Fireplace Services

Installing a gas fireplace is where good craftsmanship is invisible and bad craftsmanship is permanent. The unit you see is the easy part; the venting geometry, the gas-train sizing, the framing clearances, and the termination placement are what decide whether you get twenty quiet years of clean heat or a callback every winter. Prime Chimney Experts installs gas fireplaces and direct-vent inserts as a national specialty, and we hold the same engineering discipline whether the job is a builder-grade insert or a wide linear ribbon-burner meant to anchor a room.

We start before we touch a tool, with a load and venting plan. Direct-vent and sealed-combustion units live or die by their vent run — every elbow, every foot of rise, every inch of horizontal travel changes the restrictor-plate setting and the draft. We size the coaxial or co-linear pipe to the install manual's vent table, set the flue restrictor to your elevation and run length, and choose a termination — flush, snorkel, or high-wind hood — that won't nuisance-trip in a gusty location. Getting this right on paper is why our installs burn clean from the first light instead of getting "tuned" for three seasons.

The gas side is engineered, not improvised. We size the flex connector and CSST to the appliance BTU load, install the code-required sediment trap ahead of the shutoff, add the bonding clamp on corrugated stainless tubing, and pressure-test the whole drop with a manometer before we ever introduce flame. For inserts dropping into an existing masonry firebox, we run a dedicated, correctly-sized liner from the appliance collar to the cap — a true positive connection — rather than venting into an open flue that condenses and back-drafts. That single decision is the most common difference between a premium install and a cheap one.

Framing and finish get the same attention. Zero-clearance and ventless fireboxes are framed to the manufacturer's combustible clearances exactly — we don't shave them — and the hearth extension and surround meet code projection. We seal the glass front and its barrier gasket so the unit holds its negative-pressure draft, fit the surround and louvers cleanly, and on safety-screen-required units we install the ASTM F2972 barrier. Then we commission: manometer-verify inlet and manifold pressure, set high-low flame-height calibration, run the blower and snap-disc, and complete an ambient CO check during operation.

We install the full range — direct-vent sealed inserts, vent-free fireboxes with ODS-protected log sets, see-through and two-sided units for room dividers, freestanding direct-vent gas stoves, and premium linear contemporary fireplaces with glass or fire-glass media. We also handle the controls homeowners actually want: thermostatic remote and receiver kits, millivolt wall thermostats, smart Wi-Fi modules, and battery-backup packs so the unit lights during an outage.

What you're buying from a national premium installer isn't just the appliance going in — it's the certainty that it was sized, vented, gassed, and commissioned by someone who treats the manual as the minimum, not the suggestion. We document the venting plan and the commissioning readings, leave the install clean, and stand behind it. A gas fireplace should be the warmest, quietest, most reliable thing in the room.