Installation of gas fireplace cost

Looking for installation of gas fireplace cost in Ontario, CA? Call FireplaceInstallation Solutions for a contact a provider — no obligation. Licensed, insured certified fireplace pros serve Ontario and the surrounding area, and you'll get straight answers on timing and what affects the price.

Last updated: September 24, 2026

Local housing snapshot: Ontario, CA

Population: about 178,000
Median year homes were built: 1980
Homes built before 1980: 51%
Owner-occupied homes: 57%

Older homes can mean different materials, wiring, venting or permit needs. Mention your home's age when you contact a provider.

Source: U.S. Census Bureau, American Community Survey 2019–2023 5-year estimates.

What affects the price

When you start planning a fireplace installation, the final bill depends on a few major factors. Choosing between a simple electric unit, a gas insert, or a full wood-burning masonry build creates the biggest difference in cost. You also have to consider the existing setup of your home; running new gas lines or venting through a roof will naturally add labor hours compared to a straightforward swap. Finishing materials like custom stonework or mantel pieces also shift the total.

Most people do not think about fireplaces in the summer, which makes it the best time for a stress-free installation. You will likely find more convenient appointment times and faster project turnaround. It is the perfect window to handle masonry or venting work while the weather is dry and clear, keeping the process clean and efficient for your home.

Frequently asked in Ontario

What's the average cost to install a fireplace?

What is the 2 + 10 rule for fireplaces?

Can I install a fireplace myself?

How do you install a fireplace?

Professional installation involves preparing the site, securing the fireplace unit, connecting gas or electrical lines, ensuring proper venting, and conducting thorough safety checks. The process is tailored to your specific home and chosen fireplace in Ontario.

How much does it cost to install a fireplace?

The price for installing a fireplace in Ontario depends on the unit chosen, the complexity of the installation, and any required modifications. We can provide a detailed quote after discussing your specific needs and home.

Do fireplaces need to be professionally installed?

Also serving nearby: Chino · Rancho Cucamonga · Jurupa Valley · Pomona · Fontana

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More on this: NFPA heating safety — heating equipment fire data.

Service area details

182,457residents

3,650per sq mile

4ZIP codes served

Serving all of Ontario — population 182,457; about 3,650 residents per square mile across 50.0 sq mi. ZIP codes covered include 91758, 91761, 91762, 91764.

Neighborhoods served in Ontario: Downtown Ontario, Concord, Vina De Vida, Central Park, Montclair — and every surrounding area.