Get matched with top fireplace pros in Alta, IA

If your gas fireplace is vented through a chimney, a chimney cap is highly recommended. While not all gas fireplaces require a traditional chimney, for those that use one, a cap provides several key benefits. It prevents rain, debris, and animals from entering the chimney, which can cause blockages or damage. A cap also helps prevent downdrafts that could push harmful gases like carbon monoxide back into your home. When installing a cap, ensure it is appropriate for a gas fireplace and does not restrict proper ventilation.

There are several ways to determine if your chimney or fireplace damper is open or closed. A simple method is to check for airflow by placing your hand near the fireplace opening; if you feel a draft or hear wind whistling, the damper is open. An open damper might also make the room feel cooler, similar to the outdoor temperature, or cause your HVAC system to work harder than usual. For a more definitive test, you can try a visual inspection, although it may be difficult to see. Alternatively, you can light a small piece of paper and observe the smoke; if it is drawn up the chimney, the damper is open. Always use the damper handle to adjust its position.

You can close up a chimney instead of demolishing it. Homeowners often go this route because the cost of removing a chimney, especially a structurally important chimney, can be expensive.

Properly closing up a chimney involves closing and sealing the damper, installing a chimney cap damper, and sealing the fireplace opening with a door or bricks. The cost to seal and cap a chimney is around $500 to $650—significantly less than the average chimney removal cost.

Professional chimney cleaning, also known as chimney sweeping, typically costs between $130 and $400, with a national average of about $260. The final price depends on several factors, including the size and accessibility of your chimney, the number of chimneys being cleaned, and the type of chimney you have. A standard cleaning involves a chimney sweep scraping creosote, dirt, and other debris from the entire flue. Many professionals also include an inspection with this service, but the cost of any necessary repairs is typically extra. Additional services, such as installing a fireplace damper, will also increase the total cost. It is recommended to schedule a cleaning and inspection annually, preferably before you begin using your fireplace for the season, and to get price quotes from at least three companies to find the best deal.