Fireplace installation is the work of setting up a brand-new wood or gas appliance, or fitting an insert into an existing masonry fireplace, so it vents correctly and meets code. Whether you are adding a fireplace where there was none, replacing an old open hearth with an efficient insert, or converting an unused firebox into a modern heat source, the details that matter are the same: the right appliance for the space, a properly sized and listed liner or vent, correct clearances to combustible framing and trim, and a permit where your jurisdiction requires one. Done right, a new fireplace burns cleaner, heats better, and gives you years of dependable use.
What fireplace installation covers
This service is about adding heat, not fixing what you already have. Common projects include:
- A first-time fireplace or stove in a home that never had one, including the framing, venting, and hearth protection a new unit needs.
- An insert upgrade, where a modern wood or gas insert is fitted into an existing masonry firebox to dramatically improve efficiency and reduce smoke.
- Converting an unused or open fireplace into a cleaner-burning, better-heating appliance.
Every installation is matched to your space and your chimney. A factory-built, so-called zero-clearance fireplace requires an insert specifically listed and tested for that unit; you cannot mix and match. A masonry chimney usually needs a listed stainless-steel liner sized to the new appliance, insulated where code or the manufacturer calls for it, running continuously from the appliance to the top.
Signs it is time for a new fireplace or insert
- You want to add a fireplace to a room that has never had one.
- Your open fireplace looks nice but barely heats the room, and you feel a cold draft when it is not lit.
- An old wood stove or insert is worn out, inefficient, or no longer meets current standards.
- You have an unused firebox you would like to turn into a real heat source.
- You are remodeling and want the fireplace done correctly the first time, with the venting and clearances built in rather than patched later.
What to expect from the process
A sound installation starts on-site, not over the phone. Fireplace sizing, chimney condition, clearances, and venting all have to be assessed in person before anyone can recommend an appliance.
- Assessment and appliance selection. A technician evaluates the space, the existing chimney or vent path, and your heating goals, then helps you choose an appropriately sized, listed unit. For a masonry chimney, this is a natural point to confirm its condition; a level 2 evaluation is standard when a fireplace or flue is being changed. You can read more in our guide to chimney inspection levels explained.
- Venting and liner. The vent or liner is sized and installed to the appliance's specifications, with correct clearance to combustible framing, trim, mantels, and floors.
- Permits and code. Where your local authority requires a permit, the installation is planned to both the manufacturer's listed instructions and local code, which often requires both for approval.
- Setup and a first burn. The appliance is set, connected, and checked so it drafts properly and operates the way it should from day one.
Why this is a job for a professional
Fireplace installation is where safety and performance are decided. An undersized or unlined flue, a clearance shortfall behind a wall, or an insert that was never tested for your factory-built firebox can lead to poor draft, a smoky room, or a genuine fire hazard hidden inside the wall. A qualified installer sizes the venting correctly, respects the listed clearances, and installs the liner or vent to the manufacturer's instructions and applicable code.
Gas appliances add another layer. Any gas-line connection is licensed work and does not belong in homeowner hands. If you ever smell gas, do not investigate or try to fix it, leave the home and call your gas utility or 911 from outside. Basic homeowner steps such as checking a pilot per the manufacturer's directions are fine, but the gas connection itself is for a licensed technician. Our dedicated gas fireplace installation service covers that side in full.
Serving greater Seattle and the Puget Sound
Across Seattle, Tacoma, the Eastside, and the surrounding Puget Sound communities, a well-installed fireplace or efficient insert earns its keep through a long, damp, chilly heating season. Many older regional homes have handsome but inefficient open fireplaces that are ideal candidates for an insert upgrade, and plenty of homeowners want to add clean, dependable warmth to a space that never had it. Whatever your project, we handle the venting, liner, and code details so the finished fireplace is safe and built to last.
Frequently Asked Questions
Can I put a fireplace insert into any existing fireplace?
Not automatically. The insert has to be matched to your firebox and chimney, and a factory-built, zero-clearance fireplace requires an insert specifically listed and tested for that unit. A masonry fireplace usually needs a listed liner sized to the new appliance. That is why the appliance is selected after an on-site look, not before.
Do I need a permit to install a new fireplace?
Often, yes. Many jurisdictions require a permit for a new fireplace, insert, or fuel conversion, and approval typically depends on meeting both the manufacturer's listed instructions and local code. We plan the installation to those requirements; specific permit rules vary by city and county across the Puget Sound region.
Will a new insert really heat better than my open fireplace?
Usually by a wide margin. An open masonry fireplace loses most of its heat up the chimney, while a modern EPA-certified insert is a sealed, efficient appliance that radiates heat back into the room and burns cleaner using less wood. The exact gain depends on the unit and your home.
How long does a fireplace installation take?
It depends on the project. A straightforward insert into a sound existing chimney can often be completed in a day, while a first-time fireplace that involves new framing, venting, and hearth work takes longer. After an on-site assessment we can give you a realistic timeline and a quote.
Should I choose wood or gas?
Both work well; it comes down to how you want to use the fireplace. Wood inserts offer strong, efficient heat and a traditional fire, while gas offers push-button convenience and steady output. We can walk through the trade-offs for your space, and our separate gas fireplace installation service covers the gas-specific requirements.