.

The usual answer is a gas insert. It is built to sit inside the existing firebox, a flexible liner runs up the existing flue to vent it, a gas line comes to the unit, and the old damper is fixed open or removed because the liner now does that job. What you get is a sealed, efficient appliance behind glass, in the same opening, with a trim kit that closes the gap to the existing masonry. Where the firebox is too small or the wrong shape, a set of gas logs in the open firebox is the other route – simpler and far less efficient, and we will say which one your fireplace suits.

Converting does mean the fireplace stops being a wood fireplace, and that is worth saying plainly rather than discovering later. It also means the existing flue and firebox get looked at properly first, because a conversion is the wrong moment to find out the smoke chamber is in poor condition. If the masonry needs work, it needs it either way; the conversion is just when it surfaces.
Gas fireplace insert installed inside an existing brick firebox with a black trim surround

How We Work

How We Convert a Fireplace

Inspect the masonry, size the insert to the opening, line the flue, run the gas.

Full system inspection

We measure the existing firebox and check the condition of the flue and smoke chamber, because the opening you have decides which units will physically fit and vent.

01

Define the Scope

You get the unit and its trim specified against your actual opening, the liner and gas run set out, and any masonry repair the inspection found priced separately rather than folded in.

02

Execute the Repair

A liner run up the existing flue, the gas line brought to the unit, the insert set and connected, the damper resolved, and the trim fitted to the existing masonry.

03

Verify & Document

We operate the unit, confirm the venting draws and terminates correctly, and hand over photographs of the liner and connections before the trim went on.

04

Our Projects

Real WORK. REAL Results.

See how we’ve helped homeowners across Seattle and surrounding areas solve chimney, roofing, and masonry problems with clear scopes and lasting repairs.

Standing seam metal roof with ridge cap

Standing Seam Metal Roof Replacement & Structural Integration in Seattle, WA

Seattle, WA

Brick chimney on residential home exterior

Structural Chimney Rebuild & Masonry Restoration in Sammamish, WA

Sammamish, WA

Indoor gas stove fireplace installation

Freestanding Gas Fireplace Installation in Mercer Island, WA

Mercer Island, WA

Why Chimneyz

We Check the Chimney First

A conversion gets installed inside masonry that somebody should have looked at. Because chimneys are our main work, that inspection happens before the unit is ordered rather than when the liner will not go down – and if the crown, the flashing or the smoke chamber needs attention, we can tell you what it costs instead of handing you a list.

GAF Certified Contractor

Factory-certified roofing installer with access to enhanced warranty coverage and proven materials.

GAF Certified Residential Roofing Contractor badge

BBB Accredited

Better Business Bureau accreditation with a commitment to ethical practices and customer satisfaction.

READY TO SOLVE THE FULL PROBLEM?

Get a Clear Inspection and the Right Repair Plan.

From chimney leaks and failing masonry to roofline issues and interior damage, Chimneyz helps homeowners identify the real source of the problem and fix it with one coordinated solution.

Technician inspecting a modern gas fireplace

CLIENT REVIEWS

Trusted by Homeowners the Pacific Northwest.

See how Chimneyz solves complex chimney, roofline, masonry, and restoration issues with clear scopes and high-quality execution.

FAQ

Fireplace Conversion FAQ

Converting keeps the fireplace and loses the firewood. Here is what it actually involves.
In most cases yes, and it is one of the most common things we are asked for. A gas insert goes into the existing firebox and a liner runs up the existing flue, so the masonry does not change.
No. Once an insert is in and the flue is lined for gas, the fireplace is a gas fireplace. That is the trade, and it is worth being sure about before the work starts.
An insert is a sealed appliance behind glass and is genuinely efficient. Gas logs sit in the open firebox and are mostly about the look, with much of the heat going up the flue.
Sometimes, and we check before the unit is ordered. A damaged smoke chamber or a crown letting water into the stack needs attention whether or not you convert – the conversion is simply when it comes to light.
It is fixed open or removed. Once a liner is running up the flue, the liner is doing the venting and a closing damper has nothing useful left to do.
CALL NOW