Average Gas Fireplace Appliance with Installation Cost in Long Island & NYC
For most homeowners, gas fireplace installation falls into the following ranges:
-
Gas insert into existing fireplace $6,000 – $9,500
Typical Installed Cost (IProject ncludes appliance & venting)
-
New direct vent gas fireplace $8,000 – $12,000+
Typical Installed Cost (IProject ncludes appliance & venting)
-
Luxury linear or custom installations $10,000 – $25,000+
Typical Installed Cost (IProject ncludes appliance & venting)
Cost Breakdown: What Affects Installation Price?
1. Type of Gas Fireplace
The biggest factor is whether you are converting an existing fireplace or installing a new one. Typical ranges include:
-
Gas fireplace insert about $6,500 to $9,000 installed
(existing fireplace conversion)
-
New gas fireplace installation often $8,500 to $11,000+
depending on framing and venting requirements
Installing an insert into an existing wood-burning fireplace is usually more cost-effective because much of the structure already exists.
Kamil Lapinsky - Owner and Expert
2. Professional Installation Labor
Professional installation labor typically ranges from:
- $1,895 to $3,000
This includes:
- Fireplace setup and connection
- Gas and electrical coordination
- Safety testing
- Proper venting installation
- Final operation testing
Labor costs vary depending on accessibility and how much preparation is required.
3. Venting Installation
Most modern gas fireplaces use direct vent systems that exhaust safely through an exterior wall or roof.
Venting installation can add approximately:
- $995 to $2,500
depending on distance to an exterior wall, ceiling height, and home construction.
4. Gas Line Installation
If a gas line is already nearby, installation is straightforward. If a new line must be run, additional costs may apply depending on distance and access.
5. Finishing and Design Work
Finishing work is often overlooked when budgeting. Costs can increase depending on:
- Stone or tile surrounds
- Custom mantels
- Built-in cabinetry
- Media wall or TV integration
These design elements can significantly affect total project cost.
About Permits in Long Island and NYC
In most residential gas fireplace installations, permits are not typically required, especially when replacing or upgrading an existing fireplace. However, if a homeowner requests or insists on pulling a permit, it can be done, but it usually involves additional cost and time due to inspections and paperwork. Your installer should explain whether a permit makes sense for your specific project.
Choosing the Right Fireplace Installer Matters
One of the biggest mistakes homeowners make is choosing installation based on price alone. A properly installed fireplace is a permanent fixture in your home and should be installed by experienced professionals.
When comparing installers, look for:
Store installers
Installers who work directly for the fireplace store you are purchasing from
10+ experience
At least 10 years of fireplace installation experience
Certified technicians
Fully trained and Certified
Brand training
Proper training with the brands being installed
1-year warranty
A minimum 1-year in-house installation warranty
This matters because some low-cost installers offer what is often called the “tail light warranty” — once they leave the driveway, support disappears. A fireplace installation priced at $850 may sound attractive upfront, but improper installation can lead to venting problems, performance issues, or costly corrections later. Working with installers who are directly connected to the showroom ensures accountability and long-term support.
Why Visiting a Fireplace Showroom First Helps
Before committing to installation, visiting a showroom allows homeowners to:
- Compare flame appearance and heat output
- Understand sizing options
- See venting configurations
- Get accurate installation estimates
This helps avoid choosing a fireplace that looks good online but does not fit your home or installation requirements.
Final Thoughts
Gas fireplaces remain one of the most popular home upgrades in Long Island and NYC because they provide real flame, strong heat output, and convenience without the maintenance of wood-burning fireplaces. Installation costs vary, but choosing experienced installers and the right fireplace from the beginning helps ensure long-term performance and safety. The best first step is to speak with experienced fireplace professionals who can evaluate your home and explain your options clearly.

