Noah was professional, knowledgeable, and extremely thorough while working on both my air ducts and chimney. He took the time to explain everything and made sure the work was done properly from start to finish.
Read on GoogleFirebox Repair in Central Texas
Cracked firebrick, failed refractory panels and crumbling mortar joints rebuilt so the fire stays in the box. Photos before and after.
Or call +1 (737) 287 12 34for free inspection
The firebox is the part of the fireplace that holds the fire. Firebrick and refractory panels take the direct heat, and after enough seasons the mortar joints crumble and the panels crack. Once there is a gap, heat reaches the framing behind the box.
When Firebox Repair May Be Needed
Cracks wider than a coin and missing mortar are the point where the fireplace stops being safe to use. Repointing joints and replacing damaged brick or panels keeps the heat inside the firebox where it belongs. It is one of the most common findings on our inspections and one of the easier ones to fix early.
Cracks in the firebrick or the refractory panels of a prefab unit
Mortar joints crumbling or missing between the bricks
Bricks loose or falling out of the back wall
Rust through the metal firebox of a factory-built fireplace
A cracked or sagging lintel above the opening
Smoke smell in the wall next to the fireplace
What’s Included in Our
Firebox Repair
Service
The exact scope depends on your fireplace, the flue and what the inspection finds.
Firebox cleaned to bare brick so every joint can be seen
Mortar joints repointed with refractory mortar
Cracked or missing firebrick replaced
Refractory panels replaced in prefab units
Damper and lintel checked
Photos before and after
Written quote before any work
How Firebox Repair
Works
Every job begins with a free professional inspection. The final scope depends on the home, the system and what we find.
Free inspection with the firebox cleaned enough to see the joints
Written quote per line
Repair, usually one visit; refractory mortar cures before the first fire
After photos and the go-ahead to light it
Recent Firebox Repair
Projects
Examples of firebox repair and related work completed for homeowners across the Hill Country.

BeforeAfter
BeforeAfter
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BeforeAfterWhat Hill Country
Homeowners Say
Read what local homeowners say about their experience with our crew. Reviews left for our crew under Air Duct Busters, the company World of Chimney grew out of. Every one is on Google.
We used Air Duct Busters for a chimney inspection and cleaning. Noah contacted us with his expected time of arrival. He was on time, pleasant, courteous and knowledgeable. He explained what he looks for in an inspection.
Read on GoogleThese guys were amazing! In 35 minutes they diagnosed safety issues, did the cleaning and gave me all my options for making fixes. Will definitely be calling them again!
Read on GoogleHad Noah come and inspect and clean chimney. Provided details and explained process and educated on potential hazards. Great job thank you!
Read on GoogleFirebox Repair Across Central Texas
We provide firebox repair throughout Central Texas, including Marble Falls, Horseshoe Bay, Burnet, Georgetown, Leander, Cedar Park, Lakeway, Dripping Springs and the Highland Lakes communities.
Read Before
You Book
Short reads from the crew: what we find in Hill Country chimneys, what it costs, and what to do about it.

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Get the chimney inspected before the first cold front, not during it
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September 12, 2026 · 4 min read

Buying a home in the Hill Country: the chimney and vent check the inspector skips
A general home inspection notes that the fireplace exists. It does not go up the flue, check the crown or find where the dryer vent ends. What to check before closing, and what it costs when you do not.
September 12, 2026 · 4 min read
Frequently Asked
Questions About
Firebox Repair
Can I keep using the fireplace with a cracked firebrick?
Hairline cracks are usually fine. A crack you can fit a coin in, or missing mortar, means stop until it is repaired.
What is a refractory panel?
The moulded panels that line a factory-built fireplace. They crack with age and are replaced as a set or individually.
How long before I can use it again?
Refractory mortar needs about a day to cure, then small fires for the first few uses.
Do you repair prefab fireplaces?
Yes, panels, grates and dampers on most brands.
Ready to Book Firebox Repair?
Start with a free professional inspection. We look, photograph, and put the price in writing before any work.
+1 (737) 287 12 34