Gas fireplace insert installation cost

Looking for gas fireplace insert installation cost in Ontario, CA? Call FireplaceInstallation Pros 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

What affects the price

When you're looking at a new fireplace, the bottom line depends on a few specific things. First, are we working with an existing chimney or venting system, or does everything need to be built from scratch? The type of fuel matters too—gas, electric, or wood-burning units all carry different installation requirements. You also have to consider the finish work, like custom stonework, mantels, or drywall repairs around the unit. Labor complexity is the biggest factor here. We’ll get you the exact pricing confirmed free on the call.

About this service

Installing an insert is the process of putting a new unit inside an existing masonry fireplace. Costs vary based on the type of fuel line required and the amount of preparation needed to seal the chimney. If your chimney needs a new liner or extensive cleaning, the price will reflect those additional labor steps. We help you weigh these factors to find a solution that fits your budget. We provide exact pricing confirmed free on the call.

Installing a fireplace in the summer might seem unusual, but it is often the most efficient route. You avoid the peak-season rush, which usually means shorter wait times for an appointment. It is the perfect off-season project to ensure your home is ready long before the first chill of autumn hits. We can get the job done quickly while you focus on other home improvements.

Frequently asked in Ontario

What's the average cost to install a fireplace insert?

The average cost to install a gas fireplace insert in Ontario can vary based on the specific unit chosen and any necessary modifications for venting or gas line connections. The complexity of the installation site is also a factor. For an accurate quote tailored to your home, contacting a qualified professional is the best approach.

What is the 2 + 10 rule for fireplaces?

The 2+10 rule typically refers to chimney height regulations to ensure proper draft and safe exhaust. For gas fireplace inserts in Ontario, correct venting is absolutely critical for safe operation. Pros ensure your installation adheres to all necessary safety standards for optimal performance.

Can I install a fireplace myself?

How do you install a fireplace?

Professional installation of a gas fireplace insert in Ontario involves precise connection of the gas supply, secure mounting of the unit, and expert installation of the venting system. Pros ensure all connections are airtight and that the system meets all safety and performance standards. This ensures a safe and efficient operation.

How much does it cost to install a fireplace?

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: Central Park, Eastvale, Mira Loma, Rubidoux, Montclair — and every surrounding area.