Fireplaces
Fireplace Insert Installation
A fireplace insert is a sealed, efficient firebox that fits into an existing open fireplace, turning a drafty ambiance feature into a real heat source. Available in wood, gas, and pellet, an insert also needs a properly sized liner running up the chimney, so installation is as much about the flue as the box itself.
Why people install inserts
An open masonry fireplace loses much of its heat up the chimney and can even pull warm air out of the room. A sealed insert burns far more efficiently and radiates usable heat into the living space. For homeowners who want their fireplace to actually warm a room, an insert is the common upgrade.
Inserts come in wood, gas, and pellet versions, so the choice depends on the fuel you want to use and what your setup supports.
The flue is part of the job
An insert almost always requires a correctly sized liner connected from the unit up through the existing flue, because the insert's outlet is smaller than the original fireplace flue. Skipping or mis-sizing that liner causes poor draft and unsafe operation. So a proper insert installation includes assessing the chimney and installing or confirming the right liner.
We evaluate the firebox, flue, and clearances before installing, and match the liner to the insert and fuel. Any code and permit requirements are determined for the property.
Choosing the right unit
The right insert depends on the room size you want to heat, the fuel, and the dimensions and condition of your existing fireplace. We help match a unit to your fireplace and goals, and we are straightforward if the existing opening or flue needs work first to accept one properly.
An insert makes sense if you want
- Your fireplace to actually heat the room
- Far better efficiency than an open fire
- A sealed, controllable firebox
- A wood, gas, or pellet option
- To stop losing heat up the chimney
- A cleaner, more contained burn
Insert installation includes
- Evaluating the firebox, flue, and clearances
- Installing or confirming a correctly sized liner
- Matching the unit to the room and fuel
- Fitting the insert to the existing opening
- Confirming proper, safe operation
- Any code and permit requirements for the property
Serving St. Louis & Kansas City
We provide fireplace insert installation across both of our home regions — the St. Louis metro, including the Metro East communities in Illinois, and the Kansas City metro on both the Missouri and Kansas sides — generally within about 65 miles of each city. Wherever you are, the approach is the same: we look at the actual system on site, explain what we find in plain terms, and lay out the options before any work begins. We use cautious, honest language about what we can and can't determine, and we don't quote a price or promise a fix for a problem we haven't assessed in person. Each metro has its own direct phone number, so you always reach the right place, and we're available around the clock to take your call and get you on the schedule.
The work depends on the specific appliance and fuel, whether parts are available for the unit, the condition of the venting, and whether the system is a good candidate for the change you have in mind — all confirmed on site.
Keeping ahead of it
Most no-heat calls in the cold months trace back to deferred service. A periodic check of the burner, sensors, glass, gaskets, and venting keeps a fireplace lighting on the first try and running cleanly, and keeps an outdoor unit shedding water rather than soaking it up. If you ever smell gas, leave the unit off and ventilate — that isn't a wait-and-see situation, and it's worth a prompt call.
Questions
Fireplace Insert Installation FAQs
Do I need a liner for a fireplace insert?
Almost always. An insert needs a correctly sized liner run up the flue for proper, safe operation. A proper installation includes assessing and fitting that liner.
Can an insert really heat my room?
Yes. A sealed insert is far more efficient than an open fireplace and radiates usable heat, unlike an open fire that sends most of its heat up the chimney.
Wood, gas, or pellet insert?
Each suits different priorities for convenience, heat, and fuel. We help match the type to your fireplace, chimney, and how you want to use it.
Do you service both St. Louis and Kansas City?
Yes. This is one of the services we provide across both the St. Louis and Kansas City metro areas, each with its own direct phone number. Call the number for your area and we'll take it from there.
St. Louis metro
Fireplace Insert Installation near St. Louis
Available across the St. Louis service area, including:
Kansas City metro
Fireplace Insert Installation near Kansas City
Available across the Kansas City service area, including:
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Need fireplace insert installation? Let’s talk.
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Get in touch
Request fireplace insert installation
Tell us about your chimney or fireplace and the best number to reach you. Full name, phone, and ZIP are required.
- Available 24/7 to take your call and schedule a visit.
- We assess the system on site and explain options before any work.
- Serving the St. Louis and Kansas City metro areas.