How Much Does It Cost to Convert a Wood Fireplace to Gas in Philadelphia, PA?

By Garrett Sullivan, 16 years of experience · November 13, 2026 · 6 min read

In Philadelphia, our gas fireplace service starts at $49, but that is not a wood-to-gas conversion price; gas log installation has no listed starting amount. The scope depends on gas access, firebox compatibility and venting, which we check before planning the work.

Our Starting Prices in Philadelphia

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How Much Does It Cost to Convert a Wood Fireplace to Gas?

The listed $49 starting price is for gas fireplace service, not conversion or gas log installation. A conversion needs a separate assessment of your fireplace, chimney or vent, and gas supply; the work can involve more than placing logs in the firebox.

The final scope changes with the type of gas appliance, whether a suitable gas connection already reaches the fireplace, and whether the existing firebox and venting meet that appliance’s requirements. We offer gas log installation in Philadelphia and the surrounding service area.

What a Philadelphia Wood-to-Gas Conversion Needs

A gas-log setup uses a burner and logs designed for a compatible fireplace. Before installation, the fireplace opening, firebox condition, gas supply and venting need to be checked against the selected product; an existing wood-burning chimney does not by itself confirm that every gas setup will fit.

The installation scope may also change if the firebox needs repair or the gas connection needs work. We assess those parts before settling the work plan. The CSIA homeowner resources also cover gas appliances and chimneys, including why appliance and venting compatibility matters.

Which Gas Fireplace Option Fits Your Existing Firebox?

The right choice depends on the fireplace and the way you want to use it. These options are not interchangeable, so have the appliance and venting checked before choosing.

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What Changes the Scope of Gas Log Installation?

These are the checks that most directly shape the work and help distinguish a gas-log installation from a basic service visit.

• Gas supply — A usable connection near the fireplace can simplify the scope. If the line or shutoff needs work, that must be addressed as part of planning; do not connect or alter gas piping yourself.
• Firebox and opening — The installer checks the firebox condition and opening dimensions against the selected logs or insert. Cracked or damaged parts can require repair before a new appliance goes in.
• Chimney and venting — The chosen gas appliance determines what venting arrangement is needed. Have the chimney or vent checked rather than assuming a wood-burning setup can be used unchanged.
• Appliance choice — Vented logs, vent-free logs and gas inserts have different installation requirements. Confirm that the chosen product is approved for your fireplace and the way it will be installed.

Seven Checks Before Gas Logs Go Into a Wood Fireplace

You can gather useful information without handling gas parts or dismantling the fireplace. Leave gas connections and installation work to the service professional.

1. Identify the fireplace — Note whether the firebox is masonry or a factory-built fireplace, if you know. Check for a product label or manual, and keep that information available for the assessment.
2. Measure the opening — Use a tape measure to record the width, height and depth of the firebox. Check the measurements twice; the selected gas-log set or insert must fit its listed opening requirements.
3. Look for visible damage — With the fireplace cold, look for loose or missing masonry, damaged firebrick and signs of water entry. Do not use the fireplace if you see a condition that could affect safe operation; arrange an inspection first.
4. Locate the gas shutoff — Look for a gas shutoff near the fireplace without turning it or removing a cover. Note whether a gas connection appears to be present, but leave line testing and changes to a qualified gas professional.
5. Decide what you want installed — Choose whether you are comparing gas logs with an insert, rather than assuming one can replace the other. The product choice affects the required firebox fit and venting checks.
6. Have the existing setup assessed — A chimney sweep can check the firebox and chimney or vent before you commit to an appliance. Book an inspection when the condition or compatibility of the existing setup is uncertain.
7. Check operation after installation — Have the installer demonstrate the controls and confirm the appliance operates as intended. Check that the flame responds to the controls and that the venting arrangement matches the product instructions.

Three Fireplace Situations and the Starting Prices That Apply

For an existing gas fireplace that needs service, our gas fireplace service starts at $49. That is a service starting price, not a charge for converting a wood fireplace or installing gas logs.

For a wood fireplace where you want the chimney condition checked before choosing an appliance, our chimney inspection starts at $39. An inspection checks the chimney; it does not include gas-log installation.

For a homeowner ready to convert to gas logs, we offer gas log installation, but it has no listed starting price. A gas fireplace insert is another option we install; see how much it costs to install a gas fireplace for information about that different project. You can compare the available starting prices on our prices page.

Need help now? (267) 705-6118

When to Stop Using the Fireplace and Call a Chimney Sweep

Do not proceed with conversion planning as a substitute for addressing visible damage, a strong smoke problem, or an appliance that does not operate correctly. Stop using the fireplace and arrange an inspection so the firebox and venting can be checked before a new gas setup is installed.

Call a chimney sweep in Philadelphia when you cannot confirm the chimney’s condition, when the fireplace has been unused for a long time, or when you see damage inside the firebox. The inspection can identify chimney concerns that affect the conversion plan.

How to Book Gas Log Installation in Philadelphia

We travel to customers in Philadelphia and serve towns across the Philadelphia metro area within 50 miles. To book, share your fireplace type, opening measurements and whether a gas connection is present; photos of the firebox can also help describe the setup.

The on-site time depends on whether the visit covers an assessment or installation and whether the gas connection or fireplace needs additional work. We offer same-day service, and you can book through our contact page or by phone.

Frequently asked questions