Fireplace Insert Installation

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Professional Fireplace Insert Installation Services

If your traditional open-masonry fireplace feels more like a heat thief than a heat source, you are not alone. Open fireplaces pull up to 80% of your home’s heated indoor air right up the chimney, leaving your room drafty and cold. A fireplace insert installation seals off that energy leak, transforming an inefficient firebox into an airtight, high-output heating engine.

Whether you want the instant push-button convenience of a gas conversion, the intense radiant warmth of an EPA-certified wood insert, or the automated efficiency of pellets, our certified technicians ensure a seamless, code-compliant installation.

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Fireplace Inserts: Gas, Wood & Pellet Compared

A fireplace insert is a heavy-duty steel or cast-iron heating unit that slides directly into your existing masonry firebox. Choose the fuel type that fits your lifestyle and heating goals:

FeatureGas Fireplace InsertsWood Fireplace InsertsPellet Fireplace Inserts
Best ForInstant heat, zero mess, effortless operation.Authentic crackle, intense heat, off-grid reliability.Automated thermostat control and eco-friendly biomass.
Heat Efficiency75%, 85% Efficient70%, 85% Efficient80%, 90% Efficient
ConvenienceWall switch, handheld remote, or smart thermostat.Manual fuel loading and fire starting.Auto-feed hopper runs for 12, 36 hours continuously.
MaintenanceLow, annual gas burner check.Moderate, ash clearing & annual flue sweep.Moderate, weekly hopper filling & ash pan clearing.
Venting SystemDirect Vent (dual flexible aluminum liners).Flexible 316Ti stainless steel insulated liner.Direct-Vent or specialized stainless pellet liner.
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Why Convert Your Open Masonry Fireplace?

Upgrading from an open masonry firebox to a modern insert provides immediate benefits to your home comfort and monthly utility bills:

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Our Precision Installation Process

Installing an insert requires far more than just pushing a steel box into a opening. We engineer the entire exhaust and fuel infrastructure for safety and peak performance:

Hearth & Flue Safety Inspection

We measure your firebox depth, width, and height, evaluating the structural integrity of your masonry chimney.

Dedicated Flue Relining

We run a custom-sized, continuous flexible liner down the full length of your flue, sealing it at the top with a heavy-gauge top plate and termination cap.

Utility Integration

For gas conversions, we run dedicated gas lines, install shut-off valves, and hardwire electrical connections or battery backups for blowers and igniters.

Insert Placement & Surround Fitting

We slide the insert into place, level the unit, connect the flue liner collar, and attach a custom decorative faceplate surround to cover any gap between the insert and your masonry.

System Calibration & Walkthrough

We perform gas pressure tests or test burns, test convective blower thermostats, and guide you through daily operation and controls.

Frequently Asked Questions

Can I install a fireplace insert into any existing fireplace?
Most healthy masonry fireplaces can accommodate an insert. The key requirement is having sufficient physical opening dimensions (width, height, and depth) and a chimney flue that can house the new dedicated vent liner. We perform precise measurements during our initial site consultation.
Yes, absolutely. Inserts cannot vent into a large, open brick chimney stack. They require a dedicated, correctly sized vent liner running from the top of the insert all the way to the top of the chimney. This ensures proper draft velocity and prevents toxic exhaust gas condensation.
A surround panel is a wide, finished metal trim plate that attaches to the front of the insert. It sits flat against your existing fireplace facing, seamlessly covering the gap between the edges of the insert unit and your brick or stone firebox opening for a clean, built-in look.
Yes! Most gas inserts utilize battery-backed ignition systems or millivolt standing pilots that generate their own micro-electricity. While the electric circulation fan/blower requires household power to blow air, the unit itself will continue to ignite and radiate powerful heat during a winter power outage.
Because the installation of an insert requires running a dedicated liner through the damper throat area, it is designed as a permanent heating upgrade. However, the insert unit and liner can be removed by professional masons if you ever decide to undergo a full hearth reconstruction.

why choose us

Built Different. On Purpose.

Live Call Answering

When you call, we answer. Speak to a real person instantly, no voicemails, no runaround.

Certified & Highly Trained

We invest in ongoing education and certifications to stay ahead of industry standards.

Modern Tools

We use advanced equipment and proven methods for safer, longer-lasting chimney performance.

Service With Integrity

Honest recommendations, fair pricing, and respect for your home, every time.

YEARS OF EXPERIENCE

Some of our trained technicians have been working with Chimneys for over 25 years!

On Time. Every Time.

We schedule precise arrival windows so your day isn’t left waiting on us.

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    +1 (770) 275-2500

financing available

At Chimney Guard we offer convenient financing options to help make your chimney services more accessible and stress-free. Enjoy high-quality workmanship today with flexible payment plans designed to fit your budget.

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