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Chimney service
Fireplace Repair
Fireboxes, dampers, refractory panels and gas inserts. The repairs that make a fireplace usable again rather than decorative.
Real homeowner reviews
The short answer
A fireplace that smokes, will not shut, or has cracks you can see is not safe to keep using.
Most fireplace repair falls into three buckets. The firebox itself — panels, refractory mortar, a cracked back wall — which is a heat containment problem. The damper, which either will not open, will not close, or has rusted through, and decides whether your heating goes up the flue all winter. And draft, where smoke comes into the room instead of leaving, which is usually a flue problem wearing a fireplace costume. Which one you have changes the fix completely, and two of the three are visible from a chair.
Where the damage sits
Inside the firebox
Panels are what stand between the fire and the framing behind the wall. Cracks wider than a coin need the panel out, not a patch.
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Do you have this problem?
Signs you need fireplace repair
Smoke rolls into the room
A puff on lighting is normal until the flue warms. Smoke that keeps coming after fifteen minutes is a draft fault — a blockage, an undersized flue, or a smoke chamber that was never parged properly.
Cracked or crumbling firebox panels
The panels are what stand between the fire and the framing behind the wall. Cracks wider than a coin, or panels that have started to spall, need replacing before the next fire.
The damper will not open or close
Seized on rust, or a broken handle. Stuck open, you are heating the sky all winter. Stuck closed, the room fills with smoke the first time somebody forgets to check.
Gaps in the mortar between firebox bricks
Refractory mortar joints open up with heat cycling. Once you can see into a gap, heat and gas are reaching what is behind it. This is a repair, not a cosmetic touch-up.
Sooty or clouded glass on a gas fireplace
Gas burns clean when it burns right. Black film on the glass means incomplete combustion, which produces carbon monoxide. Turn it off and get it looked at.
Rust in the firebox or on the damper
Rust means sustained moisture where there should be none. The fireplace is the symptom; the leak is somewhere above it and has been running a while.
How we work
How the visit works
The same four steps every time, whatever the repair turns out to be.
- 1
Inspection first, always
A look at the crown, cap, flashing and exterior masonry, then the flue, damper and firebox — with a camera where the job calls for a level 2 scan. Whatever needs work gets shown to you, not just described.
- 2
A written estimate before anything
Scope, price and what is not included, in writing. Nothing starts until you approve it, and an emergency is not a reason to skip this step.
- 3
The work itself
Matched materials and the manufacturer's spec, not whatever is on the van. Drop cloths down, and the room left as it was found.
- 4
Verification and a report
A second scan after the work, and written findings you can keep, hand to an inspector, or send to an insurer.
What it covers
The jobs this actually includes
Not every job on this list is equally urgent, so they are ordered that way. A cracked liner stops you using the fireplace tonight; waterproofing can wait for a dry week.
The job — most urgent first
What it involves
On site
Firebox panel replacement
Safety repairCracked refractory panels cut out and replaced to the manufacturer's spec. On a prefabricated fireplace the panels must be the ones made for that model — a generic panel voids the listing and the insurance with it.
On site: 1–2 days
Gas fireplace and insert repair
Safety repairPilot and thermocouple faults, a burner running rich, a failed valve, or a glass seal that has gone. Gas appliances fail quietly, which is exactly why they get an annual look even though nothing appears wrong.
On site: About a day
Damper repair or replacement
StructuralFreeing a seized throat damper, replacing a broken plate, or fitting a top-sealing damper at the crown instead. A top-sealing unit closes against a gasket and stops the draft a throat damper never really did.
On site: About a day
Refractory mortar repointing
StructuralRaking out failed joints in the firebox and repointing in refractory mortar. Ordinary mortar in a firebox fails within a season, because it was never made to sit against flame.
On site: About a day
Draught and smoke chamber correction
Stops waterParging a rough smoke chamber smooth, or fitting a smoke guard where the opening is too large for the flue. This is the fix when the fireplace smokes and the flue is otherwise clear.
On site: 1–2 days
Hearth and surround repair
PreventiveCracked hearth slabs, loose facing tile, and the clearance to combustibles around the opening. Cosmetic until the clearance is wrong, at which point it is not cosmetic at all.
On site: About a day
Times are for the work itself, not for scheduling. Masonry needs roughly 40°F to cure properly, which is what limits this work in a northern winter rather than whether a crew is free.
What drives the price
Why fireplace repair quotes vary so much
- Whether it is a masonry fireplace or a prefabricated metal one
- Whether the parts are still made for that model, or need sourcing
- How much of the firebox is affected — one panel is not a rebuild
- Whether the real fault is the fireplace or the flue above it
- Gas work, which needs a qualified fitter and a combustion check
Freeing a damper or repointing a few firebox joints is a modest job. Full panel replacement, a new top-sealing damper or gas valve work runs into the high hundreds because of parts. Rebuilding a firebox is thousands. The reason nobody can quote fireplace repair over the phone is that a smoking fireplace and a cracked firebox look identical in a description and cost ten times apart.
Who we are
The people behind every visit
Founded by Ryan Carter in 2019. Every page you read here is reviewed by Ethan Miller, our chimney specialist. A written estimate before any work, and the findings in writing whether or not anything needs doing.
More about who we are →
The VIO Standard
- A written estimate first
- License and insurance checked
- Nothing starts without your OK
Good to know
Common questions
Why does my fireplace smoke into the room?
Nine times out of ten it is draft rather than the fireplace itself. The flue may be blocked, the house may be too airtight for the fire to draw against an extractor fan, the flue may be undersized for the opening, or the smoke chamber may be rough enough to trip the smoke on its way up. The order to check is: open a window and see if it clears, then have the flue scanned. A repair to the fireplace will not fix a problem that lives above it.
Can a cracked firebox be repaired or does it need replacing?
It depends on the crack and on the type. Hairline cracks in masonry firebrick can be repointed with refractory mortar. Cracks wide enough to slide a coin into, or panels that have started to flake, need the panel out. On a prefabricated fireplace the answer is usually replacement rather than repair, because the panels are a listed part of a tested assembly and patching them puts you outside the listing.
How much does fireplace repair cost?
The range is wide because the work is. Freeing a stuck damper or repointing joints in the firebox is at the low end. Replacing refractory panels, fitting a top-sealing damper or gas valve work sits in the high hundreds, mostly parts. A full firebox rebuild is a multi-thousand job. What we will not do is quote before someone has looked, because a smoking fireplace and a cracked firebox sound the same over the phone.
Do gas fireplaces need servicing if they look fine?
Yes, and more than wood ones need it, precisely because they look fine. A gas appliance running slightly rich produces carbon monoxide without any visible change except, eventually, a film on the glass. The annual check is a combustion test, a look at the venting, the seal on the glass, and the pilot and safety cutout. It is a short visit, and it is the one that finds the fault nobody can see.
Is it worth repairing an old fireplace or should I fit an insert?
Repair, if the masonry is sound and you use it occasionally for the look and the warmth of the room. An insert, if you are trying to heat with it — an open fire sends most of its heat up the flue, and a sealed insert changes that completely. The deciding factor is usually the flue: an insert needs a correctly sized stainless liner, and the cost of that is what makes the two options closer than people expect.
